Armada Acquisition Corp. II 修订认股权证协议，明确认股权证可行权时间

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 5, 2026

ARMADA ACQUISITION CORP. II

(Exact name of registrant as specified in its charter)

382 NE 191 St, Suite 52895, Miami, FL 33179-3899

(Address of principal executive offices, including zip code)

(786) 548-1886

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

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 13(a) of the Exchange Act. ☐

Item 1.01 Entry into a Material Definitive Agreement.

On October 5, 2026, Armada Acquisition Corp. II, a Cayman Islands exempted company (the “Company”), entered into an amendment (the “Warrant Amendment”) to the Warrant Agreement, dated as of May 20, 2025 (the “Warrant Agreement”), by and between the Company and Continental Stock Transfer & Trust Company, as warrant agent.

The Warrant Amendment was entered into to conform the provisions of the Warrant Agreement to the description thereof contained in the prospectus for the Company’s initial public offering. That prospectus indicated and Section 3.2 of the Warrant Agreement now provides as a result of the Warrant Amendment that the Company’s Warrants (as defined in the Warrant Agreement) will become exercisable on the later of (i) the date that is the first date on which the Company completes a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination involving the Company and one or more businesses or (ii) the date that is twelve months from the date of the closing of the Public Offering (as defined in the Warrant Agreement). The exercise of any Warrant held through The Depository Trust Company remains subject to the requirement that such Warrant be properly delivered in accordance with the procedures of The Depository Trust Company.

The foregoing description of the Warrant Amendment does not purport to be complete and is qualified in its entirety by reference to the full text of the Warrant Amendment, a copy of which is filed as Exhibit 4.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Item 3.03 Material Modification to Rights of Security Holders.

The information set forth in Item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 3.03.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Additional Information and Where to Find It

Pubco filed with the U.S. Securities and Exchange Commission (the “SEC”) a registration statement on Form S-4 (the “Registration Statement”), which has been declared effective, in connection with the Business Combination, the private placements of securities in connection with the Business Combination (the “Private Placement Transactions”) and the other transactions contemplated by the Business Combination Agreement (together with the Business Combination and the Private Placement Transactions, the “Proposed Transactions”). The Registration Statement includes a proxy statement of the Company and a prospectus of Pubco (the “Proxy Statement/Prospectus”). The Registration Statement was declared effective on August 27, 2026, and the definitive Proxy Statement/Prospectus and other relevant documents were mailed to shareholders of the Company as of the close of business on August 20, 2026, the record date established for voting on the Business Combination and other matters as described in the Proxy Statement/Prospectus. The Company and Pubco have also filed other documents regarding the Proposed Transactions with the SEC. Investors and security holders are also able to obtain copies of the Registration Statement and the Proxy Statement/Prospectus and all other documents filed or to be filed with the SEC by the Company and Pubco, without charge, on the SEC’s website at www.sec.gov, or by directing a request to: Armada Acquisition Corp. II, 382 NE 191 St., Suite 52895, Miami, FL 33179-3899; e-mail: [email protected], or to: Evernorth Holdings Inc., 600 Battery St, San Francisco, CA 94111, email: [email protected].

NEITHER THE SEC NOR ANY STATE SECURITIES REGULATORY AGENCY HAS APPROVED OR DISAPPROVED THE PROPOSED TRANSACTIONS DESCRIBED HEREIN, PASSED UPON THE MERITS OR FAIRNESS OF THE BUSINESS COMBINATION, OR ANY RELATED TRANSACTIONS OR PASSED UPON THE ADEQUACY OR ACCURACY OF THE DISCLOSURE IN THIS CURRENT REPORT ON FORM 8-K. ANY REPRESENTATION TO THE CONTRARY CONSTITUTES A CRIMINAL OFFENSE.

Forward-Looking Statements

This Current Report on Form 8-K contains certain forward-looking statements within the meaning of the U.S. federal securities laws. All statements contained in this Current Report on Form 8-K other than statements of historical fact, including, without limitation, statements regarding the Business Combination, the anticipated benefits and timing thereof, the exercisability of the Company’s warrants, and other statements regarding the Company’s or Pubco’s future performance, are forward-looking statements.

Forward-looking statements are often identified by the use of words such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “might,” “plan,” “potential,” “predict,” “project,” “should,” “will,” “would,” and similar expressions, but the absence of these words does not mean that a statement is not forward-looking.

These forward-looking statements are based on the current expectations and assumptions of the Company and, although the Company believes these forward-looking statements are based on reasonable assumptions at the time they are made, you should be aware that such statements are subject to risks and uncertainties, including those described in Pubco’s registration statement on Form S-4 filed with the SEC in connection with the Business Combination, that could cause actual results to differ materially from those expressed or implied by such forward-looking statements. As you read and consider this Current Report on Form 8-K, you should understand that these statements are not guarantees of future performance or results. You should not place undue reliance on these forward-looking statements.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.