IPFX Pubco提交与 Quantum Space 业务合并相关的 S-4 注册声明修正案

As filed with the Securities and Exchange Commission on October 22, 2026.

File No. 333-299286

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

_______________________

AMENDMENT NO. 1
TO
FORM S-4
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933

_______________________

IPFX PUBCO, INC.

(Exact name of registrant as specified in its charter)

_______________________

For Co-Registrants, see “Table of Co-Registrants” on the following page.

1680 Michigan Avenue Suite 700 #1031
Miami Beach, FL 33139
(212) 295-5830

(Address, including zip code and telephone number, including area code, of registrant’s principal executive offices)

_______________________

Kevin Shannon
Chief Executive Officer
1680 Michigan Avenue Suite 700 #1031
Miami Beach, FL 33139
(212) 295-5830

(Name, address, including zip code and telephone number, including area code, of agent for service)

_______________________

Copies to:

_______________________

Approximate date of commencement of proposed sale to the public: As soon as practicable after (i) this registration statement is declared effective and (ii) upon completion of the applicable transactions described in the enclosed proxy statement/prospectus.

If the securities being registered on this Form are being offered in connection with the formation of a holding company and there is compliance with General Instruction G, check the following box: ☐

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering: ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering: ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company, or emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. If applicable, place an X in the box to designate the appropriate rule provision relied upon in conducting this transaction: ☐

Exchange Act Rule 13e-4(i) (Cross-Border Issuer Tender Offer) ☐

Exchange Act Rule 14d-1(d) (Cross-Border Third-Party Tender Offer) ☐

The Registrant and Co-Registrants hereby amend this Registration Statement on such date or dates as may be necessary to delay its effective date until the Registrant and Co-Registrants shall file a further amendment which specifically states that this Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended, or until the Registration Statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

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TABLE OF CO-REGISTRANTS

____________

(1)      The Co-Registrant Quantum Space, LLC has the following principal executive office:

Quantum Space, LLC.
801 Thompson Avenue
Rockville, MD 20852

(2)      The agent for service for the Co-Registrant Quantum Space, LLC is:

Jim Bridenstine
Chief Executive Officer
Quantum Space, LLC.
801 Thompson Avenue
Rockville, MD 20852

(3)      The Co-Registrant Inflection Point Acquisition Corp. VI has the following principal executive office:

Inflection Point Acquisition Corp. VI
1680 Michigan Avenue Suite 700 #1031
Miami Beach, FL 33139

(4)      The agent for service for the Co-Registrant Inflection Point Acquisition Corp. VI is:

Kevin Shannon
Chief Executive Officer
Inflection Point Acquisition Corp. VI
1680 Michigan Avenue Suite 700 #1031
Miami Beach, FL 33139

*        Prior to the consummation of the Business Combination described herein, the Co-Registrant Inflection Point Acquisition Corp. VI intends to effect a deregistration under Section 206 of the Companies Act (Revised) of the Cayman Islands and a domestication under Section 388 of the Delaware General Corporation Law, pursuant to which the Registrant’s jurisdiction of incorporation will be changed from the Cayman Islands to the State of Delaware.

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The information in this preliminary proxy statement/prospectus is not complete and may be changed. These securities may not be issued until the registration statement filed with the U.S. Securities and Exchange Commission is effective. This preliminary proxy statement/prospectus is not an offer to sell these securities and does not constitute the solicitation of an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

PRELIMINARY PROXY STATEMENT — SUBJECT TO COMPLETION DATED OCTOBER 22, 2026

PROXY STATEMENT FOR EXTRAORDINARY GENERAL MEETING OF
INFLECTION POINT ACQUISITION CORP. VI
(A CAYMAN ISLANDS EXEMPTED COMPANY)

PROSPECTUS FOR UP TO 106,680,270 SHARES OF NEW QUANTUM SPACE CLASS A-1 COMMON STOCK,
UP TO 6,272,380 SHARES OF SERIES A PREFERRED STOCK,

15,833,333 WARRANTS TO PURCHASE UP TO 15,833,333 SHARES OF NEW QUANTUM SPACE CLASS A-1
COMMON STOCK, AND SERIES A PREFERRED INVESTOR WARRANTS TO PURCHASE
UP TO 14,117,645 SHARES OF COMMON STOCK,

OF
IPFX PUBCO, INC.

On June 7, 2026, the board of directors (the “Inflection Point Board”) of Inflection Point Acquisition Corp. VI, a Cayman Islands exempted company (“Inflection Point”), unanimously approved the Business Combination Agreement, dated as of June 8, 2026 (the “Signing Date”), by and among Inflection Point, IPFX PubCo, Inc., a Delaware corporation and direct, wholly owned subsidiary of Inflection Point (“PubCo”), IPFX Merger Sub, Inc., a Delaware corporation and direct, wholly owned subsidiary of PubCo (“Merger Sub”) and Quantum Space, LLC, a Delaware limited liability company (referred to herein prior to the Business Combination, as “Quantum Space” and subsequent to the Business Combination, as “Quantum Space OpCo”) (as amended on October 22, 2026, and as it may be further amended, restated, supplemented or otherwise modified from time to time in accordance with its terms, the “Business Combination Agreement”), pursuant to which, among other things and subject to the terms and conditions therein, as a single continuous transaction: (1) Inflection Point will, as an intermediate and transitory step in the business combination transaction, change its jurisdiction of incorporation by deregistering from the Register of Companies in the Cayman Islands as a Cayman Islands exempted company by way of continuation out of the Cayman Islands and continuing and domesticating as a corporation incorporated under the laws of the State of Delaware (the “Domestication,” and Inflection Point after the Domestication, “Post-Domestication Inflection Point”), (2) following the Domestication, Merger Sub will merge with and into Post-Domestication Inflection Point, with Post-Domestication Inflection Point surviving the merger as a wholly owned subsidiary of PubCo (the “Merger”), (3) Quantum Space will complete a recapitalization whereby all outstanding equity securities of Quantum Space, other than the Series B convertible preferred units of Quantum Space (the “Pre-Funded Preferred Units”) and the warrants (the “Pre-Funded Warrants”) to purchase common units of Quantum Space issued to the Pre-Funded PIPE Investors (as defined below) in the Series B Investment (as defined below), will be converted or exchanged into common units of Quantum Space (the “Quantum Space Common Units”) and (4) the other transactions contemplated by the Business Combination Agreement and documents related thereto will be consummated, resulting in a combined company whereby Quantum Space OpCo will become a subsidiary of Post-Domestication Inflection Point, in an umbrella partnership C corporation (“Up-C”) structure, in which substantially all of the assets and the business of the combined company will be held by Quantum Space OpCo and its subsidiaries (such transactions, together with the Merger and the Domestication, the “Business Combination” and the closing of the Business Combination, the “Closing”). In connection with the Business Combination, PubCo will change its name to “Quantum Space, Inc.” (such company after the Closing, “New Quantum Space”). A copy of the Business Combination Agreement is attached to the accompanying proxy statement/prospectus as Annex A.

Subject to the satisfaction or waiver of the conditions of the Business Combination Agreement, including approval of Inflection Point’s shareholders, (a) immediately prior to the Domestication, pursuant to that certain Sponsor Support Agreement, dated as of June 8, 2026 (the “Sponsor Support Agreement”), by and among Inflection Point, Quantum Space, Inflection Point Holdings VI LLC, a Delaware limited liability company (the “Sponsor”), and Inflection Point Fund I, LP, a Delaware limited partnership (“Inflection Point Fund”), the holders of the Class B ordinary shares of Inflection Point, par value $0.0001 per share (each, a “Founder Share” or “Inflection Point Class B Share,” and the holders, the “Inflection Point Class B Shareholders”), will elect to convert each Founder Share, on a one-for-one basis, into a Class A ordinary share of Inflection Point, par value $0.0001 per share (each, an “Inflection Point Class A Share” and together with the Founder Shares, the “Inflection Point Ordinary Shares”) (the “Sponsor Share Conversion”); (b) in connection with the Domestication, (i) each of the then issued and outstanding Inflection Point Class A Shares will convert automatically, on a one-for-one basis, into a share of common stock, par value $0.0001 per share, of Post-Domestication Inflection Point (the “Post-Domestication Inflection Point Common Stock”); (ii) each

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then issued and outstanding warrant to purchase one Inflection Point Class A Share (“Inflection Point Warrants”) will convert automatically into a warrant to purchase one share of Post-Domestication Inflection Point Common Stock (each warrant, a “Post-Domestication Warrant”); and (iii) each of the then issued and outstanding units of Inflection Point consisting of one Inflection Point Class A Share and one-third of one Inflection Point Warrant (the “Inflection Point Units”) shall be cancelled and will thereafter entitle the holder thereof to one share of Post-Domestication Inflection Point Common Stock and one-third (1/3rd) of one Post-Domestication Warrant.

Upon the terms and subject to the satisfaction or waiver of the conditions of the Business Combination Agreement, immediately prior to the effective time of the Merger (the “Effective Time”):

(1)    each share of Post-Domestication Inflection Point Common Stock issued and outstanding immediately prior to the Effective Time (other than any shares owned by Post-Domestication Inflection Point, PubCo or Merger Sub) shall automatically be cancelled and extinguished and converted into the right to receive one share of Class A-1 common stock of PubCo (the “New Quantum Space Class A-1 Common Stock”), following which all such shares of Post-Domestication Inflection Point Common Stock shall cease to be outstanding and shall cease to exist;

(2)    each Post-Domestication Warrant issued and outstanding immediately prior to the Effective Time shall automatically be assumed by PubCo and shall thereafter constitute a warrant to acquire one share of New Quantum Space Class A-1 Common Stock (each a “New Quantum Space Warrant”), on substantially the same terms and conditions as the Post-Domestication Warrants and the outstanding warrants of Inflection Point;

(3)    any shares of Post-Domestication Inflection Point Common Stock or other capital stock of Post-Domestication Inflection Point that are owned, immediately prior to the Effective Time, by Post-Domestication Inflection Point (including as treasury shares), PubCo or Merger Sub shall automatically be cancelled, retired and cease to exist, without any conversion thereof or payment therefor; and

(4)    each share of common stock of Merger Sub issued and outstanding immediately prior to the Effective Time shall automatically be converted into one validly issued, fully paid and non-assessable share of common stock of Post-Domestication Inflection Point (as the surviving corporation in the Merger), which shares shall, immediately following the Effective Time, constitute the only outstanding shares of capital stock of Post-Domestication Inflection Point and shall be held by PubCo, with the result that Post-Domestication Inflection Point shall continue as the surviving corporation in the Merger and as a direct, wholly owned subsidiary of PubCo.

In connection with the transactions contemplated by the Business Combination Agreement, on the Signing Date, Quantum Space entered into certain securities purchase agreements (the “Pre-Funded SPAs”), with certain accredited investors named therein, including Inflection Point Fund, (collectively, the “Pre-Funded Investors”). Pursuant to the Pre-Funded SPAs, the Pre-Funded Investors agreed, among other things, to purchase, and Quantum Space issued and sold, an aggregate of 5,882,352 Pre-Funded Preferred Units and Pre-Funded Warrants to purchase 5,882,352 Quantum Space Common Units, at an initial exercise price of $12.00 per unit, substantially concurrently with the execution and delivery of the Business Combination Agreement for an aggregate purchase price of approximately $60 million (the “Pre-Funded Investment”).

Pursuant to the Business Combination Agreement, the aggregate consideration (the “Aggregate Consideration”) to be paid to the holders of securities of Quantum Space (the “Quantum Space Equity Holders”) (other than the holders of the Pre-Funded Preferred Units and the Pre-Funded Warrants in respect of those securities) in respect of the transactions contemplated by the Business Combination, a number of Quantum Space Common Units and shares of New Quantum Space Class A Common Stock equal, in the aggregate, to the quotient of (a) $600,000,000, divided by (b) the per-share redemption price applicable to an Inflection Point Class A Share elected to be redeemed, as calculated in accordance with the Investment Management Trust Agreement dated as of March 26, 2026, by and between Inflection Point and Continental Stock Transfer & Trust Company, and Inflection Point’s amended and restated memorandum and articles of association. For the avoidance of doubt, the paired non-economic voting shares of Class B-1 common stock of PubCo (the “New Quantum Space Class B-1 Common Stock”) and Class B-2 common stock of PubCo (the “New Quantum Space Class B-2 Common Stock”) purchased by Up-C Sellers (as defined in the Business Combination Agreement) shall not constitute Aggregate Consideration.

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The consideration to be paid in, or in connection with, the Business Combination to each holder of a Pre-Funded Preferred Unit (the “Pre-Funded Preferred Unit Consideration”) shall be a number of shares of PubCo’s 12.0% Series A Cumulative Convertible Preferred Stock, par value $0.0001 per share (“Series A Preferred Stock”) equal to the quotient of (i) the aggregate Series B preference amount of such holder’s Pre-Funded Preferred Units, divided by (ii) $12.00, as may be adjusted pursuant to the terms and conditions of such Pre-Funded Preferred Units (with respect to the Pre-Funded Preferred Units sold pursuant to the Pre-Funded SPAs).

Each Pre-Funded Investor that elects to do so will contribute its Pre-Funded Warrant(s) to PubCo in exchange for warrants to purchase a number of shares of New Quantum Space Common Stock (“New Quantum Space Series A Warrants”).

Immediately prior to the Closing, Quantum Space will effectuate a recapitalization (the “Recapitalization”), pursuant to which, among other things, all outstanding equity securities of Quantum Space, other than the Pre-Funded Preferred Units and the Pre-Funded Warrant issued to the Pre-Funded Investors in the Pre-Funded Investment, will be converted or exchanged into common units of Quantum Space (the “Quantum Space Common Units”), as set forth in the Seventh Amended and Restated Limited Liability Company Operating Agreement of Quantum Space, the result of which, among other things, will be that the Sellers (as defined in the Business Combination Agreement) will collectively hold Quantum Space Common Units as of immediately prior to the Closing.

Upon the terms and subject to the satisfaction or waiver of the conditions of the Business Combination Agreement, at the Effective Time:

(1)    each Seller (as defined in the Business Combination Agreement) will contribute, assign, transfer, convey and deliver to PubCo all or a portion of such Seller’s Quantum Space Common Units (as set forth in the Exchange Schedule (as defined in the Business Combination Agreement)), in exchange for shares of New Quantum Space Class A-1 Common Stock or Class A-2 common stock of PubCo (the “New Quantum Space Class A-2 Common Stock”), as applicable, on a one-for-one basis (the “Seller Contributions”). Each Seller identified as a “Direct PubCo Seller” will contribute all of its Quantum Space Common Units to PubCo, while each Seller identified as an “Up-C Seller” will contribute only the scheduled portion of its Quantum Space Common Units and retain the balance;

(2)    simultaneously with the Seller Contributions, each Pre-Funded Investor will contribute all of such holder’s Pre-Funded Preferred Units to PubCo in exchange for the Pre-Funded Preferred Unit Consideration (the “Preferred Contributions”);

(3)    simultaneously with the Seller Contributions and the Preferred Contributions, each Pre-Funded Investor that elects to do so will contribute its Pre-Funded Warrant(s) to PubCo in exchange for New Quantum Space Series A Warrants (the “Warrant Contributions”); and

(4)    simultaneously with, or immediately following, the Seller Contributions, the Preferred Contributions and the Warrant Contributions, each Closing PIPE Investor (as defined below) will purchase, and PubCo will issue and sell to such Closing PIPE Investor, Series A Preferred Stock and New Quantum Space Series A Warrants subscribed for by such PIPE Investor in accordance with the applicable Series A SPA (as defined below) (the “Closing PIPE Investment”).

This proxy statement/prospectus covers (A) 106,680,270 shares of New Quantum Space Class A-1 Common Stock that are to be issued or may be issuable (including (i) up to 33,733,333 shares of New Quantum Space Class A-1 Common Stock upon the conversion of Post-Domestication Inflection Point Common Stock (ii) up to 27,942,248 shares of New Quantum Space Class A-1 Common Stock as consideration for the Seller Contributions, (iii) up to 15,833,333 shares of New Quantum Space Class A-1 Common Stock issuable upon exercise of the New Quantum Space Warrants, (iv) up to 15,053,711 shares of New Quantum Space Class A-1 Common Stock issuable upon the conversion of shares of Series A Preferred Stock issued as consideration in the Business Combination to the holders of Pre-Funded Preferred Units (assuming, solely for this purpose, a $5.00 conversion price and taking into account accrued payment-in-kind dividends on the Pre-Funded Preferred Units through December 31, 2026, which amount represents a good-faith estimate of the maximum amount of shares of New Quantum Space Class A-1 Common Stock that may become issuable upon conversion of such shares of Series A Preferred Stock) and (v) up to 14,117,645 shares of New Quantum Space Class A-1 Common Stock issuable upon the exercise of New Quantum Space Series A Warrants issued as consideration in the Business Combination to the holders of Pre-Funded Warrants (assuming, solely for this purpose, a $5.00 exercise price, which amount represents a good-faith estimate of the maximum amount of shares of New Quantum Space Class A-1 Common Stock that may become issuable upon exercise of such New Quantum Space Series A Warrants, (B) up to 6,272,380 shares of Series A Preferred Stock to be issued as consideration in the Pre-Funded Investment to the

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holders of Pre-Funded Preferred Units (taking into account accrued payment-in-kind dividends through December 31, 2026), (C) New Quantum Space Series A Warrants initially exercisable for up to 5,882,352 shares of New Quantum Space Class A-1 Common Stock to be issued as consideration in the Business Combination to the holders of Pre-Funded Warrants, (D) 15,833,333 New Quantum Space Warrants upon the conversion of Post-Domestication Warrants and (E) 15,833,333 shares of New Quantum Space Class A-1 Common Stock issuable upon exercise of the New Quantum Space Warrants. This proxy statement/prospectus also covers (i) up to 33,733,333 shares of Post-Domestication Inflection Point Common Stock that will be issued in the Domestication upon conversion of an equal number of Inflection Point Ordinary Shares, (ii) 15,833,333 Post-Domestication Inflection Point Warrants that will be issued in the Domestication upon conversion of an equal number of Inflection Point Warrants, and (iii) 15,833,333 shares of Post-Domestication Inflection Point issuable upon exercise of the 15,833,333 Post-Domestication Inflection Point Warrants that will be issued in the Domestication upon conversion of an equal number of Inflection Point Warrants. The securities of Post-Domestication Inflection Point to be issued in the Domestication will be issued as an intermediate and transitory step in the Business Combination.

The obligations of Inflection Point and Quantum Space to consummate the Business Combination are subject to the satisfaction or waiver of certain customary closing conditions, including without limitation the following mutual conditions applicable to each Party: (i) each Required Regulatory Approval (as defined in the Business Combination Agreement) shall have been obtained, made or completed and shall be in full force and effect, and any applicable waiting period (and any extension thereof) under any applicable antitrust law or any foreign-investment-review, national-security, export controls and sanctions, or sensitive-technology authority shall have expired or been terminated; (ii) the adoption and/or approval, as applicable, by Inflection Point’s shareholders of the Purchaser Shareholder Approvals (as defined in the Business Combination Agreement, “Inflection Point Shareholder Approval”); (iii) no adverse law or order then in effect prevents or prohibits consummation of the Business Combination; (iv) the Registration Statement becoming effective under the Securities Act of 1933, as amended (the “Securities Act”), and remaining effective as of the Closing, with no stop order or similar order suspending its effectiveness; (v) approval of the listing of the New Quantum Space Class A-1 Common Stock on NYSE, subject to certain conditions and exceptions as described in the Business Combination Agreement; and (vi) the Amended and Restated Certificate of Incorporation of PubCo shall have been duly filed with the Secretary of State of the State of Delaware and the PubCo Bylaws (as defined in the Business Combination Agreement) shall have been duly adopted, in each case in full force and effect as of the Closing.

Following the Closing, the New Quantum Space Class A-1 Common Stock and the New Quantum Space Warrants are intended to be listed, subject to NYSE approval, under the proposed symbols “QSPC” and “QSPCW,” respectively. Pursuant to the terms of the Business Combination Agreement, as a closing condition, the New Quantum Space Class A-1 Common Stock issued as consideration in the Business Combination must be conditionally approved for listing on NYSE subject to any requirement to have a sufficient number of round lot holders of the New Quantum Space Class A-1 Common Stock, but there can be no assurance that such listing condition will be met. If such listing condition is not met, the Business Combination will not be consummated unless the listing condition is waived by the parties to the Business Combination Agreement. It is important for you to know that, at the time of Inflection Point’s extraordinary general meeting, the parties may not have received from NYSE either confirmation of the listing of the New Quantum Space Class A-1 Common Stock or that approval will be obtained prior to the consummation of the Business Combination, and it is possible that the listing condition to the consummation of the Business Combination may be waived by the parties to the Business Combination Agreement. As a result, you may be asked to vote to approve the Business Combination and the other proposals included in this proxy statement/prospectus without such confirmation, and, further, it is possible that such confirmation may never be received and the Business Combination could still be consummated if such condition is waived or is subject to an exception and therefore the New Quantum Space Class A-1 Common Stock would not be listed on any nationally recognized securities exchange. The Inflection Point Units, Inflection Point Class A Shares and Inflection Point Warrants (collectively, the “Public Securities”) are currently listed on the Nasdaq Stock Market LLC (“Nasdaq”) under the symbols “IPFXU,” “IPFX” and “IPFXW,” respectively.

In connection with Inflection Point’s initial public offering consummated on March 30, 2026 (the “IPO”), the Sponsor, and Inflection Point’s directors and executive officers entered into a letter agreement to vote their Inflection Point Ordinary Shares in favor of the Business Combination Proposal (as defined herein). Further, concurrently with the execution of the Business Combination Agreement, the Sponsor entered into the Sponsor Support Agreement, pursuant to which the Sponsor agreed to vote their shares in favor of all proposals being presented at the extraordinary general meeting. As of the Record Date, the Sponsor owned approximately 25.0% of the total outstanding Inflection Point Ordinary Shares.

There are no agreements, arrangements, or understandings between the Sponsor and Inflection Point, its officers, directors, or affiliates with respect to determining whether to proceed with the Business Combination or any other initial business combination.

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Material Financing Transactions

Simultaneously with the consummation of the IPO, the Sponsor purchased 5,000,000 Inflection Point Warrants (the “Private Placement Warrants”) in a private placement, at a price of $1.00 per warrant, generating total proceeds of $5,000,000.

Since the IPO, there has not been any material financing of Inflection Point. However, if necessary, in order to fund working capital deficiencies or finance transaction costs in connection with the Business Combination, the Sponsor, or certain of Inflection Point’s officers and directors or their affiliates, may, but are not obligated to, loan funds to Inflection Point as may be required. If Inflection Point completes the Business Combination or another initial business combination, it would repay such loaned amounts. In the event that the Business Combination or another initial business combination does not close, Inflection Point may use a portion of the working capital held outside the Trust Account to repay such loaned amounts but no proceeds from the Trust Account would be used for such repayment. Up to $1,500,000 of such working capital loans may be convertible into additional Private Placement Warrants at a price of $1.00 per warrant at the option of the lender. As of October 21, 2026, the most recent practicable date prior to the date of this proxy statement/prospectus, no working capital loans have been made to Inflection Point.

In connection with the transactions contemplated by the Business Combination Agreement, on the Signing Date, PubCo, Quantum Space and certain accredited investors named therein (the “Closing PIPE Investors”) entered into Securities Purchase Agreements (the “Series A SPAs”). Pursuant to the Series A SPAs, the Closing PIPE Investors agreed, among other things, to purchase, at Closing, an aggregate of (i) 19,999,994 shares of Series A Preferred Stock, having the rights, preferences and privileges set forth in the Certificate of Designation of Preferences, Rights and Limitations of 12.0% Series A Cumulative Convertible Preferred Stock (the “Certificate of Designation”) and (ii) New Quantum Space Series A Warrants to purchase an aggregate of 19,999,994 shares of New Quantum Space Class A-1 Common Stock, for an aggregate purchase price of $240 million (the “Closing PIPE Investment”). Each share of Series A Preferred Stock will have a stated value of $12.00 (the “Stated Value”).

Compensation of the Sponsor and its Affiliates

Set forth below is a summary of the amount of compensation and securities received, to be received or that may be received by the Sponsor, its affiliates and Inflection Point’s directors, officers and their affiliates in connection with the Business Combination and related transactions. All of Inflection Point’s officers and directors, in addition to certain third-party investors, are members of the Sponsor and therefore have an indirect interest in the amount of compensation received by and securities issued to the Sponsor, and in the consideration paid or to be paid by the Sponsor, in connection with the Business Combination or any related financing transaction.

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See “Questions and Answers — What is the effective purchase price attributed to the New Quantum Space Common Stock to be received by the Public Shareholders, the Sponsor, and the Quantum Space stockholders at Closing?”

As of the date of this proxy statement/prospectus, no compensation of any kind, including finder’s and consulting fees, have been paid to the Sponsor, Inflection Point Fund, members of our management team, or any of their affiliates, for services rendered prior to or in connection with the completion of the Business Combination. However, Inflection Point may pay consulting, success or finder fees to these entities or individuals, or their respective affiliates in connection with the consummation of the Business Combination, and Inflection Point may engage the Sponsor or an affiliate of the Sponsor as an advisor or otherwise in connection with the Business Combination and certain other transactions and pay such person or entity a salary or fee in an amount that constitutes a market standard for comparable transactions. Except as set out in the immediately preceding sentence, as of the date of this proxy statement/prospectus, no terms for any such arrangements have been determined and no written agreements exist with respect to such arrangements. Additionally, these entities or individuals may be reimbursed for out-of-pocket expenses incurred in connection with activities on our behalf such as identifying potential target businesses and performing due diligence on suitable business combinations. As of the date of this proxy statement/prospectus, there are no out-of-pocket expenses to be reimbursed. The reimbursement of expenses and advances and the securities issued to the Sponsor and Inflection Point Fund may result in a material dilution of the equity interests of non-redeeming Public Shareholders. See “Summary of the Proxy Statement/Prospectus — Dilution,” “The Business Combination Proposal — Interests of Certain Inflection Point Persons in the Business Combination” and “Information About Inflection Point — Executive and Director Compensation.”

Up-C Structure and Tax Receivable Agreement

Following the Closing, the combined company will be organized in an umbrella partnership C corporation (“Up-C”) structure, in which substantially all of the assets and the business of the combined company will be held by Quantum Space OpCo and its subsidiaries. New Quantum Space will have no material assets other than its indirect ownership of Quantum Space Common Units and Company Preferred Units held through Post-Domestication Inflection Point. The Up-C structure was selected to permit certain pre-Closing equityholders of Quantum Space to retain a direct ownership interest in Quantum Space OpCo (in the form of Quantum Space Common Units paired with non-economic voting shares of New Quantum Space) and to facilitate tax-efficient structuring, including the potential for step-up in tax basis of Quantum Space OpCo’s assets upon future exchanges of Quantum Space Common Units for shares of New Quantum Space Class A Common Stock.

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The sole Up-C Seller is an entity (or entities) affiliated with Dr. Kam Ghaffarian, Executive Chairman and Co-Founder of Quantum Space, who, together with his affiliated entities, is expected to beneficially own more than 50% of New Quantum Space Common Stock and to be the controlling stockholder of New Quantum Space following the Closing. As an Up-C Seller, such entity (or entities) will retain a direct ownership interest in Quantum Space OpCo consisting of Quantum Space Common Units paired with shares of New Quantum Space Class B-2 Common Stock, which carry ten votes per share. Each Quantum Space Common Unit, when paired with one share of New Quantum Space Class B-2 Common Stock, is exchangeable, in tandem with the cancellation of the paired share of New Quantum Space Class B-2 Common Stock, for one share of New Quantum Space Class A-2 Common Stock on a one-for-one basis, or, at New Quantum Space’s election, for cash, subject to the terms and conditions of the A&R Operating Agreement. Post-Domestication Inflection Point, which will be a wholly owned subsidiary of New Quantum Space, will serve as the sole managing member of Quantum Space OpCo following the Closing.

At the Closing, New Quantum Space, Quantum Space OpCo and each Participating TRA Holder will enter into the Tax Receivable Agreement, pursuant to which New Quantum Space will be obligated to pay the Participating TRA Holders 85% of the net cash tax savings, if any, that New Quantum Space realizes as a result of certain covered tax assets, including existing tax basis in certain assets of Quantum Space OpCo, tax basis adjustments resulting from future exchanges of Quantum Space Common Units for shares of New Quantum Space Class A Common Stock, and certain other tax benefits related to entering into the Tax Receivable Agreement and making payments thereunder. Payments under the Tax Receivable Agreement are expected to be substantial and are not conditioned upon the Participating TRA Holders’ continued ownership interest in New Quantum Space or Quantum Space OpCo. The obligation to make payments may also be accelerated and become immediately due and payable if New Quantum Space exercises its right to terminate the Tax Receivable Agreement. Such payments will reduce the amount of cash available to New Quantum Space and may have an adverse impact on New Quantum Space’s liquidity and ability to pay operating expenses and other obligations, including debt and taxes. As of the Closing, the sole Participating TRA Holder will be an entity (or entities) affiliated with Dr. Ghaffarian. To the extent that any Incentive Units held by Dr. Ghaffarian convert to Quantum Space Common Units in connection with the Founder Incentive Arrangement, Dr. Ghaffarian will become a Participating TRA Holder with respect to such Common Units. See “Risk Factors — Risks Relating to New Quantum Space’s Organizational Structure,” “The Business Combination Proposal — Related Agreements — Tax Receivable Agreement” and “Executive and Director Compensation of Quantum Space — Interests of Quantum Space’s Directors and Executive Officers in the Business Combination — Founder Incentive Arrangement” for additional information.

The Up-C structure allows the sole Up-C Seller, an entity (or entities) affiliated with Dr. Kam Ghaffarian, who is expected to be the controlling stockholder of New Quantum Space following the Closing, to retain a portion of its equity ownership in Quantum Space OpCo, an entity that is classified as a partnership for U.S. federal income tax purposes, in the form of retained Quantum Space Common Units. As a result, future taxable income of Quantum Space OpCo that is allocated to the sole Up-C Seller will be taxed on a flow-through basis and therefore will generally not be subject to corporate U.S. federal income taxes at the entity level. In contrast, Post-Domestication Inflection Point (which will join in New Quantum Space’s filing of consolidated U.S. federal income tax returns) will be subject to U.S. federal, state and local corporate income tax on its allocable share of Quantum Space OpCo’s taxable income. Quantum Space OpCo is also expected to make cash distributions to its members, including the sole Up-C Seller, in amounts at least sufficient to cover taxes on their allocable shares of its net taxable income (see “Risk Factors — Risks Relating to New Quantum Space’s Organizational Structure”). Additionally, because the sole Up-C Seller may exchange its retained Quantum Space Common Units, together with an equal number of shares of New Quantum Space Class B-2 Common Stock (which will be cancelled), for shares of New Quantum Space Class A Common Stock on a one-for-one basis or, at New Quantum Space’s election, for cash (in each case subject to the terms and conditions of the A&R Operating Agreement, including applicable lock-up periods), the Up-C structure also provides the sole Up-C Seller with potential liquidity that holders of nonpublicly traded limited liability companies are not typically afforded.

New Quantum Space’s acquisition of Quantum Space Common Units pursuant to any such exchange is expected to result in adjustments to the tax basis of certain tangible and intangible assets of Quantum Space OpCo, and such adjustments will generally be allocated to New Quantum Space. These adjustments would not have been available to New Quantum Space absent its acquisition of Quantum Space Common Units and are expected to reduce the amount of taxes that New Quantum Space would otherwise be required to pay in the future. Under the Tax Receivable Agreement, New Quantum Space will be required to pay the sole Participating TRA Holder, an entity (or entities) affiliated with Dr. Ghaffarian, 85% of such cash tax savings, if any, that we actually realize or in certain circumstances are deemed to realize (calculated using certain assumptions). Assuming no material changes in the relevant tax law and that New Quantum Space earns sufficient taxable income to realize all tax benefits that are subject to the Tax Receivable Agreement, New Quantum

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Space expects that such tax savings would aggregate to approximately $84.0 million over 15 years from the date of the Business Combination, based on a $10.00 per share trading price of New Quantum Space Class A Common Stock, and assuming all future redemptions or exchanges would occur after the consummation of the Business Combination at the same assumed price per share. Under such scenario, subject to certain assumptions, New Quantum Space would be required to pay approximately 85% of such amount, or approximately $71.4 million, over such 15-year period. If New Quantum Space were to elect to terminate the Tax Receivable Agreement immediately after the Business Combination, assuming the market value of New Quantum Space Class A Common Stock is equal to $10.07 per share, it is currently estimated that New Quantum Space would be required to make an accelerated payment of approximately $52.0 million, which payment may be made significantly in advance of, and may materially exceed, the actual realization, if any, of the future tax benefits to which the payment relates.

Payments under the Tax Receivable Agreement are obligations of New Quantum Space and not of Quantum Space OpCo, are not conditioned on the sole Participating TRA Holder’s continued ownership of Quantum Space Common Units or New Quantum Space securities, and will continue until all covered tax benefits have been utilized or have expired. New Quantum Space may elect to terminate the Tax Receivable Agreement early, in which case it would be required to make an immediate payment equal to the present value (discounted at SOFR plus 100 basis points) of all projected future payments, calculated using certain assumptions, including an assumption that New Quantum Space will have sufficient taxable income to fully use all of the covered tax benefits. In addition, upon a change of control or a material breach by New Quantum Space of its material obligations, future payments would be calculated using similar assumptions rather than on the basis of actual cash tax savings. As a result, New Quantum Space could be required to make payments that are significantly in advance of, and that materially exceed, the actual tax benefits it realizes, including payments in excess of 85% of its actual cash tax savings, which could have a substantial negative effect on its liquidity and could have the effect of deferring or preventing certain mergers, asset sales or other changes of control. Because the sole Participating TRA Holder is affiliated with Dr. Ghaffarian, who is expected to control New Quantum Space following the Closing, Dr. Ghaffarian will have significant influence over decisions that affect the timing and amount of payments under the Tax Receivable Agreement, including whether and when to terminate it, and his interests in those decisions may conflict with those of New Quantum Space’s other stockholders. See “Risk Factors — Risks Relating to New Quantum Space’s Organizational Structure.”

Participating TRA Holders may have conflicting interests with holders of shares of New Quantum Space Class A Common Stock because of their interest in the Tax Receivable Agreement as well as the fact that they hold their economic interest in the business through Quantum Space OpCo, rather than through New Quantum Space. For example, the Participating TRA Holders may have a different tax position from New Quantum Space, which could influence their decisions regarding whether and when New Quantum Space should dispose of assets or incur new or refinance existing indebtedness, especially in light of the existence of the Tax Receivable Agreement, and whether and when New Quantum Space should undergo certain changes of control within the meaning of the Tax Receivable Agreement or terminate the Tax Receivable Agreement. In addition, the ten-to-one voting disparity between Class A-2/Class B-2 Common Stock and Class A-1/Class B-1 Common Stock results in the Up-C Sellers having voting power that is disproportionately greater than their economic interest. See “Risk Factors — Risks Relating to New Quantum Space’s Organizational Structure” for a discussion of the risks associated with the Up-C structure and Tax Receivable Agreement.

Potential conflicts of interest in connection with the Business Combination

There may be actual or potential material conflicts of interest between or among (i) the Sponsor, Inflection Point Fund, Inflection Point’s officers and directors, Quantum Space’s officers and directors and (ii) unaffiliated security holders of Inflection Point. Such conflicts of interest may include a material conflict of interest arising in determining whether to proceed with the Business Combination, the compensation of Inflection Point’s directors and officers and the compensation of the Sponsor and Inflection Point in connection with the Business Combination. See the section entitled “The Business Combination Proposal — Interests of Certain Inflection Point Persons in the Business Combination.” Quantum Space’s directors and executive officers have interests in the Business Combination that are different from, or in addition to, and may conflict with, the interests of unaffiliated security holders of Inflection Point. These interests include their ownership of Quantum Space Incentive Units and other Quantum Space equity interests that will be converted or exchanged into Quantum Space Common Units in the Recapitalization, the fact that each of the sole Up-C Seller and the sole Participating TRA Holder is an entity (or entities) affiliated with Dr. Kam Ghaffarian, who will be the controlling stockholder of New Quantum Space following the Closing, and who will therefore benefit from the Up-C structure and from payments under the Tax Receivable Agreement, the post-Closing founder incentive arrangement to be established in connection with the Closing for Dr. Kam Ghaffarian and other members of Quantum

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Space’s executive management, and the expected continuation of Jim Bridenstine as Chief Executive Officer and a director, Adarsh Parekh as Chief Financial Officer and Treasurer, and Dr. Ghaffarian as Executive Chairman and a director of New Quantum Space, together with the compensation and equity award opportunities associated with those positions. Because these benefits are contingent upon, or would be enhanced by, the completion of the Business Combination, they may create an incentive for Quantum Space’s officers and directors to support and complete the Business Combination even in circumstances in which unaffiliated security holders of Inflection Point might prefer to redeem their Public Shares, to pursue a different transaction or not to complete a business combination at all. In addition to the interests described above, Quantum Space’s directors and executive officers have other specific interests in the Business Combination that are different from, or in addition to, and may conflict with, the interests of unaffiliated security holders of Inflection Point as described in the section entitled “Executive and Director Compensation of Quantum Space — Interests of Quantum Space’s Directors and Executive Officers in the Business Combination.”

Extraordinary General Meeting

Inflection Point will hold an extraordinary general meeting (the “extraordinary general meeting”) to consider matters relating to the Business Combination and vote on the Transaction Proposals at [•], Eastern Time, on [•], 2026. For the purposes of the Cayman Constitutional Documents, the physical location of the extraordinary general meeting will be at the offices of White & Case LLP at 1221 Avenue of the Americas, New York, New York 10020. You or your proxyholder will be able to attend and vote at the extraordinary general meeting online by visiting https://www.cstproxy.com/inflectionpointacquisitionVI/2026 and using a control number assigned by Continental Stock Transfer & Trust Company. To register and receive access to the extraordinary general meeting, registered shareholders and beneficial shareholders (those holding shares through a stock brokerage account or by a bank or other holder of record) will need to follow the instructions applicable to them provided in the accompanying proxy statement/prospectus.

After careful consideration, the Inflection Point Board unanimously approved the Business Combination Agreement and the proposals described in this proxy statement/prospectus. The Inflection Point Board has also determined that it is in the best interests of Inflection Point to complete the Business Combination. The Inflection Point Board and Audit Committee took into account the oral opinion of Newbridge Securities Corporation (“Newbridge”) (subsequently confirmed in writing), rendered on June 5, 2026, to the effect that, as of such date and based on and subject to various assumptions and limitations described in its written opinion, that (i) the Aggregate Consideration to be paid by Inflection Point pursuant to the Business Combination is fair, from a financial point of view as of such date, to the Inflection Point Unaffiliated Shareholders (defined as Inflection Point shareholders other than (a) the Sponsor, (b) Inflection Point Fund, (c) officers, directors or affiliates of Inflection Point, the Sponsor or Inflection Point Fund, and (d) Public Shareholders who elect to redeem their shares prior to or in connection with the Business Combination), and (ii) the Business Combination has an aggregate fair market value of at least eighty percent (80.0%) of the value of the assets held in the Trust Account for the benefit of the Public Shareholders (excluding any deferred underwriters fees and taxes payable on the income earned on the Trust Account) at the time of the Business Combination Agreement. For more information, see “Proposal No. 1 — The Business Combination Proposal — Background of the Business Combination,” and “Proposal No. 1 — The Business Combination Proposal — Opinion of Newbridge Securities.” The Inflection Point Board recommends that you vote “FOR” each proposal described in this proxy statement/prospectus.

If you have any questions or need assistance voting your Inflection Point Ordinary Shares, please contact Alliance Advisors, LLC, our proxy solicitor, by calling 1-855-206-2037, or by emailing [email protected]. The notice of the extraordinary general meeting and the proxy statement/prospectus relating to the Business Combination will be available at https://www.cstproxy.com/inflectionpointacquisitionVI/2026.

This proxy statement/prospectus provides shareholders of Inflection Point with detailed information about the Business Combination and other matters to be considered at the extraordinary general meeting of Inflection Point. We encourage you to read this entire document, including the Annexes and other documents referred to herein, carefully and in their entirety. It also contains or references information about Inflection Point, Quantum Space and New Quantum Space and certain related matters. You are encouraged to read this proxy statement/prospectus carefully. In particular, when you consider the recommendation regarding these proposals by Inflection Point Board, you should keep in mind that the Sponsor, Inflection Point Fund and Inflection Point’s directors and officers have interests in the Business Combination that are different from or in addition to, or may conflict with, your interests as a shareholder. For instance, the Sponsor, the Inflection Point Fund and Inflection Point’s officers and directors will benefit from the completion of a business combination and

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may be incentivized to complete an acquisition of a less favorable target company or on terms less favorable to shareholders rather than liquidating Inflection Point. See the section entitled “The Business Combination Proposal — Certain Interests of Inflection Point’s Directors and Officers and Others in the Business Combination” for a further discussion of these considerations. Quantum Space’s directors and executive officers also have interests in the Business Combination that are different from, or in addition to, and may conflict with, the interests of unaffiliated security holders of Inflection Point, as described in the section entitled “Interests of Quantum Space’s Directors and Executive Officers in the Business Combination.” You should also carefully consider the risk factors described under the heading “Risk Factors” beginning on page 36 of the accompanying proxy statement/prospectus.

Immediately following the Closing, New Quantum Space will be a “controlled company” within the meaning of the NYSE listing rules. Dr. Ghaffarian is expected to have voting power over 316,393 shares of New Quantum Space Class A-2 Common Stock and 31,322,858 shares of New Quantum Space Class B-2 Common Stock, each of which is entitled to ten votes per share, through his holdings in Quantum Space Holdings, LLC, Quantum Space KG Parent, LLC and IBX Opportunity GP, Inc. As a result, Dr. Ghaffarian is expected to control approximately 78.3% of New Quantum Space’s total voting power immediately following the Closing in the No Redemption Scenario, 80.8% in the 50% Redemption Scenario and 83.5% in the Maximum Redemption Scenario. The foregoing share amounts and percentages do not reflect the additional voting power that Dr. Ghaffarian may obtain if the 4,500,000 Incentive Units to be issued under the Founder Incentive Arrangement vest and convert into Quantum Space Common Units, which would be paired with shares of Class B-2 Common Stock (or, upon exchange, Class A-2 Common Stock). New Quantum Space does not currently intend to rely on the exemptions from certain NYSE corporate governance requirements available to controlled companies. See “Risk Factors — Risks Related to New Quantum Space’s Securities Following the Business Combination — Following the Business Combination, New Quantum Space will be a “controlled company” within the meaning of the NYSE Listing Rules and, as a result, will qualify for, and may rely on, exemptions from certain corporate governance requirements,” “Management of the Company Following the Business Combination — Controlled Company Status,” “Beneficial Ownership of Securities,” and “Executive and Director Compensation of Quantum Space — Interests of Quantum Space’s Directors and Executive Officers in the Business Combination — Founder Incentive Arrangement”

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES REGULATORY AGENCY HAS APPROVED OR DISAPPROVED THE TRANSACTIONS DESCRIBED IN THE ACCOMPANYING PROXY STATEMENT/PROSPECTUS, PASSED UPON THE MERITS OR FAIRNESS OF THE BUSINESS COMBINATION OR PASSED UPON THE ADEQUACY OR ACCURACY OF THE DISCLOSURE IN THE ACCOMPANYING PROXY STATEMENT/PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY CONSTITUTES A CRIMINAL OFFENSE.

The accompanying proxy statement/prospectus is dated [•], 2026 and is first being mailed to Inflection Point’s shareholders on or about [•], 2026.

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PRELIMINARY PROXY STATEMENT/PROSPECTUS
SUBJECT TO COMPLETION, DATED OCTOBER 22, 2026

INFLECTION POINT ACQUISITION CORP. VI
A Cayman Islands Exempted Company
(Company No. 425717)
1680 Michigan Avenue Suite 700 #1031
Miami Beach, FL 33139

NOTICE OF EXTRAORDINARY GENERAL MEETING TO BE HELD ON [•], 2026

TO THE SHAREHOLDERS OF INFLECTION POINT ACQUISITION CORP. VI:

You are cordially invited to attend the extraordinary general meeting of Inflection Point Acquisition Corp. VI, a Cayman Islands exempted company (“Inflection Point”), to be held at [•], Eastern Time, on [•], 2026, at the offices of White & Case LLP located at 1221 Avenue of the Americas, New York, NY 10020, and virtually via live webcast at https://www.cstproxy.com/inflectionpointacquisitionVI/2026. The extraordinary general meeting will be held for the following purposes:

Proposal No. 1 — The Business Combination Proposal — To consider and vote upon a proposal to approve, subject to the approval of the other Condition Precedent Proposals, by ordinary resolution, the Business Combination Agreement, dated as of June 8, 2026, by and among Inflection Point, IPFX PubCo, Inc., a Delaware corporation and direct, wholly owned subsidiary of Inflection Point (“PubCo”), IPFX Merger Sub, Inc., a Delaware corporation and direct, wholly owned subsidiary of PubCo (“Merger Sub”), and Quantum Space, LLC, a Delaware limited liability company (referred to herein prior to the Business Combination, as “Quantum Space” and subsequent to the Business Combination, as “Quantum Space OpCo”) (as amended on October 22, 2026, and as it may be further amended, restated, supplemented or otherwise modified from time to time in accordance with its terms, the “Business Combination Agreement,” and the transactions contemplated thereby, the “Business Combination”), resulting in a combined company whereby Quantum Space OpCo will become a subsidiary of Post-Domestication Inflection Point, in an umbrella partnership C corporation (“Up-C”) structure, in which substantially all of the assets and the business of the combined company will be held by Quantum Space OpCo and its subsidiaries. We refer to this proposal as the “Business Combination Proposal.” A copy of the Business Combination Agreement is attached to the accompanying proxy statement/prospectus as Annex A.

Proposal No. 2 — The Domestication Proposal — To consider and vote upon a proposal to approve, subject to the approval of the other Condition Precedent Proposals, by special resolution of the holders of Class B ordinary shares, par value $0.0001 per share, of Inflection Point (the “Inflection Point Class B Shares,” and the holders of such shares, the “Inflection Point Class B Shareholders”), the domestication of Inflection Point as a Delaware corporation (the “Domestication” and Inflection Point after the Domestication, “Post-Domestication Inflection Point”), which will be accomplished by de-registering Inflection Point from the Register of Companies in the Cayman Islands and transferring by way of continuation out of the Cayman Islands and into the State of Delaware so as to migrate and domesticate as a Delaware corporation in accordance with Article 49.2 of the amended and restated memorandum and articles of association of Inflection Point (as may be amended from time to time, the “Cayman Constitutional Documents”), Section 388 of the Delaware General Corporation Law (the “DGCL”) and Part XII of the Companies Act (Revised) of the Cayman Islands (the “Companies Act”). At least one Business Day prior to the Closing Date and following the Sponsor Share Conversion, Inflection Point will cause the Domestication to become effective, including by (a) filing with the Delaware Secretary of State a certificate of domestication and charter upon Domestication (the “Post-Domestication Charter”), (b) completing, making and procuring all filings required to be made with the Cayman Registrar in connection with the Domestication, and file with the Cayman Registrar all applicable notices, declarations, affidavits, statements of assets and liabilities, shareholder approvals, undertakings and other documents required to be filed, pay all applicable fees required to be paid and cause the satisfaction of all other conditions to deregistration required to be satisfied, in each case, under section 206 of the Cayman Companies Act, (c) obtaining a certificate of de-registration from the Cayman Registrar, and (d) adopting bylaws upon Domestication. Upon the effectiveness of the Domestication, Inflection Point will re-domicile as and become a Delaware corporation and all outstanding securities of Inflection Point prior to the Domestication will convert to outstanding securities of Post-Domestication Inflection Point, as described in more detail in the accompanying proxy statement/prospectus. We refer to this proposal as the “Domestication Proposal.”

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Proposal No. 3 — The Merger Proposal — To consider and vote upon a proposal to approve, subject to the approval of the other Condition Precedent Proposals, by a majority of the shares outstanding, (i) the Merger and (ii) the certificate of merger (the “Certificate of Merger”) to be adopted in connection with the Merger. We refer to this proposal as the “Merger Proposal.”

Proposal No. 4 — The Domesticated Organizational Documents Proposal — To consider and vote upon a proposal to approve, subject to the approval of the other Condition Precedent Proposals, by special resolution of the holders of the Inflection Point Class B Shares pursuant to Article 49.2 of the Cayman Constitutional Documents, the Post-Domestication Charter and the proposed new by-laws (the “Post-Domestication Bylaws” and, together with the Post-Domestication Charter, the “Proposed Domesticated Organizational Documents”) of Post-Domestication Inflection Point in connection with the Domestication. We refer to this proposal as the “Domesticated Organizational Documents Proposal.” The form of each of the Post-Domestication Charter and the Post-Domestication Bylaws is attached to the accompanying proxy statement/prospectus as Annex K and Annex L, respectively.

Proposal No. 5 — The Advisory Organizational Documents Proposals — To consider and vote upon the following eight separate proposals (collectively, the “Advisory Organizational Documents Proposals”) to approve on an advisory, non-binding basis by ordinary resolution the following material differences between the Cayman Constitutional Documents and the proposed certificate of incorporation (the “Proposed Charter”) and the proposed bylaws (the “Proposed Bylaws,” and together with the Proposed Charter, the “Proposed Organizational Documents”) of New Quantum Space to be adopted immediately prior to the Merger which will govern the rights of stockholders of New Quantum Space following the Merger. The form of each of the Proposed Charter and the Proposed Bylaws is attached to the accompanying proxy statement/prospectus as Annex B and Annex C, respectively:

Advisory Organizational Documents Proposal 5A — Under the Proposed Organizational Documents, New Quantum Space would be authorized to issue 750,000,000 shares, consisting of (A) 500,000,000 shares of New Quantum Space Class A-1 Common Stock, (B) 50,000,000 shares of New Quantum Space Class A-2 Common Stock, (C) 50,000,000 shares of New Quantum Space Class B-1 Common Stock, (D) 50,000,000 shares of New Quantum Space Class B-2 Common Stock, and (E) 100,000,000 shares of New Quantum Space Preferred Stock, each with a par value of $0.0001 per share.

Advisory Organizational Documents Proposal 5B — The Proposed Organizational Documents would authorize a multiple class common stock structure pursuant to which the holders of New Quantum Space Class A-1 Common Stock and New Quantum Space Class B-1 Common Stock will be entitled to one vote per share and holders of New Quantum Space Class A-2 Common Stock and New Quantum Space Class B-2 Common Stock will be entitled to ten votes per share.

Advisory Organizational Documents Proposal 5C — The Proposed Organizational Documents would include a provision providing that each outstanding share of New Quantum Space Class A-2 Common Stock and New Quantum Space Class B-2 Common Stock shall automatically convert into one share of New Quantum Space Class A-1 Common Stock or New Quantum Space Class B-1 Common Stock, as applicable, upon the earliest to occur of (i) the date that is seven years from the effectiveness of the Proposed Organizational Documents, (ii) the first date when the High-Vote Holders (as defined in the Proposed Organizational Documents) collectively cease to own at least 33.33% of the number of shares of New Quantum Space Class A-2 Common Stock and New Quantum Space Class B-2 Common Stock collectively held by them as of immediately following the Closing, and (iii) with respect to any individual High-Vote Holder, the date that is twelve (12) months after the death or Permanent Incapacity (as defined in the Proposed Organizational Documents) of such High-Vote Holder (but only with respect to the shares of Class A-2 Common Stock and Class B-2 Common Stock Beneficially Owned (as defined in the Proposed Organizational Documents) by such High-Vote Holder and such High-Vote Holder’s Qualified Transferees (as defined in the Proposed Organizational Documents)).

Advisory Organizational Documents Proposal 5D — The Proposed Organizational Documents would adopt (a) Delaware as the exclusive forum for certain stockholder litigation and (b) the federal district courts of the United States of America as the exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act.

Advisory Organizational Documents Proposal 5E — Subject to certain additional consent rights with respect to holders of Class A-1 Common Stock, Class A-2 Common Stock, Class B-1 Common Stock and Class B-2 Common Stock regarding amendments that would affect their powers, preferences, or special rights, the Proposed Charter would require the affirmative vote of at least two-thirds of the voting power of the then-outstanding shares of New Quantum Space to amend, alter, repeal or rescind any provision of the Proposed Charter. In

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addition, the Proposed Charter would require the affirmative vote of at least a majority of the following classes of holders: (i) the holders of New Quantum Space Class B-1 Common Stock and New Quantum Space Class B-2 Common Stock, (ii) the holders of New Quantum Space Class A-2 Common Stock and New Quantum Space Class B-2 Common Stock, or (iii) the holders of New Quantum Space Class A-1 Common Stock, in each case, to amend, alter, change, repeal or adopt any provision in a manner that adversely affects such class or classes of holders. The Proposed Charter would also permit the New Quantum Space Board to amend, alter, repeal or rescind the Proposed Bylaws without the consent or vote of the stockholders of New Quantum Space. The Proposed Bylaws would permit the stockholders of New Quantum Space to adopt, amend or repeal the Proposed Bylaws by the affirmative vote of the holders of at least two-thirds of the voting power of the outstanding shares of voting stock entitled to vote generally in an election of directors of New Quantum Space, voting together as a single class.

Advisory Organizational Documents Proposal 5F — The Proposed Charter would require the affirmative vote of holders of at least two-thirds of the voting power of the outstanding shares of capital stock entitled to vote generally in the election of directors to remove a director, with or without cause.

Advisory Organizational Documents Proposal 5G — The Proposed Charter would, from and after the date that New Quantum Space ceases to qualify as a controlled company, prohibit stockholder action by written consent in lieu of a meeting and require stockholders to take action at an annual or special meeting, provided that any action required or permitted to be taken by the holders of (x) any series of New Quantum Space Preferred Stock or (y) New Quantum Space Class A-2 Common Stock, New Quantum Space Class B-1 Common Stock or New Quantum Space Class B-2 Common Stock may be taken without a meeting if signed by the holders of the relevant series of New Quantum Space Preferred Stock or class of New Quantum Space Common Stock, as applicable, having not less than the minimum number of votes necessary to authorize such action at a meeting at which all shares entitled to vote thereon were present and voted in compliance with the DGCL.

Advisory Organizational Documents Proposal 5H — The Proposed Charter would (1) change the corporate name from “IPFX PubCo, Inc.” to “Quantum Space, Inc.”, (2) make New Quantum Space’s corporate existence perpetual and (3) remove certain provisions related to Inflection Point’s status as a blank check company that will no longer be applicable upon consummation of the Business Combination.

Proposal No. 6 — The Director Election Proposal — To consider and vote upon a proposal to approve, subject to the approval of the other Condition Precedent Proposals, by ordinary resolution, the election of four directors to serve on the New Quantum Space board of directors until the first annual meeting of stockholders of New Quantum Space to be held following the date of Closing and until any such director’s successor is elected and qualified, subject to such director’s earlier death, disqualification, resignation, or removal. We refer to this proposal as the “Director Election Proposal.”

Proposal No. 7 — New Quantum Space Incentive Plan Proposal — To consider and vote upon a proposal, subject to the approval of the other Condition Precedent Proposals, by ordinary resolution, that the Quantum Space, Inc. 2026 Equity Incentive Plan (the “New Quantum Space Incentive Plan”), a copy of which is attached to the proxy statement/prospectus as Annex G, be adopted and approved. We refer to this proposal as the “New Quantum Space Incentive Plan Proposal.”

Proposal No. 8 — New Quantum Space Employee Stock Purchase Plan Proposal — To consider and vote upon a proposal, subject to the approval of the other Condition Precedent Proposals, by ordinary resolution, that the Quantum Space, Inc. 2026 Employee Stock Purchase Plan (the “ESPP”), a copy of which is attached to the proxy statement/prospectus as Annex H, be adopted and approved.

Proposal No. 9 — The Adjournment Proposal — To consider and vote upon a proposal to approve, by ordinary resolution, the adjournment of the extraordinary general meeting to a later date or dates, if necessary or convenient, (i) to permit further solicitation and vote of proxies in the event that there are insufficient votes for, or otherwise in connection with the approval of one or more proposals at the extraordinary general meeting, (ii) if Inflection Point determines that one or more of the conditions to Closing is not or will not be satisfied or waived or (iii) to facilitate the Domestication, the Merger or any other transaction contemplated by the Business Combination Agreement or the related agreements. We refer to this proposal as the “Adjournment Proposal.”

These items of business are described in the accompanying proxy statement/prospectus, which we encourage you to read carefully and in its entirety before voting.

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Only holders of record of Class A ordinary shares, par value $0.0001 per share, of Inflection Point (the “Inflection Point Class A Shares”) and the Inflection Point Class B Shares (together with the Inflection Point Class A Shares, the “Inflection Point Ordinary Shares”) at the close of business on [•], 2026 (the “Record Date”), are entitled to notice of and to have their votes counted at the extraordinary general meeting and any adjournment of the extraordinary general meeting. Pursuant to the Cayman Constitutional Documents, the approval of the Domestication Proposal requires a special resolution of the Inflection Point Class B Shareholders, being the affirmative vote of holders of at least two-thirds of the Inflection Point Class B Shares, who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting. The Inflection Point Class A Shareholders will have no right to vote on the Domestication Proposal, in accordance with Article 49.2 of the Cayman Constitutional Documents.

The approval of the Domesticated Organizational Documents Proposal requires a special resolution of the Inflection Point Class B Shareholders, being the affirmative vote of holders of at least two-thirds of the Inflection Point Class B Shares who being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting. The Inflection Point Class A Shareholders will have no right to vote on the Domesticated Organizational Documents Proposal, in accordance with Article 49.2 of the Cayman Constitutional Documents. The separate approval of each of the Advisory Organizational Documents Proposals, each of which is a non-binding vote, requires an ordinary resolution of the holders of the Inflection Point Ordinary Shares who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

The approval of each of the Business Combination Proposal, the Director Election Proposal, the New Quantum Space Incentive Plan Proposal, the New Quantum Space Employee Stock Purchase Plan Proposal and the Adjournment Proposal requires an ordinary resolution, being the affirmative vote of the holders of a simple majority of the Inflection Point Ordinary Shares, who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting. The Business Combination was not structured to require the approval of at least a majority of Inflection Point’s unaffiliated shareholders because such a vote is not required under Cayman Islands law.

The approval of the Merger Proposal requires the affirmative vote of holders of a majority of the Inflection Point Ordinary Shares outstanding.

The accompanying proxy statement/prospectus and proxy card are being provided to Inflection Point’s shareholders in connection with the solicitation of proxies to be voted at the extraordinary general meeting and at any adjournment of the extraordinary general meeting. Whether or not you plan to attend the extraordinary general meeting, all of Inflection Point’s shareholders are urged to read the accompanying proxy statement/prospectus, including the Annexes and the documents referred to herein, carefully and in their entirety. You should also carefully consider the risk factors described under the heading “Risk Factors” beginning on page 36 of the accompanying proxy statement/prospectus.

After careful consideration, the board of directors of Inflection Point (the “Inflection Point Board”) has unanimously approved and determined to be in the best interests of Inflection Point and its shareholders the Business Combination and unanimously recommends that shareholders vote “FOR” the Business Combination Proposal and “FOR” all other proposals presented to Inflection Point’s shareholders in the accompanying proxy statement/prospectus. When you consider the recommendation of these proposals by the Inflection Point Board, you should keep in mind that the Sponsor, Inflection Point Fund I, LP (“Inflection Point Fund”) and Inflection Point’s directors and officers, and/or their affiliates, have interests in the Business Combination that may conflict with your interests as a shareholder. For instance, the Sponsor, Inflection Point Fund and Inflection Point’s officers and directors, and/or their affiliates, will benefit from the completion of a business combination and may be incentivized to complete an acquisition of a less favorable target company or on terms less favorable to shareholders rather than liquidating Inflection Point. See the section of the accompanying proxy statement/prospectus entitled “The Business Combination Proposal — Interests of Certain Inflection Point Persons in the Business Combination” for a further discussion of these considerations. Quantum Space’s directors and executive officers also have interests in the Business Combination that are different from, or in addition to, and may conflict with, the interests of unaffiliated security holders of Inflection Point. See the section entitled “Interests of Quantum Space’s Directors and Executive Officers in the Business Combination” for a further discussion of these considerations.

In connection with the Business Combination, certain related agreements have been or will be entered into on or prior to the Closing, including the A&R Registration Rights Agreement, the Sponsor Support Agreement, the Member Support Agreement, the Pre-Funded SPAs, Pre-Funded Warrants, the Series A SPAs, the Series A Warrants (each as defined below), the Sponsor Lock-Up Agreement and the Seller Lock-Up Agreement (each as defined in the accompanying

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proxy statement/prospectus). See “Proposal No. 1 — The Business Combination Proposal — Related Agreements” and “Certain Relationships and Related Person Transactions” in the accompanying proxy statement/prospectus for more information.

Pursuant to the Cayman Constitutional Documents, a holder of Inflection Point Class A Shares sold as part of the units offered by Inflection Point in its initial public offering (the “IPO,” and the Inflection Point Class A Shares offered therein, the “Public Shares,” and holders of such shares, the “Public Shareholders”) may request to redeem all or a portion of such holder’s Public Shares for cash if the Business Combination is consummated. As a Public Shareholder, you will be entitled to receive cash for any Public Shares to be redeemed only if you:

(i)     (a) hold Public Shares or (b) hold Public Shares through the units offered by Inflection Point in the IPO (the “Inflection Point Units”) and elect to separate your Inflection Point Units into the underlying Public Shares and warrants to purchase one Inflection Point Class A Share offered as part of the Inflection Point Units in the IPO (the “Public Warrants”) prior to exercising your redemption rights with respect to the Public Shares;

(ii)    submit a written request to Continental Stock Transfer & Trust Company (“Continental”), Inflection Point’s transfer agent, including the legal name, phone number and address of the beneficial owner of the Public Shares for which redemption is requested, that Inflection Point redeem all or a portion of your Public Shares for cash; and

(iii)   deliver your share certificates for Public Shares (if any) along with other applicable redemption forms to Continental, physically or electronically through The Depository Trust Company.

Public Shareholders must complete the procedures for electing to redeem their Public Shares in the manner described above prior to 5:00 p.m., Eastern Time, on [•], 2026 (two business days prior to the initially scheduled date of the extraordinary general meeting), in order for their Public Shares to be redeemed.

Public Shareholders may elect to redeem Public Shares regardless of if or how they vote in respect of the Business Combination Proposal, and regardless of whether they hold Public Shares on the Record Date. If the Business Combination is not consummated, the Public Shares will be returned to the respective holder, broker or bank.

If a Public Shareholder properly exercises its right to redeem all or a portion of the Public Shares that it holds and timely delivers its share certificates (if any) and other redemption forms (as applicable) to Continental, and Inflection Point initiates the redemption of Public Shares in connection with the Business Combination (the “Redemption”) pursuant to the Cayman Constitutional Documents, Inflection Point will redeem such Public Shares for a per-share redemption price, payable in cash, equal to the aggregate amount then deposited in the trust account established at the consummation of the IPO (the “Trust Account”), calculated as of two business days prior to the consummation of the Business Combination, including interest earned on the Trust Account (net of amounts withdrawn to fund our working capital requirements, subject to an annual limit of $500,000 (plus the rollover of unused amounts from prior years) and/or to pay for our taxes (any withdrawals to pay for our taxes shall not be subject to the $500,000 annual limitation described in the foregoing) divided by the number of then issued Public Shares (the “Redemption Price”). For illustrative purposes, as of the Record Date, this would have amounted to approximately $[•] per Public Share. Prior to exercising redemption rights, Public Shareholders should verify the market price of the Inflection Point Class A Shares as they may receive higher proceeds from the sale of their Public Shares in the public market than from exercising their redemption rights if the market price per share is higher than the Redemption Price. Inflection Point cannot assure shareholders that they will be able to sell their Public Shares in the open market, even if the market price per share is higher than the Redemption Price stated above, as there may not be sufficient liquidity in our securities when our shareholders wish to sell their shares. If a Public Shareholder exercises its redemption rights in full, then it will be electing to exchange its Public Shares for cash and will no longer own Public Shares. Any request to redeem Public Shares, once made, may not be withdrawn unless the directors of Inflection Point determine (in their sole discretion) to permit the withdrawal of such redemption request (which they may do in whole or in part). If a Public Shareholder delivers its shares in connection with an election to redeem and subsequently decides prior to the deadline for submitting redemption requests not to elect to exercise such rights, it may request that Inflection Point instruct Continental to return the shares (physically or electronically). The holder can make such request by contacting Continental, at the address or email address listed in the accompanying proxy statement/prospectus. See “Extraordinary General Meeting of Inflection Point — Redemption Rights” of the accompanying proxy statement/prospectus for a detailed description of the procedures to be followed if you wish to redeem your Public Shares for cash.

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Notwithstanding the foregoing, a Public Shareholder, together with any affiliate of such Public Shareholder or any other Person with whom such Public Shareholder is acting in concert or as a “group” (as defined in Section 13(d)(3) of the Exchange Act), will be restricted from redeeming its Public Shares with respect to more than an aggregate of 15% of the Public Shares. Accordingly, if a Public Shareholder, alone or acting in concert or as a group, seeks to redeem more than 15% of the Public Shares, then any such shares in excess of that 15% limit would not be redeemed for cash.

The Sponsor and each director and officer of Inflection Point have agreed to, among other things, vote in favor of the Business Combination, and to waive their redemption rights in connection with the consummation of the Business Combination with respect to any Inflection Point Ordinary Shares held by them. None of Inflection Point’s Sponsor, directors or officers received separate consideration for their waiver of redemption rights. The Founder Shares (as defined in the accompanying proxy statement/prospectus) held by the Sponsor will be excluded from the pro rata calculation used to determine the per-share Redemption Price. As of the Record Date, the Sponsor owned approximately 25.0% of the issued and outstanding Inflection Point Ordinary Shares.

The obligations of Inflection Point and Quantum Space to consummate the Business Combination are subject to the satisfaction or waiver of certain customary closing conditions, including without limitation the following mutual conditions applicable to each Party: (i) each Required Regulatory Approval (as defined in the Business Combination Agreement) must have been obtained, made or completed and must be in full force and effect, and any applicable waiting period (and any extension thereof) under any applicable antitrust law or any foreign-investment-review, national-security, export controls and sanctions, or sensitive-technology authority shall have expired or been terminated; (ii) the adoption and/or approval, as applicable, by Inflection Point’s shareholders of the Purchaser Shareholder Approvals (as defined in the Business Combination Agreement); (iii) no adverse law or order then in effect prevents or prohibits consummation of the Business Combination; (iv) the Registration Statement (as defined in the Business Combination Agreement) becoming effective under the Securities Act of 1933, as amended (the “Securities Act”), and remaining effective as of the Closing, with no stop order or similar order suspending its effectiveness; (v) approval of the listing of the New Quantum Space Class A-1 Common Stock on NYSE, subject to certain conditions and exceptions as described in the Business Combination Agreement; and (vi) the Proposed Charter shall have been duly filed with the Secretary of State of the State of Delaware and the Proposed Bylaws shall have been duly adopted, in each case in full force and effect as of the Closing.

In addition to the foregoing mutual conditions, the obligations of Quantum Space to consummate the Business Combination are subject to the satisfaction or waiver of the following additional conditions: (i) the representations and warranties of the Purchaser Fundamental Representations (as defined in the Business Combination Agreement) shall be true and correct in all respects (other than de minimis inaccuracies); (ii) the other representations and warranties of Inflection Point, PubCo and Merger Sub shall be true and correct except for any failures to be true and correct that (without giving effect to any qualifications or limitations as to materiality or Purchaser Material Adverse Effect (as defined in the Business Combination Agreement), individually or in the aggregate, have not had and would not reasonably be expected to have a Purchaser Material Adverse Effect; (iii) the performance by Inflection Point, PubCo and Merger Sub (collectively, the “Purchaser Parties”) of their respective covenants and agreements in all material respects; (iv) no Purchaser Material Adverse Effect shall have occurred and be continuing; (v) the completion of the Domestication in accordance with the Business Combination Agreement; (vi) Inflection Point shall have made appropriate arrangements to have the Trust Account available at the Closing for payment of certain amounts payable in connection with the Closing; (vii) the aggregate cash proceeds available to Inflection Point from the Trust Account (after giving effect to all redemptions), plus the gross proceeds of the Closing PIPE Investment, less certain transaction expenses as specified in the Business Combination Agreement, shall be equal to or greater than $90 million (the “Minimum Cash Condition”); and (viii) the delivery of customary certificates and certain other ancillary documents.

In addition to the mutual conditions described above, the obligations of Inflection Point to consummate the Business Combination are subject to the satisfaction or waiver of the following additional conditions: (i) the Company Fundamental Representations (as defined in the Business Combination Agreement) shall be true and correct in all respects (other than de minimis inaccuracies); (ii) the other representations and warranties of Quantum Space shall be true and correct except for any failures to be true and correct that (without giving effect to any qualifications or limitations as to materiality or Company Material Adverse Effect (as defined in the Business Combination Agreement), individually or in the aggregate, have not had and would not reasonably be expected to have a Company Material Adverse Effect; (iii) the performance by Quantum Space of its covenants and agreements in all material respects; (iv) the Recapitalization shall have been completed in accordance with the Business Combination Agreement; (v) the

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delivery of customary certificates and certain other ancillary documents; (vi) each Material Third-Party Consent (as defined in the Business Combination Agreement) shall have been obtained, made or completed and shall be in full force and effect; and (vii) the Requisite Member Approval (as defined in the Business Combination Agreement) shall have been obtained.

We cannot assure you as to whether these conditions will be satisfied or waived.

Following the Closing, the New Quantum Space Class A-1 Common Stock and New Quantum Space Warrants are intended to be listed, subject to NYSE approval, under the proposed symbols “QSPC” and “QSPCW,” respectively. Pursuant to the terms of the Business Combination Agreement, as a closing condition, the New Quantum Space Class A-1 Common Stock issued as merger consideration must be conditionally approved for listing on NYSE subject to any requirement to have a sufficient number of round lot holders of the New Quantum Space Common Stock, but there can be no assurance that such listing condition will be met. If such listing condition is not met, the Business Combination will not be consummated unless the listing condition is waived by the parties to the Business Combination Agreement. It is important for you to know that, at the time of Inflection Point’s extraordinary general meeting, the parties may not have received from NYSE either confirmation of the listing of the New Quantum Space Class A-1 Common Stock or that approval will be obtained prior to the consummation of the Business Combination, and it is possible that the listing condition to the consummation of the Business Combination may be waived by the parties to the Business Combination Agreement. As a result, you may be asked to vote to approve the Business Combination and the other proposals included in this proxy statement/prospectus without such confirmation, and, further, it is possible that such confirmation may never be received and the Business Combination could still be consummated if such condition is waived or is subject to an exception and therefore the New Quantum Space Class A-1 Common Stock would not be listed on any nationally recognized securities exchange. The Inflection Point Units, Inflection Point Class A Shares and Inflection Point Warrants are currently listed on Nasdaq under the symbols “IPFXU,” “IPFX” and “IPFXW,” respectively.

Material Financing Transactions

Simultaneously with the consummation of Inflection Point’s IPO, the Sponsor purchased 5,000,000 Private Placement Warrants in a private placement, at a price of $1.00 per warrant, generating total proceeds of $5,000,000.

Since Inflection Point’s IPO, there has not been any material financing of Inflection Point. However, if necessary, in order to fund working capital deficiencies or finance transaction costs in connection with the Business Combination, the Sponsor, or certain of Inflection Point’s officers and directors or their affiliates may, but are not obligated to, loan funds to Inflection Point as may be required. If Inflection Point completes the Business Combination or another initial business combination, it would repay such loaned amounts. In the event that the Business Combination or another initial business combination does not close, Inflection Point may use a portion of its working capital to repay such loaned amounts.

Up to $1,500,000 of such working capital loans may be convertible into additional Private Placement Warrants at a price of $1.00 per warrant at the option of the lender. As of October 21, 2026, the most recent practicable date prior to the date of this proxy statement/prospectus, no working capital loans have been made to Inflection Point.

In connection with the transactions contemplated by the Business Combination Agreement, on June 8, 2026, Quantum Space entered into certain securities purchase agreements (the “Pre-Funded SPAs”), respectively, with certain accredited investors named therein, including Inflection Point Fund, (collectively, the “Pre-Funded Investors”). Pursuant to the Pre-Funded SPAs, the Pre-Funded Investors agreed, among other things, to purchase, and Quantum Space issued and sold, 5,882,352 Series B convertible preferred units of Quantum Space (the “Pre-Funded Preferred Units”) and warrants to purchase 5,882,352 Quantum Space Common Units, at an initial exercise price of $12.00 per unit (the “Pre-Funded Warrants”), for an aggregate purchase price of approximately $60 million, substantially concurrently with the execution and delivery of the Business Combination Agreement.

In connection with the transactions contemplated by the Business Combination Agreement, on June 8, 2026, PubCo, Quantum Space and the accredited investors named therein (collectively, the “Closing PIPE Investors”) entered into certain securities purchase agreements (the “Series A SPAs”). Pursuant to the Series A SPAs, the Closing PIPE Investors have agreed, among other things, to purchase, at Closing, (i) 19,999,994 shares of New Quantum Space’s 12.0% Series A Cumulative Convertible Preferred Stock, par value $0.0001 per share (“Series A Preferred Stock”), having the rights, preferences and privileges set forth in the form of Certificate of Designation of Preferences, Rights

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and Limitations of 12.0% Series A Cumulative Convertible Preferred Stock (the “Certificate of Designation”) and (ii) warrants (the “Preferred Investor Warrants”) to purchase an aggregate of 19,999,994 shares of New Quantum Space Class A-1 Common Stock, for an aggregate purchase price of approximately $240 million. Each share of New Quantum Space Series A Preferred Stock will have a stated value of $12.00 (the “Stated Value”).

Compensation of the Sponsor and its Affiliates

Set forth below is a summary of the amount of compensation and securities received, to be received or that may be received by the Sponsor, its affiliates and Inflection Point’s directors, officers and their affiliates in connection with the Business Combination and related transactions. All of Inflection Point’s officers and directors, in addition to certain third-party investors, are members of the Sponsor and therefore have an indirect interest in the amount of compensation received by and securities issued to the Sponsor, and in the consideration paid or to be paid by the Sponsor, in connection with the Business Combination or any related financing transaction.

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See “Questions and Answers — What is the effective purchase price attributed to the New Quantum Space Common Stock to be received by the Public Shareholders, the Sponsor, and the Quantum Space stockholders at Closing?”

As of the date of this proxy statement/prospectus, no compensation of any kind, including finder’s and consulting fees, have been paid or will be paid to the Sponsor, Inflection Point Fund, members of our management team, or any of their affiliates, for services rendered prior to or in connection with the completion of the Business Combination. However, Inflection Point may pay consulting, success or finder fees to these entities or individuals, or their respective affiliates in connection with the consummation of the Business Combination, and Inflection Point may engage the Sponsor or an affiliate of the Sponsor as an advisor or otherwise in connection with the Business Combination and certain other transactions and pay such person or entity a salary or fee in an amount that constitutes a market standard for comparable transactions. Except as set out in the immediately preceding sentence, as of the date of this proxy statement/prospectus, no terms for any such arrangements have been determined and no written agreements exist with respect to such arrangements. Additionally, these entities or individuals may be reimbursed for out-of-pocket expenses incurred in connection with activities on our behalf such as identifying potential target businesses and performing due diligence on suitable business combinations. As of the date of this proxy statement/prospectus, there are no out-of-pocket expenses to be reimbursed. The reimbursement of expenses and advances and the securities issued to the Sponsor and Inflection Point Fund may result in a material dilution of the equity interests of non-redeeming Public Shareholders. See “Summary of the Proxy Statement/Prospectus — Dilution,” “The Business Combination Proposal — Interests of Certain Inflection Point Persons in the Business Combination” and “Information About Inflection Point — Executive and Director Compensation.”

Potential conflicts of interest in connection with the Business Combination

There may be actual or potential material conflicts of interest between or among (i) the Sponsor, Inflection Point Fund, Inflection Point’s officers and directors, Quantum Space’s officers and directors and (ii) unaffiliated security holders of Inflection Point. Such conflicts of interest may include a material conflict of interest arising in determining whether to proceed with the Business Combination, the compensation of Inflection Point’s directors and officers and the compensation of the Sponsor and Inflection Point in connection with the Business Combination. See the section entitled “The Business Combination Proposal — Interests of Certain Inflection Point Persons in the Business Combination.” Quantum Space’s directors and executive officers also have interests in the Business Combination that are different from, or in addition to, and may conflict with, the interests of unaffiliated security holders of Inflection Point. These interests include their ownership of Quantum Space Incentive Units and other Quantum Space equity interests that will be converted or exchanged into Quantum Space Common Units in the Recapitalization, the post-Closing founder incentive arrangement to be established in connection with the Closing for Dr. Ghaffarian and other members of Quantum Space’s executive management, and the expected continuation of Mr. Bridenstine as Chief Executive Officer and a director, Mr. Parekh as Chief Financial Officer and Treasurer, and Dr. Ghaffarian as Executive Chairman and a director of New Quantum Space, together with the compensation and equity award opportunities associated with those positions. Because these benefits are contingent upon, or would be enhanced by, the completion of the Business Combination, they may create an incentive for Quantum Space’s directors and executive officers to support and complete the Business Combination even in circumstances in which unaffiliated security holders of Inflection Point might prefer to redeem their Public Shares, to pursue a different transaction or not to complete a business combination at all. In addition to the interests described above, Quantum Space’s directors and executive officers have other specific interests in the Business Combination that are different from, or in addition to, and may conflict with, the interests of unaffiliated security holders of Inflection Point as described in the section entitled “Executive and Director Compensation of Quantum Space — Interests of Quantum Space’s Directors and Executive Officers in the Business Combination.”

For terms used in this notice but not otherwise defined herein, please refer to the Frequently Used Terms section of the accompanying proxy statement/prospectus.

Your vote is very important.    Whether or not you plan to attend the extraordinary general meeting, please vote as soon as possible by following the instructions in the accompanying proxy statement/prospectus to make sure that your shares are represented at the extraordinary general meeting. If you hold your shares in “street name” through a bank, broker or other nominee, you will need to follow the instructions provided to you by your bank, broker or other nominee to ensure that your shares are represented and voted at the extraordinary general meeting or any adjournment thereof. The transactions contemplated by the Business Combination Agreement will be consummated only if the Condition Precedent Proposals are approved at the extraordinary

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general meeting, and if the other conditions to closing are satisfied or waived. Each of the Condition Precedent Proposals is cross-conditioned on the approval of each other Condition Precedent Proposal. The Advisory Organizational Documents Proposals and the Adjournment Proposal are not conditioned upon the approval of any other proposal set forth in the accompanying proxy statement/prospectus.

If you are a shareholder entitled to attend and vote at this extraordinary general meeting, you may appoint a proxy or proxies to vote on your behalf. A proxy need not be a shareholder of Inflection Point.

If you sign, date and return your proxy card signed and without indicating how you wish to vote, your proxy card will appoint Kevin Shannon and Adam Saks as your proxy to vote your shares in their discretion. Kevin Shannon and Adam Saks will vote “FOR” each of the proposals described in this notice, and in accordance with their judgment on any other matters that may properly come before the extraordinary general meeting. If you fail to return your proxy card or fail to instruct your bank, broker or other nominee how to vote, and do not attend the extraordinary general meeting in person, the effect will be, among other things, that your shares will not be counted for purposes of determining whether a quorum is present at the extraordinary general meeting and will not be voted. If you are a shareholder of record and you attend the extraordinary general meeting and wish to vote in person, you may withdraw your proxy and vote in person.

TO EXERCISE YOUR REDEMPTION RIGHTS, YOU MUST SUBMIT A WRITTEN REQUEST, INCLUDING THE LEGAL NAME, PHONE NUMBER AND ADDRESS OF THE BENEFICIAL OWNER OF THE SHARES FOR WHICH REDEMPTION IS REQUESTED, TO CONTINENTAL THAT YOUR PUBLIC SHARES BE REDEEMED FOR CASH AND DELIVER YOUR PUBLIC SHARES TO CONTINENTAL, PHYSICALLY OR ELECTRONICALLY USING THE DEPOSITORY TRUST COMPANY’S DWAC (DEPOSIT WITHDRAWAL AT CUSTODIAN) SYSTEM, IN EACH CASE, IN ACCORDANCE WITH THE PROCEDURES AND DEADLINES DESCRIBED IN THE ACCOMPANYING PROXY STATEMENT/PROSPECTUS.    IF THE BUSINESS COMBINATION IS ABANDONED, THEN THE PUBLIC SHARES WILL NOT BE REDEEMED FOR CASH. IF YOU HOLD THE SHARES IN STREET NAME, YOU WILL NEED TO INSTRUCT THE ACCOUNT EXECUTIVE AT YOUR BANK OR BROKER TO WITHDRAW THE SHARES FROM YOUR ACCOUNT IN ORDER TO EXERCISE YOUR REDEMPTION RIGHTS. SEE “EXTRAORDINARY GENERAL MEETING OF INFLECTION POINT — REDEMPTION RIGHTS” IN THE ACCOMPANYING PROXY STATEMENT/PROSPECTUS FOR MORE SPECIFIC INSTRUCTIONS.

On behalf of the Inflection Point Board, I would like to thank you for your support and look forward to the successful completion of the Business Combination.

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES REGULATORY AGENCY HAS APPROVED OR DISAPPROVED THE TRANSACTIONS DESCRIBED IN THE ACCOMPANYING PROXY STATEMENT/PROSPECTUS, PASSED UPON THE MERITS OR FAIRNESS OF THE BUSINESS COMBINATION OR RELATED TRANSACTIONS OR PASSED UPON THE ADEQUACY OR ACCURACY OF THE DISCLOSURE IN THE ACCOMPANYING PROXY STATEMENT/PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY CONSTITUTES A CRIMINAL OFFENSE.

The accompanying proxy statement/prospectus is dated [•], 2026 and is first being mailed to shareholders on or about [•], 2026.

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REFERENCES TO ADDITIONAL INFORMATION

The accompanying proxy statement/prospectus incorporates important information that is not included in or delivered with the accompanying proxy statement/prospectus. This information is available for you to review through the SEC’s website at www.sec.gov.

You may request copies of the accompanying proxy statement/prospectus or other information concerning Inflection Point, without charge, by written request to 1680 Michigan Avenue, Suite 700 #1031, Miami Beach, FL 33139; or Alliance Advisors, LLC, our proxy solicitor, by calling 1-855-206-2037, or by emailing [email protected], or from the SEC through the SEC website at the address provided above.

In order for you to receive timely delivery of the documents in advance of the extraordinary general meeting of Inflection Point to be held on [•], 2026, you must request the information no later than five business days prior to the date of the extraordinary general meeting, by [•], 2026.

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FREQUENTLY USED TERMS

Unless otherwise stated or unless the context otherwise requires, the terms “we,” “us,” “our,” and “Inflection Point” refer to Inflection Point Acquisition Corp. VI. Prior to the Domestication, Inflection Point is an exempted company incorporated under the laws of the Cayman Islands. Following the Domestication, subject to shareholder approval, Inflection Point will be a corporation incorporated under the laws of the State of Delaware. Inflection Point, following the Domestication, is referred to in this document as Post-Domestication Inflection Point. IPFX PubCo, Inc., a Delaware corporation and direct, wholly owned subsidiary of Inflection Point is referred to in this document as “PubCo,” and following the Closing, is referred to in this document as “New Quantum Space” or the “combined company.”

In this document:

“50% Redemption Scenario” means the hypothetical scenario in which 12,650,000 Public Shares (which represents 50% of the total Public Shares outstanding) are redeemed, resulting in an aggregate cash payment of approximately $127,388,545 out of the Trust Account based on an assumed redemption price of $10.07 per share as of June 30, 2026.

“A&R Operating Agreement” means the Eighth Amended and Restated Limited Liability Company Operating Agreement of Quantum Space to be adopted at the Closing.

“A&R Registration Rights Agreement” means the amended and restated registration rights agreement to be entered into by and among New Quantum Space, the Sponsor, certain Quantum Space Equity Holders, Pre-Funded PIPE Investors and the Closing PIPE Investors at the Closing.

“Advisory Organizational Documents Proposals” means the eight separate proposals, collectively, to approve on an advisory, non-binding basis by ordinary resolution certain material differences between the Cayman Constitutional Documents and the Proposed Organizational Documents which will govern the rights of stockholders of PubCo following the Merger:

“Aggregate Consideration” means the aggregate consideration to be received by the Sellers in respect of the Business Combination, a number of Quantum Space Common Units and shares of New Quantum Space Class A Common Stock equal, in the aggregate, to the quotient of (a) $600,000,000, divided by (b) the per-share redemption price applicable to an Inflection Point Class A Share elected to be redeemed, as calculated in accordance with the Investment Management Trust Agreement and Inflection Point’s amended and restated memorandum and articles of association. For the avoidance of doubt, the paired non-economic voting shares of New Quantum Space Class B-1 Common Stock and New Quantum Space Class B-2 Common Stock purchased by Up-C Sellers shall not constitute Aggregate Consideration.

“Alliance Advisors” means Alliance Advisors, LLC, our proxy solicitor.

“Antitrust Division” means the Antitrust Division of the Department of Justice.

“Business Combination” means the transactions contemplated by the Business Combination Agreement.

“Business Combination Agreement” means that certain Business Combination Agreement, attached to this proxy statement/prospectus as Annex A, dated as of June 8, 2026, as amended on October 22, 2026, by and among Inflection Point, PubCo, Merger Sub and Quantum Space.

“Cantor” means Cantor Fitzgerald & Co., the representative of the IPO underwriters.

“Cayman Companies Act” means the Companies Act of the Cayman Islands (As Revised).

“Cayman Constitutional Documents” means the existing amended and restated memorandum and articles of association of Inflection Point, as it may be amended, restated, supplemented or otherwise modified from time to time, under the Companies Act.

“Certificate of Designation” means the Certificate of Designation of Preferences, Rights and Limitations of 12.0% Series A Cumulative Convertible Preferred Stock of New Quantum Space.

“CFIUS” means the Committee on Foreign Investment in the United States.

“Closing” means the closing of the Business Combination.

“Closing Date” means the day of the Closing.

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“Closing PIPE Investments” means the purchase of (i) 19,999,994 shares of New Quantum Space Series A Preferred Stock and (ii) New Quantum Space Preferred Investor Warrants to purchase an aggregate of 19,999,994 shares of New Quantum Space Class A-1 Common Stock, for an aggregate purchase price of approximately $240 million pursuant to the Series A SPA.

“Closing PIPE Investors” means the accredited investor parties to the Series A SPAs.

“Condition Precedent Proposals” means, collectively, the Business Combination Proposal, the Domestication Proposal, the Merger Proposal, the Domesticated Organizational Documents Proposal, the Director Election Proposal, the New Quantum Space Incentive Plan Proposal and the New Quantum Space Employee Stock Purchase Plan Proposal.

“DGCL” means the Delaware General Corporation Law.

“Disclosure Schedules” means the disclosure schedules to the Business Combination Agreement.

“Domesticated Organizational Documents Proposal” means the proposal before Inflection Point’s shareholders to adopt the Proposed Domesticated Organizational Documents of Post-Domestication Inflection Point in connection with the Domestication.

“Domestication” means the deregistering of Inflection Point from the Register of Companies in the Cayman Islands by way of continuation out of the Cayman Islands and into the State of Delaware and domesticating as a Delaware corporation under the applicable provisions of the Companies Act and the DGCL and all matters necessary or ancillary thereto.

“Effective Time” means the time at which Merger Sub and Purchaser shall consummate the Merger.

“Employee” means, pursuant to the ESPP, any person, including an officer or director, who is “employed” for purposes of Section 423(b)(4) of the Code by New Quantum Space or a Related Corporation; however, service solely as a director, or payment of a fee for such services, will not cause a director to be considered an “Employee.”

“ESPP” means the Quantum Space, Inc. 2026 Employee Stock Purchase Plan.

“ESPP Committee” means a committee of one or more members of the New Quantum Space Board to whom authority has been delegated by the New Quantum Space Board.

“Exchange Act” means the Securities Exchange Act of 1934, as amended.

“Extraordinary General Meeting” means that certain extraordinary general meeting to be held by Inflection Point to consider matters relating to the Business Combination at [•], Eastern Time, on [•], 2026.

“Fair Market Value” means, as of any date, the value of the New Quantum Space Common Stock determined in the ESPP.

“Founder Shares” means the Inflection Point Class B Shares.

“FTC” means the Federal Trade Commission.

“HSR Act” means the Hart-Scott-Rodino Act of 1976.

“Incentive Units” means the incentive units to be issued to Dr. Ghaffarian following the Closing pursuant to the Founder Incentive Arrangement, which Incentive Units, upon satisfaction of certain performance-based vesting conditions, may be converted into Quantum Space Common Units in accordance with the terms of the A&R Operating Agreement.

“Inflection Point” means Inflection Point Acquisition Corp. VI, a Cayman Islands exempted company.

“Inflection Point Class A Shares” means the Class A ordinary shares, par value $0.0001 per share, of Inflection Point prior to the Domestication.

“Inflection Point Class B Shares” means the Class B ordinary shares, par value $0.0001 per share, of Inflection Point prior to the Domestication.

“Inflection Point Fund” means Inflection Point Fund I, LP.

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“Inflection Point Ordinary Shares” means the Inflection Point Class A Shares and Inflection Point Class B Shares prior to the Domestication.

“Inflection Point Warrants” or “Public Warrants” means warrants exercisable to purchase one Inflection Point Class A Share at $11.50 per share prior to the Domestication.

“Inflection Point Unaffiliated Shareholders” means the Inflection Point shareholders other than (a) the Sponsor, (b) Inflection Point Fund, (c) officers, directors or affiliates of Inflection Point, the Sponsor or Inflection Point Fund, and (d) Public Shareholders who elect to redeem their shares prior to or in connection with the Business Combination.

“Inflection Point Units” means a unit of Inflection Point, each consisting of one Inflection Point Class A Share and one-third of one Inflection Point Warrant prior to the Domestication.

“Investment Management Trust Agreement” means the Investment Management Trust Agreement dated as of March 26, 2026, by and between Inflection Point and Continental Stock Transfer & Trust Company, as trustee.

“IPO” means the initial public offering of Inflection Point consummated on March 30, 2026.

“Letter Agreement” means the Letter Agreement, dated March 26, 2026, by and among Inflection Point, the Sponsor, and officers and directors of Inflection Point.

“Lock-Up Holders” means the certain equity holders of Quantum Space who will enter into the Seller Lock-Up Agreement.

“Maximum Redemption Scenario” means the hypothetical scenario in which all 25,300,000 Public Shares (which represents the total number of Public Shares outstanding) are redeemed, resulting in an aggregate cash payment of approximately $254,777,090 out of the Trust Account based on an assumed redemption price of $10.07 per share as of June 30, 2026.

“Merger” means the merger of Merger Sub with and into Inflection Point, with Inflection Point surviving the merger as a direct and wholly owned subsidiary of PubCo.

“Merger Sub” means IPFX Merger Sub, Inc., a Delaware corporation and direct, wholly owned subsidiary of PubCo.

“Nasdaq” means the Nasdaq Stock Market LLC.

“New Quantum Space” means PubCo following the Closing.

“New Quantum Space Board” means the board of directors of New Quantum Space.

“New Quantum Space Class A Common Stock” means, collectively, the New Quantum Space Class A-1 Common Stock and the New Quantum Space Class A-2 Common Stock.

“New Quantum Space Class A-1 Common Stock” means the Class A-1 common stock of New Quantum Space, par value $0.0001 per share.

“New Quantum Space Class A-2 Common Stock” means the Class A-2 common stock of New Quantum Space, par value $0.0001 per share.

“New Quantum Space Class B-1 Common Stock” means the Class B-1 common stock of New Quantum Space, par value $0.0001 per share.

“New Quantum Space Class B-2 Common Stock” means the Class B-2 common stock of New Quantum Space, par value $0.0001 per share.

“New Quantum Space Common Stock” means, collectively, the New Quantum Space Class A Common Stock, New Quantum Space Class B-1 Common Stock and New Quantum Space Class B-2 Common Stock.

“New Quantum Space Incentive Plan” means the Quantum Space, Inc. 2026 Equity Incentive Plan.

“New Quantum Space Series A Warrant” means a warrant to purchase a number of shares of New Quantum Space Class A-1 Common Stock initially issued in exchange for a Pre-Funded Warrant or pursuant to a Series A SPA.

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“New Quantum Space Warrant” means a warrant to acquire one share of New Quantum Space Class A-1 Common Stock.

“Newbridge” means Newbridge Securities Corporation.

“No Redemption Scenario” means the hypothetical scenario in which no Public Shareholders exercise their right to have their Public Shares redeemed for their pro rata share of the Trust Account.

“NYSE” means the New York Stock Exchange.

“Participating TRA Holder” means (i) each holder of Quantum Space Common Units (other than Post-Domestication Inflection Point) that is designated as such on the Closing Member Schedule and is a party to the Tax Receivable Agreement and (ii) each person that receives Quantum Space Common Units upon conversion of Incentive Units in accordance with the A&R Operating Agreement and becomes a party to the Tax Receivable Agreement pursuant to a joinder thereto.

“Post-Domestication Bylaws” means the proposed new bylaws of Post-Domestication Inflection Point pursuant to the DGCL, attached to this proxy statement/prospectus as Annex L.

“Post-Domestication Charter” means the proposed new certificate of incorporation of Post-Domestication Inflection Point, attached to this proxy statement/prospectus as Annex K.

“Post-Domestication Inflection Point Common Stock” means the shares of common stock of Post-Domestication Inflection Point, par value $0.0001 per share.

“Post-Domestication Inflection Point” means Inflection Point after the Domestication.

“Post-Domestication Warrant” means a warrant of Post-Domestication Inflection Point.

“Pre-Funded Investors” means the certain accredited investors party to the Pre-Funded SPAs.

“Pre-Funded SPAs” means the securities purchase agreement, dated as of June 8, 2026, by and among Quantum Space and certain accredited investors named therein, including Inflection Point Fund.

“Proposed Bylaws” means the proposed new bylaws of New Quantum Space pursuant to the DGCL, attached to this proxy statement/prospectus as Annex C.

“Proposed Charter” means the proposed new certificate of incorporation of New Quantum Space pursuant to the DGCL, attached to this proxy statement/prospectus as Annex B.

“Proposed Domesticated Organizational Documents” means the Post-Domestication Charter and Post-Domestication Bylaws, together.

“Proposed Organizational Documents” means the Proposed Bylaws and Proposed Charter, together.

“Public Warrants” means the Inflection Point Warrants sold as part of the Inflection Point Units in Inflection Point’s IPO.

“Public Shareholders” means the holders of Public Shares of Inflection Point.

“Public Shares” means the Inflection Point Class A Shares initially sold in Inflection Point’s initial public offering.

“Quantum Space” means Quantum Space, LLC, a Delaware limited liability company.

“Quantum Space Common Units” means the common units of Quantum Space.

“Quantum Space Equity Holders” means the holders of equity securities of Quantum Space.

“Quantum Space Incentive Units” means the incentive units granted under the Quantum Space 2022 Plan representing “profits interests” for U.S. federal income tax purposes that, to the extent vested, will be converted into Quantum Space Common Units in connection with the Recapitalization.

“R&D” means research and development.

“Record Date” means [•], 2026.

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“Recapitalization” means the recapitalization Quantum Space will effectuate immediately prior to the Closing, pursuant to which, among other things, all outstanding equity securities of Quantum Space, other than the Pre-Funded Preferred Units and Pre-Funded Warrants issued to the Pre-Funded Investors in the Pre-Funded Investment, will be converted or exchanged into Quantum Space Common Units.

“Redemption Price” means the per-share redemption price, payable in cash equal to the aggregate amount then deposited in the Trust Account, calculated as of two business days prior to the consummation of the Business Combination, including interest earned on the Trust Account (which interest shall be net of taxes payable) divided by the number of then issued Public Shares.

“Reed Smith” means Reed Smith LLP, counsel to Quantum Space.

“Related Corporation” means any “parent corporation” or “subsidiary corporation” of New Quantum Space whether now or subsequently established, as those terms are defined in Sections 424(e) and (f), respectively, of the Code.

“Rule 144” means Rule 144 under the Securities Act.

“SEC” means the U.S. Securities and Exchange Commission.

“Sellers” means each holder of Quantum Space Common Units immediately prior to the Recapitalization (other than Quantum Space itself) that is identified as a Seller on the Closing Member Schedule (as defined in the Business Combination Agreement) to the Business Combination Agreement and that is to receive Aggregate Consideration in respect of the Business Combination, in each case as such person executes and becomes a party to each Ancillary Document required to be executed by such Person in connection with the Business Combination (which shall include the Company A&R Operating Agreement, the Seller Class B Subscription Agreement, the Seller Lock-Up Agreement, the A&R Registration Rights Agreement and the Tax Receivable Agreement, as applicable, and shall include the Member Support Agreement solely with respect to any such Person that is also a Required Member).

“Seller Lock-Up Agreement” means the Lock-Up Agreement to be entered into by and among New Quantum Space and the Lock-Up Holders at the Closing.

“Series A Preferred Stock” means the 12.0% Series A Cumulative Convertible Preferred Stock, par value $0.0001 per share, of New Quantum Space.

“Series A SPAs” means the securities purchase agreement, dated as of June 8, 2026, by and among PubCo, Quantum Space and certain accredited investors named therein.

“Sponsor” means Inflection Point Holdings VI LLC, a Delaware limited liability company.

“Sponsor Lock-Up Agreement” means the Lock-Up Agreement to be entered into by and between the Sponsor and New Quantum Space at the Closing.

“Sponsor Lock-Up Founder Shares” means any shares of New Quantum Space Class A-1 Common Stock the Sponsor received upon conversion of its Inflection Point Class B Shares in connection with the Domestication and the Merger.

“Sponsor Lock-Up Securities” means the Sponsor Lock-Up Founder Shares and Sponsor Lock-Up Warrants.

“Sponsor Lock-Up Warrants” means any warrants to acquire shares of New Quantum Space Class A-1 Common Stock held by the Sponsor.

“Sponsor Share Conversion” means the conversion of Founder Shares into Inflection Point Class A Shares immediately prior to the Domestication.

“Sponsor Support Agreement” means that certain Sponsor Support Agreement, dated as of June 8, 2026, by and between Sponsor, Quantum Space and Inflection Point, and attached hereto as Annex D.

“Tax Benefit Payment” means, with respect to any Participating TRA Holder, an amount equal to the sum of the Net Tax Benefit that is attributable to such holder and the Interest Amount with respect thereto, as such terms are defined in the Tax Receivable Agreement.

“Trust Account” means the trust account of Inflection Point that holds the proceeds from the IPO and certain of the proceeds from the sale of the Private Placement Warrants.

“White & Case” means White & Case LLP, counsel to Inflection Point.

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MARKET AND INDUSTRY DATA

Information contained in this proxy statement/prospectus concerning the market and the industry in which Quantum Space competes, including its market position, general expectations of market opportunity, size and growth rates, is based on information from various third-party sources, on assumptions made by Quantum Space based on such sources and Quantum Space’s knowledge of the markets for its services and solutions. This information and any estimates provided herein involve numerous assumptions and limitations, and you are cautioned not to give undue weight to such information. Third-party sources generally state that the information contained in such source has been obtained from sources believed to be reliable. The industry in which Quantum Space operates is subject to a high degree of uncertainty and risk. As a result, the estimates and market and industry information provided in this proxy statement/prospectus are subject to change based on various factors, including those described in the sections entitled “Cautionary Note Regarding Forward-Looking Statements” and “Risk Factors — Risks Related to Quantum Space’s Business and Industry” beginning on page 64 of this proxy statement/prospectus and elsewhere in this proxy statement/prospectus.

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This proxy statement/prospectus contains forward-looking statements. These forward-looking statements include, without limitation, statements relating to expectations for future financial performance, business strategies or expectations for Inflection Point’s, Quantum Space’s and New Quantum Space’s respective business, and the timing for and ability of Quantum Space and Inflection Point to complete the Business Combination. These statements are based on the beliefs and assumptions of the management of Quantum Space and Inflection Point. Although Quantum Space and Inflection Point believe that their respective plans, intentions and expectations reflected in or suggested by these forward-looking statements are reasonable, neither Quantum Space nor Inflection Point can assure you that either will achieve or realize these plans, intentions or expectations. These statements constitute projections, forecasts and forward-looking statements, and are not guarantees of performance. Such statements can be identified by the fact that they do not relate strictly to historical or current facts. When used in this proxy statement/prospectus, words such as “anticipate,” “believe,” “can,” “continue,” “could,” “estimate,” “expect,” “forecast,” “intend,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “seek,” “should,” “strive,” “target,” “will,” “would” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking.

BDO USA, P.C., Inflection Point’s independent auditor, has not examined, compiled or otherwise applied procedures with respect to the accompanying forward-looking financial information presented herein and, accordingly, expresses no opinion or any other form of assurance on it.

Forward-looking statements in this proxy statement/prospectus and in any document incorporated by reference in this proxy statement/prospectus may include, for example, statements about Quantum Space and Inflection Point prior to the Business Combination and the Company following the Business Combination, including:

•        the ability to satisfy the closing conditions to the Business Combination, including approval by equityholders of Quantum Space;

•        the ability to realize the benefits expected from the Business Combination;

•        the ability to consummate the Business Combination;

•        the ability to obtain and/or maintain the listing of the New Quantum Space Class A-1 Common Stock on NYSE following the Business Combination;

•        the ability to raise financing in the future and to comply with restrictive covenants related to long-term indebtedness;

•        the future financial performance of New Quantum Space and Quantum Space OpCo following the Business Combination;

•        New Quantum Space’s and Quantum Space OpCo’s ability to retain or recruit, or to effect changes required in, their officers, key employees or directors following the Business Combination;

•        New Quantum Space’s and Quantum Space OpCo’s ability to comply with laws and regulations applicable to their business; and

•        expansion plans and opportunities.

These forward-looking statements are based on information available as of the date of this proxy statement/prospectus and Quantum Space’s and Inflection Point’s management teams’ current expectations, forecasts and assumptions, and involve a number of judgments, known and unknown risks and uncertainties and other factors, many of which are outside the control of Quantum Space, Inflection Point and their respective directors, officers and affiliates. Accordingly, forward-looking statements should not be relied upon as representing Quantum Space views as of any subsequent date. Inflection Point and Quantum Space do not undertake any obligation to update, add or to otherwise correct any forward-looking statements contained herein to reflect events or circumstances after the date they were made, whether as a result of new information, future events, inaccuracies that become apparent after the date hereof or otherwise, except as may be required under applicable securities laws.

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You should not place undue reliance on these forward-looking statements. Should one or more of a number of known and unknown risks and uncertainties materialize, or should any of our assumptions prove incorrect, actual results or performance may be materially different from those expressed or implied by these forward-looking statements. Some factors that could cause actual results to differ include, but are not limited to:

•        the occurrence of any event, change or other circumstances that could delay the Business Combination or give rise to the termination of the Business Combination Agreement;

•        the outcome of any legal proceedings that may be instituted against Quantum Space or Inflection Point following announcement of the Business Combination and transactions contemplated thereby;

•        the inability to complete the Business Combination due to the failure to obtain approval of Quantum Space’s equityholders or Inflection Point’s shareholders, the inability to complete the Closing PIPE Investments or the failure to meet other conditions to closing in the Business Combination Agreement;

•        the inability to obtain or maintain the listing of the New Quantum Space Class A-1 Common Stock on NYSE following the Business Combination;

•        changes to the proposed structure of the Business Combination that may be required or appropriate as a result of applicable laws or regulations or as a condition to obtaining regulatory approval of the Business Combination;

•        changes in applicable laws or regulations;

•        the risk that the Business Combination disrupts current plans and operations;

•        the ability to recognize the anticipated benefits of the Business Combination, which may be affected by, among other things, competition, and the ability of the combined company to grow and manage growth profitably;

•        the financial and business performance of Quantum Space, including Quantum Space’s anticipated results from operations in future periods;

•        the amount of redemptions by Public Shareholders being greater than expected, which may reduce the cash in the Trust Account available to New Quantum Space upon the consummation of the Business Combination;

•        costs related to the Business Combination;

•        the need to obtain and sustain governmental permits and approvals;

•        failure to comply with applicable anti-corruption, anti-bribery, anti-money laundering and similar laws and regulations;

•        possible litigation risks, including permit disputes (including in respect of access and/or validity of tenure), environmental claims, occupational health and safety claims and employee claims;

•        any infringement of the intellectual property rights of third parties;

•        failure to adequately protect intellectual property rights;

•        issue with information technology systems, including cyber threats, disruption, damage and failure;

•        use of resources and management attention related to the requirements of being a public company in the United States; and

•        other risks and uncertainties indicated in this proxy statement/prospectus, including those set forth under the section entitled “Risk Factors” beginning on page 36 of this proxy statement/prospectus.

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QUESTIONS AND ANSWERS FOR SHAREHOLDERS

The questions and answers below highlight only selected information from this document and only briefly address some commonly asked questions about the proposals to be presented at the extraordinary general meeting, including with respect to the Business Combination. The following questions and answers do not include all the information that is important to Inflection Point’s shareholders. Inflection Point urges shareholders to read this proxy statement/prospectus, including the Annexes and the other documents referred to herein, carefully and in their entirety to fully understand the Business Combination and the voting procedures for the extraordinary general meeting, which will be held at [•], Eastern Time, on [•], 2026, at the offices of White & Case LLP located at 1221 Avenue of the Americas, New York, NY 10020, and virtually via live webcast. To participate in the extraordinary general meeting online, visit https://www.cstproxy.com/inflectionpointacquisitionVI/2026 and enter the 12-digit control number included on your proxy card. If you hold your shares through a bank, broker or other nominee, you will need to take additional steps to participate in the extraordinary general meeting, as described in this proxy statement/prospectus.

Q.     Why am I receiving this proxy statement/prospectus?

A.     Inflection Point shareholders are being asked to consider and vote upon, among other proposals, a proposal to approve the Business Combination Agreement and approve the Business Combination. The Business Combination Agreement provides that, among other things, following the Domestication of Inflection Point to Delaware as described below, Merger Sub will merge with and into Inflection Point, with Inflection Point surviving as a wholly owned subsidiary of PubCo, and following the contribution of certain Quantum Space equity securities to PubCo, substantially all of the assets in the business of the combined company will be held by Quantum Space OpCo and its subsidiaries, in accordance with the terms and subject to the conditions of the Business Combination Agreement as more fully described elsewhere in this proxy statement/prospectus. See the section of this proxy statement/prospectus entitled “Proposal No. 1 — The Business Combination Proposal” for more detail.

A copy of the Business Combination Agreement is attached to this proxy statement/prospectus as Annex A, which is incorporated by reference into this proxy statement/prospectus, and you are encouraged to read it in its entirety.

In connection with the completion of the Business Combination, Inflection Point will provide its Public Shareholders the opportunity to redeem their Public Shares on the terms and conditions set forth in the Business Combination Agreement and Inflection Point’s governing documents. Inflection Point will complete the Redemption of properly tendered Public Shares at least one Business Day prior to the Domestication. As a condition to, and at least one Business Day prior to the Closing, Inflection Point will change its jurisdiction of incorporation by deregistering from the Register of Companies in the Cayman Islands as a Cayman Islands exempted company by way of continuation out of the Cayman Islands under Section 206 of the Companies Act and domesticating as a corporation under Section 388 of the DGCL, pursuant to which Inflection Point’s jurisdiction of incorporation will be changed from the Cayman Islands to the State of Delaware. Immediately prior to the Domestication, pursuant to the Cayman Constitutional Documents and the Sponsor Support Agreement, the Inflection Point Class B Shareholders will elect to convert each Inflection Point Class B Share, on a one-for-one basis, into an Inflection Point Class A Share. Immediately following such conversion, in connection with the Domestication, (i) each of the then issued and outstanding Inflection Point Class A Shares will convert automatically, on a one-for-one basis, into one share of Post-Domestication Inflection Point Common Stock; (ii) each of the then issued and outstanding Inflection Point Warrants will convert automatically into a Post-Domestication Warrant; and (iii) each of the then issued and outstanding Inflection Point Units consisting of one Inflection Point Class A Share and one-third of one Inflection Point Warrant will be cancelled and will thereafter entitle the holder thereof to one share of Post-Domestication Inflection Point Common Stock and one-third of one Post-Domestication Warrant. See the section of this proxy statement/prospectus entitled “The Domestication Proposal” for additional information.

THE VOTE OF INFLECTION POINT’S SHAREHOLDERS IS IMPORTANT. SHAREHOLDERS ARE ENCOURAGED TO VOTE AS SOON AS POSSIBLE AFTER CAREFULLY REVIEWING THIS PROXY STATEMENT/PROSPECTUS, INCLUDING THE ANNEXES AND THE ACCOMPANYING FINANCIAL STATEMENTS OF INFLECTION POINT AND QUANTUM SPACE, CAREFULLY AND IN ITS ENTIRETY.

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Q.     What proposals are shareholders of Inflection Point being asked to vote upon?

A.     At the extraordinary general meeting, Inflection Point is asking holders of Inflection Point Ordinary Shares to consider and vote upon:

•        The Business Combination Proposal;

•        The Domestication Proposal;

•        The Merger Proposal;

•        The Domesticated Organizational Documents Proposal;

•        The Advisory Organizational Documents Proposals;

•        The Director Election Proposal;

•        The New Quantum Space Incentive Plan Proposal;

•        The New Quantum Space Employee Stock Purchase Plan Proposal; and

•        The Adjournment Proposal, if presented.

If Inflection Point’s shareholders do not approve each of the Condition Precedent Proposals, then unless certain conditions in the Business Combination Agreement are waived by the applicable parties to the Business Combination Agreement, the Business Combination Agreement could be terminated, and the Business Combination may not be consummated. See the sections of this proxy statement/prospectus entitled “Proposal No. 1 — The Business Combination Proposal,” “Proposal No. 2 — The Domestication Proposal,” “Proposal No. 3 — The Merger Proposal,” “Proposal No. 4 — The Domesticated Organizational Documents Proposal,” “Proposal No. 6 — The Director Election Proposal,” “Proposal No. 7 — The New Quantum Space Incentive Plan Proposal” and “Proposal No. 8 — The New Quantum Space Employee Stock Purchase Plan Proposal.”

Inflection Point will hold the extraordinary general meeting to consider and vote upon these proposals. This proxy statement/prospectus contains important information about the Business Combination and the other matters to be acted upon at the extraordinary general meeting. Shareholders of Inflection Point should read it carefully.

After careful consideration, the Inflection Point Board has determined that each of (a) the Business Combination Proposal, (b) the Domestication Proposal, (c) the Merger Proposal, (d) the Domesticated Organizational Documents Proposal, (e) the Advisory Organizational Documents Proposals, (f) the Director Election Proposal, (g) the New Quantum Space Incentive Plan Proposal, (h) the New Quantum Space Employee Stock Purchase Plan Proposal and (i) the Adjournment Proposal, if presented, are in the best interests of Inflection Point and its shareholders and unanimously recommends that you vote or give instruction to vote “FOR” each of those proposals.

The existence of financial and personal interests of one or more of Inflection Point’s directors may result in a conflict of interest on the part of such director(s) between what he, she or they may believe is in the best interests of Inflection Point and its shareholders and what he, she or they may believe is best for himself, herself or themselves in determining to recommend that shareholders vote for the proposals. In addition, Inflection Point’s officers have interests in the Business Combination that may conflict with your interests as a shareholder. See the section of this proxy statement/prospectus entitled “Proposal No. 1 — The Business Combination Proposal — Interests of Certain Inflection Point Persons in the Business Combination” for a further discussion of these considerations.

Q.     Are the proposals conditioned on one another?

A.     Yes. The Business Combination is conditioned on the approval of each of the Condition Precedent Proposals at the extraordinary general meeting. Each of the Condition Precedent Proposals is cross-conditioned on the approval of each other Condition Precedent Proposal. The Advisory Organizational Documents Proposals and the Adjournment Proposal are not conditioned upon the approval of any other proposal.

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Q.     Why is Inflection Point proposing the Business Combination?

A.     Inflection Point was incorporated to effect a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination, with one or more businesses or entities.

Quantum Space, LLC is a Delaware limited liability company formed on May 19, 2021. Quantum Space is a company building the next generation of advanced maneuverable spacecraft to disrupt the orbital economy. Based on Inflection Point’s due diligence investigations of Quantum Space and the industry in which it operates, including the financial and other information provided by Quantum Space in the course of Inflection Point’s due diligence investigations, the Inflection Point Board believes that the Business Combination with Quantum Space is in the best interests of Inflection Point and its shareholders. However, there is no assurance of this. See “The Business Combination Proposal — Inflection Point Board’s Reasons for the Approval of the Business Combination” of this proxy statement/prospectus for additional information.

Although the Inflection Point Board believes that the Business Combination with Quantum Space presents a unique business combination opportunity and is in the best interests of Inflection Point and its shareholders, the Inflection Point Board did consider certain potentially material negative factors in arriving at that conclusion. These factors are discussed in greater detail in the section entitled “The Business Combination Proposal — Inflection Point Board’s Reasons for the Approval of the Business Combination,” of this proxy statement/prospectus as well as in the section of this proxy statement/prospectus entitled “Risk Factors — Risks Related to Quantum Space’s Business and Industry.”

Q:     What will happen in the Domestication?

A:     Inflection Point will, subject to obtaining the required shareholder approvals and at least one business day prior to the date of Closing, change its jurisdiction of incorporation by deregistering from the Register of Companies in the Cayman Islands as a Cayman Islands exempted company by way of continuation out of the Cayman Islands and continuing and domesticating as a corporation incorporated under the laws of the State of Delaware.

Subject to the satisfaction or waiver of the conditions of the Business Combination Agreement, including approval of Inflection Point’s shareholders, (a) immediately prior to the Domestication, pursuant to the Sponsor Support Agreement, the Inflection Point Class B Shareholders, will elect to convert each Founder Share, on a one-for-one basis, into an Inflection Point Class A Share; (b) in connection with the Domestication, (i) each of the then issued and outstanding Inflection Point Class A Shares will convert automatically, on a one-for-one basis, into shares of Post-Domestication Inflection Point Common Stock; (ii) each of the then issued and outstanding Inflection Point Warrants will convert automatically into a Post-Domestication Warrant; and (iii) each of the then issued and outstanding Inflection Point Units consisting of one Inflection Point Class A Share and one-third of one Inflection Point Warrant will be cancelled and will thereafter entitle the holder thereof to one share of Post-Domestication Inflection Point Common Stock and one-third of one Post-Domestication Warrant. See the section of this proxy statement/prospectus entitled “Proposal No. 2 — The Domestication Proposal.”

Q:     What will securityholders of Quantum Space receive in connection with the Business Combination?

A:     Immediately prior to the Closing, Quantum Space will effectuate the Recapitalization, pursuant to which, among other things, all outstanding equity securities of Quantum Space, other than the Pre-Funded Preferred Units and the Pre-Funded Warrants issued to the Pre-Funded Investors in the Pre-Funded Investment, will be converted or exchanged into Quantum Space Common Units, as set forth in the Seventh Amended and Restated Limited Liability Company Operating Agreement of Quantum Space, the result of which, among other things, will be that the Sellers will collectively hold Quantum Space Common Units as of immediately prior to the Closing.

Upon the terms and subject to the satisfaction or waiver of the conditions of the Business Combination Agreement, immediately following the Effective Time:

(1)    each Seller will contribute, assign, transfer, convey and deliver to New Quantum Space all or a portion of such Seller’s Quantum Space Common Units (as set forth in the Exchange Schedule), in exchange for shares of New Quantum Space Class A-1 Common Stock or New Quantum Space Class A-2 Common Stock, as applicable, on a one-for-one basis. Each Seller identified as a “Direct PubCo Seller” will contribute all of its Quantum Space Common Units to New Quantum Space, while each Seller identified as an “Up-C Seller” will contribute only the scheduled portion of its Quantum Space Common Units and retain the balance;

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(2)    simultaneously with the Seller Contributions, each Pre-Funded Investor will contribute all of such holder’s Pre-Funded Preferred Units to New Quantum Space in exchange for the Pre-Funded Preferred Unit Consideration;

(3)    simultaneously with the Seller Contributions and the Preferred Contributions, each Pre-Funded Investor that elects to do so will contribute its Pre-Funded Warrant(s) to New Quantum Space in exchange for New Quantum Space Series A Warrants; and

(4)    simultaneously with, or immediately following, the Seller Contributions, the Preferred Contributions and the Warrant Contributions, each Closing PIPE Investor will purchase, and New Quantum Space will issue and sell to such Closing PIPE Investor, Series A Preferred Stock and New Quantum Space Series A Warrants subscribed for by such PIPE Investor in accordance with the applicable Series A SPA.

Pursuant to the Business Combination Agreement, the Aggregate Consideration to be paid to the Quantum Space Equity Holders (other than the holders of the Pre-Funded Preferred Units and the Pre-Funded Warrants in respect of those securities) in respect of the transactions contemplated by the Business Combination, a number of Quantum Space Common Units and shares of New Quantum Space Class A Common Stock equal, in the aggregate, to the quotient of (a) $600,000,000, divided by (b) the per-share redemption price applicable to an Inflection Point Class A Share elected to be redeemed, as calculated in accordance with the Investment Management Trust Agreement and Inflection Point’s amended and restated memorandum and articles of association. For the avoidance of doubt, the paired non-economic voting shares of New Quantum Space Class B-1 Common Stock and New Quantum Space Class B-2 Common Stock purchased by Up-C Sellers shall not constitute Aggregate Consideration.

The consideration to be paid in, or in connection with, the Business Combination to each holder of a Pre-Funded Preferred Unit shall be a number of shares of Series A Preferred Stock equal to the quotient of (i) the aggregate Series B preference amount of such holder’s Pre-Funded Preferred Units, divided by (ii) $12.00, as may be adjusted pursuant to the terms and conditions of such Pre-Funded Preferred Units (with respect to the Pre-Funded Preferred Units sold pursuant to the Pre-Funded SPAs).

Q:     What are the reasons for the structure and timing of the Business Combination?

A:     Inflection Point was incorporated for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization, merger or other similar business combination with one or more businesses or entities. Following the consummation of Inflection Point’s IPO, the Sponsor and management team consisting of Michael Blitzer, Kevin Shannon and Adam Saks evaluated numerous opportunities across industries and verticals, predominately focused on North American and European businesses in disruptive growth sectors, and entered into confidentiality agreements with multiple targets to facilitate due diligence. Mr. Blitzer, Mr. Shannon and Mr. Saks conducted an expansive search process informed by the investing, operating, and transaction experience of the Inflection Point platform. From the time of Inflection Point’s IPO, through May 8, 2026, when Inflection Point entered into a letter of intent with Quantum Space, the team reviewed more than thirteen acquisition opportunities, executed approximately eight non-disclosure agreements, and delivered three initial draft letters of intent, including the proposal to Quantum Space. Inflection Point ultimately determined not to proceed with the other potential acquisition opportunities based on, among other factors, the fact that Inflection Point could not come to an agreement with the other counterparties on the economic terms for a potential transaction. Following extensive due diligence conducted by Inflection Point’s management and its advisors, and following detailed discussions with Quantum Space, Inflection Point concluded that Quantum Space represented a uniquely compelling opportunity for Inflection Point and its shareholders.

Inflection Point and Quantum Space pursued the Pre-Funded PIPE Investment and the Closing PIPE Investments in order to provide additional capital to fund Quantum Space’s operations, research and development, and administration before and after the Business Combination.

In connection with the transactions contemplated by the Business Combination Agreement, on the Signing Date, Quantum Space entered into the Pre-Funded SPAs with the Pre-Funded Investors. Pursuant to the Pre-Funded SPAs, the Pre-Funded Investors agreed, among other things, to purchase, and Quantum Space issued and sold, an aggregate of 5,882,352 Pre-Funded Preferred Units and 5,882,352 Pre-Funded Warrants, substantially concurrently with the execution and delivery of the Business Combination Agreement for an aggregate purchase price of approximately $60 million.

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Also on the Signing Date, PubCo, Quantum Space and the Closing PIPE Investors entered into the Series A SPAs. Pursuant to the Series A SPAs, the Closing PIPE Investors have agreed, among other things, to purchase, at Closing, (i) 19,999,994 shares of New Quantum Space Series A Preferred Stock, having the rights, preferences and privileges set forth in the Certificate of Designation and (ii) Preferred Investor Warrants to purchase an aggregate of 19,999,994 shares of New Quantum Space Class A-1 Common Stock, for an aggregate purchase price of approximately $240 million. Each share of New Quantum Space Series A Preferred Stock will have a stated value of $12.00.

As contemplated by the Business Combination Agreement, the structure and timing of the Business Combination, Pre-Funded Investment and Closing PIPE Investment are consistent with common practice in initial business combination transactions consummated by special purpose acquisition companies. In addition, the timing for the consummation of the Business Combination provided for in the Business Combination Agreement, Pre-Funded SPAs and Series A SPAs, which was effectively as soon as reasonably practicable following the execution of the Business Combination Agreement, was determined and agreed by the parties in light of general business considerations weighing in favor of consummating the transaction promptly.

For more information, see “Proposal No. 1 — The Business Combination Proposal — Background of the Business Combination.”

Q.     What equity stake will current Inflection Point securityholders and Quantum Space Equity Holders hold in New Quantum Space immediately after the consummation of the Business Combination?

The following summarizes the pro forma shares outstanding of New Quantum Space Common Stock and Series A Preferred Stock (on an as-converted to New Quantum Space Class A-1 Common Stock basis as of the Closing Date) under the three redemption scenarios, on an as-converted basis, excluding the potential dilutive effect of warrants to purchase shares of New Quantum Space Class A-1 Common Stock:

____________

(1)      Assumes that no Public Shareholders exercise redemption rights with respect to their Public Shares for a pro rata share of the funds in the Trust Account.

(2)      Assumes that holders of 50% of the Public Shares, 12,650,000 Public Shares, exercise their redemption rights for an aggregate payment of approximately $127.4 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026.

(3)      Assumes that holders of 100% of the Public Shares, 25,300,000 Public Shares, exercise their redemption rights for an aggregate payment of approximately $254.8 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026.

(4)      Consists of 8,433,333 shares of New Quantum Space Class A-1 Common Stock issued upon conversion of Founder Shares.

(5)      Consists of shares of New Quantum Space Class A-1 Common Stock issuable upon conversion of 6,211,119 shares of Series A Preferred Stock to be issued upon conversion of Pre-Funded Preferred Units sold in the Pre-Funded Investment (taking into account accrued payment-in-kind dividends through November 25, 2026).

(6)      Consists of 19,999,994 shares of New Quantum Space Class A-1 Common Stock issuable upon conversion of shares of Series A Preferred Stock to be issued pursuant to the Series A SPAs.

(7)     Based on the Aggregate Consideration of $600 million divided by the estimated per-share Redemption Price of approximately $10.07 per share from the Trust Account based on funds in the Trust Account as of June 30, 2026. Consists of (i) 27,942,248 shares of New Quantum Space Class A-1 Common Stock, (ii) 316,393 shares of New Quantum Space Class A-2 Common Stock and (iii) 31,322,858 shares of New Quantum Space Class B-2 Common Stock (non-economic, paired with retained Quantum Space Common Units). The Quantum Space Equity Holders include holders receiving shares through the Up-C

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structure, whereby Up-C Sellers retain 99% of their Quantum Space Common Units paired with shares of New Quantum Space Class B-2 Common Stock (carrying ten votes per share) and contribute 1% in exchange for shares of New Quantum Space Class A-2 Common Stock (carrying ten votes per share).

The following summarizes the pro forma shares outstanding of New Quantum Space Common Stock on a fully diluted basis, assuming the exercise of all New Quantum Space Warrants and New Quantum Space Series A Warrants to purchase shares of New Quantum Space Class A-1 Common Stock:

The following summarizes the pro forma shares outstanding of New Quantum Space Common Stock on a fully diluted basis, assuming the exercise of all New Quantum Space Warrants and New Quantum Space Series A Warrants to purchase shares of New Quantum Space Class A-1 Common Stock, and also accounting for the Founder Incentive Arrangement providing for performance-based equity awards based on an intended aggregate value equal to 9,000,000 shares of New Quantum Space Common Stock as of the Closing.

____________

(1)      Assumes that no Public Shareholders exercise redemption rights with respect to their Public Shares for a pro rata share of the funds in the Trust Account.

(2)      Assumes that holders of 50% of the Public Shares, 12,650,000 Public Shares, exercise their redemption rights for an aggregate payment of approximately $127.4 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026.

(3)      Assumes that holders of 100% of the Public Shares, 25,300,000 Public Shares, exercise their redemption rights for an aggregate payment of approximately $254.8 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026.

(7)     Based on the Aggregate Consideration of $600 million divided by the estimated per-share Redemption Price of approximately $10.07 per share from the Trust Account based on funds in the Trust Account as of June 30, 2026. Consists of (i) 27,942,248 shares of New Quantum Space Class A-1 Common Stock, (ii) 316,393 shares of New Quantum Space Class A-2 Common Stock and (iii) 31,322,858 shares of New Quantum Space Class B-2 Common Stock (non-economic, paired with retained

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Quantum Space Common Units). The Quantum Space Equity Holders include holders receiving shares through the Up-C structure, whereby Up-C Sellers retain 99% of their Quantum Space Common Units paired with shares of New Quantum Space Class B-2 Common Stock (carrying ten votes per share) and contribute 1% in exchange for shares of New Quantum Space Class A-2 Common Stock (carrying ten votes per share).

(8)      Consists of New Quantum Space Warrants held by public warrant holders, each exercisable for one share of New Quantum Space Class A-1 Common Stock.

(9)      Consists of (i) 8,433,333 shares of New Quantum Space Class A-1 Common Stock issued upon conversion of Founder Shares, and (ii) 5,000,000 New Quantum Space Warrants (converted from Private Placement Warrants purchased by the Sponsor at $1.00 per warrant).

(10)    Consists of (i) 6,211,119 shares of New Quantum Space Class A-1 Common Stock issuable upon conversion of Series A Preferred Stock issued in exchange for Pre-Funded Preferred Units (taking into account accrued payment-in-kind dividends through November 25, 2026), and (ii) New Quantum Space Series A Warrants exercisable for 5,882,352 shares of New Quantum Space Class A-1 Common Stock issued in exchange for Pre-Funded Warrants.

(11)    Consists of (i) 19,999,994 shares of New Quantum Space Class A-1 Common Stock issuable upon conversion of shares of Series A Preferred Stock issued pursuant to the Series A SPAs, and (ii) New Quantum Space Series A Warrants exercisable for 19,999,994 shares of New Quantum Space Class A-1 Common Stock issued pursuant to the Series A SPAs.

(12)    Consists of 4,500,000 Incentive Units to be issued to Dr. Ghaffarian following the Closing pursuant to the Founder Incentive Arrangement, which are intended to constitute “profits interests” for U.S. federal income tax purposes. Upon the earlier of (a) the date that the Incentive Units have fully vested and (b) the Performance Period End Date, each vested Quantum Space Incentive Unit will automatically convert into a fraction (no greater than one) of a Quantum Space Common Unit in accordance with the terms of the A&R Operating Agreement. See “Interests of Quantum Space’s Directors and Executive Officers in the Business Combination — Founder Incentive Arrangement.”

(13)    Consists of 4,500,000 restricted shares of New Quantum Space Class A-1 Common Stock, subject to the same performance-based vesting conditions applicable to the Incentive Units as described under “Interests of Quantum Space’s Directors and Executive Officers in the Business Combination — Founder Incentive Arrangement.”

(14)    Consists of 2,400,000 New Quantum Space Warrants (converted from Private Placement Warrants held by the IPO underwriter).

For diagrams that illustrate in simplified terms the current structure of Inflection Point and Quantum Space and the expected structure of New Quantum Space immediately following the Closing, see “Summary of the Proxy Statement/Prospectus — The Proposals to be Submitted at the Extraordinary General Meeting — The Business Combination Proposal — Up-C Structure and Tax Receivable Agreement.”

Q.     What is the effective purchase price attributed to the New Quantum Space Common Stock to be received by the Public Shareholders, the Sponsor, and the Quantum Space stockholders at Closing?

A.      Pursuant to the Business Combination Agreement, Public Shareholders who do not redeem their Public Shares will receive one share of New Quantum Space Common Stock for each Public Share held by them immediately prior to the Merger. While Inflection Point cannot be certain of the price such Public Shareholders paid for their Public Shares, assuming they purchased their Public Shares for $10.00 per share, which was the price of the Inflection Point Units sold in Inflection Point’s IPO, the effective purchase price paid per share of New Quantum Space Common Stock issued to each Public Shareholder at Closing would be $10.00. In connection with Inflection Point’s IPO, the Sponsor paid an aggregate of $25,000 for the Founder Shares, or approximately $0.003 per share. In connection with the Business Combination, an aggregate of 8,433,333 Founder Shares held by the Sponsor will be voluntarily converted on a one-for-one basis into Inflection Point Class A Shares immediately prior to the Domestication, which will then automatically convert at the effective time of the Domestication into an equal number of shares of Post-Domestication Inflection Point Common Stock, which will then convert at the Effective Time into the right to receive an equal number of shares of New Quantum Space Class A-1 Common Stock, valued at approximately $10.04 per share based on the closing price per Inflection Point Class A Share on October 21, 2026. The Sponsor also purchased 5,000,000 Private Placement Warrants at a price of $1.00 per warrant in a private placement that occurred simultaneously with the closing of the Inflection Point IPO; such Private Placement Warrants will automatically be assumed by New Quantum Space and shall thereafter constitute a New Quantum Space Warrant. As a result of the low price the Sponsor paid for the Founder Shares, the Sponsor may realize a positive rate of return on its investment in the Founder Shares even if the market price per share of New Quantum Space Common Stock is below $10.00 per share after Closing, in which case the Public Shareholders may experience a negative rate of return on their investment. Based on the closing price of $10.04 per Inflection Point Class A Share on October 21, 2026, the Sponsor may receive potential profits of approximately $10.04 per Founder Share, and accordingly may make a substantial profit on its investment in the Founder Shares at a time when shares of New Quantum Space Common Stock may have lost significant value. On the other hand, if Inflection Point liquidates without completing a business combination during the completion window, the Sponsor will lose its investment in Inflection Point.

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For information about conflicts of interest with respect to the Sponsor, see “Proposal No. 1 — The Business Combination Proposal — Interests of Certain Inflection Point Persons in the Business Combination.” For information about the compensation of the Sponsor and our officers and directors, see “Information About Inflection Point — Executive and Director Compensation.” For information about the securities owned by the Sponsor, see “Beneficial Ownership of Securities” and “Certain Relationships and Related Persons Transactions.”

Q.     Who is the Sponsor?

A.     In January 2021, members of Inflection Point’s management team founded Inflection Point Acquisition Corp. (“IPAX”), a special purpose acquisition company formed for substantially similar purposes as Inflection Point. IPAX completed its initial public offering in September 2021, in which it sold 32,975,000 units, each consisting of one share of IPAX common stock and one-half of one warrant to purchase one share of IPAX common stock, for an offering price of $10.00 per unit, generating aggregate proceeds of $329,750,000. On September 16, 2022, IPAX announced its business combination with Intuitive Machines (“LUNR”), a diversified space exploration, infrastructure, and services company with marquee contracts supporting NASA’s $93 billion Artemis program. Prior to the extraordinary general meeting of IPAX shareholders to approve the business combination with LUNR, holders of 27,481,818 of IPAX Class A ordinary shares, or 83.34% of the outstanding IPAX Class A ordinary shares and 89.37% of the outstanding IPAX Class A ordinary shares not held by affiliates of IPAX, exercised their right to redeem those shares for cash at a price of approximately $10.1843 per share, for an aggregate of $279,884,313.81. The transaction with LUNR closed on February 13, 2023, and began trading on Nasdaq on February 14, 2023 under the ticker “LUNR.” Mr. Blitzer and Mr. Shannon believe LUNR represented a high-quality, public-ready company with a history of significant revenue growth and believe the deal’s valuation was attractive and the significant $50 million capital commitment from the sponsor supporting the transaction was a main differentiator. IPAX supported the transaction with extensive due diligence, significant investor outreach, and comprehensive planning, including a detailed media plan and retaining due diligence and capital markets advisors.

LUNR’s shares of Class A common stock and its warrants are listed on Nasdaq under the symbols “LUNR” and “LUNRW,” respectively. On October 21, 2026, the closing sale price of shares of the Class A common stock of LUNR was $10.91. Under the terms of the warrant agreement governing LUNR’s warrants, LUNR had the right to redeem all outstanding warrants if the last sales price of the Class A common stock was at least $18.00 per share for any 20 trading days within any 30-day trading period ending on the third business day prior to the date on which a notice of redemption is given. The last sales price of the Class A common stock was at least $18.00 per share on each of 20 trading days within the 30-day trading period ending on January 30, 2025. Accordingly, LUNR redeemed the warrants effective as of March 6, 2025.

In March 2023, Mr. Blitzer and Mr. Shannon founded Inflection Point Acquisition Corp. II (“IPXX”), a special purpose acquisition company formed for substantially similar purposes as Inflection Point. IPXX completed its initial public offering in May 2023, in which it sold 25,000,000 units, each consisting of one Class A ordinary share of IPXX and one-half of one warrant to purchase one share of IPXX common stock, for an offering price of $10.00 per unit, generating aggregate proceeds of $250,000,000. On August 21, 2024, IPXX entered into a business combination with USA Rare Earth, LLC (“USARE”), a company whose mission is to establish a vertically integrated, domestic rare earth magnet supply chain that supports the future state of energy, mobility, and national security in the United States. USARE is developing a NdFeB magnet manufacturing plant in the United States, and establishing domestic rare earth and critical minerals supply, extraction, and processing capabilities to supply its magnet manufacturing plant and market surplus materials to third parties. IPXX held a vote on November 18, 2024 to extend the date by which IPXX must complete an initial business combination from November 30, 2024 to August 21, 2025. In connection with such extension, holders of 22,794,651 Class A ordinary shares of IPXX, or 91.18% of the outstanding IPXX public shares, exercised their right to redeem those shares for cash at a price of approximately $10.83 per share, for an aggregate of $246.9 million. Prior to the extraordinary general meeting of IPXX shareholders to approve the business combination with USARE, holders of 128,140 IPXX Class A ordinary shares, or 5.8% of the outstanding IPXX Class A ordinary shares, exercised their right to redeem those shares for cash at a price of approximately $11.00 per share, for an aggregate of $1,409,139.27. The transaction with USARE closed on March 13, 2025 and began trading on March 14, 2025 under the ticker “USAR.” Mr. Blitzer and Mr. Shannon believe USARE represented a promising opportunity

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in an industry with significant tailwinds and believed the deal’s valuation was attractive and the significant $31.7 million capital commitment from affiliates of the sponsor and their network of investors supporting the transaction was a main differentiator.

USARE’s common stock is listed on Nasdaq under the symbol “USAR.” On October 21, 2026, the closing sale price of shares of the common stock of USARE was $10.23.

In January 2024, Mr. Blitzer and Mr. Shannon founded Inflection Point Acquisition Corp. III (“IPCX”), a blank check company formed for substantially similar purposes as our company. IPCX completed its initial public offering in April 2025, in which it sold 25,300,000 units, each consisting of one Class A ordinary share of IPCX and one right to receive one-tenth of one Class A ordinary share, for an offering price of $10.00 per unit, generating aggregate proceeds of $253,000,000. On August 25, 2025, IPCX announced its business combination with A1R WATER, a global leader in atmospheric water generation. Prior to the extraordinary general meeting of IPCX shareholders to approve the business combination with A1R WATER, holders of 24,548,661 IPCX Class A ordinary shares, or 97.03% of the outstanding IPCX Class A ordinary shares, exercised their right to redeem those shares for cash at a price of approximately $10.4653 per share, for an aggregate of approximately $256.9 million. The transaction with A1R WATER closed on August 14, 2026, and began trading on Nasdaq on August 17, 2026 under the ticker “WATR.” We believe A1R WATER has built the foundation of a durable consumer business with differentiated technology, an experienced leadership team and a clear commercial path. The $96 million capital commitments from Inflection Point Fund, its network of investors and Southern Glazers Wine & Spirits, a premier beverage distributor and commercial partner of A1R WATER, position A1R WATER to execute its business plan. There was no vote held to extend the date by which IPCX was required to complete its initial business combination because IPCX completed its initial business combination with A1R WATER within 24 months of its initial public offering.

A1R WATER’s ordinary shares are listed on Nasdaq under the symbol “WATR”. On October 21, 2026, the closing price of A1R WATER’s ordinary shares was $1.65.

In June 2024, Inflection Point Fund provided the risk capital to form Inflection Point Acquisition Corp. IV (f/k/a Bleichroeder Acquisition Corp. I, “IPDX”), a SPAC formed for substantially similar purposes as our company by a separate management team. IPDX completed its initial public offering in November 2024, in which it sold 25,000,000 units, each consisting of one Class A ordinary share of IPDX and one right to receive one-tenth of one Class A ordinary share of IPDX upon consummation of IPDX’s initial business combination, for an offering price of $10.00 per unit, generating aggregate gross proceeds of $250,000,000. IPF has an economic interest in approximately 60.1% of the founder shares and 100% of the private placement securities of IPDX. In July 2025, Messrs. Blitzer and Shannon were appointed as President and Chief Executive Officer, and Chief Operating Officer, respectively, of IPDX. Mr. Blitzer was also appointed to the board of directors. On August 14, 2025, IPDX announced a business combination agreement with Merlin Labs, Inc. (“MRLN”), a leading developer of assured, autonomous flight technology for defense customers. Prior to the extraordinary general meeting of IPDX shareholders to approve the business combination with MRLN, holders of 22,550,551 IPDX Class A ordinary shares, or 90.20% of the outstanding IPDX Class A ordinary shares exercised their right to redeem those shares for cash at a price of approximately $10.5591 per share, for an aggregate of approximately $238.1 million. The transaction with MRLN closed on March 16, 2026, and began trading on Nasdaq on March 17, 2026 under the ticker “MRLN.” We believe MRLN represents an innovative company with significant potential to change the nature of flight. We believe the deal’s valuation was attractive and the significant $140 million capital commitments from IPF and its network of investors supporting the transaction was a main differentiator. There was no vote held to extend the date by which IPDX was required to complete its initial business combination because IPDX completed its initial business combination with MRLN within 24 months of its initial public offering.

MRLN’s common stock is listed on Nasdaq under the symbol “MRLN.” On October 21, 2026, the closing prices of MRLN’s common stock was $0.98.

In May 2024, a separate management team formed a special purpose acquisition company, Maywood Acquisition Corp. (“IPEX”) for substantially similar purposes as our company. IPEX completed its initial public offering in February 2025, in which it sold 8,625,000 units, each consisting of one IPEX Class A ordinary share and one right to receive one-fifth of one IPEX Class A ordinary share upon consummation of IPEX’s initial business

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combination, for an offering price of $10.00 per unit, generating aggregate gross proceeds of $86,250,000. In September 2025, IPF acquired control of IPEX, as well as approximately 33% of the founder shares of IPEX. In connection with such acquisition, Messrs. Blitzer and Shannon were appointed as Chairman and Chief Executive Officer, and Chief Operating Officer, respectively, of IPEX. Mr. Blitzer was also appointed to the board of directors. On October 14, 2025, IPEX announced a business combination agreement with GOWell Technology Limited (“GoWell”), a leading global innovator in well logging technologies. IPEX held a vote on August 12, 2026 to extend the date by which IPEX was required complete an initial business combination from August 14, 2026 to August 31, 2026, and permit the board of directors of IPEX to further extend such date up to four times in one month increments, to up to December 31, 2026. In connection with such extension, holders of 7,475,610 Class A ordinary shares of IPEX, or 86.67% of the outstanding IPEX public shares, exercised their right to redeem those shares for cash at a price of approximately $10.59 per share, for an aggregate of $79.2 million. The transaction with GoWell closed on September 25, 2026, and began trading on Nasdaq on September 28, 2026 under the ticker “GOW.”

GoWell’s ordinary shares are listed on Nasdaq under the symbol “GOW”, respectively. On October 21, 2026, the closing price of GoWell’s ordinary shares was $3.60.

In April 2025, a separate management team formed a special purpose acquisition company, Columbus Circle Capital Corp II (to be renamed Inflection Point Acquisition Corp. VII, (“IPXG”)), for substantially similar purposes as Inflection Point. IPXG completed its initial public offering in February 2026, in which it sold 23,000,000 units, each consisting of one Class A ordinary share of IPXG and one third of one warrant to purchase one IPXG Class A ordinary share, for an offering price of $10.00 per unit, generating aggregate gross proceeds of $230,000,000. In June 2026, in connection with an announced business combination agreement with Elroy Air, Inc. (“Elroy Air”), the initial management team and sponsor of IPXG partnered with IPAM, which has significant experience with negotiating and consummating de-SPAC transactions and which introduced IPXG and the sponsor to Elroy Air. In connection with such partnership, Messrs. Blitzer and Shannon were appointed as Chairman and Chief Executive Officer, respectively, of IPXG. Mr. Blitzer was also appointed to the board of directors. Elroy Air is a leading U.S.-based technology developer of autonomous heavy-cargo drones for defense, rapid response and commercial logistics. The transaction is expected to close in the fourth quarter of 2026.

IPXG’s units, Class A ordinary shares and warrants are listed on Nasdaq under the symbol “IPXGU,” “IPXG” and “IPXGW,” respectively. On October 21, 2026, the closing prices of its units, Class A ordinary shares and warrants were $10.76, $10.10 and $0.50, respectively.

In May 2026, members of our management team founded IPHX, a SPAC formed for substantially similar purposes as our company. IPFX completed its initial public offering in August 2026, in which it sold 28,750,000 units, each consisting of one Class A ordinary share of IPHX and one-third of one warrant to purchase one Class A ordinary share of IPHX, for an offering price of $10.00 per unit, generating aggregate proceeds of $287,500,000.

IPHX’s units are listed on Nasdaq under the symbol “IPHXU”. On October 21, 2026, the closing prices of its units was $9.98. Once the securities comprising IPHX’s units begin separate trading, IPXH’s Class A ordinary shares and warrants are expected to be listed on Nasdaq under the symbols “IPHX” and “IPHXW,” respectively.

Past performance by our management team, including with respect to IPAX, IPXX, IPCX, IPDX, IPEX, IPXG and IPHX is not a guarantee of success with respect to the Business Combination with Quantum Space. You should not rely on the historical record of the performance of our management team or businesses associated with them, including IPAX, IPXX, IPCX, IPDX, IPEX, IPXG and IPHX as indicative of our future performance of an investment in Inflection Point or New Quantum Space or the returns we will, or are likely to, generate going forward. For information about conflicts of interest with respect to the Sponsor, see “The Business Combination Proposal — Interests of Certain Inflection Point Persons in the Business Combination.” For information about the compensation of the Sponsor and our officers and directors, see “Information About Inflection Point — Executive and Director Compensation.” For information about the securities owned by the Sponsor, including transfer restrictions and required forfeitures, see “Beneficial Ownership of Securities” and “Certain Relationships and Related Person Transactions.”

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Q:     Did the Inflection Point Board obtain a third-party opinion in determining whether or not to proceed with the Business Combination?

A:     Yes. On June 6, 2026, the Inflection Point Board received an opinion from Newbridge as to (i) the fairness, as of such date, from a financial point of view, to the Inflection Point Unaffiliated Shareholders of the Aggregate Consideration to be paid by Inflection Point in the Business Combination, and (ii) whether the Business Combination has an aggregate fair market value of at least eighty percent (80.0%) of the value of the assets held in the Trust Account for the benefit of the Public Shareholders (excluding any deferred underwriters fees and taxes payable on the income earned on the Trust Account) at the time of the Business Combination Agreement, which was based on and subject to the assumptions made, procedures followed, matters considered and limitations and qualifications on and scope of the review undertaken by Newbridge, as set forth in such opinion, as more fully described in the subsection “The Business Combination — Opinion of Newbridge Securities Corporation.” A copy of Newbridge’s opinion is attached hereto as Annex F.

Q.     How has the announcement of the Business Combination affected the trading price of the Inflection Point Class A Shares?

A.     On June 5, 2026, the last trading date prior to the public announcement of the Business Combination, Inflection Point Units, Inflection Point Class A Shares and Inflection Point Warrants closed at $10.23, $10.00 and $0.78, respectively. As of August 11, 2026, the last practicable trading day immediately prior to the filing date of this proxy statement/prospectus, the closing price for each Inflection Point Unit, Inflection Point Class A Share and Inflection Point Warrant was $10.68, $10.11 and $1.33, respectively.

Q:     Are there material differences between my rights as an Inflection Point shareholder and my rights as a New Quantum Space stockholder?

A:     Yes, there are certain material differences between your rights as an Inflection Point shareholder and your rights as a New Quantum Space stockholder. Please read the sections entitled “Description of New Quantum Space Securities,” “Proposal No. 5 — The Advisory Organizational Documents Proposals,” including the comparison of the Cayman Constitutional Documents and the Proposed Organizational Documents and “Material Differences in the Rights of Quantum Space Security Holders Following the Business Combination,” and “Comparison of Shareholder Rights under Applicable Corporate Law Before and After Domestication.”

Q.     Will Inflection Point obtain new financing in connection with the Business Combination?

A.     PubCo will sell to the Closing PIPE Investors at Closing, an aggregate of (i) 19,999,994 shares of Series A Preferred Stock and (ii) New Quantum Space Series A Warrants to purchase an aggregate of 19,999,994 shares of New Quantum Space Class A-1 Common Stock, for an aggregate purchase price of $240 million.

Q.     Will Quantum Space obtain new financing in connection with the Business Combination?

A.     Yes. The Pre-Funded Investors purchased the Pre-Funded Preferred Units and the Pre-Funded Warrants for an aggregate purchase price of approximately $60 million, pursuant to the Pre-Funded SPAs.

See the section of this proxy statement/prospectus entitled “The Business Combination Proposal — Related Agreements — Pre-Funded SPAs and Series A SPA.”

Q.     Why is Inflection Point proposing the Domestication?

A.      The Inflection Point Board believes that there are significant advantages to New Quantum Space that will arise as a result of a change of Inflection Point’s domicile to the State of Delaware, including (a) the prominence, predictability and flexibility of the DGCL, (b) Delaware’s well-established principles of corporate governance and (c) the increased ability for Delaware corporations to attract and retain qualified directors. Further, the Inflection Point Board believes that any direct benefit that the DGCL provides to a corporation also indirectly benefits its stockholders, who are the owners of the corporation. Each of the foregoing are discussed in greater detail in the section of this proxy statement/prospectus entitled “The Domestication Proposal — Reasons for the Domestication.”

To effect the Domestication, Inflection Point will (a) file all applicable notices, declarations, affidavits, statements of assets and liabilities, shareholder approvals, undertakings and other documents required to be filed, pay all applicable fees required to be paid, and cause the satisfaction of all other conditions to deregistration required

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to be satisfied, in each case, under Section 206 of the Companies Act and in accordance therewith, and (b) file the Post-Domestication Charter and a certificate of corporate domestication with the Secretary of State of the State of Delaware, under which Inflection Point will be domesticated and continue as a Delaware corporation.

The approval of the Domestication Proposal is a condition to closing the Business Combination under the Business Combination Agreement. The approval of the Domestication Proposal requires a special resolution of the Inflection Point Class B Shareholders, being the affirmative vote of holders of at least two-thirds of the Inflection Point Class B Shares, who, being present in person or by proxy and entitled to vote at the extraordinary general meeting, vote at the extraordinary general meeting. The holders of Inflection Point Class A Shares will have no right to vote on the Domestication Proposal, in accordance with Article 49.2 of the Cayman Constitutional Documents.

Abstentions, while considered present for the purposes of establishing a quorum, will not count as votes cast at the extraordinary general meeting and will have the same effect as a vote against the Merger Proposal. Broker non-votes are not considered present for the purposes of establishing a quorum, will not count as votes cast at the extraordinary general meeting, and otherwise will have no effect on a particular proposal, assuming a valid quorum is established, except for the Merger Proposal. Broker non-votes will not be considered present for the purposes of establishing a quorum, will not count as a vote cast at the extraordinary general meeting and will therefore have the same effect as a vote against the Merger Proposal.

Q.     What amendments will be made to the Cayman Constitutional Documents?

A.     The consummation of the Business Combination is conditioned, among other things, on the Domestication. Accordingly, in addition to voting on the Business Combination, Inflection Point Class B Shareholders are also being asked to consider and vote upon the Domestication Proposal and the Domesticated Organizational Documents Proposal. Upon approval of the Domestication Proposal and the Domesticated Organizational Documents Proposal, the Cayman Constitutional Documents will be replaced, in each case, under the Companies Act, with the Proposed Charter and the Proposed Bylaws, in each case, under the DGCL, which differ materially from the Cayman Constitutional Documents, and those differences are discussed in greater detail in the sections entitled “The Domestication Proposal,” “The Domesticated Organizational Documents Proposal” and “The Advisory Organizational Documents Proposals.” The Domestication Proposal and the Domesticated Organizational Documents Proposal are being presented for approval by special resolution of the holders of the Inflection Point Class B Shares pursuant to Article 49.2 of the Cayman Constitutional Documents, and the Inflection Point Class A Shareholders will have no right to vote on those proposals.

Q.     How will the Domestication affect my Inflection Point Class A Shares, Inflection Point Warrants and Inflection Point Units?

A.      Immediately prior to the Domestication, pursuant to the Cayman Constitutional Documents and the Sponsor Support Agreement, the Inflection Point Class B Shareholders will elect to convert each Inflection Point Class B Share issued and outstanding into one Inflection Point Class A Share. Immediately following such conversion, in connection with the Domestication, (a) each Inflection Point Class A Share issued and outstanding immediately prior to the Domestication will automatically convert into one share of Post-Domestication Inflection Point Common Stock, (b) each of the then issued and outstanding Inflection Point Warrants will convert automatically, on a one-for-one basis, into Post-Domestication Warrants, and (c) each Inflection Point Unit issued and outstanding as of immediately prior to the Domestication will be cancelled and converted into one share of Post-Domestication Inflection Point Common Stock and one-third of one Post-Domestication Warrant, with any fractional Post-Domestication Warrants to be issued in connection with such separation rounded down to the nearest whole warrant.

Q.     What are the material U.S. federal income tax considerations of the Domestication?

A.     As discussed more fully under “Material U.S. Federal Income Tax Considerations” of this proxy statement/prospectus, whether the Domestication will qualify as an F Reorganization is not free from doubt due to the absence of direct guidance on the application of Section 368(a)(1)(F) of the Code to an entity that holds only investment-type assets. Inflection Point will receive an opinion of White & Case LLP, to be filed by amendment as Exhibit 8.1 to the registration statement of which this proxy statement/prospectus forms a part, that the Domestication should qualify as a reorganization within the meaning of Section 368(a)(1)(F) of the Code (an “F Reorganization”). Assuming that the Domestication so qualifies, and subject to the “passive

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foreign investment company” (“PFIC”) rules discussed below and under “Material U.S. Federal Income Tax Considerations — I. U.S. Holders — A. Tax Effects of the Domestication to U.S. Holders — 5. PFIC Considerations,” U.S. Holders of Inflection Point Class A Shares will be subject to Section 367(b) of the Code in connection with the Domestication and, as a result:

•        A U.S. Holder whose Inflection Point Class A Shares have a fair market value of less than $50,000 on the date of the Domestication and who, on the date of the Domestication, owns (actually or constructively) less than 10% of the total combined voting power of all classes of Inflection Point stock entitled to vote and less than 10% of the total value of all classes of Inflection Point stock generally will not recognize any income, gain or loss in connection with the Domestication.

•        A U.S. Holder whose Inflection Point Class A Shares have a fair market value of $50,000 or more on the date of the Domestication and who is not a 10% U.S. Shareholder generally will recognize gain (but not loss) on the exchange of Inflection Point Class A Shares for Post-Domestication Inflection Point Common Stock in the Domestication. As an alternative to recognizing gain, such U.S. Holder may file an election to include in income as a deemed dividend the “all earnings and profits amount” (as defined in the Treasury Regulations under Section 367 of the Code) attributable to its Inflection Point Class A Shares.

•        A U.S. Holder who, on the date of the Domestication, owns (actually or constructively) 10% or more of the total combined voting power of all classes of Inflection Point stock entitled to vote or 10% or more of the total value of all classes of Inflection Point stock (a “10% U.S. Shareholder”) generally will be required to include in income as a deemed dividend the “all earnings and profits amount” attributable to its Inflection Point Class A Shares as a result of the Domestication. Inflection Point does not expect to have significant cumulative earnings and profits on the date of the Domestication.

As discussed more fully under “Material U.S. Federal Income Tax Considerations — I. U.S. Holders — A. Tax Effects of the Domestication to U.S. Holders — 5. PFIC Considerations,” Inflection Point believes that it is likely classified as a PFIC for U.S. federal income tax purposes. If Inflection Point were classified as a PFIC for U.S. federal income tax purposes, then notwithstanding the U.S. federal income tax consequences of the Domestication discussed above, proposed Treasury Regulations under Section 1291(f) of the Code and certain other PFIC rules (which have retroactive effective dates), if finalized in their current form, generally would require a U.S. Holder to recognize gain (but not loss) on the exchange of Inflection Point Class A Shares or Inflection Point Warrants for Post-Domestication Inflection Point Common Stock or Post-Domestication Warrants, respectively, pursuant to the Domestication. Only in respect of the exchange of Inflection Point Class A Shares for Post-Domestication Inflection Point Common Stock, no such gain recognition would generally be required if such U.S. Holder has made a timely and effective QEF Election (or a QEF Election along with a purging election) or an MTM Election with respect to its Inflection Point Class A Shares. Any gain recognized under the PFIC rules would be taxable income, with the gain allocated ratably over the U.S. Holder’s holding period. The amount allocated to the current taxable year and any taxable year prior to the first taxable year in which Inflection Point was a PFIC would be included in the U.S. Holder’s gross income as ordinary income, and the amount allocated to each other prior taxable year would be taxed at the highest tax rate in effect for such year, with an interest charge applied to the resulting tax attributable to each such prior taxable year, in each case with no corresponding receipt of cash in the Domestication to cover the resulting tax liability. In addition, the proposed Treasury Regulations provide coordinating rules with Section 367(b), which affect the manner in which the rules under such other sections apply to transfers of PFIC stock. Under current law, no QEF Election or MTM Election may be made with respect to an option, which would include an Inflection Point Warrant.

Additionally, the Domestication may cause Non-U.S. Holders to become subject to U.S. federal income withholding taxes on any amounts treated as dividends paid in respect of such Non-U.S. Holder’s New Quantum Space Class A-1 Common Stock after the Domestication.

Although the redemptions of holders that exercise redemption rights with respect to Inflection Point Class A Shares will occur prior to the Domestication, it is possible that the IRS could assert that for U.S. federal income tax purposes such redemptions should be treated as occurring after the Domestication. If such redemptions are treated for U.S. federal income tax purposes as occurring after the Domestication, U.S. Holders and Non-U.S. Holders exercising redemption rights would still be subject to the potential tax consequences of the Domestication, and the determination of whether a U.S. Holder is a 10% U.S. Shareholder or is otherwise subject to Section 367 of the Code would be determined as if the redemptions had not yet occurred at the time of the

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Domestication. All holders considering exercising redemption rights are urged to consult their tax advisors regarding the possibility that the redemptions are treated for U.S. federal income tax purposes as occurring after the Domestication despite the redemptions occurring in form prior to the Domestication.

The tax consequences of the Domestication are complex and will depend on a holder’s particular circumstances. All holders are urged to consult their tax advisor regarding the tax consequences to them of the Domestication. For a more complete discussion, see “Material U.S. Federal Income Tax Considerations.”

Q.     What are the material U.S. federal income tax consequences of the Business Combination?

A.     The Business Combination is intended to be treated, as an integrated transaction, as (i) an exchange described in Section 351 of the Code (a “Section 351 Transaction”) and (ii) if certain conditions are met, with respect to the Merger, a “reorganization” within the meaning of Section 368(a) of the Code (a “Section 368(a) Reorganization”) with respect to the Merger. White & Case LLP intends to deliver an opinion, on the basis of facts, representations and assumptions and subject to the limitations and qualifications set forth or referred to in such opinion, that the Business Combination should qualify as a Section 351 Transaction. Counsel will not opine on whether the Merger qualifies as a Section 368(a) Reorganization, and the Closing is not conditioned on the receipt of any opinion regarding the U.S. federal income tax treatment of the Business Combination.

Assuming the Business Combination qualifies as a Section 351 Transaction or the Merger qualifies as a Section 368(a) Reorganization, holders of Inflection Point Class A Shares (through the merger of Merger Sub with and into Post-Domestication Inflection Point, with Post-Domestication Inflection Point surviving as a wholly-owned subsidiary of PubCo) generally will not recognize gain or loss on the exchange of their Post-Domestication Inflection Point Common Stock for New Quantum Space Class A-1 Common Stock.

Additionally, assuming the Business Combination qualifies as a Section 351 Transaction (irrespective of whether the Merger qualifies as a Section 368(a) Reorganization), Sellers that contribute Quantum Space Common Units to PubCo in exchange for New Quantum Space Class A-1 or Class A-2 Common Stock generally will not recognize gain or loss on such contribution, in each case subject to the discussion of Sections 751 and 752 of the Code (which may cause a Seller to recognize gain, and, in the case of an Up-C Seller, may cause the recognition of ordinary income) described more fully under “Material U.S. Federal Income Tax Considerations.”

The tax treatment of Post-Domestication Warrants in the Merger depends on whether the Merger qualifies solely as part of a Section 351 Transaction or also as a Section 368(a) Reorganization. If the Merger qualifies solely as part of a Section 351 Transaction (and not as a Section 368(a) Reorganization), a U.S. Holder that in the Merger only exchanges Post-Domestication Warrants for New Quantum Space Warrants (and does not also exchange any Post-Domestication Inflection Point Common Stock for New Quantum Space Class A-1 Common Stock in the Merger) generally will recognize gain or loss on the deemed exchange of Post-Domestication Warrants for New Quantum Space Warrants equal to the difference between the fair market value of the New Quantum Space Warrants received and such U.S. Holder’s adjusted tax basis in the Post-Domestication Warrants surrendered. If a U.S. Holder in the Merger exchanges both Post-Domestication Inflection Point Common Stock for New Quantum Space Class A-1 Common Stock and Post-Domestication Warrants for New Quantum Space Warrants, and the Merger qualifies solely as part of a Section 351 Transaction (and not as a Section 368(a) Reorganization), the New Quantum Space Warrants received by such U.S. Holder may be treated as taxable boot in the Section 351 Transaction, which could cause the U.S. Holder to recognize gain (but not loss) on the exchange of its Post-Domestication Inflection Point Common Stock for New Quantum Space Class A-1 Common Stock in an amount not exceeding the fair market value of the New Quantum Space Warrants received. If the Merger qualifies as a Section 368(a) Reorganization (whether or not the Merger also qualifies as part of a Section 351 Transaction), a U.S. Holder generally would not recognize gain or loss on the deemed exchange of Post-Domestication Warrants for New Quantum Space Warrants, and the holding period of the New Quantum Space Warrants would include the holding period of the Post-Domestication Warrants exchanged therefor (which, assuming the Domestication qualifies as an F Reorganization, generally will include the holding period of the Inflection Point Warrants from which the Post-Domestication Warrants were derived).

If the Business Combination fails to qualify as a Section 351 Transaction and the Merger fails to qualify as a Section 368(a) Reorganization (or, in the case of Sellers, if the Business Combination fails to qualify as a Section 351 Transaction, irrespective of whether the Merger qualifies as a Section 368(a) Reorganization),

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each transferor of property to PubCo generally would recognize gain or loss with respect to the property so contributed or exchanged in an amount equal to the difference between the fair market value of the New Quantum Space Securities received (plus, in the case of a Seller, the reduction in such Seller’s share of Quantum Space’s liabilities under Section 752) and such transferor’s adjusted tax basis in the property contributed or exchanged.

The U.S. federal income tax consequences of the Business Combination to a Non-U.S. Holder generally are expected to be similar to those described above for U.S. Holders, except that (i) the exchange of Post-Domestication Warrants for New Quantum Space Warrants generally is not expected to result in U.S. federal income tax to a Non-U.S. Holder unless (A) the gain, if any, is effectively connected with the conduct by the Non-U.S. Holder of a trade or business within the United States, (B) New Quantum Space is or has been a “United States real property holding corporation” at any relevant time, or (C) the Non-U.S. Holder is an individual who was present in the United States for 183 days or more in the taxable year of the Merger and certain other requirements are met, and (ii) because Quantum Space is treated as a partnership for U.S. federal income tax purposes, the contribution of Quantum Space Common Units by a Non-U.S. Holder is subject to additional partnership-specific rules that do not apply to a Non-U.S. Holder of Inflection Point Securities or New Quantum Space Securities, which rules are discussed further under “Material U.S. Federal Income Tax Considerations — II. Non-U.S. Holders — C. Tax Consequences of the Business Combination to Non-U.S. Holders.”

Neither Inflection Point nor Quantum Space has sought or intends to seek a ruling from the IRS with respect to the tax treatment of the Business Combination. The tax consequences of the Business Combination are complex and will depend on a holder’s particular circumstances. All holders are urged to consult their tax advisor regarding the tax consequences to them of the Business Combination. For a more complete discussion, see “Material U.S. Federal Income Tax Considerations — I. U.S. Holders — C. Tax Consequences of the Business Combination to U.S. Holders” and “Material U.S. Federal Income Tax Considerations — II. Non-U.S. Holders — C. Tax Consequences of the Business Combination to Non-U.S. Holders.”

Q.     Do I have redemption rights?

A.     If you are a Public Shareholder, you have the right to request that we redeem all or a portion of your Public Shares for cash provided that you follow the procedures and deadlines described elsewhere in this proxy statement/prospectus. Public Shareholders may elect to redeem all or a portion of the Public Shares held by them regardless of if or how they vote in respect of the Business Combination Proposal and regardless of whether they hold Public Shares on the Record Date. If you wish to exercise your redemption rights, please see the answer to the next question: “How do I exercise my redemption rights?”

Notwithstanding the foregoing, a Public Shareholder, together with any affiliate of such Public Shareholder or any other Person with whom such Public Shareholder is acting in concert or as a “group” (as defined in Section 13(d)(3) of the Exchange Act), will be restricted from redeeming its Public Shares with respect to more than an aggregate of 15% of the Public Shares. Accordingly, if a Public Shareholder, alone or acting in concert or as a group, seeks to redeem more than 15% of the Public Shares, then any such shares in excess of that 15% limit would not be redeemed for cash.

The Sponsor has agreed to waive its redemption rights with respect to all of the Founder Shares in connection with the consummation of the Business Combination. The Founder Shares will be excluded from the pro rata calculation used to determine the Redemption Price.

Q.     How do I exercise my redemption rights?

A.     If you are a Public Shareholder and wish to exercise your right to redeem the Public Shares, you must:

(a)     (i) hold Public Shares or (ii) hold Public Shares through Inflection Point Units and elect to separate your Inflection Point Units into the underlying Public Shares and Public Warrants prior to exercising your redemption rights with respect to the Public Shares;

(b)    submit a written request to Continental, including the legal name, phone number and address of the beneficial owner of the Public Shares for which redemption is requested, that Inflection Point redeem all or a portion of your Public Shares for cash; and

(c)     deliver your share certificates for Public Shares (if any) along with the redemption forms to Continental, physically or electronically through DTC.

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Public Shareholders must complete the procedures for electing to redeem their Public Shares in the manner described above prior to 5:00 p.m., Eastern Time, on [•], 2026 (two business days before the initial scheduled date of the extraordinary general meeting), in order for their Public Shares to be redeemed.

The address of Continental is listed under the question “Who can help answer my questions?” of this proxy statement/prospectus.

Public Shareholders will be entitled to request that their Public Shares be redeemed for the Redemption Price. For illustrative purposes, as of the Record Date, this would have amounted to approximately $[•] per issued and outstanding Public Share. However, the proceeds deposited in the Trust Account could become subject to the claims of Inflection Point’s creditors, if any, which could have priority over the claims of the Public Shareholders. Therefore, the per share distribution from the Trust Account in such a situation may be less than originally expected due to such claims. Whether you vote, and if you do vote, how you vote, on any proposal, including the Business Combination Proposal, will have no impact on the amount you will receive upon exercise of your redemption rights. It is expected that the funds to be distributed to Public Shareholders electing to redeem their Public Shares will be distributed promptly after the consummation of the Business Combination.

Any request for redemption, once made, may not be withdrawn unless the directors of Inflection Point determine (in their sole discretion) to permit the withdrawal of such redemption request (which they may do in whole or in part). If a holder of a Public Share delivers its share certificates (if any) along with the redemption forms in connection with an election of its redemption and subsequently decides prior to the applicable date not to elect to exercise such rights, it may request that Inflection Point permit the withdrawal of the request for redemption and instruct Continental, to return the share certificates (physically or electronically). The holder can make such request by contacting Continental, at the address or email address listed in this proxy statement/prospectus.

Any corrected or changed written exercise of redemption rights must be received by Continental at least two business days prior to the initial scheduled date of the extraordinary general meeting. No request for redemption will be honored unless the directors of Inflection Point determine to permit such withdrawal and the holder’s certificates for Public Shares (if any) along with the redemption forms have been delivered (either physically or electronically) to Continental, at least two business days prior to the initial scheduled date of the extraordinary general meeting.

If a Public Shareholder properly makes a request for redemption and the certificates for Public Shares (if any) along with the redemption forms are delivered as described above, then, if the Business Combination is consummated, Inflection Point will redeem the Public Shares for a per-share redemption price, payable in cash, equal to the aggregate amount then deposited in the Trust Account, calculated as of two business days prior to the consummation of the Business Combination, including interest earned on the Trust Account (which interest shall be net of taxes payable) divided by the number of then issued Public Shares. If the Business Combination is abandoned, the Public Shares will be returned to the respective holder, broker or bank.

If you are a Public Shareholder and you exercise your redemption rights, such exercise will not result in the loss of any Public Warrants that you may hold.

Q.     If I am a Public Warrants Holder, can I exercise redemption rights with respect to my Public Warrants?

A.     No. The Public Warrants holders have no redemption rights with respect to such securities.

Assuming that no more than 12,650,000 Public Shares, representing 50% of the outstanding Public Shares issued in connection with the IPO, are redeemed for an aggregate payment of approximately $[•] million from the Trust Account (based on the approximate balance of the Trust Account as of the Record Date) in connection with the Business Combination, which is a potential amount of redemptions, and assuming that each redeeming Public Shareholder holds one-third of one Public Warrant for each Public Share being redeemed and using the closing warrant price on Nasdaq of $0.92 as of June 5, 2026 (the last trading day before the announcement of the Business Combination Agreement), the aggregate fair value of Public Warrants that can be retained by redeeming Public Shareholders is approximately $3.9 million. Assuming the Maximum Redemption Scenario, resulting in 25,300,000 Public Shares redeemed for an aggregate payment of approximately $[•] million from the Trust Account (based on the approximate balance of the Trust Account as of the Record Date) in connection with the Business Combination, and assuming that each redeeming Public Shareholder holds one-third of one

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Public Warrant for each Public Share being redeemed and using the closing warrant price on Nasdaq of $0.92 as of June 5, 2026 (the last trading day before the announcement of the Business Combination Agreement), the aggregate fair value of Public Warrants that can be retained by redeeming Public Warrant holders is approximately $7.8 million. The actual market price of the Public Warrants may be higher or lower on the date that Public Warrant holders seek to sell such Public Warrants. Additionally, Inflection Point cannot assure the Public Warrant holders that they will be able to sell their Public Warrants in the open market as there may not be sufficient liquidity in such securities when Public Warrant holders wish to sell their Public Warrants.

Q.      How do the Inflection Point Warrants offered in Inflection Point’s IPO differ from the Private Placement Warrants, and what are the related risks for any holders of Inflection Point Warrants after the Business Combination?

A.     The Private Placement Warrants are identical to the warrants sold in Inflection Point’s IPO in material terms and provisions, except that so long as they are held by the Sponsor or its permitted transferees, the Private Placement Warrants (including their component securities) (i) may not (including the Class A ordinary shares issuable upon exercise of these warrants), subject to certain limited exceptions, be transferred, assigned or sold by the holders until 30 days after the completion of our initial business combination, (ii) are entitled to registration rights.

Q.     What are the U.S. federal income tax consequences of exercising my redemption rights?

A.     Subject to the discussion below regarding holders who both exercise redemption rights and also participate in the Business Combination, the U.S. federal income tax consequences of exercising your redemption rights with respect to your Inflection Point Class A Shares depend on your particular facts and circumstances. It is possible that you may be treated as selling such shares and, as a result, recognize capital gain or loss. It is also possible that the redemption may be treated as a distribution for U.S. federal income tax purposes. Whether a redemption qualifies for sale treatment will depend largely on the total number of shares of Inflection Point stock you are treated as owning before and after the redemption (including shares that you constructively own as a result of owning Inflection Point Warrants) relative to all of the shares of Inflection Point stock outstanding both before and after the redemption. Redeeming U.S. Holders generally will also be subject to the PFIC rules with respect to any gain or loss recognized (if the redemption were treated as a sale) or any corporate distribution deemed received (if the redemption were treated as a distribution). For a more complete discussion, see “Material U.S. Federal Income Tax Considerations.”

If a U.S. Holder elects to redeem some but not all of its Inflection Point Class A Shares, the redemption may be treated as integrated with the Business Combination rather than as a separate transaction. If the Business Combination qualifies as a Section 351 Transaction (and the Merger does not also qualify as a Section 368(a) Reorganization), cash received by such U.S. Holder in the redemption may be treated as taxable boot received in the Section 351 Transaction, in which case such U.S. Holder generally will recognize gain (but not loss) not in excess of the amount of cash received, and the character of such gain generally will be capital gain (long-term or short-term depending on the U.S. Holder’s holding period). If, instead, the Merger qualifies as a Section 368(a) Reorganization and the redemption is treated as integrated with the Merger, cash received by such U.S. Holder in the redemption may be treated as taxable boot received in the Section 368(a) Reorganization, in which case gain (but not loss) will be recognized in an amount not in excess of the cash received. As further described under “Material U.S. Federal Income Tax Considerations — I. U.S. Holders — C. Tax Consequences of the Business Combination to U.S. Holders — 6. Integration of Partial Redemptions with the Business Combination,” a portion of such gain may be treated as a dividend to the extent of the U.S. Holder’s ratable share of Post-Domestication Inflection Point’s undistributed earnings and profits and/or potentially the undistributed earnings of New Quantum Space.

Because the Domestication will occur prior to the redemption of shareholders that exercise redemption rights, U.S. Holders and Non-U.S. Holders exercising redemption rights will be subject to the potential tax consequences of Section 367 of the Code and the PFIC rules as a result of the Domestication. All holders considering exercising redemption rights are urged to consult their tax advisor regarding the tax consequences to them of an exercise of redemption rights.

Q.     What happens to the funds deposited in the Trust Account after consummation of the Business Combination?

A.     Following the closing of the IPO (including full exercise of the over-allotment option by the underwriters of the IPO), an amount equal to $253,000,000 ($10.00 per Inflection Point Unit) of the net proceeds from the IPO and the sale of the Private Placement Warrants was placed in the Trust Account. As of the Record Date, funds in the

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Trust Account totaled approximately $[•] and were comprised entirely of U.S. government treasury obligations with a maturity of 185 days or less or of money market funds meeting certain conditions under Rule 2a-7 under the Investment Company Act of 1940, as amended (the “Investment Company Act”), which invest only in direct U.S. government treasury obligations. These funds will remain in the Trust Account, except for the withdrawal of interest to fund Inflection Point’s working capital requirements (subject to an annual limit of $500,000 (plus the rollover of unused amounts from prior years) and/or to pay Inflection Point’s taxes (any withdrawals to pay taxes shall not be subject to the $500,000 annual limitation) (collectively, “Permitted Withdrawals”), if any, until the earliest of (a) the completion of a business combination (including the Closing) and (b) the redemption of all of the Public Shares if Inflection Point is unable to complete a business combination by March 30, 2028 (or if such date is further extended at a duly called general meeting, such later date) and (c) the redemption of any Public Shares properly tendered in connection with a shareholder vote to amend the Cayman Constitutional Documents (A) to modify the substance or timing of Inflection Point’s obligation to redeem 100% of the Public Shares in connection with its initial business combination or if it does not complete a business combination by March 30, 2028 (or such later date approved at a duly called general meeting) or (B) with respect to any other material provisions relating to shareholders’ rights or pre-initial business combination activity, subject to applicable law.

In connection with the Business Combination, the funds deposited in the Trust Account will be released to pay Public Shareholders who properly exercise their redemption rights; to pay transaction fees and expenses of Inflection Point associated with the Business Combination; and for working capital and general corporate purposes of PubCo (or for any other use as directed by PubCo, subject to certain limitations) following the Business Combination. See the section of this proxy statement/prospectus entitled “Summary of the Proxy Statement/Prospectus — Sources and Uses of Funds for the Business Combination.”

Q.     What happens if a substantial number of the Public Shareholders vote in favor of the Business Combination Proposal and exercise their redemption rights?

A.     The Public Shareholders are not required to vote in respect of the Business Combination in order to exercise their redemption rights. Accordingly, the Business Combination may be consummated even though the funds available from the Trust Account and the number of Public Shareholders is reduced as a result of redemptions by Public Shareholders.

In the event of significant redemptions, with fewer Public Shares and Public Shareholders, the trading market for New Quantum Space Common Stock may be less liquid than the market for Inflection Point Class A Shares was prior to the Business Combination, and PubCo may not be able to meet the listing standards for NYSE or another national securities exchange.

In addition, with fewer funds available from the Trust Account, the capital infusion from the Trust Account into PubCo’s business will be reduced and PubCo may not be able to achieve its business plans. In addition, without additional funds from the Closing PIPE Investment in connection with the Closing, it is possible that a maximum redemption scenario would result in a cash deficit, in which event the parties would need to find additional sources of funding in order for the Business Combination to become effective.

The table below presents the Trust Account value per share to a Public Shareholder that elects not to redeem its shares across a range of varying redemption scenarios. This Trust Account value per share includes the per share cost of the deferred underwriting commission.

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____________

(1)      Assumes that no Public Shareholders exercise redemption rights with respect to their Public Shares for a pro rata share of the funds in the Trust Account, which is a redemption scenario that could occur.

(2)      Assumes that holders of 50% of the Public Shares, 12,650,000 Public Shares, will exercise their redemption rights for an aggregate payment of approximately $127.4 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026, which is a redemption scenario that could occur.

(3)      Assumes that holders of 100% of the Public Shares, 25,300,000 Public Shares, will exercise their redemption rights for an aggregate payment of approximately $254.8 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026, which is a redemption scenario that could occur.

Furthermore, to the extent that Public Shareholders redeem their Public Shares in connection with the Business Combination, their Inflection Point Warrants will remain issued and outstanding notwithstanding the redemption of their Public Shares. The Sponsor and Inflection Point’s IPO underwriter hold an aggregate of 7,400,000 Private Placement Warrants. Following the consummation of the Business Combination, all of the Inflection Point Warrants will ultimately become New Quantum Space Warrants.

For information on the relative ownership levels of holders of PubCo Securities following the Business Combination under varying redemption scenarios and the fully diluted relative ownership levels of holders of PubCo Securities following the Business Combination under varying redemption scenarios, see the question entitled “What equity stake will current Inflection Point securityholders and Quantum Space Equity Holders hold in New Quantum Space immediately after the consummation of the Business Combination?”

Q.     What underwriting fees are payable in connection with the Business Combination?

A.     Pursuant to that certain Underwriting Agreement between Inflection Point and Cantor, as representative of the several underwriters, dated March 26, 2026 (as it may be amended from time to time, the “Underwriting Agreement”), Inflection Point previously agreed to pay to Cantor an aggregate cash amount of $9,900,000, or $12,045,000 if the over-allotment option is exercised, as “deferred underwriting commissions” (the “Original Deferred Fee”) upon the consummation of an initial business combination. Solely in connection with the Business Combination, Cantor agreed to reduce the Original Deferred Fee to $4,000,000, plus an additional cash fee equal to 4.0% of the aggregate amount delivered from the Trust Account at the Closing, up to $8,045,000 ($12,045,000 total).

Q.     What conditions must be satisfied to complete the Business Combination?

A.     All obligations of Inflection Point and Quantum Space to consummate the Business Combination are subject to the satisfaction or waiver (to the extent legally permitted) of certain customary closing conditions, including without limitation, the following material mutual conditions applicable to each Party: (i) each Required Regulatory Approval (as defined in the Business Combination Agreement) shall have been obtained, made or completed and shall be in full force and effect, and any applicable waiting period (and any extension thereof) under any applicable antitrust law or any foreign-investment-review, national-security, export controls and sanctions, or sensitive-technology authority shall have expired or been terminated; (ii) the adoption and/or approval, as applicable, by Inflection Point’s shareholders of the Purchaser Shareholder Approvals (as defined in the Business Combination Agreement); (iii) no adverse law or order then in effect prevents or prohibits consummation of the Business Combination; (iv) the Registration Statement becoming effective under the Securities Act of 1933, as amended (the “Securities Act”), and remaining effective as of the Closing, with no stop order or similar order suspending its effectiveness; (v) approval of the listing of the New Quantum Space Class A-1 Common Stock on NYSE, subject to certain conditions and exceptions as described in the Business Combination Agreement; and (vi) the Proposed Charter

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shall have been duly filed with the Secretary of State of the State of Delaware and the Proposed Bylaws shall have been duly adopted, in each case in full force and effect as of the Closing. Inflection Point and Quantum Space may waive any of the mutual conditions to their respective obligations, to the extent legally permitted.

In addition to the foregoing mutual conditions, the obligations of Quantum Space to consummate the Business Combination are subject to the satisfaction or waiver (to the extent legally permitted) of the following additional material conditions: (i) the Purchaser Fundamental Representations (as defined in the Business Combination Agreement) shall be true and correct in all respects (other than de minimis inaccuracies); (ii) the other representations and warranties of the Inflection Point Parties shall be true and correct except for any failures to be true and correct that (without giving effect to any qualifications or limitations as to materiality or Purchaser Material Adverse Effect (as defined in the Business Combination Agreement)), individually or in the aggregate, have not had and would not reasonably be expected to have a Purchaser Material Adverse Effect; (iii) the performance by the Purchaser Parties of their respective covenants and agreements in all material respects; (iv) no uncured Purchaser Material Adverse Effect shall have occurred and be continuing; (v) the completion of the Domestication in accordance with the Business Combination Agreement; (vi) Inflection Point shall have made (and shall have caused the Trustee (as defined in the Business Combination Agreement) to make) appropriate arrangements to have the Trust Account (as defined in the Business Combination Agreement) available at the Closing for payment of certain amounts payable in connection with the Closing; (vii) the aggregate cash proceeds available to Inflection Point from the Trust Account (after giving effect to all redemptions), plus the gross proceeds of the PIPE Investment, less certain transaction expenses as specified in the Business Combination Agreement, shall be equal to or greater than $90 million; and (viii) the delivery of customary certificates and certain other ancillary documents. Quantum Space may waive any of the conditions to its obligations, to the extent legally permitted.

In addition to the mutual conditions described above, the obligations of Inflection Point to consummate the Business Combination are subject to the satisfaction or waiver (to the extent legally permitted) of the following additional material conditions: (i) the Company Fundamental Representations (as defined in the Business Combination Agreement) shall be true and correct in all respects (other than de minimis inaccuracies); (ii) the other representations and warranties of Quantum Space shall be true and correct except for any failures to be true and correct that (without giving effect to any qualifications or limitations as to materiality or Company Material Adverse Effect (as defined in the Business Combination Agreement)), individually or in the aggregate, have not had and would not reasonably be expected to have a Company Material Adverse Effect; (iii) the performance by Quantum Space of its covenants and agreements in all material respects; (iv) no uncured Company Material Adverse Effect shall have occurred and be continuing with respect to the Target Companies (as defined in the Business Combination Agreement), taken as a whole; (v) the Recapitalization shall have been completed in accordance with the Business Combination Agreement; (vi) the delivery of customary certificates and certain other ancillary documents; (vii) each Material Third-Party Consent (as defined in the Business Combination Agreement) shall have been obtained, made or completed and shall be in full force and effect; and (viii) the Requisite Member Approval (as defined in the Business Combination Agreement) shall have been obtained. Inflection Point may waive any of the conditions to its obligations, to the extent legally permitted.

In the event of the waiver of a condition, the Inflection Point Board will evaluate the materiality of any such waiver to determine whether amendment of this proxy statement/prospectus and recirculation or resolicitation of shareholder approval is necessary. For more information, refer to the section entitled “The exercise of Inflection Point’s and Quantum Space’s management’s discretion in agreeing to changes or waivers in the terms of the Business Combination may result in a conflict of interest when determining whether such changes to the terms of the Business Combination or waivers of conditions are appropriate, and may not be in the best interest of Inflection Point shareholders.”

Q.     When do you expect the Business Combination to be completed?

A.     It is currently expected that the Business Combination will be consummated in the fourth quarter of 2026. This date depends, among other things, on the approval of the proposals to be put to Inflection Point shareholders at the extraordinary general meeting. However, such meeting could be adjourned if the Adjournment Proposal is approved by Inflection Point’s shareholders at the extraordinary general meeting and the chairman of the Inflection Point Board elects to adjourn the extraordinary general meeting to a later date or dates, if necessary or convenient, (i) to permit further solicitation and vote of proxies in the event that there are insufficient votes for, or otherwise in connection with the approval of one or more proposals at the extraordinary general meeting, (ii) if Inflection Point

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determines that one or more of the conditions to Closing is not or will not be satisfied or waived or (iii) to facilitate the Domestication, the Merger or any other transaction contemplated by the Business Combination Agreement or the related agreements. For a description of the conditions for the completion of the Business Combination, see “The Business Combination Proposal — Business Combination Agreement” of this proxy statement/prospectus.

Q.     What happens if the Business Combination is not consummated?

A.     Inflection Point will not complete the Domestication to the State of Delaware unless all other conditions to the consummation of the Business Combination have been satisfied or waived by the parties in accordance with the terms of the Business Combination Agreement (or by their nature are to be satisfied at Closing). If Inflection Point is not able to complete the Business Combination with Quantum Space by March 30, 2028 (or such later date as its shareholders may approve in accordance with the Cayman Constitutional Documents, subject to applicable law) and is not able to complete another business combination by such date (or such later date as its shareholders may approve in accordance with the Cayman Constitutional Documents, subject to applicable law), Inflection Point will cease all operations except for the purpose of winding up, as promptly as reasonably possible but not more than ten business days thereafter, subject to lawfully available funds, redeem the Public Shares at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest earned on the Trust Account (which interest shall be net of taxes payable and less up to $100,000 of interest to pay dissolution expenses) divided by the number of Public Shares then in issue, which redemption will completely extinguish Public Shareholders’ rights as members (including the right to receive further liquidation distributions, if any) subject to applicable law, and as promptly as reasonably possible following such redemption, subject to the approval of Inflection Point’s remaining shareholders and the Inflection Point Board, liquidate and dissolve, subject to our obligations under Cayman Islands law to provide for claims of creditors and in all cases the requirements of applicable law. In such event, the Inflection Point Warrants may be worthless.

Q:     What interests do the Sponsor, Inflection Point Fund, and Inflection Point’s directors and officers have in the Business Combination?

A:     The Sponsor, Inflection Point Fund, and Inflection Point’s directors and officers have interests in such Business Combination that are different from, or in addition to, those of Inflection Point’s shareholders generally. Further, Inflection Point’s officers and directors have additional fiduciary or contractual obligations to other entities pursuant to which such officer or director is or will be required to present a business combination opportunity to such entity, which are set forth in more detail in the section entitled “Information About Inflection Point — Conflicts of Interest.” We believe there were no such opportunities that were not presented as a result of the existing fiduciary or contractual obligations of our officers and directors to other entities. The Inflection Point Board and the Audit Committee were aware of and considered these interests, among other matters, in evaluating and negotiating the Business Combination and Business Combination Agreement and in recommending to our shareholders that they vote in favor of the proposals to be presented at the extraordinary general meeting, including the Business Combination Proposal. Inflection Point shareholders should take these interests into account in deciding whether to approve the proposals to be presented at the extraordinary general meeting, including the Business Combination Proposal. These interests include, among other things:

•        Our Sponsor purchased 8,433,333 Founder Shares for $25,000, or approximately $0.003 per share, in a private placement prior to the consummation of the IPO. The Sponsor is controlled by Michael Blitzer, Kevin Shannon and Adam Saks, who respectively serve as Chairman, Chief Executive Officer and Chief Financial Officer of Inflection Point. Inflection Point Fund has an economic interest in 4,815,833 Founder Shares, or approximately 57.1% of the Founder Shares held by the Sponsor. Michael Blitzer, our Chairman and director, Kevin Shannon, our Chief Executive Officer, and Adam Saks, our Chief Financial Officer, are affiliates of Inflection Point Fund and have economic interests in Inflection Point Fund, including performance allocations, management fees and as limited partners. Each director and officer of Inflection Point has economic interests in the Founder Shares held by the Sponsor. No other person has a direct or indirect material interest in the Sponsor. Such 8,433,333 shares of New Quantum Space Class A-1 Common Stock that the Sponsor and its permitted transferees will receive upon conversion of such Founder Shares in the Business Combination, if unrestricted and freely tradable, would have had an aggregate market value of approximately $84.7 million based on the closing price of $10.04 per Inflection Point Class A Share on Nasdaq on October 21, 2026, the most recent practicable date prior to the date of this proxy statement/prospectus. However, given such shares of New Quantum Space Common Stock will be subject to lock-up restrictions, we believe such shares will have less value.

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•        Our Sponsor purchased 5,000,000 Private Placement Warrants for $5,000,000, or $1.00 per Private Placement Warrant, in a private placement that closed simultaneously with the IPO. The Sponsor is controlled by Michael Blitzer, Kevin Shannon and Adam Saks, who respectively serve as Chairman, Chief Executive Officer and Chief Financial Officer of Inflection Point. Inflection Point Fund has an economic interest in 4,300,000 warrants, or 86% of the Private Placement Warrants held by the Sponsor. Mr. Blitzer, Mr. Shannon and Mr. Saks are affiliates of Inflection Point Fund and have economic interests in Inflection Point Fund, including performance allocations, management fees and as limited partners. Following the Business Combination, the 5,000,000 New Quantum Space Warrants that the Sponsor will receive upon conversion of such Private Placement Warrants, if unrestricted and freely tradable, would have had an aggregate market value of approximately $3.3 million based on the closing price of $0.65 per Inflection Point Warrant on Nasdaq on October 21, 2026, the most recent practicable date prior to the date of this proxy statement/prospectus. However, given such New Quantum Space Warrants will be subject to lock-up restrictions, we believe such shares will have less value.

•        Given the differential in the purchase price that the Sponsor paid for the Founder Shares as compared to the price of the Inflection Point Class A Shares included in the Inflection Point Units sold in the IPO, the Sponsor may earn a positive rate of return on its investment even if the shares of New Quantum Space Common Stock trade below $10.00 per share and the Public Shareholders experience a negative rate of return following the Closing. Accordingly, the economic interests of the Sponsor diverge from the economic interests of Public Shareholders because the Sponsor will realize a gain on its investment from the completion of almost any business combination while Public Shareholders will realize a gain only if the post-closing trading price exceeds $10.00 per share.

•        Our Sponsor, and therefore Inflection Point Fund, will lose its entire investment in us if we do not complete a business combination by March 30, 2028 (or if such date is extended at a duly called meeting of the Inflection Point shareholders, such later date). If we do not consummate a business combination by such date, as promptly as reasonably possible but not more than ten business days thereafter, we will redeem the Public Shares for a pro rata portion of the funds held in the Trust Account, subject to our obligations under Cayman Islands law to provide for the claims of creditors and the requirements of other applicable law. In such event, the Inflection Point Warrants may be worthless. In such event, the 8,433,333 Inflection Point Ordinary Shares owned by our Sponsor would be worthless because following the redemption of Public Shares, we would likely have few, if any, net assets and because the Sponsor has agreed to waive their rights to liquidating distributions from the Trust Account with respect to such shares if we fail to complete a business combination within the required period. Additionally, in such event, the 5,000,000 Private Placement Warrants that the Sponsor paid $5,000,000 to purchase will expire and become worthless.

•        Inflection Point Fund, an accredited investor that is an affiliate of Inflection Point, has an economic interest in 4,815,833 Founder Shares, or approximately 57.1% of the Founder Shares and 4,300,000 warrants, or 86%, of the Private Placement Warrants held by the Sponsor. In exchange for the Pre-Funded Preferred Units and Pre-Funded Warrants it purchased for $32.5 million, (a) Inflection Point Fund will contribute all of its Pre-Funded Preferred Units to New Quantum Space in exchange for a number of shares of New Quantum Space Series A Preferred Stock equal to the quotient of (i) the aggregate Series B preference amount of such holder’s Pre-Funded Preferred Units, divided by (ii) $12.00 (approximately 3,364,356 shares of New Quantum Space Series A Preferred Stock taking into account accrued payment-in-kind dividends through November 25, 2026; such number of shares of New Quantum Space Series A Preferred Stock may increase prior to Closing due to additional accrued payment-in-kind dividends after such date) and (b) Inflection Point Fund may elect to contribute its Pre-Funded Warrants (initially exercisable for 3,186,274 Quantum Space Common Units at $12.00 per unit) to New Quantum Space in exchange for New Quantum Space Preferred Investor Warrants initially exercisable to purchase up to 3,186,274 shares of New Quantum Space Class A-1 Common Stock at $12.00 per share, each subject to adjustment.

•        Inflection Point’s Sponsor, officers and directors, and Inflection Point Fund, have agreed not to redeem any of the Founder Shares or Inflection Point Ordinary Shares held by them in connection with a shareholder vote to approve the Business Combination.

•        If the Trust Account is liquidated, the Sponsor has agreed to indemnify us to ensure that the proceeds in the Trust Account are not reduced below $10.00 per Public Share, or such lesser amount per Public Share as is in the Trust Account on the liquidation date, by the claims of prospective target businesses with which we

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have entered into an acquisition agreement or claims of any third party for services rendered or products sold to us, but only if such a vendor or target business has not executed a waiver of any and all rights to seek access to the Trust Account.

•        Inflection Point’s existing officers and directors will be eligible for continued indemnification and continued coverage under a directors’ and officers’ liability insurance policy for a period of six (6) years after the Business Combination.

•        The Sponsor and its members (present and former), managers and affiliates and their respective present and former officers and directors (each, a “Sponsor Indemnitee”) will be eligible for continued indemnification for any Sponsor Indemnitee’s activities in connection with the affairs of Inflection Point.

•        The continuation of Michael Blitzer as a director of the New Quantum Space Board following the Closing. As such, in the future he may receive any cash fees, stock options or stock awards that the New Quantum Space Board determines to pay to its directors.

•        In connection with the Closing, our Sponsor, officers and directors would be entitled to the repayment of any outstanding working capital loan and advances that have been made to Inflection Point. In order to finance transaction costs in connection with a business combination, the Sponsor or Inflection Point Fund or certain of Inflection Point’s officers or directors may, but are not obligated to, loan Inflection Point Working Capital Loans. In the event that a business combination does not close, Inflection Point may use a portion of the working capital held outside the Trust Account to repay the Working Capital Loans but no proceeds from the Trust Account would be used to repay the Working Capital Loans. Up to $1,500,000 of such Working Capital Loans may be convertible into private placement warrants at $1.00 per warrant at the option of the lender. The warrants would be identical to the Private Placement Warrants. As of the date of this proxy statement/prospectus, no such Working Capital Loans are outstanding.

•        Upon the Closing, subject to the terms and conditions of the Business Combination Agreement, our Sponsor, our officers and directors and their respective affiliates may be entitled to reimbursement for any reasonable out-of-pocket expenses related to identifying, investigating and consummating an initial business combination, and repayment of any other loans, if any, and on such terms as to be determined by Inflection Point from time to time, made by our Sponsor or certain of our officers and directors to finance transaction costs in connection with an intended initial business combination. As of the date of this proxy statement/prospectus, there are no out-of-pocket expenses to be reimbursed.

•        Pursuant to the A&R Registration Rights Agreement, Inflection Point’s officers and directors, and the Sponsor and its members will have customary registration rights, including demand and piggy-back rights, subject to cooperation and cut-back provisions with respect to the New Quantum Space Common Stock held by such parties following the consummation of the Business Combination.

In addition, as a result of multiple business affiliations, our directors and officers have fiduciary, contractual or similar legal obligations to other entities, which may require our directors and officers to present a business combination opportunity to such other entity and only present it to us if such entity rejects the opportunity, subject to his or her fiduciary duties under Cayman Islands law. We believe, however, that there were no such corporate opportunities presented to our directors and officers which were not presented to Inflection Point, and therefore that our directors’ and officers’ additional fiduciary, contractual, or similar legal obligations to other entities did not impact our search for a business combination target. For more information, see “Information About Inflection Point — Conflicts of Interest.”

The Inflection Point Board engaged Newbridge to provide an opinion to the Inflection Point Board as to the fairness, from a financial point of view, to the Inflection Point Unaffiliated Shareholders of the Aggregate Consideration to be paid by Inflection Point pursuant to the Business Combination Agreement, a copy of the Fairness Opinion is attached hereto as Annex F.

Quantum Space’s directors and executive officers also have interests in the Business Combination that are different from, or in addition to, and may conflict with, the interests of unaffiliated security holders of Inflection Point, including their ownership of Quantum Space equity interests, the post-Closing founder incentive arrangement to be established for Dr. Ghaffarian and other members of Quantum Space’s executive management, and their

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expected continuation in executive officer and director positions at New Quantum Space. See the section of this proxy statement/prospectus entitled “Executive and Director Compensation of Quantum Space — Interests of Quantum Space’s Directors and Executive Officers in the Business Combination” for more information.

Q.     Following the Business Combination, will New Quantum Space’s securities trade on a stock exchange?

A.     Yes. PubCo intends to apply to list the New Quantum Space Common Stock and the New Quantum Space Warrants on NYSE under the proposed symbols “QSPC” and “QSPCW,” respectively, upon the Closing. Pursuant to the terms of the Business Combination Agreement, as a closing condition, the New Quantum Space Common Stock issued as consideration in the Business Combination must be conditionally approved for listing on NYSE subject to any requirement to have a sufficient number of round lot holders of the New Quantum Space Common Stock, but there can be no assurance that such listing condition will be met. If such listing condition is not met, the Business Combination will not be consummated unless the listing condition is waived by the parties to the Business Combination Agreement. Following the Closing, the New Quantum Space Class A-1 Common Stock and the New Quantum Space Warrants are intended to be listed, subject to NYSE approval, under the proposed symbols “QSPC” and “QSPCW,” respectively. It is important for you to know that, at the time of Inflection Point’s extraordinary general meeting, the parties may not have received from NYSE either confirmation of the listing of the New Quantum Space Common Stock or that approval will be obtained prior to the consummation of the Business Combination, and it is possible that the listing condition to the consummation of the Business Combination may be waived by the parties to the Business Combination Agreement. As a result, you may be asked to vote to approve the Business Combination and the other proposals included in this proxy statement/prospectus without such confirmation, and, further, it is possible that such confirmation may never be received and the Business Combination could still be consummated if such condition is waived or is subject to an exception and therefore the New Quantum Space Class A-1 Common Stock would not be listed on any nationally recognized securities exchange.

The Inflection Point Units will no longer trade as separate securities following the Closing. The Series A Preferred Stock and the New Quantum Space Series A Warrants will not be publicly traded.

Q.     Do I have appraisal rights in connection with the Business Combination?

A.     Inflection Point shareholders do not have appraisal or dissenters’ rights under Cayman Islands law in connection with the Domestication or the Business Combination. Section 238 of the Companies Act does not apply because the Merger will be consummated after the Domestication under Delaware law. There are no appraisal rights under Delaware law with respect to any of the securities of Inflection Point.

Q.     What do I need to do now?

A.     Inflection Point urges you to read this proxy statement/prospectus, including the Annexes and the documents referred to herein, carefully and in their entirety and to consider how the Business Combination will affect you as a shareholder or warrant holder. Inflection Point’s shareholders should then vote as soon as possible in accordance with the instructions provided in this proxy statement/prospectus and on the enclosed proxy card.

Q.     How do I vote?

A.     If you are a holder of record of Inflection Point Ordinary Shares on the Record Date for the extraordinary general meeting, you may vote in person (including virtually) at the extraordinary general meeting or by submitting a proxy for the extraordinary general meeting. You may submit your proxy by completing, signing, dating and returning the enclosed proxy card in the accompanying pre-addressed postage-paid envelope not less than 48 hours prior to the start of the extraordinary general meeting. If you hold your shares in “street name,” which means your shares are held of record by a broker, bank or nominee, you should contact your broker, bank or nominee to ensure that votes related to the shares you beneficially own are properly counted. In this regard, you must provide the broker, bank or nominee with instructions on how to vote your shares or, if you wish to attend the extraordinary general meeting and vote in person, obtain a valid proxy from your broker, bank or nominee.

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Q.     If my shares are held in “street name,” will my broker, bank or nominee automatically vote my shares for me?

A.     No. If your shares are held in a stock brokerage account or by a bank or other nominee, you are considered the “beneficial holder” of the shares held for you in what is known as “street name.” If this is the case, this proxy statement/prospectus may have been forwarded to you by your brokerage firm, bank or other nominee, or its agent, and you may need to obtain a proxy form from the institution that holds your shares and follow the instructions included on that form regarding how to instruct your broker, bank or nominee as to how to vote your shares. Under the rules of various national and regional securities exchanges, your broker, bank, or nominee cannot vote your shares with respect to non-discretionary matters unless you provide instructions on how to vote in accordance with the information and procedures provided to you by your broker, bank, or nominee. We believe all the proposals presented to the shareholders will be considered non-discretionary and therefore your broker, bank, or nominee cannot vote your shares without your instruction. Your bank, broker, or other nominee can vote your shares only if you provide instructions on how to vote. As the beneficial holder, you have the right to direct your broker, bank or other nominee as to how to vote your shares and you should instruct your broker to vote your shares in accordance with directions you provide. If you do not provide voting instructions to your broker on a particular proposal on which your broker does not have discretionary authority to vote, your shares will not be voted on that proposal. This is called a “broker non-vote.” Broker non-votes are not considered present for the purposes of establishing a quorum, will not count as votes cast at the extraordinary general meeting, and otherwise will have no effect on a particular proposal, assuming a valid quorum is established, except for the Merger Proposal. Broker non-votes will not be considered present for the purposes of establishing a quorum, will not count as a vote cast at the extraordinary general meeting and will therefore have the same effect as a vote against the Merger Proposal.

Q.     When and where will the extraordinary general meeting be held?

A.     The extraordinary general meeting will be held at [•], New York City time, on [•], 2026, at the offices of White & Case LLP located at 1221 Avenue of the Americas, New York, NY 10020, and virtually via live webcast at https://www.cstproxy.com/inflectionpointacquisitionVI/2026.

Q.     Who is entitled to vote at the extraordinary general meeting?

A.     Inflection Point has fixed [•], 2026 as the Record Date for the extraordinary general meeting. If you were a shareholder of Inflection Point at the close of business on the Record Date, you are entitled to vote on matters that come before the extraordinary general meeting. However, a shareholder may only vote his or her shares if he or she is present in person (including virtually) or is represented by proxy at the extraordinary general meeting.

Q.     How many votes do I have?

A.     Inflection Point shareholders are entitled to one vote at the extraordinary general meeting for each Inflection Point Ordinary Share held of record as of the Record Date. As of the close of business on the Record Date for the extraordinary general meeting, there were 33,733,333 Inflection Point Ordinary Shares issued and outstanding, of which 25,300,000 were issued and outstanding Public Shares.

Q.     What constitutes a quorum?

A.     A quorum of Inflection Point shareholders is necessary to hold a valid meeting. A quorum will be present at the extraordinary general meeting if the holders of at least one-third of the issued and outstanding Inflection Point Ordinary Shares entitled to vote at the extraordinary general meeting are represented in person or by proxy or if a corporation or other non-natural person by its duly authorized representative or proxy. As of the Record Date for the extraordinary general meeting, 11,244,444 Inflection Point Ordinary Shares would be required to achieve a quorum.

Q.     What vote is required to approve each proposal at the extraordinary general meeting?

A.     Business Combination Proposal — The approval of the Business Combination Proposal requires an ordinary resolution, being the affirmative vote of the holders of a simple majority of the Inflection Point Ordinary Shares, who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

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Domestication Proposal — The approval of the Domestication Proposal requires a special resolution of the Inflection Point Class B Shareholders, being the affirmative vote of holders of at least two-thirds of the Inflection Point Class B Shares, who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting. The holders of Inflection Point Class A Shares will have no right to vote on the Domestication Proposal, in accordance with Article 49.2 of the Cayman Constitutional Documents.

Merger Proposal — The approval of the Merger Proposal requires the affirmative vote of holders of a majority of the Inflection Point Ordinary Shares outstanding.

Domesticated Organizational Documents Proposal — The approval of the Domesticated Organizational Documents Proposal requires a special resolution of the Inflection Point Class B Shareholders, being the affirmative vote of holders of at least two-thirds of the Inflection Point Class B Shares who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting. The Inflection Point Class A Shareholders will have no right to vote on the Domesticated Organizational Documents Proposal, in accordance with Article 49.2 of the Cayman Constitutional Documents.

Advisory Organizational Documents Proposals — The separate approval of each of the Advisory Organizational Documents Proposals, each of which is a non-binding vote, requires an ordinary resolution of the holders of Inflection Point Ordinary Shares who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

Director Election Proposal — The approval of the Director Election Proposal requires an ordinary resolution, being the affirmative vote of holders of a simple majority of the Inflection Point Ordinary Shares, who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

New Quantum Space Incentive Plan Proposal — The approval of the New Quantum Space Incentive Plan Proposal requires an ordinary resolution, being the affirmative vote of holders of a simple majority of the Inflection Point Ordinary Shares, who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

New Quantum Space Employee Stock Purchase Plan Proposal — The approval of the New Quantum Space Employee Stock Purchase Plan Proposal requires an ordinary resolution, being the affirmative vote of holders of a simple majority of the Inflection Point Ordinary Shares, who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

Adjournment Proposal — The approval of the Adjournment Proposal requires an ordinary resolution, being the affirmative vote of the holders of a simple majority of the Inflection Point Ordinary Shares, who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

The Sponsor has agreed to vote all the Founder Shares and any Public Shares they may hold in favor of all the proposals being presented at the extraordinary general meeting. As of the Record Date, the Sponsor owned approximately 25.0% of the issued and outstanding Inflection Point Ordinary Shares. See the section of this proxy statement/prospectus entitled “Questions and Answers for Shareholders — How does the Sponsor intend to vote its Inflection Point Ordinary Shares?”

The Business Combination was not structured to require the approval of at least a majority of Inflection Point’s unaffiliated shareholders because such a vote is not required under Cayman Islands law.

Q.     What are the recommendations of the Inflection Point Board?

A.     The Inflection Point Board believes that the Business Combination Proposal and the other proposals to be presented at the extraordinary general meeting are in the best interest of Inflection Point’s shareholders and unanimously recommends that its shareholders vote “FOR” the approval of the Business Combination Proposal, “FOR” the approval of the Domestication Proposal, “FOR” the approval of the Merger Proposal, “FOR” the approval of the Domesticated Organizational Documents Proposal, “FOR” the approval, on an advisory basis, of each of the separate Advisory Organizational Documents Proposals, “FOR” the approval of the Director Election Proposal, “FOR” the approval of the New Quantum Space Incentive Plan Proposal, “FOR” the approval of the New Quantum Space Employee Stock Purchase Plan Proposal and “FOR” the approval of the Adjournment Proposal, if presented to the extraordinary general meeting.

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The Inflection Point Board, after careful consideration, determined that the Business Combination is in the best interests of Inflection Point and its shareholders, and approved, among other things, the Business Combination Agreement, the Business Combination and the other agreements and transactions contemplated thereby. See the subsection entitled “Extraordinary General Meeting of Inflection Point — Recommendation of the Inflection Point Board” for more information.

For a description of the Inflection Point Board’s reasons for the approval of the Business Combination and the unanimous recommendation of the Inflection Point Board, see the subsection entitled “The Business Combination Proposal — Inflection Point Board’s Reasons for the Approval of the Business Combination.”

When you consider the recommendation of the Inflection Point Board in favor of approval of these proposals, you should keep in mind that the Sponsor, Inflection Point Fund and Inflection Point’s directors and officers have interests in the Business Combination that are different from, or in addition to, the interests of unaffiliated Inflection Point shareholders, and Quantum Space’s directors and executive officers have interests in the Business Combination that are different from, or in addition to, and may conflict with, the interests of unaffiliated security holders of Inflection Point. Please see the subsections entitled “Interests of Quantum Space’s Directors and Executive Officers in the Business Combination” and “The Business Combination Proposal — Interests of Certain Inflection Point Persons in the Business Combination.”

Q.     How does the Sponsor intend to vote its Inflection Point Ordinary Shares?

A.     The Sponsor has agreed to vote all the Founder Shares and any Public Shares it may hold in favor of all the proposals being presented at the extraordinary general meeting. As of the Record Date, the Sponsor owned 8,433,333 Founder Shares, representing approximately 25.0% of the issued and outstanding Inflection Point Ordinary Shares. As a result, we would need 8,433,334, or 33.3% of the 25,300,000 Public Shares outstanding to be voted in favor of the Business Combination in order to approve the Business Combination Proposal. The Business Combination was not structured to require the approval of at least a majority of Inflection Point’s unaffiliated shareholders because such a vote is not required under Cayman Islands law. To the extent that the Sponsor or our executive officers purchase Public Shares in compliance with the requirements of Rule 14e-5 under the Exchange Act, such shares would not be voted in favor of approving the Business Combination.

The existence of financial and personal interests of one or more of Inflection Point’s directors may result in a conflict of interest on the part of such director(s) between what he, she or they may believe is in the best interests of Inflection Point and its shareholders and what he, she or they may believe is best for himself, herself or themselves in determining to recommend that shareholders vote for the proposals. In addition, Inflection Point’s officers have interests in the Business Combination that may conflict with your interests as a shareholder. See the section of this proxy statement/prospectus entitled “The Business Combination Proposal — Interests of Certain Inflection Point Persons in the Business Combination.”

Q.      Do the Sponsor, Inflection Point Fund, and Inflection Point’s directors and officers have interests in the Business Combination that differ from or are in addition to the interests of Inflection Point’s shareholders generally?

A.      Yes. The Sponsor, Inflection Point Fund and Inflection Point’s officers and directors have interests in the Business Combination that are different from, or in addition to, the interests of Inflection Point’s shareholders generally. The Inflection Point Board and the Audit Committee were aware of and considered these interests, among other matters, in approving the Business Combination Agreement and the Business Combination, and in determining to recommend that Inflection Point’s shareholders vote in favor of the Business Combination Agreement and the Business Combination. See the section of this proxy statement/prospectus entitled “The Business Combination Proposal — Interests of Certain Inflection Point Persons in the Business Combination” for more information. Quantum Space’s directors and executive officers also have interests in the Business Combination that are different from, or in addition to, and may conflict with, the interests of unaffiliated security holders of Inflection Point. See the section of this proxy statement/prospectus entitled “Executive and Director Compensation of Quantum Space — Interests of Quantum Space’s Directors and Executive Officers in the Business Combination” for more information.

Q.     What happens if I sell my Inflection Point Ordinary Shares before the extraordinary general meeting?

A.     The Record Date for the extraordinary general meeting is earlier than the date of the extraordinary general meeting and earlier than the date that the Business Combination is expected to be completed. If you transfer your Public Shares after the Record Date, but before the extraordinary general meeting, unless you grant a proxy to

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the transferee, you will retain your right to vote at the extraordinary general meeting but the transferee, and not you, will have the ability to redeem such shares, so long as such transferee takes the required steps to elect to redeem such shares at least two business days prior to scheduled date of the extraordinary general meeting.

Q.     How can I vote my shares without attending the extraordinary general meeting?

A.     If you are a shareholder of record of our Inflection Point Ordinary Shares as of the close of business on the Record Date, you can vote by proxy by mail by following the instructions provided in the enclosed proxy card or at the extraordinary general meeting. Please note that if you are a beneficial owner of Inflection Point Ordinary Shares, you may vote by submitting voting instructions to your broker, bank or nominee, or otherwise by following instructions provided by your broker, bank or nominee. Telephone and internet voting will be available to beneficial owners. Please refer to the vote instruction form provided by your broker, bank or nominee.

Q.     May I change my vote after I have mailed my signed proxy card?

A.     Yes. Shareholders may send a later dated, signed proxy card to Inflection Point’s Chief Executive Officer at Inflection Point’s address set forth below so that it is received by Inflection Point’s Chief Executive Officer prior to the vote at the extraordinary general meeting (which is scheduled to take place on [•], 2026) or attend the extraordinary general meeting in person and vote. Shareholders also may revoke their proxy by sending a notice of revocation to Inflection Point’s Chief Executive Officer, which must be received by Inflection Point’s Chief Executive Officer prior to the vote at the extraordinary general meeting. However, if your shares are held in “street name” by your broker, bank or another nominee, you must contact your broker, bank or other nominee to change your vote.

Q.     What happens if I fail to take any action with respect to the extraordinary general meeting?

A.     If you fail to take any action with respect to the extraordinary general meeting and the Business Combination is approved by shareholders and the Business Combination is consummated, you will become a stockholder and/or warrant holder of New Quantum Space. If you fail to take any action with respect to the extraordinary general meeting and the Business Combination is not approved, you will remain a shareholder and/or warrant holder of Inflection Point. However, if you fail to vote with respect to the extraordinary general meeting, you will nonetheless be able to elect to redeem your Public Shares in connection with the Business Combination, so long as you take the required steps to elect to redeem your shares at least two business days prior to the initially scheduled date of the extraordinary general meeting pursuant to the procedures described in this proxy statement/prospectus.

Q.     What happens if I vote against the Business Combination Proposal?

A.     If you vote against the Business Combination Proposal but the Business Combination Proposal still obtains the requisite shareholder approval described in this proxy statement/prospectus, then the Business Combination Proposal will be approved and, assuming the approval of the other Condition Precedent Proposals and the satisfaction or waiver of the other conditions to the Closing, the Business Combination will be consummated in accordance with the terms of the Business Combination Agreement.

If you vote against the Business Combination Proposal and the Business Combination Proposal does not obtain the requisite vote at the extraordinary general meeting, then the Business Combination Proposal will fail, and we will not consummate the Business Combination. If we do not consummate the Business Combination Proposal, we may continue to try to complete a business combination with a different target business until March 30, 2028 (or such later date as its shareholders may approve in accordance with the Cayman Constitutional Documents, subject to applicable law). If we fail to complete an initial business combination by March 30, 2028 (or such later date as its shareholders may approve in accordance with the Cayman Constitutional Documents, subject to applicable law), then we will be required to liquidate the Trust Account by returning then-remaining funds in the Trust Account to the Public Shareholders.

Q.     What should I do with my share certificates, warrant certificates or unit certificates?

A.     Public Shareholders must complete the procedures for electing to redeem their Public Shares, including the delivery of their Public Shares, in the manner described above prior to 5:00 p.m., Eastern Time, on [•], 2026 (two business days before the initial scheduled date of the extraordinary general meeting), in order for their Public Shares to be redeemed.

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Our warrant holders should not submit the certificates relating to their Warrants. Public Shareholders who do not elect to have their Public Shares redeemed for the pro rata share of the Trust Account should not submit the certificates relating to their Public Shares.

Upon the Domestication, holders of Inflection Point Units, Inflection Point Class A Shares (including Inflection Point Class B Shareholders that elect to convert their Inflection Point Class B Shares into Inflection Point Class A Shares pursuant to the Cayman Constitutional Documents and the Sponsor Support Agreement immediately prior to the Domestication) and Inflection Point Warrants will receive shares of New Quantum Space Class A-1 Common Stock and New Quantum Space Warrants, as the case may be, without needing to take any action and, accordingly, such holders should not submit any certificates relating to their Inflection Point Units, Inflection Point Class A Shares (unless such holder elects to redeem the Public Shares in accordance with the procedures set forth above), or Inflection Point Warrants.

Q.     What should I do if I receive more than one set of voting materials?

A.     Shareholders may receive more than one set of voting materials, including multiple copies of this proxy statement/prospectus and multiple proxy cards or voting instruction cards. For example, if you hold your shares in more than one brokerage account, you will receive a separate voting instruction card for each brokerage account in which you hold shares. If you are a holder of record and your shares are registered in more than one name, you will receive more than one proxy card. Please complete, sign, date and return each proxy card and voting instruction card that you receive not less than 48 hours prior to the start of the extraordinary general meeting in order to cast a vote with respect to all of your Inflection Point Ordinary Shares.

Q:     Do the Sponsor, Inflection Point Fund, and Inflection Point’s officers and directors expect to purchase Public Shares from Public Shareholders or take other actions to incentivize non-redemption?

A:     The Sponsor, Inflection Point Fund and Inflection Point’s officers and directors do not have any plans at this time to purchase Public Shares from Public Shareholders or to take any other actions to incentivize non-redemption. However, at any time prior to the extraordinary general meeting, during a period when they are not then aware of any material non-public information regarding Inflection Point or its securities, the Sponsor, Inflection Point Fund, and Inflection Point’s officers and directors or their affiliates may purchase Public Shares in privately negotiated transactions or in the open market, although they are under no obligation to do so. There is no limit on the number of Public Shares that such persons may purchase in such transactions, subject to compliance with applicable law and Nasdaq rules. However, other than as expressly stated herein, they have no current commitments, plans or intentions to engage in such transactions and have not formulated any terms or conditions for any such transactions. None of the funds in the Trust Account will be used to purchase Public Shares in such transactions. Such purchases may include a contractual acknowledgment that such shareholder, although still the record holder of Inflection Point’s shares, is no longer the beneficial owner thereof and therefore agrees not to exercise its redemption rights.

In the event that the Sponsor, Inflection Point Fund, and Inflection Point’s officers and directors or their affiliates purchase shares in privately negotiated transactions from Public Shareholders who have already elected to exercise their redemption rights, such selling shareholders would be required to revoke their prior elections to redeem their shares. The purpose of such transaction could be to increase the likelihood of obtaining shareholder approval of the Business Combination. Inflection Point expects any such purchases will be reported pursuant to Section 13 and Section 16 of the Exchange Act to the extent such purchasers are subject to such reporting requirements.

In addition, if such purchases are made, the public “float” of Inflection Point Class A Shares and the number of beneficial holders of Inflection Point Class A Shares may be reduced, possibly making it difficult to obtain or maintain the quotation, listing or trading of Inflection Point’s securities on Nasdaq.

In the event the Sponsor, Inflection Point Fund, and Inflection Point’s officers and directors or their affiliates were to purchase Public Shares from Public Shareholders, such purchases would be structured in compliance with the requirements of Rule 14e-5 under the Exchange Act. To the extent that the Sponsor, Inflection Point Fund, and Inflection Point’s officers and directors or their affiliates purchase Public Shares in compliance with the requirements of Rule 14e-5 under the Exchange Act, such shares would not be voted in favor of approving the Business Combination. See “Extraordinary General Meeting of Inflection Point — Potential Purchases of Public Securities” for more information.

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Q.     Who will solicit and pay the cost of soliciting proxies for the extraordinary general meeting?

A.     Inflection Point will pay the cost of soliciting proxies for the extraordinary general meeting. Inflection Point has engaged Alliance Advisors to assist in the solicitation of proxies for the extraordinary general meeting. Inflection Point has agreed to pay Alliance Advisors a fee of $22,500, plus disbursements. Inflection Point will also reimburse banks, brokers and other custodians, nominees and fiduciaries representing beneficial owners of Inflection Point Class A Shares for their expenses in forwarding soliciting materials to beneficial owners of Inflection Point Class A Shares. Inflection Point’s directors and officers may also solicit proxies by telephone, by facsimile, by mail, on the Internet or in person. They will not be paid any additional amounts for soliciting proxies.

Q.     Where can I find the voting results of the extraordinary general meeting?

A.     The preliminary voting results are expected to be announced at the extraordinary general meeting. Inflection Point will publish final voting results of the extraordinary general meeting in a Current Report on Form 8-K within four business days after the extraordinary general meeting.

Q.     Who can help answer my questions?

A.     If you have questions about the Business Combination or if you need additional copies of the proxy statement/prospectus or the enclosed proxy card, you should contact:

Alliance Advisors, LLC
150 Clove Road, Suite 400
Little Falls, NJ 07424
Phone (Toll-Free): 1-855-206-2037
Email: [email protected]

You also may obtain additional information about Inflection Point from documents filed with the SEC by following the instructions in the section of this proxy statement/prospectus entitled “Where You Can Find More Information.” If you are a Public Shareholder and you intend to seek redemption, you will need to deliver the certificates for your Public Shares (if any) along with the redemption forms (either physically or electronically) to Continental, at the address below prior to the extraordinary general meeting. Public Shareholders must complete the procedures for electing to redeem their Public Shares in the manner described above prior to 5:00 p.m., Eastern Time, on [•], 2026 (two business days prior to the initially scheduled date of the extraordinary general meeting), in order for their Public Shares to be redeemed. If you have questions regarding the certification of your position or delivery of your share certificates (if any) along with the redemption forms, please contact:

Continental Stock Transfer & Trust Company
1 State Street, 30 Floor
New York, New York 10004
Attention: SPAC Redemptions Team
Email: [email protected]

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SUMMARY OF THE PROXY STATEMENT/PROSPECTUS

This summary highlights selected information from this proxy statement/prospectus but does not contain all of the information that may be important to you. To better understand the Proposals to be considered at the extraordinary general meeting, including the Business Combination Proposal, whether or not you plan to attend such meeting, we urge you to read this proxy statement/prospectus (including the Annexes) carefully, including the section entitled “Risk Factors” beginning on page 36 of this proxy statement/prospectus. See also the section entitled “Where You Can Find More Information.”

Parties to the Business Combination

Inflection Point

Inflection Point Acquisition Corp. VI is a special purpose acquisition company incorporated as a Cayman Islands exempted company for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses.

On March 30, 2026, Inflection Point consummated its IPO of 25,300,000 Inflection Point Units, which includes the full exercise by the underwriters of their over-allotment option in the amount of 3,300,000 Inflection Point Units, at $10.00 per unit. Each Inflection Point Unit was sold at a price of $10.00 per Inflection Point Unit, generating gross proceeds of $253,000,000. Each Inflection Point Unit consists of one Inflection Point Class A Share and one-third of one Inflection Point Warrant, with each whole warrant entitling the holder thereof to purchase one Inflection Point Class A Share at a price of $11.50 per share. Simultaneously with the closing of the IPO, Inflection Point consummated the sale of 7,400,000 Private Placement Warrants at a price of $1.00 per Private Placement Warrant, in a private placement to the Sponsor and Cantor, the representative of the IPO underwriters, generating gross proceeds of $7,400,000. Of those 7,400,000 Private Placement Warrants, the Sponsor purchased 5,000,000 Private Placement Warrants and Cantor purchased 2,400,000 Private Placement Warrants. Each whole warrant entitles the holder to purchase one Inflection Point Class A Share at a price of $11.50 per share.

Inflection Point’s prospectus for its IPO and the Cayman Constitutional Documents provide that it has 24 months from the closing of its IPO, or March 30, 2028 (or such later date as its shareholders may approve in accordance with the Cayman Constitutional Documents, subject to applicable law), to complete an initial business combination.

As of the date of this proxy statement/prospectus, Inflection Point had an aggregate of 25,300,000 Inflection Point Class A Shares and 8,433,333 Inflection Point Class B Shares issued and outstanding.

Inflection Point’s securities are traded on Nasdaq under the symbols “IPFX,” “IPFXU” and “IPFXW.” Inflection Point’s principal executive offices are located at 1680 Michigan Avenue Suite 700 #1031, Miami Beach, FL 33139, and its phone number is (212) 295-5830.

PubCo

IPFX PubCo, Inc. is a Delaware corporation and direct, wholly owned subsidiary of Inflection Point incorporated on June 4, 2026. Pursuant to the Business Combination Agreement, certain Quantum Space equity securities will be contributed to PubCo, which PubCo will subsequently contribute to Inflection Point, resulting in a combined company whereby Quantum Space will continue as a subsidiary of Inflection Point and Inflection Point will continue as a wholly owned subsidiary of PubCo, in an umbrella partnership C corporation structure, in which substantially all of the assets and the business of the combined company will be held by Quantum Space OpCo and its subsidiaries.

PubCo’s principal executive offices are located at 1680 Michigan Avenue Suite 700 #1031, Miami Beach, FL 33139, and its phone number is (212) 295-5830.

Merger Sub

IPFX Merger Sub, Inc. is a Delaware corporation and direct, wholly owned subsidiary of PubCo incorporated on June 4, 2026. Pursuant to the Merger, Merger Sub will merge with and into Inflection Point, with Inflection Point surviving as a wholly owned subsidiary of PubCo.

Merger Sub’s principal executive offices are located at 1680 Michigan Avenue Suite 700 #1031, Miami Beach, FL 33139, and its phone number is (212) 295-5830.

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Quantum Space

Quantum Space, LLC is a Delaware limited liability company organized in 2021. Quantum Space is building the next generation of advanced maneuverable spacecraft for national security, civil and commercial space operations. Its mission centers on the Ranger platform: a highly maneuverable spacecraft designed to address the needs of national security and commercial operators. With patented propulsion, extended on-orbit endurance, and modular flexibility, Ranger is being engineered to outmaneuver legacy satellites and operate dynamically across diverse mission sets. Quantum Space’s principal executive offices are located at 801 Thompson Avenue, Rockville, MD 20852 and its phone number is (240) 956-4580. Quantum Space’s website address is www.quantumspaceinc.com. Information contained on, or that can be accessed through, our website is not incorporated by reference into this proxy statement/prospectus, and you should not consider information on our website to be part of this proxy statement/prospectus.

The Proposals to be Submitted at the Extraordinary General Meeting

The Business Combination Proposal

As discussed in this proxy statement/prospectus, Inflection Point is asking its shareholders to approve by ordinary resolution the Business Combination Agreement, a copy of which is attached to this proxy statement/prospectus as Annex A. The Business Combination Agreement provides for, among other things, following the Domestication of Inflection Point to Delaware as described below, the merger of Merger Sub with and into Inflection Point, with Inflection Point surviving as a wholly owned subsidiary of PubCo, and the contribution of certain Quantum Space equity securities to PubCo, which PubCo will subsequently contribute to Inflection Point, resulting in a combined company whereby Quantum Space will continue as a subsidiary of Inflection Point and Inflection Point will continue as a wholly owned subsidiary of PubCo, in an umbrella partnership C corporation (“Up-C”) structure, in which substantially all of the assets and the business of the combined company will be held by Quantum Space OpCo and its subsidiaries, in accordance with the terms and subject to the conditions of the Business Combination Agreement as more fully described elsewhere in this proxy statement/prospectus. After consideration of the factors identified and discussed in the section entitled “Proposal No. 1 — The Business Combination Proposal — Inflection Point Board’s Reasons for the Approval of the Business Combination,” the Inflection Point Board concluded that the Business Combination met the requirements disclosed in the prospectus for the IPO.

Organizational Structure

In connection with the completion of the Business Combination, Inflection Point will provide its Public Shareholders the opportunity to redeem their Public Shares on the terms and conditions set forth in the Business Combination Agreement and the Cayman Constitutional Documents. Inflection Point will complete the Redemption of properly tendered Public Shares at least one day prior to the Domestication.

Prior to and as a condition of the Closing, pursuant to the Domestication, Inflection Point will change its jurisdiction of incorporation by migrating to and domesticating as a Delaware corporation in accordance with Section 388 of the DGCL, as amended, and the Companies Act. For more information, see the section of this proxy statement/prospectus entitled “Proposal No. 2 — The Domestication Proposal.”

Up-C Structure and Tax Receivable Agreement

Following the Closing, the combined company will be organized in an umbrella partnership C corporation (“Up-C”) structure, in which substantially all of the assets and the business of the combined company will be held by Quantum Space OpCo and its subsidiaries. New Quantum Space will have no material assets other than its indirect ownership of Quantum Space Common Units and Company Preferred Units held through Post-Domestication Inflection Point. The Up-C structure was selected to permit certain pre-Closing equityholders of Quantum Space to retain a direct ownership interest in Quantum Space OpCo (in the form of Quantum Space Common Units paired with non-economic voting shares of New Quantum Space) and to facilitate tax-efficient structuring, including the potential for step-up in tax basis of Quantum Space OpCo’s assets upon future exchanges of Quantum Space Common Units for shares of New Quantum Space Class A Common Stock.

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The sole Up-C Seller is an entity (or entities) affiliated with Dr. Kam Ghaffarian, Executive Chairman and Co-Founder of Quantum Space, who, together with his affiliated entities, is expected to beneficially own more than 50% of New Quantum Space Common Stock and to be the controlling stockholder of New Quantum Space following the Closing. As an Up-C Seller, such entity (or entities) will retain a direct ownership interest in Quantum Space OpCo consisting of Quantum Space Common Units paired with shares of New Quantum Space Class B-2 Common Stock, which carry ten votes per share. Each Quantum Space Common Unit, when paired with one share of New Quantum Space Class B-2 Common Stock, is exchangeable, in tandem with the cancellation of the paired share of New Quantum Space Class B-2 Common Stock, for one share of New Quantum Space Class A-2 Common Stock on a one-for-one basis, or, at New Quantum Space’s election, for cash, subject to the terms and conditions of the A&R Operating Agreement. Post-Domestication Inflection Point, which will be a wholly owned subsidiary of New Quantum Space, will serve as the sole managing member of Quantum Space OpCo following the Closing.

At the Closing, New Quantum Space, Quantum Space OpCo and each Participating TRA Holder will enter into the Tax Receivable Agreement, pursuant to which New Quantum Space will be obligated to pay the Participating TRA Holders 85% of the net cash tax savings, if any, that New Quantum Space realizes as a result of certain covered tax assets, including existing tax basis in certain assets of Quantum Space OpCo, tax basis adjustments resulting from future exchanges of Quantum Space Common Units for shares of New Quantum Space Class A Common Stock, and certain other tax benefits related to entering into the Tax Receivable Agreement and making payments thereunder. Payments under the Tax Receivable Agreement are expected to be substantial and are not conditioned upon the Participating TRA Holders’ continued ownership interest in New Quantum Space or Quantum Space OpCo. The obligation to make payments may also be accelerated and become immediately due and payable if New Quantum Space exercises its right to terminate the Tax Receivable Agreement. Such payments will reduce the amount of cash available to New Quantum Space and may have an adverse impact on New Quantum Space’s liquidity and ability to pay operating expenses and other obligations, including debt and taxes. As of the Closing, the sole Participating TRA Holder will be an entity (or entities) affiliated with Dr. Ghaffarian. To the extent that any Incentive Units held by Dr. Ghaffarian convert to Quantum Space Common Units in connection with the Founder Incentive Arrangement, Dr. Ghaffarian will become a Participating TRA Holder with respect to such Common Units. See “Risk Factors — Risks Relating to New Quantum Space’s Organizational Structure” and “The Business Combination Proposal — Related Agreements — Tax Receivable Agreement” for additional information.

The Up-C structure allows the sole Up-C Seller, an entity (or entities) affiliated with Dr. Kam Ghaffarian, who is expected to be the controlling stockholder of New Quantum Space following the Closing, to retain a portion of its equity ownership in Quantum Space OpCo, an entity that is classified as a partnership for U.S. federal income tax purposes, in the form of retained Quantum Space Common Units. As a result, future taxable income of Quantum Space OpCo that is allocated to the sole Up-C Seller will be taxed on a flow-through basis and therefore will generally not be subject to corporate U.S. federal income taxes at the entity level. In contrast, Post-Domestication Inflection Point (which will join in New Quantum Space’s filing of consolidated U.S. federal income tax returns) will be subject to U.S. federal, state and local corporate income tax on its allocable share of Quantum Space OpCo’s taxable income. Quantum Space OpCo is also expected to make cash distributions to its members, including the sole Up-C Seller, in amounts at least sufficient to cover taxes on their allocable shares of its net taxable income (see “Risk Factors — Risks Relating to New Quantum Space’s Organizational Structure”). Additionally, because the sole Up-C Seller may exchange its retained Quantum Space Common Units, together with an equal number of shares of New Quantum Space Class B-2 Common Stock (which will be cancelled), for shares of New Quantum Space Class A Common Stock on a one-for-one basis or, at New Quantum Space’s election, for cash (in each case subject to the terms and conditions of the A&R Operating Agreement, including applicable lock-up periods), the Up-C structure also provides the sole Up-C Seller with potential liquidity that holders of nonpublicly traded limited liability companies are not typically afforded.

New Quantum Space’s acquisition of Quantum Space Common Units pursuant to any such exchange is expected to result in adjustments to the tax basis of certain tangible and intangible assets of Quantum Space OpCo, and such adjustments will generally be allocated to New Quantum Space. These adjustments would not have been available to New Quantum Space absent its acquisition of Quantum Space Common Units and are expected to reduce the amount of taxes that New Quantum Space would otherwise be required to pay in the future. Under the Tax Receivable Agreement, New Quantum Space will be required to pay the sole Participating TRA Holder, an entity (or entities) affiliated with Dr. Ghaffarian, 85% of such cash tax savings, if any, that we actually realize or in certain circumstances are deemed to realize (calculated using certain assumptions). Assuming no material changes in the relevant tax law and that New Quantum Space earns sufficient taxable income to realize all tax benefits that are subject to the Tax Receivable

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Agreement, New Quantum Space expects that such tax savings would aggregate to approximately $84.0 million over 15 years from the date of the Business Combination, based on a $10.00 per share trading price of New Quantum Space Class A Common Stock, and assuming all future redemptions or exchanges would occur after the consummation of the Business Combination at the same assumed price per share. Under such scenario, subject to certain assumptions, New Quantum Space would be required to pay approximately 85% of such amount, or approximately $71.4 million, over such 15-year period. If New Quantum Space were to elect to terminate the Tax Receivable Agreement immediately after the Business Combination, assuming the market value of New Quantum Space Class A Common Stock is equal to $10.07 per share, it is currently estimated that New Quantum Space would be required to make an accelerated payment of approximately $52.0 million, which payment may be made significantly in advance of, and may materially exceed, the actual realization, if any, of the future tax benefits to which the payment relates.

Payments under the Tax Receivable Agreement are obligations of New Quantum Space and not of Quantum Space OpCo, are not conditioned on the sole Participating TRA Holder’s continued ownership of Quantum Space Common Units or New Quantum Space securities, and will continue until all covered tax benefits have been utilized or have expired. New Quantum Space may elect to terminate the Tax Receivable Agreement early, in which case it would be required to make an immediate payment equal to the present value (discounted at SOFR plus 100 basis points) of all projected future payments, calculated using certain assumptions, including an assumption that New Quantum Space will have sufficient taxable income to fully use all of the covered tax benefits. In addition, upon a change of control or a material breach by New Quantum Space of its material obligations, future payments would be calculated using similar assumptions rather than on the basis of actual cash tax savings. As a result, New Quantum Space could be required to make payments that are significantly in advance of, and that materially exceed, the actual tax benefits it realizes, including payments in excess of 85% of its actual cash tax savings, which could have a substantial negative effect on its liquidity and could have the effect of deferring or preventing certain mergers, asset sales or other changes of control. Because the sole Participating TRA Holder is affiliated with Dr. Ghaffarian, who is expected to control New Quantum Space following the Closing, Dr. Ghaffarian will have significant influence over decisions that affect the timing and amount of payments under the Tax Receivable Agreement, including whether and when to terminate it, and his interests in those decisions may conflict with those of New Quantum Space’s other stockholders. See “Risk Factors — Risks Relating to New Quantum Space’s Organizational Structure.”

Participating TRA Holders may have conflicting interests with holders of shares of New Quantum Space Class A Common Stock because of their interest in the Tax Receivable Agreement as well as the fact that they hold their economic interest in the business through Quantum Space OpCo, rather than through New Quantum Space. For example, the Participating TRA Holders may have a different tax position from New Quantum Space, which could influence their decisions regarding whether and when New Quantum Space should dispose of assets or incur new or refinance existing indebtedness, especially in light of the existence of the Tax Receivable Agreement, and whether and when New Quantum Space should undergo certain changes of control within the meaning of the Tax Receivable Agreement or terminate the Tax Receivable Agreement. In addition, the ten-to-one voting disparity between Class A-2/Class B-2 Common Stock and Class A-1/Class B-1 Common Stock results in the Up-C Sellers having voting power that is disproportionately greater than their economic interest. See “Risk Factors — Risks Relating to New Quantum Space’s Organizational Structure” for a discussion of the risks associated with the Up-C structure and Tax Receivable Agreement.

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The following diagrams illustrate in simplified terms the current structure of Inflection Point and Quantum Space and the expected structure of New Quantum Space immediately following the Closing.

Simplified Pre-Combination Structure

The Merger

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Simplified Post-Combination Structure

Business Combination Consideration

The aggregate consideration to be received by the Sellers in respect of the Business Combination consists of a number of Quantum Space Common Units and shares of New Quantum Space Class A Common Stock equal, in the aggregate, to the quotient of (a) $600,000,000, divided by (b) the per-share redemption price applicable to an Inflection Point Class A Share elected to be redeemed, as calculated in accordance with the Investment Management Trust Agreement and Inflection Point’s amended and restated memorandum and articles of association. For the avoidance of doubt, the paired non-economic voting shares of New Quantum Space Class B-1 Common Stock and New Quantum Space Class B-2 Common Stock purchased by Up-C Sellers shall not constitute Aggregate Consideration.

The Pre-Funded Warrant Consideration to be paid in, or in connection with, the Merger to a holder in respect of each Pre-Funded Warrant shall be one or more New Quantum Space Series A Warrants to purchase a number of shares of New Quantum Space Common Stock (on otherwise the same terms as applicable to the New Quantum Space Series A Warrants issued to the Closing PIPE Investor in the Series A Preferred Stock Investment) equal to the quotient of (i) the aggregate exercise price of such Pre-Funded Warrant immediately prior to the Effective Time, divided by (ii) $12.00.

Immediately prior to the Closing, Quantum Space will effectuate a Recapitalization, pursuant to which, among other things, all outstanding equity securities of Quantum Space, other than the Pre-Funded Preferred Units and the Pre-Funded Warrant issued to the Pre-Funded Investors in the Pre-Funded Investment (as defined below), will be converted or exchanged into Quantum Space Common Units, as set forth in the Seventh Amended and Restated Limited Liability Company Operating Agreement of Quantum Space, the result of which, among other things, will be that the Sellers (as defined in the Business Combination Agreement) will collectively hold Quantum Space Common Units as of immediately prior to the Closing.

Closing Conditions

The Business Combination is subject to the satisfaction or waiver of certain customary closing conditions, including, among others, approval of the Business Combination and related agreements and transactions by the respective equityholders of Inflection Point and Quantum Space, the completion of the Domestication, and the performance by Inflection Point and Quantum Space in all material respects all of their respective obligations and covenants under the Business Combination Agreement.

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For further details, see “Proposal No. 1 — The Business Combination Proposal — Business Combination Agreement — Closing Conditions.”

Related Agreements

This section describes certain additional agreements entered into or to be entered into pursuant to the Business Combination Agreement. For additional information, see “Proposal No. 1 — The Business Combination Proposal — Related Agreements.”

Amended and Restated Registration Rights Agreement

At the Closing, PubCo, Inflection Point, the Sponsor, certain Closing PIPE Investors and certain securityholders of Quantum Space will enter into the A&R Registration Rights Agreement, pursuant to which, among other things, the Sponsor, such Closing PIPE Investors and such securityholders will be granted certain customary registration rights, on the terms and subject to the conditions therein, with respect to securities of New Quantum Space that they will hold following the Business Combination.

Sponsor Support Agreement

Concurrently with the execution of the Business Combination Agreement, Inflection Point entered into the Sponsor Support Agreement with Quantum Space and the Sponsor, pursuant to which the Sponsor agreed to, among other things, vote in favor of adoption of the Transaction Proposals and otherwise support the Business Combination. Certain current and former officers and directors of Inflection Point previously entered into the Letter Agreement with Inflection Point in connection with Inflection Point’s initial public offering, pursuant to which they agreed to vote any Inflection Point Ordinary Shares held by them in favor of the Business Combination.

Pursuant to the Sponsor Support Agreement, until the earliest of the Closing, termination of the Business Combination Agreement or the liquidation of Inflection Point, the Sponsor shall not (i) sell, offer to sell, contract or agree to sell, hypothecate, pledge, grant any option to purchase or otherwise dispose of or agree to dispose of, directly or indirectly, any Subject Securities (as defined in the Sponsor Support Agreement) owned by the Sponsor, or (ii) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Subject Securities owned by the Sponsor without the prior written consent of Quantum Space, unless such transfer is deemed a Permitted Transfer (as defined in the Sponsor Support Agreement).

In addition, pursuant to the Sponsor Support Agreement, the Sponsor has agreed not to commence, join in, facilitate, assist or encourage, and has agreed to take all actions necessary to opt out of any class in any class action with respect to, any claim, derivative or otherwise, against Inflection Point, Quantum Space or any of their respective successors or directors, (a) challenging the validity of, or seeking to enjoin the operation of, any provision of the Sponsor Support Agreement or (b) alleging a breach of any fiduciary duty of any person in connection with the evaluation, negotiation or entry into the Sponsor Support Agreement, the Business Combination Agreement or the Business Combination.

Furthermore, pursuant to the Sponsor Support Agreement, the Sponsor agreed to waive, subject to the consummation of the Business Combination, any and all anti-dilution rights with respect to the rate that the Founder Shares convert into Inflection Point Class A Shares in connection with the Business Combination.

Member Support Agreement

Concurrently with the execution of the Business Combination Agreement, Inflection Point, Quantum Space and certain holders of equity securities of Quantum Space (the “Required Members”) entered into the Member Support Agreement (the “Member Support Agreement”), pursuant to which the Required Members agreed to, among other things, vote (or act by written consent) to approve and adopt the Business Combination Agreement and the consummation of the Business Combination, including the Recapitalization, and otherwise support the Business Combination.

Pursuant to the Member Support Agreement, until the earliest of the Closing, termination of the Business Combination Agreement or the liquidation of Quantum Space, no Required Member shall (i) sell, offer to sell, contract or agree to sell, hypothecate, pledge, grant any option to purchase or otherwise dispose of or agree to dispose of, directly or indirectly, any Subject Securities (as defined in the Member Support Agreement), or (ii) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Subject Securities without the prior written consent of Quantum Space and Inflection Point, unless such transfer is deemed a Contemplated Transfer or a Permitted Transfer (each as defined in the Member Support Agreement).

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In addition, pursuant to the Member Support Agreement, each Required Member has agreed not to commence, join in, facilitate, assist or encourage, and has agreed to take all actions necessary to opt out of any class in any class action with respect to, any claim, derivative or otherwise, against Inflection Point, Quantum Space or any of their respective successors or directors, (a) challenging the validity of, or seeking to enjoin the operation of, any provision of the Member Support Agreement or (b) alleging a breach of any fiduciary duty of any person in connection with the evaluation, negotiation or entry into the Member Support Agreement, the Business Combination Agreement or the Business Combination. Each Required Member has also waived and agreed not to exercise any rights of appraisal or rights to dissent from the Business Combination that they may have in respect of the Subject Securities.

Sponsor Lock-Up Agreement

At the Closing, the Sponsor and New Quantum Space will enter into the Sponsor Lock-Up Agreement, pursuant to which the Sponsor and its permitted assigns will agree, (i) with respect to any Sponsor Lock-Up Founder Shares, prior to the date that is six months after the Closing Date, or (ii) with respect to any Sponsor Lock-Up Warrants, prior to the date that is 30 days after the Closing Date, not to, without the prior written consent of the board of directors of New Quantum Space, (a) sell, pledge, grant any option to purchase or otherwise dispose of, (b) enter into any swap or other transfer arrangement in respect of the Sponsor Lock-Up Securities or (c) take any action in furtherance of any of the matters described in the foregoing clauses (a) or (b). The Sponsor Lock-Up Agreement provides for certain permitted transfers, including but not limited to, transfers to certain affiliates or family members, subject to certain conditions, or the exercise of certain stock options or warrants.

Seller Lock-Up Agreement

At the Closing, New Quantum Space and the Lock-Up Holders will enter into the Seller Lock-Up Agreement, pursuant to which the Lock-Up Holders will agree not to, without the prior written consent of the board of directors of New Quantum Space, prior to the date that is six months after the Closing (i) sell, pledge, grant any option to purchase or otherwise dispose of (a) any shares of New Quantum Space Common Stock held immediately after the consummation of the Business Combination, (b) any shares of New Quantum Space Common Stock issuable upon exercise of such options to purchase shares of New Quantum Space Common Stock held immediately after the consummation of the Business Combination, or (c) any securities convertible into, or exercisable, redeemable or exchangeable for, New Quantum Space Common Stock held by such holder immediately after the consummation of the Business Combination (the shares of New Quantum Space Common Stock and securities specified in clauses (a) through (c), collectively, the “Lock-Up Securities”), (ii) enter into any swap or other transfer arrangement in respect of any Lock-Up Securities or (iii) take any action in furtherance of any of the matters described in the foregoing clauses (i) or (ii). The Seller Lock-Up Agreement provides for certain permitted transfers, including but not limited to, transfers to certain affiliates or family members, subject to certain conditions, or the exercise of certain stock options or warrants.

Pre-Funded SPA

In connection with the transactions contemplated by the Business Combination Agreement, on the Signing Date, Quantum Space entered into the Pre-Funded SPAs with certain accredited investors named therein, including Inflection Point Fund. Pursuant to the Pre-Funded SPAs, the Pre-Funded Investors agreed, among other things, to purchase, and Quantum Space issued and sold, an aggregate of 5,882,352 Pre-Funded Preferred Units and Pre-Funded Warrants to purchase 5,882,352 Quantum Space Common Units, at an initial exercise price of $12.00 per unit, substantially concurrently with the execution and delivery of the Business Combination Agreement for an aggregate purchase price of approximately $60 million.

Series A SPA

In connection with the transactions contemplated by the Business Combination Agreement, on the Signing Date, PubCo, Quantum Space and certain accredited investors named therein entered into the Series A SPAs. Pursuant to the Series A SPAs, the Closing PIPE Investors agreed, among other things, to purchase, at Closing, an aggregate of (i) 19,999,994 shares of Series A Preferred Stock, having the rights, preferences and privileges set forth in the Certificate of Designation and (ii) New Quantum Space Series A Warrants to purchase an aggregate of 19,999,994 shares of New Quantum Space Class A-1 Common Stock, for an aggregate purchase price of $240 million. Each share of Series A Preferred Stock will have a stated value of $12.00.

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The Domestication Proposal

As a condition to the consummation of the Business Combination pursuant to the terms of the Business Combination Agreement, Inflection Point must complete the Domestication. The Domestication Proposal, if approved by the Inflection Point Class B Shareholders, will authorize a change of Inflection Point’s jurisdiction of incorporation from the Cayman Islands to the State of Delaware. Accordingly, while Inflection Point is currently governed by the Companies Act, upon the Domestication, Inflection Point will be governed by the DGCL. There are differences between Cayman Islands corporate law and Delaware corporate law as well as between the Cayman Constitutional Documents and the Proposed Organizational Documents. Accordingly, Inflection Point encourages shareholders to carefully review the information in “Proposal No. 2 — The Domestication Proposal — Comparison of Shareholder Rights under Applicable Corporate Law Before and After Domestication.”

Immediately prior to the Domestication, pursuant to the Cayman Constitutional Documents and the Sponsor Support Agreement, the Inflection Point Class B Shareholders will elect to convert each of the then issued and outstanding Inflection Point Class B Shares, on a one-for-one basis, into Inflection Point Class A Shares. At the effective time of the Domestication, (i) each of the then issued and outstanding Inflection Point Class A Shares will convert automatically, on a one-for-one basis, into shares of Post-Domestication Inflection Point Common Stock; (ii) each of the then issued and outstanding Inflection Point Warrants will convert automatically into a Post-Domestication Warrant; and (iii) each of the then issued and outstanding Inflection Point Units consisting of one Inflection Point Class A Share and one-third of one Inflection Point Warrant will be cancelled and will thereafter entitle the holder thereof to one share of Post-Domestication Inflection Point Common Stock and one-third of one Post-Domestication Warrant.

The Inflection Point Board has unanimously approved the Domestication Proposal. For additional information, see the section entitled “Proposal No. 2 — The Domestication Proposal” of this proxy statement/prospectus.

The Merger Proposal

Inflection Point will ask its shareholders to approve the Merger Proposal to approve the Merger, which will be consummated only after the Domestication under the DGCL by filing a Certificate of Merger with the Delaware Secretary of State. No Cayman statutory merger or Cayman Plan of Merger will be effected. The Inflection Point Board has unanimously approved the Merger Proposal. Approval of the Merger Proposal is a condition to the consummation of the Business Combination.

The Domesticated Organizational Documents Proposal

Inflection Point will ask its Class B Shareholders to approve the Domesticated Organizational Documents Proposal in connection with the replacement of the Cayman Constitutional Documents, with the Proposed Domesticated Organizational Documents, under the DGCL. The Inflection Point Board has unanimously approved the Domesticated Organizational Documents Proposal and believes such proposal is necessary to adequately address the needs of Inflection Point following the Domestication. Approval of the Domesticated Organizational Documents Proposal is a condition to the consummation of the Business Combination.

The Advisory Organizational Documents Proposals

Inflection Point will ask its shareholders to approve on a non-binding advisory basis eight separate Advisory Organizational Documents Proposals in connection with the replacement of the Cayman Constitutional Documents, compliant with the Companies Act, with the Proposed Organizational Documents, under the DGCL, which will govern the rights of stockholders of PubCo following the Merger. The Inflection Point Board has unanimously approved the Advisory Organizational Documents Proposals and believes such proposals are necessary to adequately address the needs of Quantum Space after the Business Combination. Approval of the Advisory Organizational Documents Proposals is not a condition to the consummation of the Business Combination.

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A brief summary of each of the Advisory Organizational Documents Proposals is set forth below. These summaries are qualified in their entirety by reference to the complete text of the Proposed Organizational Documents.

Advisory Organizational Documents Proposal 5A — Under the Proposed Organizational Documents, New Quantum Space would be authorized to issue 750,000,000 shares, consisting of (A) 500,000,000 shares of New Quantum Space Class A-1 Common Stock, (B) 50,000,000 shares of New Quantum Space Class A-2 Common Stock, (C) 50,000,000 shares of New Quantum Space Class B-1 Common Stock, (D) 50,000,000 shares of New Quantum Space Class B-2 Common Stock, and (E) 100,000,000 shares of New Quantum Space Preferred Stock, each with a par value of $0.0001 per share.

Advisory Organizational Documents Proposal 5B — The Proposed Organizational Documents would authorize a multiple class common stock structure pursuant to which the holders of New Quantum Space Class A-1 Common Stock and New Quantum Space Class B-1 Common Stock will be entitled to one vote per share and holders of New Quantum Space Class A-2 Common Stock and New Quantum Space Class B-2 Common Stock will be entitled to ten votes per share.

Advisory Organizational Documents Proposal 5C — The Proposed Organizational Documents would include a provision providing that each outstanding share of New Quantum Space Class A-2 Common Stock and New Quantum Space Class B-2 Common Stock shall automatically convert into one share of New Quantum Space Class A-1 Common Stock or New Quantum Space Class B-1 Common Stock, as applicable, upon the earliest to occur of (i) the date that is seven years from the effectiveness of the Proposed Organizational Documents and (ii) the first date when the High-Vote Holders (as defined in the Proposed Organizational Documents) collectively cease to own at least 33.33% of the number of shares of New Quantum Space Class A-2 Common Stock and New Quantum Space Class B-2 Common Stock collectively held by them as of immediately following the Closing.

Advisory Organizational Documents Proposal 5D — The Proposed Organizational Documents would adopt (a) Delaware as the exclusive forum for certain stockholder litigation and (b) the federal district courts of the United States of America as the exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act.

Advisory Organizational Documents Proposal 5E — The Proposed Charter would require the affirmative vote of at least two-thirds of the voting power of the then-outstanding shares of New Quantum Space to amend, alter, repeal or rescind any provision of the Proposed Charter. In addition, the Proposed Charter would require the affirmative vote of at least a majority of the following classes of holders: (i) the holders of New Quantum Space Class B-1 Common Stock and New Quantum Space Class B-2 Common Stock, (ii) the holders of New Quantum Space Class A-2 Common Stock and New Quantum Space Class B-2 Common Stock, or (iii) the holders of New Quantum Space Class A-1 Common Stock, in each case, to amend, alter, change, repeal or adopt any provision in a manner that adversely affects such class or classes of holders. The Proposed Charter would also permit the New Quantum Space Board to amend, alter, repeal or rescind the Proposed Bylaws without the consent or vote of the stockholders of New Quantum Space. The Proposed Bylaws would permit the stockholders of New Quantum Space to adopt, amend or repeal the Proposed Bylaws by the affirmative vote of the holders of at least two-thirds of the voting power of the outstanding shares of voting stock entitled to vote of New Quantum Space.

Advisory Organizational Documents Proposal 5F — The Proposed Charter would require the affirmative vote of holders of at least two-thirds of the voting power of the outstanding shares of capital stock entitled to vote generally in the election of directors to remove a director, with or without cause.

Advisory Organizational Documents Proposal 5G — The Proposed Charter would, from and after the date that New Quantum Space ceases to qualify as a controlled company, prohibit stockholder action by written consent in lieu of a meeting and require stockholders to take action at an annual or special meeting, provided that any action required or permitted to be taken by the holders of (x) any series of New Quantum Space Preferred Stock or (y) New Quantum Space Class A-2 Common Stock, New Quantum Space Class B-1 Common Stock or New Quantum Space Class B-2 Common Stock may be taken without a meeting if signed by the holders of the relevant series of New Quantum Space Preferred Stock or class of New Quantum Space Common Stock, as applicable, having not less than the minimum number of votes necessary to authorize such action at a meeting at which all shares entitled to vote thereon were present and voted in compliance with the DGCL.

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Advisory Organizational Documents Proposal 5H — The Proposed Charter would (1) change the corporate name from “IPFX PubCo, Inc.” to “Quantum Space, Inc.”, (2) make New Quantum Space’s corporate existence perpetual and (3) remove certain provisions related to Inflection Point’s status as a blank check company that will no longer be applicable upon consummation of the Business Combination.

The Director Election Proposal

Inflection Point is proposing that its shareholders approve, effective upon the Closing, the election of four directors to serve on the New Quantum Space Board until the first annual meeting of stockholders of New Quantum Space to be held following the date of Closing, and until their respective successors are duly elected and qualified.

For additional information, see the section of this proxy statement/prospectus entitled “The Director Election Proposal.”

New Quantum Space Incentive Plan Proposal

Inflection Point is asking its shareholders to approve the New Quantum Space Incentive Plan and the material terms thereunder. Subject to adjustment in connection with the payment of a stock dividend, a stock split or subdivision or combination of the shares of common stock, or a reorganization or reclassification of the Company’s common stock, the aggregate number of shares of common stock which may be issued or transferred pursuant to awards under the New Quantum Space Incentive Plan is the sum of (i) approximately 16,124,162 shares of common stock, (representing ten percent (10%) of the post-closing fully-diluted shares of common stock of the Company outstanding as of immediately after the Closing), (ii) the number of shares underlying Substituted Quantum Awards, (iii) 4,500,000 shares of common stock underlying the Founder Incentive Arrangement (as defined above) allocated to the Management Participants (as defined below), and (iv) an automatic annual increase on the first day of each year beginning in 2027 and ending in (and including) 2036 equal to the lesser of (A) five percent (5%) of the Shares outstanding on a fully diluted basis on the last day of the immediately preceding fiscal year; and (B) such smaller number of shares of common stock as determined by the New Quantum Space Board or the Committee. The full text of the New Quantum Space Incentive Plan is attached hereto as Annex G.

For additional information, see the section of this proxy statement/prospectus entitled “New Quantum Space Incentive Plan Proposal.”

New Quantum Space Employee Stock Purchase Plan Proposal

Inflection Point is asking its stockholders to approve the ESPP and the material terms thereunder. The initial aggregate number of shares of New Quantum Space Common Stock that will be available for issuance under the ESPP will be approximately 3,224,832, equal to 2% of the fully diluted, as-converted shares of New Quantum Space Common Stock outstanding as immediately following the Closing), plus an annual increase on each January 1 for the ten (10) calendar years immediately after the first offering date equal to the lesser of (A) one percent (1%) of the shares of New Quantum Space Common Stock outstanding on a fully diluted basis on the immediately preceding December 31 and (B) such smaller number of shares of New Quantum Space Common Stock as determined by the New Quantum Space Board. The full text of the ESPP is attached hereto as Annex H.

For additional information, see the section of this proxy statement/prospectus entitled “New Quantum Space Employee Stock Purchase Plan Proposal.”

The Adjournment Proposal

If, based on the tabulated vote, there are not sufficient votes at the time of the extraordinary general meeting to authorize Inflection Point to consummate the Business Combination (because any of the Condition Precedent Proposals have not been approved (including as a result of the failure of any other cross-conditioned Condition Precedent Proposals to be approved)), the chairman of the Inflection Point Board may submit a proposal to adjourn the extraordinary general meeting to a later date or dates, if necessary, (i) to permit further solicitation and vote of proxies in the event that there are insufficient votes for, or otherwise in connection with the approval of one or more proposals at the extraordinary general meeting, (ii) if Inflection Point determines that one or more of the conditions to Closing is not or will not be satisfied or waived or (iii) to facilitate the Domestication, the Merger or any other transaction contemplated by the Business Combination Agreement or the related agreements.

For additional information, see the section of this proxy statement/prospectus entitled “The Adjournment Proposal.”

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Transfer Restrictions

The Business Combination Agreement contemplates that, at the Closing, New Quantum Space and the Sponsor will enter into the Sponsor Lock-Up Agreement, and New Quantum Space and the Lock-Up Holders will enter into the Seller Lock-Up Agreement (together with the Sponsor Lock-Up Agreement, the “Lock-Up Agreements”), pursuant to which the parties thereto will agree to restrictions on transfer with respect to specified securities of New Quantum Space. An aggregate of 8,433,333 Sponsor Lock-Up Securities and approximately 56,200,289 Lock-Up Securities will be subject to six-month transfer restrictions, representing approximately 69.3% of the total issued and outstanding shares of New Quantum Space Common Stock following the Business Combination, assuming the 0% Redemption Scenario. The 5,000,000 Sponsor Lock-Up Warrants, together with any shares of New Quantum Space Class A-1 Common Stock issued or issuable upon exercise thereof, will be subject to transfer restrictions for 30 days following the Closing. The Sponsor Lock-Up Agreement will amend and supersede Section 7 of the Letter Agreement, which will be of no further force or effect as of the Closing.

The transfer restrictions contained in the Lock-Up Agreements are summarized in the table below:

___________

(1)     The Sponsor Lock-Up Agreement permits specified transfers, subject to its terms, including transfers to New Quantum Space’s officers and directors and their affiliates and family members, to members or partners of the Sponsor or their affiliates, to affiliates of the Sponsor, or to employees of such affiliates; transfers to investment funds or vehicles the holder or its affiliates control or manage; gifts to a qualifying trust or charitable organization; transfers by will or intestacy or pursuant to a qualified domestic relations order; transfers to a wholly owned entity, nominee or custodian; transfers in connection with any legal, regulatory or other order; in the case of an entity that is a trust, transfers to a trustor or beneficiary of the trust or to the estate of a beneficiary of the trust; distributions to, and dissolution transfers by, entity holders; the “cashless” or “net” exercise of options or warrants, or the vesting of stock awards, and related transfers to pay the exercise price of options or warrants or taxes due upon such exercise or vesting, with all resulting shares remaining subject to the lock-up; transfers to New Quantum Space under repurchase or forfeiture arrangements upon termination of service; the establishment of a Rule 10b5-1 trading plan under the Exchange Act that does not permit sales during the Lock-Up Period and as to which no public announcement or filing is voluntarily made or required during the Lock-Up Period; transfers in a liquidation, merger, share exchange or similar transaction in which all securityholders may exchange their shares; and specified transfers to satisfy tax obligations of a holder or its direct or indirect owners, solely to the extent necessary, arising from a change in the U.S. Internal Revenue Code (or the Treasury Regulations) after the date of the Business Combination

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Agreement that prevents the Business Combination from qualifying as a reorganization under Section 368 of the Code (and for which no similar tax-free treatment is available under any successor or other provision of the Code or the Treasury Regulations). Certain permitted transferees must execute a joinder to the Sponsor Lock-Up Agreement.

(2)     The Seller Lock-Up Agreement permits specified transfers, subject to its terms, including transfers of securities other than the Lock-Up Securities and any equity securities issued or issuable with respect to the Lock-Up Securities by way of a stock dividend, stock split, recapitalization, merger, consolidation or similar transaction; transfers by an individual to affiliates or family members; transfers to investment funds or vehicles the holder or its affiliates control or manage; gifts to a qualifying trust or charitable organization; transfers by will or intestacy or pursuant to a qualified domestic relations order; transfers to a wholly owned entity, nominee or custodian; transfers in connection with any legal, regulatory or other order; transfers by a trust to its trustor or beneficiaries, or to the estate of a beneficiary of the trust; distributions to, and dissolution transfers by, entity holders; the “cashless” or “net” exercise of options or warrants, or the vesting of stock awards, and related transfers to pay the exercise price of options or warrants or taxes due upon such exercise or vesting, with all resulting shares remaining subject to the lock-up; transfers to New Quantum Space under repurchase or forfeiture arrangements upon termination of service; the establishment of a Rule 10b5-1 trading plan under the Exchange Act that does not permit sales during the Lock-Up Period and as to which no public announcement or filing is voluntarily made or required during the Lock-Up Period; transfers in a liquidation, merger, share exchange or similar transaction in which all securityholders may exchange their shares; and transfers to satisfy U.S. federal, state or local income tax obligations of a holder or its direct or indirect owners arising directly from the Business Combination (including any gain recognized in connection with the Seller Contributions, the Recapitalization or the exchange of equity interests in Quantum Space for New Quantum Space Common Stock or Quantum Space Common Units), solely to the extent necessary to cover such tax liability, provided that the holder delivers to New Quantum Space, no later than five Business Days prior to the transfer, a certificate setting forth in reasonable detail the amount and calculation of the tax obligation, together with a written opinion or advice from a nationally recognized accounting firm or tax counsel reasonably acceptable to New Quantum Space confirming the obligation, and provided, further, that the number of Lock-Up Securities transferred does not exceed the number necessary to satisfy the obligation based on the volume-weighted average closing price of the New Quantum Space Common Stock for the ten trading days immediately preceding the transfer. Certain permitted transferees must execute a joinder to the Seller Lock-Up Agreement. In addition, the exercise of an exchange or conversion right pursuant to which Quantum Space Common Units, together with the corresponding shares of New Quantum Space Class B-1 or Class B-2 Common Stock, are exchanged for shares of New Quantum Space Class A-1 or Class A-2 Common Stock will be permitted during the Lock-Up Period; however, the Class A-1 or Class A-2 shares received upon the exchange or conversion will remain subject to the transfer restrictions for the remainder of the Lock-Up Period.

Date, Time and Place of the Extraordinary General Meeting

The extraordinary general meeting will be held at [•] Eastern Time, on [•], 2026. The extraordinary general meeting will be held virtually via live webcast at https://www.cstproxy.com/inflectionpointacquisitionVI/2026. For the purposes of Cayman Islands law and the Cayman Constitutional Documents, the physical location of the extraordinary general meeting will be at the offices of White & Case LLP, 1221 Avenue of the Americas, New York, NY 10020.

Registering for the Extraordinary General Meeting

Any shareholder wishing to attend the extraordinary general meeting virtually should register for the extraordinary general meeting by [•], 2026, at 5:00 p.m., Eastern Time. To register for the extraordinary general meeting, please follow these instructions as applicable to the nature of your ownership of Inflection Point Ordinary Shares:

•        If your shares are registered in your name with the Transfer Agent and you wish to attend the online-only meeting, go to https://www.cstproxy.com/inflectionpointacquisitionVI/2026, enter the 12-digit control number included on your proxy card or notice of the extraordinary general meeting and click on the “Click here to preregister for the online meeting” link at the top of the page. Pre-registration is recommended but is not required in order to attend.

•        Beneficial shareholders (those holding shares through a stock brokerage account or by a bank or other nominee) who wish to attend the extraordinary general meeting must obtain a legal proxy by contacting their account representative at the bank, broker, or other nominee that holds their shares and email a copy (a legible photograph is sufficient) of their legal proxy to [email protected]. Beneficial shareholders who email a valid legal proxy will be issued a 12-digit meeting control number that will allow them to register to attend and participate in the online extraordinary general meeting. After contacting the Transfer Agent, a beneficial holder will receive an email prior to the extraordinary general meeting with a link and instructions for entering the extraordinary general meeting online. Beneficial shareholders should contact Continental Stock Transfer & Trust Company at least five business days prior to the extraordinary general meeting date in order to ensure access.

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Voting Power; Record Date

Inflection Point’s shareholders will be entitled to vote or direct votes to be cast at the extraordinary general meeting if they owned Inflection Point Ordinary Shares at the close of business on [•], 2026, which is the record date for the extraordinary general meeting (the “Record Date”). Shareholders will have one vote for each Inflection Point Ordinary Share owned at the close of business on the Record Date. If your shares are held in “street name” or are in a margin or similar account, you should contact your broker, bank or other nominee to ensure that votes related to the shares you beneficially own are properly counted. Inflection Point Warrants do not have voting rights. At the close of business on the Record Date, there were 33,733,333 Inflection Point Ordinary Shares outstanding, of which 25,300,000 were Public Shares, with the rest being held by Inflection Point’s initial shareholders.

Quorum and Vote of Inflection Point Shareholders

A quorum of Inflection Point shareholders is necessary to hold a valid meeting. A quorum will be present at the Inflection Point extraordinary general meeting if the holders of at least one-third of the issued and outstanding shares entitled to vote at the extraordinary general meeting are represented in person or by proxy or if a corporation or other non-natural person by its duly authorized representative or proxy (which would include presence at the extraordinary general meeting). Abstentions, while considered present for the purposes of establishing a quorum, will not count as votes cast at the extraordinary general meeting and will have the same effect as a vote against the Merger Proposal. Broker non-votes are not considered present for the purposes of establishing a quorum, will not count as votes cast at the extraordinary general meeting, and otherwise will have no effect on a particular proposal, assuming a valid quorum is established, except for the Merger Proposal. Broker non-votes will not be considered present for the purposes of establishing a quorum, will not count as a vote cast at the extraordinary general meeting and will therefore have the same effect as a vote against the Merger Proposal.

As of the Record Date for the extraordinary general meeting, 11,244,445 Inflection Point Ordinary Shares would be required to achieve a quorum.

The Sponsor and Inflection Point Fund have agreed to vote all the Founder Shares and any Public Shares they may hold in favor of all the proposals being presented at the extraordinary general meeting. As of the date of this proxy statement/prospectus, the Sponsor and certain members of the Inflection Point Board own approximately 25.0% of the issued and outstanding Inflection Point Ordinary Shares. As a result, Inflection Point would need only 8,433,334, or approximately 33.3%, of the Public Shares not held by affiliates, to be voted in favor of the Business Combination in order to approve the Business Combination Proposal (assuming all outstanding shares are voted); or no Public Shares not held by affiliates (assuming only the minimum number of shares representing a quorum are voted).

The proposals presented at the extraordinary general meeting require the following votes:

•        Business Combination Proposal — The approval of the Business Combination Proposal requires an ordinary resolution, being the affirmative vote of the holders of a simple majority of the Inflection Point Ordinary Shares who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

•        Domestication Proposal — The approval of the Domestication Proposal requires a special resolution of the Inflection Point Class B Shareholders, being the affirmative vote of holders of at least two-thirds of the Inflection Point Class B Shares who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting. The holders of Inflection Point Class A Shares will have no right to vote on the Domestication Proposal, in accordance with Article 49.2 of the Cayman Constitutional Documents.

•        Merger Proposal — The approval of the Merger Proposal requires the affirmative vote of holders of a majority of the Inflection Point Ordinary Shares outstanding.

•        Domesticated Organizational Documents Proposal — The approval of the Domesticated Organizational Documents Proposal requires a special resolution of the Inflection Point Class B Shareholders, being the affirmative vote of holders of at least two-thirds of the Inflection Point Class B Shares who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting. The holders of Inflection Point Class A Shares will have no right to vote on the Domesticated Organizational Documents Proposal, in accordance with Article 49.2 of the Cayman Constitutional Documents.

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•        Advisory Organizational Documents Proposals — The separate approval of each of the Advisory Organizational Documents Proposals, each of which is a non-binding vote, requires an ordinary resolution, being the affirmative vote of holders of a simple majority of the Inflection Point Ordinary Shares who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

•        Director Election Proposal — The approval of the Director Election Proposal requires an ordinary resolution, being the affirmative vote of the holders of a simple majority of the Inflection Point Ordinary Shares, who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

•        New Quantum Space Incentive Plan Proposal — The approval of the New Quantum Space Incentive Plan Proposal requires an ordinary resolution, being the affirmative vote of the holders of a simple majority of the Inflection Point Ordinary Shares, who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

•        New Quantum Space Employee Stock Purchase Plan Proposal — The approval of the New Quantum Space Employee Stock Purchase Plan Proposal requires an ordinary resolution, being the affirmative vote of the holders of a simple majority of the Inflection Point Ordinary Shares, who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

•        Adjournment Proposal — The approval of the Adjournment Proposal requires an ordinary resolution, being the affirmative vote of the holders of a simple majority of the Inflection Point Ordinary Shares who, being present in person or by proxy and entitled to vote thereon, vote at the extraordinary general meeting.

Abstentions, while considered present for the purposes of establishing a quorum, will not count as votes cast at the extraordinary general meeting and will have the same effect as a vote against the Merger Proposal. Broker non-votes are not considered present for the purposes of establishing a quorum, will not count as votes cast at the extraordinary general meeting, and otherwise will have no effect on a particular proposal, assuming a valid quorum is established, except for the Merger Proposal. Broker non-votes will not be considered present for the purposes of establishing a quorum, will not count as a vote cast at the extraordinary general meeting and will therefore have the same effect as a vote against the Merger Proposal.

Redemption Rights

Pursuant to the Cayman Constitutional Documents, a Public Shareholder may request to redeem all or a portion of its Public Shares for cash in connection with the completion of the Business Combination. As a Public Shareholder, you will be entitled to receive cash for any Public Shares to be redeemed only if you:

(a)     (i) hold Public Shares or (ii) hold Public Shares through Inflection Point Units and elect to separate your Inflection Point Units into the underlying Public Shares and Inflection Point Warrants prior to exercising your redemption rights with respect to the Public Shares;

(b)    submit a written request to Continental, including the legal name, phone number and address of the beneficial owner of the Public Shares for which redemption is requested, that Inflection Point redeem all or a portion of your Public Shares for cash; and

(c)     deliver your share certificates for Public Shares (if any) along with the redemption forms to Continental, physically or electronically through DTC.

Public Shareholders must complete the procedures for electing to redeem their Public Shares in the manner described above prior to 5:00 p.m., Eastern Time, on [•], 2026 (two business days before the initial scheduled date of the extraordinary general meeting), in order for their Public Shares to be redeemed.

Public Shareholders may elect to redeem all or a portion of the Public Shares held by them regardless of if or how they vote in respect of the Business Combination Proposal. If the Business Combination is abandoned, the Public Shares will be returned to the respective holder, broker or bank. If the Redemption is consummated, and if a Public Shareholder properly exercises its right to redeem all or a portion of the Public Shares that it holds and timely delivers the certificates for its shares (if any) along with the redemption forms to Continental, Inflection Point will redeem such

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Public Shares at the Redemption Price. For illustrative purposes, as of the Record Date, this would have amounted to approximately $[•] per issued and outstanding Public Share. If a Public Shareholder exercises its redemption rights in full, then it will be electing to exchange its Public Shares for cash and will no longer own Public Shares. See the section of the proxy statement/prospectus entitled “Extraordinary General Meeting of Inflection Point — Redemption Rights” for a detailed description of the procedures to be followed if you wish to redeem your Public Shares for cash.

Notwithstanding the foregoing, a Public Shareholder, together with any affiliate of such Public Shareholder or any other Person with whom such Public Shareholder is acting in concert or as a “group” (as defined in Section 13(d)(3) of the Exchange Act), will be restricted from redeeming its Public Shares with respect to more than an aggregate of 15% of the Public Shares. Accordingly, if a Public Shareholder, alone or acting in concert or as a group, seeks to redeem more than 15% of the Public Shares, then any such shares in excess of that 15% limit would not be redeemed for cash.

The Sponsor has agreed to, among other things, vote in favor of all proposals being presented at the extraordinary general meeting, regardless of how the Public Shareholders vote. As of the Record Date, the Sponsor owned approximately 25.0% of the issued and outstanding Inflection Point Ordinary Shares.

Holders of the Inflection Point Warrants will not have redemption rights with respect to the Inflection Point Warrants.

Appraisal Rights

Inflection Point shareholders do not have appraisal or dissenters’ rights under Cayman Islands law in connection with the Domestication or the Business Combination. Section 238 of the Companies Act does not apply because the Merger will be consummated after the Domestication under Delaware law. There are no appraisal rights under Delaware law with respect to any of the securities of Inflection Point.

Proxy Solicitation

Proxies may be solicited by mail, telephone or in person. Inflection Point has engaged Alliance Advisors to assist in the solicitation of proxies.

If a shareholder grants a proxy, it may still vote its shares in person if it revokes its proxy before the extraordinary general meeting. A shareholder also may change its vote by submitting a later-dated proxy as described in the section entitled “Extraordinary General Meeting of Inflection Point — Revoking Your Proxy.”

Certain Interests of Inflection Point’s Directors and Officers and Others in the Business Combination

When you consider the recommendation of the Inflection Point Board in favor of approval of the Business Combination Proposal and the other proposals included herein, you should keep in mind that the Sponsor, Inflection Point Fund, and Inflection Point’s directors and officers have interests in such Transaction Proposals that are different from, or in addition to, those of Inflection Point’s shareholders generally. Further, Inflection Point’s officers and directors have additional fiduciary or contractual obligations to other entities pursuant to which such officer or director is or will be required to present a business combination opportunity to such entity, which are set forth in more detail in the section entitled “Information About Inflection Point — Conflicts of Interest.” We believe there were no such opportunities that were not presented as a result of the existing fiduciary or contractual obligations of our officers and directors to other entities. The Inflection Point Board and the Audit Committee were aware of and considered these interests, among other matters, in evaluating and negotiating the Business Combination and Business Combination Agreement and in recommending to our shareholders that they vote in favor of the proposals to be presented at the extraordinary general meeting, including the Business Combination Proposal. Inflection Point shareholders should take these interests into account in deciding whether to approve the proposals to be presented at the extraordinary general meeting, including the Business Combination Proposal. These interests include, among other things:

•        Our Sponsor purchased 8,433,333 Founder Shares for $25,000, or approximately $0.003 per share, in a private placement prior to the consummation of the IPO. The Sponsor is controlled by Michael Blitzer, Kevin Shannon and Adam Saks, who respectively serve as Chairman, Chief Executive Officer and Chief Financial Officer of Inflection Point. Inflection Point Fund has an economic interest in 4,815,833 Founder Shares, or approximately 57.1% of the Founder Shares held by the Sponsor. Michael Blitzer, our Chairman and director, Kevin Shannon, our Chief Executive Officer, and Adam Saks, our Chief Financial Officer, are affiliates of Inflection Point Fund and have economic interests in Inflection Point Fund, including performance allocations, management fees and as limited partners. Each director and officer of Inflection Point has economic interests in the Founder Shares held by the Sponsor. No other person has a direct or indirect material interest in the Sponsor. Such

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8,433,333 shares of New Quantum Space Common Stock that the Sponsor and its permitted transferees will receive upon conversion of such Founder Shares in the Business Combination, if unrestricted and freely tradable, would have had an aggregate market value of approximately $84.7 million based on the closing price of $10.04 per Inflection Point Class A Share on Nasdaq on October 21, 2026, the most recent practicable date prior to the date of this proxy statement/prospectus. However, given such shares of New Quantum Space Common Stock will be subject to lock-up restrictions, we believe such shares will have less value.

•        Our Sponsor purchased 5,000,000 Private Placement Warrants for $5,000,000, or $1.00 per Private Placement Warrant, in a private placement that closed simultaneously with the IPO. The Sponsor is controlled by Michael Blitzer, Kevin Shannon and Adam Saks, who respectively serve as Chairman, Chief Executive Officer and Chief Financial Officer of Inflection Point. Inflection Point Fund has an economic interest in 4,300,000 warrants, or 86% of the Private Placement Warrants held by the Sponsor. Mr. Blitzer, Mr. Shannon and Mr. Saks are affiliates of Inflection Point Fund and have economic interests in Inflection Point Fund, including performance allocations, management fees and as limited partners. Following the Business Combination, the 5,000,000 New Quantum Space Warrants that the Sponsor will receive upon conversion of such Private Placement Warrants, if unrestricted and freely tradable, would have had an aggregate market value of approximately $3.3 million based on the closing price of $0.65 per Inflection Point Warrant on Nasdaq on October 21, 2026, the most recent practicable date prior to the date of this proxy statement/prospectus. However, given such New Quantum Space Warrants will be subject to lock-up restrictions, we believe such shares will have less value.

•        Given the differential in the purchase price that the Sponsor, its affiliates and the officers and directors paid for the Founder Shares as compared to the price of the Inflection Point Class A Shares included in the Inflection Point Units sold in the IPO, the Sponsor, its affiliates and the officers and directors may earn a positive rate of return on its investment even if the shares of New Quantum Space Common Stock trade below $10.00 per share and the Public Shareholders experience a negative rate of return following the Closing. Accordingly, the economic interests of the Sponsor, its affiliates and the officers and directors diverge from the economic interests of Public Shareholders because the Sponsor will realize a gain on its investment from the completion of almost any business combination while Public Shareholders will realize a gain only if the post-closing trading price exceeds $10.00 per share.

•        Our Sponsor, and therefore Inflection Point Fund, will lose its entire investment in us if we do not complete a business combination by March 30, 2028 (or if such date is extended at a duly called meeting of the Inflection Point shareholders, such later date). If we do not consummate a business combination by such date, as promptly as reasonably possible but not more than ten business days thereafter, we will redeem the Public Shares for a pro rata portion of the funds held in the Trust Account, subject to our obligations under Cayman Islands law to provide for the claims of creditors and the requirements of other applicable law. In such event, the Inflection Point Warrants may be worthless. In such event, the 8,433,333 Inflection Point Ordinary Shares owned by our Sponsor would be worthless because following the redemption of Public Shares, we would likely have few, if any, net assets and because the Sponsor has agreed to waive their rights to liquidating distributions from the Trust Account with respect to such shares if we fail to complete a business combination within the required period. Additionally, in such event, the 5,000,000 Private Placement Warrants that the Sponsor paid $5,000,000 to purchase will expire and become worthless.

•        Inflection Point Fund, an accredited investor that is an affiliate of Inflection Point, has an economic interest in 4,815,833 Founder Shares, or approximately 57.1% of the Founder Shares and 4,300,000 warrants, or 86%, of the Private Placement Warrants held by the Sponsor. In exchange for the Pre-Funded Preferred Units and Pre-Funded Warrants it purchased for $32.5 million, (a) Inflection Point Fund will contribute all of its Pre-Funded Preferred Units to New Quantum Space in exchange for a number of shares of New Quantum Space Series A Preferred Stock equal to the quotient of (i) the aggregate Series B preference amount of such holder’s Pre-Funded Preferred Units, divided by (ii) $12.00 (approximately 3,364,356 shares of New Quantum Space Series A Preferred Stock taking into account accrued payment-in-kind dividends through November 25, 2026; such number of shares of New Quantum Space Series A Preferred Stock may increase prior to Closing due to additional accrued payment-in-kind dividends after such date) and (b) Inflection Point Fund may elect to contribute its Pre-Funded Warrants (initially exercisable for 3,186,274 Quantum Space Common Units at $12.00 per unit) to New Quantum Space in exchange for New Quantum Space Preferred Investor Warrants initially exercisable to purchase up to 3,186,274 shares of New Quantum Space Class A-1 Common Stock at $12.00 per share, each subject to adjustment.

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•        Inflection Point’s Sponsor, officers and directors, and Inflection Point Fund, have agreed not to redeem any of the Founder Shares or Inflection Point Ordinary Shares held by them in connection with a shareholder vote to approve the Business Combination.

•        If the Trust Account is liquidated, the Sponsor has agreed to indemnify us to ensure that the proceeds in the Trust Account are not reduced below $10.00 per Public Share, or such lesser amount per Public Share as is in the Trust Account on the liquidation date, by the claims of prospective target businesses with which we have entered into an acquisition agreement or claims of any third party for services rendered or products sold to us, but only if such a vendor or target business has not executed a waiver of any and all rights to seek access to the Trust Account.

•        Inflection Point’s existing officers and directors will be eligible for continued indemnification and continued coverage under a directors’ and officers’ liability insurance policy for a period of six (6) years after the Business Combination.

•        The Sponsor and its members (present and former), managers and affiliates and their respective present and former officers and directors (each, a “Sponsor Indemnitee”) will be eligible for continued indemnification for any Sponsor Indemnitee’s activities in connection with the affairs of Inflection Point.

•        The continuation of Mr. Blitzer as a director of the New Quantum Space Board following the Closing. As such, in the future he may receive any cash fees, stock options or stock awards that the New Quantum Space Board determines to pay to its directors.

•        In connection with the Closing, our Sponsor, officers and directors would be entitled to the repayment of any outstanding working capital loan and advances that have been made to Inflection Point. In order to finance transaction costs in connection with a business combination, the Sponsor or Inflection Point Fund or certain of Inflection Point’s officers or directors may, but are not obligated to, loan Inflection Point Working Capital Loans. In the event that a business combination does not close, Inflection Point may use a portion of the working capital held outside the Trust Account to repay the Working Capital Loans but no proceeds from the Trust Account would be used to repay the Working Capital Loans. Up to $1,500,000 of such Working Capital Loans may be convertible into private placement warrants at $1.00 per warrant at the option of the lender. The warrants would be identical to the Private Placement Warrants. As of the date of this proxy statement/prospectus, no such Working Capital Loans are outstanding.

•        Upon the Closing, subject to the terms and conditions of the Business Combination Agreement, our Sponsor, our officers and directors and their respective affiliates may be entitled to reimbursement for any reasonable out-of-pocket expenses related to identifying, investigating and consummating an initial business combination, and repayment of any other loans, if any, and on such terms as to be determined by Inflection Point from time to time, made by our Sponsor or certain of our officers and directors to finance transaction costs in connection with an intended initial business combination. As of the date of this proxy statement/prospectus, there are no out-of-pocket expenses to be reimbursed.

•        Pursuant to the A&R Registration Rights Agreement, Inflection Point’s officers and directors, and the Sponsor and its members will have customary registration rights, including demand and piggy-back rights, subject to cooperation and cut-back provisions with respect to the New Quantum Space Common Stock held by such parties following the consummation of the Business Combination.

In addition, as a result of multiple business affiliations, our directors and officers have fiduciary, contractual or similar legal obligations to other entities, which may require our directors and officers to present a business combination opportunity to such other entity and only present it to us if such entity rejects the opportunity, subject to his or her fiduciary duties under Cayman Islands law. We believe, however, that there were no such corporate opportunities presented to our directors and officers which were not presented to Inflection Point, and therefore that our directors’ and officers’ additional fiduciary, contractual, or similar legal obligations to other entities did not impact our search for a business combination target. For more information, see “Information About Inflection Point — Conflicts of Interest.”

The Inflection Point Board engaged Newbridge to provide an opinion to the Inflection Point Board as to the fairness, from a financial point of view, to the Inflection Point Unaffiliated Shareholders of the Aggregate Consideration to be paid by Inflection Point pursuant to the Business Combination Agreement (the “Fairness Opinion”), a copy of which is attached hereto as Annex F.

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For additional information, see the section of this proxy statement/prospectus entitled “The Business Combination Proposal — Interests of Certain Inflection Point Persons in the Business Combination” and “Executive and Director Compensation of Quantum Space — Interests of Quantum Space’s Directors and Executive Officers in the Business Combination.”

Interests of Quantum Space’s Directors and Executive Officers in the Business Combination

Quantum Space’s directors and executive officers have interests in the Business Combination that are different from, or in addition to, and may conflict with, the interests of unaffiliated security holders of Inflection Point. These interests include their ownership of Quantum Space Incentive Units and other Quantum Space equity interests, which will be converted or exchanged into Quantum Space Common Units in the Recapitalization and which will become exchangeable for publicly traded securities following the expiration of applicable lock-up and transfer restrictions; the fact that each of the sole Up-C Seller and the sole Participating TRA Holder is an entity (or entities) affiliated with Dr. Kam Ghaffarian, who will be the controlling stockholder of New Quantum Space following the Closing, and as a result Dr. Ghaffarian will benefit from the Up-C structure, including the ability to exchange retained Quantum Space Common Units for publicly traded shares of New Quantum Space Class A Common Stock and flow-through tax treatment on income allocated in respect of such retained units, and from payments under the Tax Receivable Agreement; the post-Closing founder incentive arrangement that the Business Combination Agreement requires to be established for Dr. Ghaffarian and other members of Quantum Space’s executive management; and the expected continuation of Mr. Bridenstine as Chief Executive Officer and a director, Mr. Parekh as Chief Financial Officer and Treasurer, and Dr. Ghaffarian as Executive Chairman and a director of New Quantum Space, together with the compensation and equity award opportunities associated with those positions. Dr. Ghaffarian, through Quantum Space Holdings, LLC, Quantum Space KG Parent, LLC and IBX Opportunity GP, Inc., is also expected to control approximately 78.3% of New Quantum Space’s total voting power immediately following the Closing in the No Redemption Scenario, 80.8% in the 50% Redemption Scenario and 83.5% in the Maximum Redemption Scenario, and the sole Up-C Seller, which is affiliated with Dr. Ghaffarian, will retain Quantum Space Common Units paired with shares of New Quantum Space Class B-2 Common Stock, which carry ten votes per share. Because these benefits are contingent upon, or would be enhanced by, the completion of the Business Combination, Quantum Space’s officers and directors may have an incentive to support and complete the Business Combination even in circumstances in which unaffiliated security holders of Inflection Point might prefer to redeem their Public Shares, to pursue a different transaction or not to complete a business combination at all. In addition to the interests described above, Quantum Space’s directors and executive officers have other specific interests in the Business Combination that are different from, or in addition to, and may conflict with, the interests of unaffiliated security holders of Inflection Point as described in the section entitled “Executive and Director Compensation of Quantum Space — Interests of Quantum Space’s Directors and Executive Officers in the Business Combination.”

Compensation Received by the Sponsor, its Affiliates and Inflection Point Directors and Executive Officers

Set forth below is a summary of the amount of compensation and securities received, to be received or that may be received by the Sponsor, its affiliates and Inflection Point’s directors, officers and their affiliates in connection with the Business Combination and related transactions. All of Inflection Point’s officers and directors, in addition to certain third-party investors, are members of the Sponsor and therefore have an indirect interest in the amount of compensation received by and securities issued to the Sponsor, and in the consideration paid or to be paid by the Sponsor, in connection with the Business Combination or any related financing transaction.

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Ownership of New Quantum Space

The following summarizes the pro forma shares outstanding of New Quantum Space Common Stock and Series A Preferred Stock (on an as-converted to New Quantum Space Class A-1 Common Stock basis as of the Closing Date) under the three redemption scenarios, on an as-converted basis, excluding the potential dilutive effect of warrants to purchase shares of New Quantum Space Class A-1 Common Stock:

____________

(1)      Assumes that no Public Shareholders exercise redemption rights with respect to their Public Shares for a pro rata share of the funds in the Trust Account.

(2)      Assumes that holders of 50% of the Public Shares, 12,650,000 Public Shares, exercise their redemption rights for an aggregate payment of approximately $127.4 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026.

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(3)      Assumes that holders of 100% of the Public Shares, 25,300,000 Public Shares, exercise their redemption rights for an aggregate payment of approximately $254.8 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026.

(4)     Consists of 8,433,333 shares of New Quantum Space Class A-1 Common Stock issued upon conversion of Founder Shares.

(5)      Consists of shares of New Quantum Space Class A-1 Common Stock issuable upon conversion of 6,211,119 shares of Series A Preferred Stock to be issued upon conversion of Pre-Funded Preferred Units sold in the Pre-Funded Investment (taking into account accrued payment-in-kind dividends through November 25, 2026).

(6)      Consists of 19,999,994 shares of New Quantum Space Class A-1 Common Stock issuable upon conversion of shares of Series A Preferred Stock to be issued pursuant to the Series A SPAs.

(7)      Based on the Aggregate Consideration of $600 million divided by the estimated per-share Redemption Price of approximately $10.07 per share from the Trust Account based on funds in the Trust Account as of June 30, 2026. Consists of (i) 27,942,248 shares of New Quantum Space Class A-1 Common Stock, (ii) 316,393 shares of New Quantum Space Class A-2 Common Stock and (iii) 31,322,858 shares of New Quantum Space Class B-2 Common Stock (non-economic, paired with retained Quantum Space Common Units). The Quantum Space Equity Holders include holders receiving shares through the Up-C structure, whereby Up-C Sellers retain 99% of their Quantum Space Common Units paired with shares of New Quantum Space Class B-2 Common Stock (carrying ten votes per share) and contribute 1% in exchange for shares of New Quantum Space Class A-2 Common Stock (carrying ten votes per share).

The following summarizes the pro forma shares outstanding of New Quantum Space Common Stock on a fully diluted basis, assuming the exercise of all New Quantum Space Warrants and New Quantum Space Series A Warrants to purchase shares of New Quantum Space Class A-1 Common Stock:

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The following summarizes the pro forma shares outstanding of New Quantum Space Common Stock on a fully diluted basis, assuming the exercise of all New Quantum Space Warrants and New Quantum Space Series A Warrants to purchase shares of New Quantum Space Class A-1 Common Stock, and also accounting for the Founder Incentive Arrangement providing for performance-based equity awards based on an intended aggregate value equal to 9,000,000 shares of New Quantum Space Common Stock as of the Closing.

____________

(1)      Assumes that no Public Shareholders exercise redemption rights with respect to their Public Shares for a pro rata share of the funds in the Trust Account.

(2)      Assumes that holders of 50% of the Public Shares, 12,650,000 Public Shares, exercise their redemption rights for an aggregate payment of approximately $127.4 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026.

(3)      Assumes that holders of 100% of the Public Shares, 25,300,000 Public Shares, exercise their redemption rights for an aggregate payment of approximately $254.8 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026.

(7)      Based on the Aggregate Consideration of $600 million divided by the estimated per-share Redemption Price of approximately $10.07 per share from the Trust Account based on funds in the Trust Account as of June 30, 2026. Consists of (i) 27,942,248 shares of New Quantum Space Class A-1 Common Stock, (ii) 316,393 shares of New Quantum Space Class A-2 Common Stock and (iii) 31,322,858 shares of New Quantum Space Class B-2 Common Stock (non-economic, paired with retained Quantum Space Common Units). The Quantum Space Equity Holders include holders receiving shares through the Up-C structure, whereby Up-C Sellers retain 99% of their Quantum Space Common Units paired with shares of New Quantum Space Class B-2 Common Stock (carrying ten votes per share) and contribute 1% in exchange for shares of New Quantum Space Class A-2 Common Stock (carrying ten votes per share).

(8)      Consists of New Quantum Space Warrants held by public warrant holders, each exercisable for one share of New Quantum Space Class A-1 Common Stock.

(9)      Consists of (i) 8,433,333 shares of New Quantum Space Class A-1 Common Stock issued upon conversion of Founder Shares, and (ii) 5,000,000 New Quantum Space Warrants (converted from Private Placement Warrants purchased by the Sponsor at $1.00 per warrant).

(10)    Consists of (i) 6,211,119 shares of New Quantum Space Class A-1 Common Stock issuable upon conversion of Series A Preferred Stock issued in exchange for Pre-Funded Preferred Units, and (ii) New Quantum Space Series A Warrants exercisable for 5,882,352 shares of New Quantum Space Class A-1 Common Stock issued in exchange for Pre-Funded Warrants.

(11)    Consists of (i) 19,999,994 shares of New Quantum Space Class A-1 Common Stock issuable upon conversion of shares of Series A Preferred Stock issued pursuant to the Series A SPAs, and (ii) New Quantum Space Series A Warrants exercisable for 19,999,994 shares of New Quantum Space Class A-1 Common Stock issued pursuant to the Series A SPAs.

(12)    Consists of 4,500,000 Incentive Units to be issued to Dr. Ghaffarian following the Closing pursuant to the Founder Incentive Arrangement, which are intended to constitute “profits interests” for U.S. federal income tax purposes. Upon the earlier of (a) the date that the Incentive Units have fully vested and (b) the Performance Period End Date, each vested Quantum Space Incentive Unit will automatically convert into a fraction (no greater than one) of a Quantum Space Common Unit in accordance with the terms of the A&R Operating Agreement. See “Interests of Quantum Space’s Directors and Executive Officers in the Business Combination — Founder Incentive Arrangement.”

(13)    Consists of 4,500,000 restricted shares of New Quantum Space Class A-1 Common Stock, subject to the same performance-based vesting conditions applicable to the Incentive Units as described under “Interests of Quantum Space’s Directors and Executive Officers in the Business Combination — Founder Incentive Arrangement.”

(14)    Consists of 2,400,000 New Quantum Space Warrants (converted from Private Placement Warrants held by the IPO underwriter).

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For diagrams that illustrate in simplified terms the current structure of Inflection Point and Quantum Space and the expected structure of New Quantum Space immediately following the Closing, see “Summary of the Proxy Statement/Prospectus — The Proposals to be Submitted at the Extraordinary General Meeting — The Business Combination Proposal — Up-C Structure and Tax Receivable Agreement.”

Dilution

The following table presents the net tangible book value per share under each of (i) the No Redemption Scenario, (ii) the 50% Redemption Scenario and (iii) the Maximum Redemption Scenario assuming various sources of material probable dilution (but excluding the effects of the Business Combination transaction itself).

____________

(1)      Assumes that no Public Shareholders exercise redemption rights with respect to their Public Shares for a pro rata share of the funds in the Trust Account, which is a redemption scenario that could occur.

(2)      Assumes that holders of 50% of the Public Shares, 12,650,000 Public Shares, will exercise their redemption rights for an aggregate payment of approximately $127.4 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026, which is a redemption scenario that could occur.

(3)      Assumes that holders of 100% of the Public Shares, 25,300,000 Public Shares, will exercise their redemption rights for an aggregate payment of approximately $254.8 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026, which is a redemption scenario that could occur.

(4)      See table below for reconciliation of net tangible book value, as adjusted.

(5)      See table below for reconciliation of as adjusted shares.

The following table illustrates the as adjusted net tangible book value to the Inflection Point Ordinary Shareholders and net increase or decrease in net tangible book value to the Inflection Point Ordinary Shareholders as a result of transaction costs, funds released from the Trust Account at the Closing and the Closing PIPE Investments.

____________

(1)      Assumes that no Public Shareholders exercise redemption rights with respect to their Public Shares for a pro rata share of the funds in the Trust Account, which is a redemption scenario that could occur.

(2)      Assumes that holders of 50% of the Public Shares, 12,650,000 Public Shares, will exercise their redemption rights for an aggregate payment of approximately $127.4 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026, which is a redemption scenario that could occur.

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(3)      Assumes that holders of 100% of the Public Shares, 25,300,000 Public Shares, will exercise their redemption rights for an aggregate payment of approximately $254.8 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026, which is a redemption scenario that could occur.

(4)      Assumes $17,600,000 of transaction expenses excluding deferred underwriting fees.

(5)      Reflects the reduction of deferred underwriting fees that reduce net tangible book value to $9,095,542 in the 50% Redemption Scenario and to $4,000,000 in the Maximum Redemption Scenario.

(6)      Consists of 19,999,994 shares of Series A Preferred Stock to be issued pursuant to the Series A SPAs.

New Quantum Space is expected to have a maximum of 119,525,945 shares of New Quantum Space Common Stock outstanding or issuable immediately following the Closing (excluding shares of New Quantum Space Common Stock issuable upon exercise of New Quantum Space Series A Warrants, Founder Incentive Shares or IPO Underwriter Warrants) after giving effect to the Business Combination under the No Redemption Scenario. Where there are no redemptions, the valuation of Inflection Point is based on the offering price of each Public Share of $10.00 (for this purpose ascribing no value to the Inflection Point Warrant included in each Inflection Point Unit) and is therefore calculated as: $10.00 (Per share price at IPO) times 119,525,945 shares, or $1,195,259,450. The following table illustrates the valuation based on the offering price of the securities at the IPO price of $10.00 per share under each redemption scenario:

____________

(1)      Assumes that no Public Shareholders exercise redemption rights with respect to their Public Shares for a pro rata share of the funds in the Trust Account, which is a redemption scenario that could occur.

(2)      Assumes that holders of 50% of the Public Shares, 12,650,000 Public Shares, will exercise their redemption rights for an aggregate payment of approximately $127.4 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026, which is a redemption scenario that could occur.

(3)      Assumes that holders of 100% of the Public Shares, 25,300,000 Public Shares, will exercise their redemption rights for an aggregate payment of approximately $254.8 million (based on the estimated per-share redemption price of approximately $10.07 per share) from the Trust Account based on funds in the Trust Account as of June 30, 2026, which is a redemption scenario that could occur.

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(4)      Consists of shares of New Quantum Space Common Stock issuable upon conversion on the assumed Closing Date of November 25, 2026 of (i) 6,211,119 shares of Series A Preferred Stock to be issued upon conversion of Pre-Funded Preferred Units sold in the Pre-Funded Investment, and (ii) 19,999,994 shares of Series A Preferred Stock to be issued pursuant to the Series A SPAs.

Regulatory Matters

Neither Inflection Point nor Quantum Space is aware of any material regulatory approvals or actions that are required for completion of the Business Combination, other than the regulatory notices and approvals discussed in “Proposal No. 1 — The Business Combination Proposal — Business Combination Agreement — Closing Conditions — Conditions to the Obligations of Each Party.” It is presently contemplated that if any such additional regulatory approvals or actions are required, those approvals or actions will be sought. There can be no assurance, however, that any additional approvals or actions will be obtained.

Under the HSR Act and the rules that have been promulgated thereunder, certain transactions may not be consummated unless information has been furnished to the Antitrust Division of the Department of Justice (“Antitrust Division”) and the Federal Trade Commission (“FTC” and, together with the Antitrust Division, the “Antitrust Agencies”) and certain waiting period requirements have been satisfied. The Business Combination may be subject to the HSR Act and, accordingly, Inflection Point and Quantum Space filed Notification and Report Forms with the Antitrust Agencies on July 29, 2026, the waiting period for which expires on August 28, 2026, at 11:59 pm ET.

Recommendation to Shareholders of Inflection Point

The Inflection Point Board believes that the Business Combination Proposal and the other proposals to be presented at the extraordinary general meeting are in the best interest of Inflection Point’s shareholders and unanimously recommends that its shareholders vote “FOR” the approval of the Business Combination Proposal, “FOR” the approval of the Domestication Proposal, “FOR” the approval of the Merger Proposal, “FOR” the approval of the Domesticated Organizational Documents Proposal, “FOR” the approval, on an advisory basis, of each of the separate Advisory Organizational Documents Proposals, “FOR” the approval of the Director Election Proposal, “FOR” the approval of the New Quantum Space Incentive Plan Proposal, “FOR” the approval of the New Quantum Space Employee Stock Purchase Plan Proposal and “FOR” the approval of the Adjournment Proposal, if presented to the extraordinary general meeting.

Background and Material Terms of the Business Combination

Inflection Point is a special purpose acquisition company that was incorporated on September 12, 2025, as a Cayman Islands exempted company formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses or entities. Inflection Point’s management surveyed the landscape of potential acquisition opportunities for acquisition targets. From the time of Inflection Point’s IPO to May 2026 when Inflection Point entered into a letter of intent with Quantum Space, Inflection Point reviewed more than thirteen acquisition opportunities, executed approximately eight non-disclosure agreements and delivered three initial draft letters of intent. Inflection Point management ultimately decided not to pursue such alternate targets and instead focus its efforts on Quantum Space. The terms of the Business Combination Agreement are the result of negotiations between the representatives of Inflection Point and Quantum Space, which occurred between May and June 2026. For more information, see “Proposal No. 1 — The Business Combination Proposal — Background of the Business Combination.”

Inflection Point Board’s Reasons for the Approval of the Business Combination

Before reaching their respective unanimous decisions on June 7, 2026, the Audit Committee and the Inflection Point Board consulted with its management team, legal counsel and other advisors. The Audit Committee and the Inflection Point Board considered a variety of factors in connection with its evaluation of the Business Combination in approving and recommending the transaction to the Inflection Point shareholders. In light of the complexity of those factors, the Audit Committee and the Inflection Point Board, as a whole, did not consider it practicable to, nor did it attempt to, quantify or otherwise assign relative weights to the specific factors it took into account in reaching its decision. Different individual members of the Audit Committee and the Inflection Point Board may have given different weight to different factors in their evaluation of the Business Combination.

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Further, the prospectus for the IPO identified the general criteria and guidelines that Inflection Point believed would be important in evaluating prospective target businesses, although Inflection Point also indicated it may enter into a business combination with a target business that does not meet these criteria or guidelines. The Inflection Point Board considered these criteria in their evaluation of Quantum Space, which include (i) Quantum Space’s management team, (ii) Quantum Space’s business, (iii) Quantum Space’s valuation and projected financial performance, (iv) review of other business combination opportunities reasonably available to Inflection Point, (v) the investment in Quantum Space pursuant to the Pre-Funded SPAs and Series A SPAs, (vi) Quantum Space stockholders’ retained interest, and (vii) review of selected public and private companies. The Inflection Point Board determined that the Business Combination presents an attractive business opportunity in light of a variety of factors, including its strong and experienced management team, defensible market position, unique product offering and valuation. The Inflection Point Board also reviewed the financial analysis and opinion of Newbridge to the effect that, as of June 6, 2026, and subject to the procedures followed, assumptions made, qualifications and limitations on the review undertaken and other matters considered by Newbridge as set forth in its written opinion, (i) the Aggregate Consideration to be paid by Inflection Point in the Business Combination was fair, from a financial point of view, to the Inflection Point Unaffiliated Shareholders and (ii) whether the Business Combination has an aggregate fair market value of at least eighty percent (80.0%) of the value of the assets held in the Trust Account for the benefit of the Public Shareholders (excluding any deferred underwriters fees and taxes payable on the income earned on the Trust Account) at the time of the Business Combination Agreement. The Inflection Point Board also considered the potential detriments of the Business Combination to Quantum Space, including Quantum Space’s limited operating history, regulatory risks, the uncertainty of the potential benefits of the Business Combination being achieved, macroeconomic risks, the absence of possible structural protections for minority shareholders, and the risks and costs to Inflection Point if the Business Combination is not achieved, including the risk that it may result in Inflection Point being unable to complete a business combination and force Inflection Point to liquidate.

For a description of the Inflection Point Board’s reasons for the approval of the Business Combination and the unanimous recommendation of the Inflection Point Board, see the subsection entitled “Proposal No. 1 — The Business Combination Proposal — Inflection Point Board’s Reasons for the Approval of the Business Combination.”

Sources and Uses of Funds for the Business Combination

The following tables summarize the sources and uses for funding the Business Combination.

Estimated Sources and Uses (No Redemptions)

Estimated Sources and Uses (Maximum Redemptions)

____________

(1)      Based on the amount in the Trust Account as of June 30, 2026.

(2)      Assumes $300 million in PIPE Investments from new and existing investors, up to $254.8 million in cash held in the Trust Account and $29.6 million of transaction expenses in the No Redemptions scenario, including deferred underwriting fees of $12.0 million.

(3)      Assumes $300 million in PIPE Investments from new and existing investors and $21.6 million of transaction expenses in the Maximum Redemptions scenario, including deferred underwriting fees of $4.0 million.

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U.S. Federal Income Tax Considerations

For a discussion summarizing material U.S. federal income tax considerations of the Domestication and an exercise of Redemption Rights in connection with the Business Combination, please see “Material U.S. Federal Income Tax Considerations.”

Accounting Considerations

The Business Combination will be accounted for as a reverse recapitalization, with no goodwill or other intangible assets recorded, in accordance with U.S. GAAP, as Inflection Point does not meet the definition of a business under U.S. GAAP. For financial reporting purposes, Quantum Space is identified as the accounting acquirer, and Inflection Point as the accounting acquiree. For accounting purposes, the financial statements of New Quantum Space will represent a continuation of the financial statements of Quantum Space, with the Business Combination being treated as the equivalent of Quantum Space issuing stock for the net assets of Inflection Point, accompanied by recapitalization. For more information, see “Proposal No. 1 — The Business Combination Proposal — Expected Accounting Treatment of the Business Combination.”

Emerging Growth Company

We are an “emerging growth company” as defined in Section 2(a) of the Securities Act, as modified by the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”), and may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies including, but not limited to, not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act, reduced disclosure obligations regarding executive compensation in its periodic reports and proxy statements, and exemptions from the requirements of holding a non-binding advisory vote on executive compensation and shareholder approval of any golden parachute payments not previously approved.

Further, Section 102(b)(1) of the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a registration statement under the Securities Act declared effective or do not have a class of securities registered under the Exchange Act) are required to comply with the new or revised financial accounting standards. The JOBS Act provides that a company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such election to opt out is irrevocable. Inflection Point has not elected, and New Quantum Space is not expected to elect, to opt out of such extended transition period, which means that when a standard is issued or revised and it has different application dates for public or private companies, we, as emerging growth companies, can adopt the new or revised standard at the time private companies adopt the new or revised standard. This may make comparison of our financial statements with another public company which is neither an emerging growth company nor an emerging growth company which has opted out of using the extended transition period difficult or impossible because of the potential differences in accounting standards used.

New Quantum Space will remain an emerging growth company until the earlier of: (1) the last day of the fiscal year (a) following the fifth anniversary of the effectiveness of Inflection Point’s IPO registration statement, (b) in which New Quantum Space has total annual revenue of at least $1.235 billion, or (c) in which New Quantum Space is deemed to be a large accelerated filer, which means the market value of its common equity that is held by non-affiliates exceeds $700 million as of the end of the prior fiscal year’s second fiscal quarter; and (2) the date on which New Quantum Space has issued more than $1.00 billion in non-convertible debt securities during the prior three-year period.

Smaller Reporting Company

Inflection Point is a “smaller reporting company” as defined in Item 10(f)(1) of Regulation S-K. Smaller reporting companies may take advantage of certain reduced disclosure obligations, including, among other things, providing only two years of audited financial statements.

Following the Closing, New Quantum Space will be required to re-determine its status as a smaller reporting company prior to the time it makes its first filing with the SEC (other than the Current Report on Form 8-K filed with Form 10 Information (as defined in Rule 144(i)(3) of the Securities Act)). New Quantum Space will be able to continue to take advantage of the smaller reporting company scaled disclosures if its voting and non-voting common stock held

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by non-affiliates is less than $250.0 million measured as of a date within four business days after the consummation of the Business Combination, or Quantum Space’s annual revenue is less than $100.0 million as of the most recently completed fiscal year reported in the Current Report on Form 8-K filed with Form 10 Information (as defined in Rule 144(i)(3) of the Securities Act). If New Quantum Space is no longer a smaller reporting company after this initial determination, it would need to reflect its re-determined status in any filing that is due after the 45-day period following the Closing. We expect that New Quantum Space will remain a smaller reporting company after the Closing. To the extent that New Quantum Space takes advantage of the reduced disclosure obligations available for smaller reporting companies, it may also make comparison of our financial statements with other public companies difficult or impossible.

Controlled Company

Following the Closing, through his holdings in Quantum Space Holdings, LLC, Quantum Space KG Parent, LLC and IBX Opportunity GP, Inc., Dr. Ghaffarian is expected to beneficially own approximately 26.5%, 29.6% and 33.6% of the outstanding New Quantum Space Common Stock, and to control approximately 78.3%, 80.8% and 83.5% of New Quantum Space’s total voting power for the election of directors, in each case under the No Redemption Scenario, the 50% Redemption Scenario and the Maximum Redemption Scenario, respectively. This concentration of voting power will result principally from Dr. Ghaffarian’s beneficial ownership of shares of New Quantum Space Class A-2 Common Stock and New Quantum Space Class B-2 Common Stock, each of which will be entitled to ten votes per share, compared with one vote per share for each share of New Quantum Space Class A-1 Common Stock and New Quantum Space Class B-1 Common Stock. Accordingly, Dr. Ghaffarian will generally have the ability to control the outcome of matters submitted to New Quantum Space stockholders that require approval by a majority of the voting power, including the election of directors and the approval of certain significant corporate transactions, and to prevent the approval of matters submitted to stockholders by other stockholders.

As a result, New Quantum Space will be a “controlled company” within the meaning of the NYSE Listing Rules. Under the NYSE Listing Rules, a company of which more than 50% of the voting power for the election of directors is held by an individual, a group or another company is a “controlled company” and may elect not to comply with certain corporate governance requirements. For so long as New Quantum Space remains a controlled company, it will be permitted to rely on exemptions from the requirements that: (i) a majority of the New Quantum Space Board consist of “independent directors,” as defined under the NYSE Listing Rules; (ii) the compensation committee be composed entirely of independent directors and have a written charter addressing the committee’s purpose and responsibilities; and (iii) director nominees be selected or recommended by independent directors or by a nominating and corporate governance committee composed entirely of independent directors, with a written charter or board resolution addressing the nominations process.

The controlled-company exemptions do not extend to NYSE’s audit committee requirements or the requirement that independent directors meet in executive sessions. Upon the Closing, New Quantum Space does not intend to rely on any of these exemptions. However, New Quantum Space may elect to rely on one or more of these exemptions in the future for so long as it remains a controlled company. If New Quantum Space elects to do so, its stockholders may not have the same protections afforded to stockholders of companies that are subject to all of NYSE’s corporate governance requirements. New Quantum Space’s status as a controlled company could also make the New Quantum Space Class A-1 Common Stock less attractive to certain investors or otherwise adversely affect its trading price.

If New Quantum Space ceases to qualify as a controlled company, it will be required to comply with the applicable NYSE corporate governance requirements within the permitted phase-in periods. To the extent New Quantum Space is then relying on one or more controlled-company exemptions, compliance with such requirements may require changes to the composition of the New Quantum Space Board or its committees and the development of additional governance-related policies and practices. Such changes may increase New Quantum Space’s legal and administrative costs, make certain activities more difficult, time-consuming and costly and place additional strain on its personnel, systems and resources.

See “Risk Factors — Risks Related to New Quantum Space’s Securities Following the Business Combination — Following the Business Combination, New Quantum Space will be a ‘controlled company’ within the meaning of the NYSE Listing Rules and, as a result, will qualify for, and may rely on, exemptions from certain corporate governance requirements. Stockholders of New Quantum Space may not have the same protections afforded to stockholders of companies that are subject to such governance requirements”

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Risk Factors

In evaluating the proposals to be presented at the extraordinary general meeting, shareholders should carefully read this proxy statement/prospectus and especially consider the factors discussed in the section entitled “Risk Factors” beginning on page 36 of this proxy statement/prospectus. In particular, such risks include, but are not limited to, the following:

•        Quantum Space is an early-stage company with a history of losses. Quantum Space has not been profitable historically and may not achieve or maintain profitability in the future.

•        A limited number of customers account for a substantial portion of Quantum Space’s revenue. If existing customers do not make subsequent purchases from Quantum Space or renew their contracts with Quantum Space, or if Quantum Space’s relationships with Quantum Space’s largest customers are impaired or terminated, Quantum Space’s revenue could decline, and Quantum Space’s results of operations would be adversely impacted.

•        Substantially all of Quantum Space’s business depends on sales to the public sector, and Quantum Space’s failure to receive and maintain government contracts or changes in the government’s contracting or fiscal policies of the public sector could adversely affect Quantum Space’s business, results of operations, financial condition, and growth prospects.

•        A decline in the U.S. and other government budgets, changes in spending or budgetary priorities, or delays in contract awards have affected and may continue to significantly and adversely affect Quantum Space’s future revenue and limit Quantum Space’s growth prospects.

•        The U.S. government may modify, curtail or terminate one or more of Quantum Space’s contracts, and failure to comply with contract terms or applicable laws and regulations in relation to Quantum Space’s U.S. government contracts could expose Quantum Space to penalties or other adverse consequences.

•        Quantum Space is subject to significant government regulation and oversight, including licensing, filing, registration, and related compliance requirements, and any failure or delay in satisfying these requirements could adversely affect Quantum Space’s business.

•        We have identified material weaknesses in our internal control over financial reporting. If we are unable to remediate these material weaknesses, or if we identify additional material weaknesses in the future, we may be unable to accurately or timely report our financial condition or results of operations, which could adversely affect investor confidence in Quantum Space and, as a result, the value of Quantum Space’s common stock.

•        Quantum Space or Quantum Space’s suppliers may not be able to procure or repair critical hardware components that are required in Quantum Space’s operations.

•        Quantum Space depends on third parties to provide services and to perform Quantum Space’s contractual obligations.

•        Quantum Space may experience delayed launches, launch failures, or insufficient launch capacity from third-party launch providers, which could harm Quantum Space’s business, financial condition, and results of operations.

•        U.S. government contracts are subject to a competitive bidding process, are generally not fully funded at inception, and contain certain terms that may be unfavorable to Quantum Space, which could result in contracts and opportunities consuming significant resources without generating revenue or profit.

•        If Quantum Space is unable to maintain, protect or enforce Quantum Space’s intellectual property rights, it may have a material adverse effect on Quantum Space’s business, revenue, financial results and prospects.

•        Adverse economic conditions, including economic slowdowns, may have a material adverse effect on Quantum Space’s business.

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•        Directors and officers of Inflection Point, the Sponsor and their affiliates have interests in the Business Combination and the proposals described in this proxy statement/prospectus that are different from, or in addition to and/or in conflict with, those of the Inflection Point shareholders generally.

•        Inflection Point’s shareholders will experience dilution due to the issuance of shares of New Quantum Space Common Stock and securities convertible into the shares of New Quantum Space Common Stock to the Quantum Space Members as consideration in the Business Combination and the issuance of securities in the Closing PIPE Investment.

•        Inflection Point may be targeted by securities class action and derivative lawsuits that could result in substantial costs and may delay or prevent the Business Combination from being completed.

•        Past performance by Inflection Point’s management team, advisors and their respective affiliates, including investments and transactions in which they have participated and businesses with which they have been associated, may not be indicative of future performance of an investment in New Quantum Space.

•        New Quantum Space’s actual financial position and results of operations may differ materially from the unaudited pro forma financial information included in this proxy statement/prospectus.

•        The completion of the Business Combination is subject to certain closing conditions, including satisfaction of all closing conditions in the Business Combination Agreement, and any such conditions may not be satisfied on a timely basis, if at all.

Market Price, Ticker Symbol and Dividends

Inflection Point

Trading Market of Inflection Point’s Securities

Inflection Point’s Units, Public Shares and Warrants are currently listed on Nasdaq under the symbols “IPFXU,” “IPFX” and “IPFXW” respectively. Inflection Point’s securities commenced trading on Nasdaq on March 27, 2026.

The closing price of the Inflection Point Units, Public Shares and Warrants on June 5, 2026, the last trading day before announcement of the execution of the Business Combination Agreement, was $10.23, $10.00 and $0.78, respectively. As of [•], 2026, the Record Date for the extraordinary general meeting, the closing price of each of the Inflection Point Units, Public Shares and Warrants was $[•], $[•] and $[•], respectively. Inflection Point’s securityholders should obtain current market quotations for the securities. The market price of Inflection Point’s securities could vary at any time prior to the Closing. Market price information regarding the Inflection Point Class B Shares is not provided here because there is no established public trading market for the Inflection Point Class B Shares.

Holders

As of [•], 2026, the Record Date, there was [one] record holder of the Inflection Point Class A Shares and [one] record holder of the Inflection Point Class B Shares. The number of holders of record does not include a substantially greater number of “street name” holders or beneficial holders whose Inflection Point Class A Shares are held of record by banks, brokers and other financial institutions.

Dividends

Inflection Point has not paid any cash dividends to its shareholders to date and does not intend to pay cash dividends prior to the completion of the Business Combination.

Quantum Space

Trading Market of Quantum Space’s Securities

Historical market price information regarding Quantum Space is not provided because there is no public market for its securities.

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SUMMARY HISTORICAL FINANCIAL INFORMATION OF QUANTUM SPACE

The summary historical financial information for Quantum Space presented below for the years ended December 31, 2025 and 2024, and the summary balance sheets as of December 31, 2025 and 2024 have been derived from Quantum Space’s audited financial statements included elsewhere in this proxy statement/prospectus.

The summary historical financial information presented below as of June 30, 2026 and for the six-month periods ended June 30, 2026 and 2025 have been derived from Quantum Space’s unaudited financial statements included elsewhere in this proxy statement/prospectus. The unaudited financial data presented have been prepared on a basis consistent with Quantum Space’s audited financial statements. In the opinion of Quantum Space’s management, such unaudited financial data reflect all adjustments, consisting only of normal and recurring adjustments necessary for a fair presentation of the results for those periods. The results of operations for the interim periods are not necessarily indicative of the results to be expected of the full year or any future period.

The summary information in the following tables should be read in conjunction with the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations of Quantum Space” and Quantum Space’s financial statements and related notes included elsewhere in this proxy statement/prospectus.

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SUMMARY UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

The following summary unaudited pro forma condensed combined financial information (the “summary pro forma information”) gives effect to the transactions described in the section entitled “Unaudited Pro Forma Condensed Combined Financial Information.” The Business Combination will be accounted for as a reverse recapitalization. This determination is based on the fact that Quantum Space will be controlled by the same party before and after the Business Combination as a result of Quantum Space’s relative voting rights and control over board appointments and the dominance of senior management in the post-combination entity. Since Inflection Point lacks substantive inputs, processes, and outputs, the transaction does not qualify as a business combination under “Accounting Standards Codification Topic 805, Business Combinations” (“ASC 805”). For accounting purposes, the financial statements of New Quantum Space will represent a continuation of the financial statements of Quantum Space, with the Business Combination being treated as the equivalent of Quantum Space issuing stock for the net assets of Inflection Point, accompanied by recapitalization.

The summary unaudited pro forma condensed combined balance sheet data as of June 30, 2026 gives pro forma effect to the transactions as if they had occurred on June 30, 2026. The summary unaudited pro forma condensed combined statements of operations data for the six months ended June 30, 2026 and the twelve months ended December 31, 2025 give pro forma effect to the transactions as if they had been consummated on January 1, 2025.

The summary pro forma information has been derived from, and should be read in conjunction with, the unaudited pro forma condensed combined financial information of the combined company appearing elsewhere in this proxy statement/prospectus and the accompanying notes. The unaudited pro forma condensed combined financial information is based upon, and should be read in conjunction with, the historical financial statements of Quantum Space and related notes and the historical financial statements of Inflection Point and related notes included in this proxy statement/prospectus. The summary pro forma information has been presented for informational purposes only and is not necessarily indicative of what the combined company’s financial position or results of operations actually would have been had the transactions been completed as of the dates indicated. In addition, the summary pro forma information does not purport to project the future financial position or operating results of the combined company.

The summary unaudited pro forma condensed combined financial information has been prepared assuming three redemption scenarios after giving effect to the Transactions, as follows:

•        Assuming No Redemption — This scenario assumes that no Public Shareholders exercise their right to have their Public Shares redeemed for their pro rata share of the Trust Account.

•        Assuming 50% Redemption — This scenario assumes that 12,650,000 Public Shares (which represent 50% of the total Public Shares outstanding) are redeemed, resulting in an aggregate cash payment of approximately $127.4 million out of the Trust Account based on an assumed redemption price of $10.07 per share as of June 30, 2026.

•        Assuming Maximum Redemption — This scenario assumes that 25,300,000 Public Shares (which represent the total number of Public Shares outstanding) are redeemed, resulting in an aggregate cash payment of approximately $254.8 million out of the Trust Account based on an assumed redemption price of $10.07 per share as of June 30, 2026.

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If the actual facts are different than these assumptions, including as to the amount of Inflection Point’s cash and net debt, then the maximum number of redemptions and the amounts and shares outstanding in the unaudited pro forma condensed combined financial information will be different.

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COMPARATIVE HISTORICAL AND UNAUDITED PRO FORMA COMBINED PER SHARE INFORMATION OF INFLECTION POINT AND QUANTUM SPACE

The following table sets forth selected historical comparative share information for Quantum Space and Inflection Point, and unaudited pro forma condensed combined per share information of the combined company after giving effect to the Business Combination and related transactions, assuming three redemption scenarios as follows:

•        Assuming No Redemption — This scenario assumes that no Public Shareholders exercise their right to have their Public Shares redeemed for their pro rata share of the Trust Account.

•        Assuming 50% Redemption — This scenario assumes that 12,650,000 Public Shares (which represent 50% of the total Public Shares outstanding) are redeemed, resulting in an aggregate cash payment of approximately $127.4 out of the Trust Account based on an assumed redemption price of $10.07 per share as of June 30, 2026.

•        Assuming Maximum Redemption — This scenario assumes that 25,300,000 Public Shares (which represent the total number of Public Shares outstanding) are redeemed, resulting in an aggregate cash payment of approximately $254.8 million out of the Trust Account based on an assumed redemption price of $10.07 per share as of June 30, 2026.

The pro forma stockholders’ equity information reflects the Business Combination and related transactions as if they had occurred on June 30, 2026. The weighted average shares outstanding and net loss per share information for the six months ended June 30, 2026 and for the year ended December 31, 2025 give pro forma effect to the Business Combination and related transactions as if they had occurred on January 1, 2025, the beginning of the earlier period presented.

If the actual facts are different than these assumptions, including as to the amount of Inflection Point’s cash and net debt, then the maximum number of redemptions and the amounts and shares outstanding in the unaudited pro forma condensed combined financial information will be different.

This information is only a summary and should be read together with the historical financial information included elsewhere in this proxy statement/prospectus, and the historical financial statements of Quantum Space and related notes and historical financial statements of Inflection Point and related notes that are included elsewhere in this proxy statement/prospectus. The unaudited pro forma combined per share information of Quantum Space and Inflection Point is derived from, and should be read in conjunction with, the unaudited pro forma condensed combined financial statements and related notes included elsewhere in this proxy statement/prospectus.

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The unaudited pro forma combined loss per share information below does not purport to represent the loss per share which would have occurred had the companies been combined during the periods presented, nor loss per share for any future date or period. The unaudited pro forma combined book value per share information below does not purport to represent what the value of Quantum Space and Inflection Point would have been had the companies been combined during the periods presented.