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\n	\n
\n PROSPECTUS Dated April 8, 2026 \n	\n Pricing Supplement No. 19,669 to \n
\n PRODUCT SUPPLEMENT Dated April 8, 2026 \n	\n Registration Statement Nos. 333-293641; 333-293641-01 \n
\n INDEX SUPPLEMENT Dated April 8, 2026 \n	\n Dated October 30, 2026 \n
\n TAX SUPPLEMENT Dated April 8, 2026 \n	\n Rule 424(b)(2) \n

\n \n \n \n \n \n \n

Morgan Stanley Finance LLC

STRUCTURED INVESTMENTS

Opportunities in U.S. Equities

$25,915,000

Digital S&P 500® Equal Weight Index-Linked Notes due January 31, 2028

Fully and Unconditionally Guaranteed by Morgan Stanley

The notes are unsecured obligations of Morgan Stanley Finance LLC (“MSFL”) and are fully and unconditionally guaranteed by Morgan Stanley. The notes will not bear interest. The amount that you will be paid on your notes on the stated maturity date (January 31, 2028, subject to postponement) is based on the performance of the S&P 500® Equal Weight Index as measured from the trade date (October 30, 2026) to and including the determination date (January 27, 2028, subject to postponement). If the final underlier level on the determination date is greater than or equal to the initial underlier level, you will receive an amount equal to the maximum settlement amount ($1,073.50 for each $1,000 face amount of your notes). If the final underlier level on the determination date is less than the initial underlier level, you will receive the face amount of your notes. The notes are notes issued as part of MSFL’s Series A Global Medium-Term Notes program.

All payments are subject to our credit risk. If we default on our obligations, you could lose some or all of your investment. These notes are not secured obligations and you will not have any security interest in, or otherwise have any access to, any underlying reference asset or assets.

To determine your payment at maturity, we will calculate the underlier return, which is the percentage increase or decrease in the final underlier level from the initial underlier level. On the stated maturity date, for each $1,000 face amount of your notes, you will receive an amount in cash equal to:

●if the underlier return is positive or zero (the final underlier level is greater than or equal to the initial underlier level), the maximum settlement amount of $1,073.50 per note, or 107.35% of the face amount; or

●if the underlier return is negative (the final underlier level is less than the initial underlier level), $1,000.

You should read the additional disclosure herein so that you may better understand the terms and risks of your investment.

The estimated value on the trade date is $987.90 per note. See “Estimated Value” on page 2.

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\n	\n	\n	\n
\n \n	\n Price to public \n	\n Agent’s commissions(1) \n	\n Proceeds to us(2) \n
\n Per note \n	\n $1,000 \n	\n $8.40 \n	\n $991.60 \n
\n Total \n	\n $25,915,000 \n	\n $217,686 \n	\n $25,697,314 \n

(1)Morgan Stanley & Co. LLC (“MS & Co.”) will sell all of the notes that it purchases from us to an unaffiliated dealer, which will receive a fixed sales commission of 0.84% for each note they sell. For more information, see “Additional Information About the Notes—Supplemental information regarding plan of distribution; conflicts of interest.”

(2)See “Additional Information About the Notes—Use of proceeds and hedging” beginning on page 19.

The notes involve risks not associated with an investment in ordinary debt securities. See “Risk Factors” beginning on page 10.

The Securities and Exchange Commission and state securities regulators have not approved or disapproved these notes, or determined if this document or the accompanying product supplement, index supplement, tax supplement and prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The notes are not deposits or savings accounts and are not insured by the Federal Deposit Insurance Corporation or any other governmental agency or instrumentality, nor are they obligations of, or guaranteed by, a bank.

You should read this document together with the related product supplement, index supplement, tax supplement and prospectus, each of which can be accessed via the hyperlinks below. Please also see “Final Terms” on page 3 and “Additional Information About the Notes” on page 19.

MORGAN STANLEY

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About Your Prospectus

The notes are notes issued as part of MSFL’s Series A Global Medium-Term Notes program. This prospectus includes this pricing supplement and the accompanying documents listed below. This pricing supplement constitutes a supplement to the documents listed below and should be read in conjunction with such documents:

●Prospectus dated April 8, 2026

●Product Supplement dated April 8, 2026

●Index Supplement dated April 8, 2026

●Tax Supplement dated April 8, 2026

The information in this pricing supplement supersedes any conflicting information in the documents listed above. In addition, some of the terms or features described in the listed documents may not apply to your notes.

ESTIMATED VALUE

The Original Issue Price of each note is $1,000. This price includes costs associated with issuing, selling, structuring and hedging the notes, which are borne by you, and, consequently, the estimated value of the notes on the Trade Date is less than $1,000. We estimate that the value of each note on the Trade Date is $987.90.

What goes into the estimated value on the Trade Date?

In valuing the notes on the Trade Date, we take into account that the notes comprise both a debt component and a performance-based component linked to the Underlier. The estimated value of the notes is determined using our own pricing and valuation models, market inputs and assumptions relating to the Underlier, instruments based on the Underlier, volatility and other factors including current and expected interest rates, as well as an interest rate related to our secondary market credit spread, which is the implied interest rate at which our conventional fixed rate debt trades in the secondary market.

What determines the economic terms of the notes?

In determining the economic terms of the notes, including the Maximum Settlement Amount, we use an internal funding rate, which is likely to be lower than our secondary market credit spreads and therefore advantageous to us. If the issuing, selling, structuring and hedging costs borne by you were lower or if the internal funding rate were higher, one or more of the economic terms of the notes would be more favorable to you.

What is the relationship between the estimated value on the Trade Date and the secondary market price of the notes?

The price at which MS & Co. purchases the notes in the secondary market, absent changes in market conditions, including those related to the Underlier, may vary from, and be lower than, the estimated value on the Trade Date, because the secondary market price takes into account our secondary market credit spread as well as the bid-offer spread that MS & Co. would charge in a secondary market transaction of this type and other factors. However, because the costs associated with issuing, selling, structuring and hedging the notes are not fully deducted upon issuance, for a period of up to 3 months following the issue date, to the extent that MS & Co. may buy or sell the notes in the secondary market, absent changes in market conditions, including those related to the Underlier, and to our secondary market credit spreads, it would do so based on values higher than the estimated value. We expect that those higher values will also be reflected in your brokerage account statements.

MS & Co. may, but is not obligated to, make a market in the notes, and, if it once chooses to make a market, may cease doing so at any time.

SUMMARY INFORMATION

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The Digital S&P 500® Equal Weight Index-Linked Notes, which we refer to as the notes, are unsecured obligations of MSFL and are fully and unconditionally guaranteed by Morgan Stanley. The notes will pay no interest and have the terms described in the accompanying product supplement, index supplement, tax supplement and prospectus, as supplemented or modified by this document. The notes are notes issued as part of MSFL’s Series A Global Medium-Term Notes program.

References to “we,” “us” and “our” refer to Morgan Stanley or MSFL, or Morgan Stanley and MSFL collectively, as the context requires.

Final Terms

Capitalized terms used but not defined herein have the meanings assigned to them in the accompanying product supplement, tax supplement and prospectus. All references to “Cash Settlement Amount,” “Closing Level,” “Determination Date,” “Face Amount,” “Final Underlier Level,” “Initial Underlier Level,” “Original Issue Price,” “Stated Maturity Date,” “Trade Date,” “Underlier” and “Underlier Return” herein shall be deemed to refer to “payment at maturity,” “index closing value,” “determination date,” “stated principal amount,” “final index value,” “initial index value,” “issue price,” “maturity date,” “pricing date,” “underlying index” and “index percent change” respectively, as used in the accompanying product supplement.

If the terms described herein are inconsistent with those described in the accompanying product supplement, tax supplement or prospectus, the terms described herein shall control.

Issuer: Morgan Stanley Finance LLC

Guarantor: Morgan Stanley

Underlier: S&P 500® Equal Weight Index

Underlier Publisher: S&P® Dow Jones Indices LLC

Notes: The accompanying product supplement refers to the notes as the “equity-linked notes.”

Specified currency: U.S. dollars (“$”)

Face Amount: Each note will have a Face Amount of $1,000; $25,915,000 in the aggregate for all the notes; the aggregate Face Amount of notes may be increased if the Issuer, at its sole option, decides to sell an additional amount of the notes on a date subsequent to the date hereof.

Denominations: $1,000 and integral multiples thereof

Cash Settlement Amount (on the Stated Maturity Date): For each $1,000 Face Amount of notes, we will pay you on the Stated Maturity Date an amount in cash equal to:

●if the Final Underlier Level is greater than or equal to the Initial Underlier Level, the Maximum Settlement Amount; or

●if the Final Underlier Level is less than the Initial Underlier Level, $1,000.

You will receive the Face Amount of your notes and you will not receive a positive return on your investment at maturity if the Final Underlier Level is less than the Initial Underlier Level. Notwithstanding anything to the contrary in the accompanying product supplement, you will receive the Maximum Settlement Amount if the Final Underlier Level is greater than or equal to the Initial Underlier Level. Any payment of the Cash Settlement Amount is subject to our credit risk.

Initial Underlier Level: 8,842.30

Final Underlier Level: The Closing Level of the Underlier on the Determination Date, except in the limited circumstances described under “Description of Equity-Linked Notes—Postponement of Determination Date(s)” on page S-33 of the accompanying product supplement, and subject to adjustment as provided under “Description of Equity-Linked Notes—Discontinuance of Any Underlying Index or Basket Index; Alteration of Method of Calculation” on page S-38 of the accompanying product supplement.

Underlier Return: The quotient of (i) the Final Underlier Level minus the Initial Underlier Level divided by (ii) the Initial Underlier Level, expressed as a percentage

Maximum Settlement Amount: $1,073.50 for each $1,000 Face Amount of notes (which is comprised of the $1,000 Face Amount plus an upside payment of $73.50)

Trade Date: October 30, 2026

Original Issue Date (Settlement Date): November 4, 2026 (3 Business Days after the Trade Date)

Determination Date: January 27, 2028, subject to postponement as described in the accompanying product supplement on page S-33 under “Description of Equity-Linked Notes—Postponement of Determination Date(s).”

Stated Maturity Date: January 31, 2028 (2 Business Days after the Determination Date), subject to postponement as described below.

Postponement of Stated Maturity Date: If the scheduled Determination Date is not a Trading Day or if a market disruption event occurs on that day so that the Determination Date as postponed falls less than two Business Days prior to the scheduled Stated Maturity Date, the Stated Maturity Date of the notes will be postponed to the second Business Day following that Determination Date as postponed.

Closing Level: As described under “Description of Equity-Linked Notes—Some Definitions—index closing value” on page S-30 of the accompanying product supplement.

Business Day: As described under “Description of Equity-Linked Notes—Some Definitions—business day” on page S-29 of the accompanying product supplement.

Trading Day: As described under “Description of Equity-Linked Notes—Some Definitions—index business day” on page S-30 of the accompanying product supplement. The accompanying product supplement refers to a Trading Day as an “index business day.”

Market disruption event: The following replaces in its entirety the section entitled “Description of Equity-Linked Notes—Some Definitions—market disruption event” on page S-30 of the accompanying product supplement:

“Market disruption event” means, with respect to the Underlier:

(i) the occurrence or existence of:

(a)a suspension, absence or material limitation of trading of securities then constituting 20 percent or more, by weight, of the Underlier (or the successor index) on the relevant exchanges for such securities for more than two hours of trading or during the one-half hour period preceding the close of the principal trading session on such relevant exchange, or

(b)a breakdown or failure in the price and trade reporting systems of any relevant exchange as a result of which the reported trading prices for securities then constituting 20 percent or more, by weight, of the Underlier (or the successor index), or futures or options contracts, if available, relating to the Underlier (or the successor index) or the securities then constituting 20 percent or more, by weight, of the Underlier during the last one-half hour preceding the close of the principal trading session on such relevant exchange are materially inaccurate, or

(c)the suspension, material limitation or absence of trading on any major U.S. securities market for trading in futures or options contracts or exchange-traded funds related to the Underlier (or the successor index), or in futures or options contracts, if available, relating to securities then constituting 20 percent or more, by weight, of the Underlier (or the successor index) for more than two hours of trading or during the one-half hour period preceding the close of the principal trading session on such market,

in each case as determined by the calculation agent in its sole discretion; and

(ii) a determination by the calculation agent in its sole discretion that any event described in clause (i) above materially interfered with our ability or the ability of any of our affiliates to unwind or adjust all or a material portion of the hedge position with respect to the notes.

For the purpose of determining whether a market disruption event exists at any time, if trading in a security included in the Underlier is suspended, absent or materially limited at that time, then the relevant percentage contribution of that security to the value of the Underlier shall be based on a comparison of (x) the portion of the value of the Underlier attributable to that security relative to (y) the overall value of the Underlier, in each case immediately before that suspension or limitation.

For the purpose of determining whether a market disruption event has occurred: (1) a limitation on the hours or number of days of trading will not constitute a market disruption event if it results from an announced change in the regular business hours of the relevant exchange or market, (2) a decision to permanently discontinue trading in the relevant futures or options contract or exchange-traded fund will not constitute a market disruption event, (3) a suspension of trading in futures or options contracts or exchange-traded funds on the Underlier, or futures or options contracts, if available, relating to securities then constituting 20 percent or more, by weight, of the Underlier, by the primary securities market trading in such contracts or funds by reason of (a) a price change exceeding limits set by such securities exchange or market, (b) an imbalance of orders relating to such contracts or funds, or (c) a disparity in bid and ask quotes relating to such contracts or funds will constitute a suspension, absence or material limitation of trading in futures or options contracts or exchange-traded funds related to the Underlier and (4) a “suspension, absence or material limitation of trading” on any relevant exchange or on the primary market on which futures or options contracts or exchange-traded funds related to the Underlier are traded will not include any time when such securities market is itself closed for trading under ordinary circumstances.

Trustee: The Bank of New York Mellon

Calculation Agent: MS & Co.

Issuer Notice To Registered Security Holders, the Trustee and the Depositary: In the event that the Stated Maturity Date is postponed due to postponement of the Determination Date, the Issuer shall give notice of such postponement and, once it has been determined, of the date to which the Stated Maturity Date has been rescheduled (i) to each registered holder of the notes by mailing notice of such postponement by first class mail, postage prepaid, to such registered holder’s last address as it shall appear upon the registry books, (ii) to the Trustee by facsimile confirmed by mailing such notice to the Trustee by first class mail, postage prepaid, at its New York office and (iii) to The Depository Trust Company (the “depositary”) by telephone or facsimile, confirmed by mailing such notice to the depositary

by first class mail, postage prepaid. Any notice that is mailed to a registered holder of the notes in the manner herein provided shall be conclusively presumed to have been duly given to such registered holder, whether or not such registered holder receives the notice. The Issuer shall give such notice as promptly as possible, and in no case later than (i) with respect to notice of postponement of the Stated Maturity Date, the Business Day immediately preceding the scheduled Stated Maturity Date, and (ii) with respect to notice of the date to which the Stated Maturity Date has been rescheduled, the Business Day immediately following the actual Determination Date for determining the Final Underlier Level.

The Issuer shall, or shall cause the Calculation Agent to, (i) provide written notice to the Trustee and to the depositary of the amount of cash to be delivered with respect to each Face Amount of notes, on or prior to 10:30 a.m. (New York City time) on the Business Day preceding the Stated Maturity Date, and (ii) deliver the aggregate cash amount due with respect to the notes to the Trustee for delivery to the depositary, as holder of the notes, on the Stated Maturity Date.

CUSIP no.: 61781TLR2

ISIN: US61781TLR22

HYPOTHETICAL EXAMPLES

The following table and chart are provided for purposes of illustration only. They should not be taken as an indication or prediction of future investment results and are intended merely to illustrate the impact that the various hypothetical Closing Levels of the Underlier on the Determination Date could have on the Cash Settlement Amount.

The examples below are based on a range of Final Underlier Levels that are entirely hypothetical; no one can predict what the level of the Underlier will be on any day during the term of the notes, and no one can predict what the Final Underlier Level will be on the Determination Date. The Underlier has at times experienced periods of high volatility — meaning that the level of the Underlier has changed considerably in relatively short periods — and its performance cannot be predicted for any future period.

The information in the following examples reflects hypothetical rates of return on the notes assuming that they are purchased on the Original Issue Date at the Face Amount and held to the Stated Maturity Date. The value of the notes at any time after the Trade Date will vary based on many economic and market factors, including interest rates, the volatility of the Underlier, our creditworthiness and changes in market conditions, and cannot be predicted with accuracy. Any sale prior to the Stated Maturity Date could result in a substantial loss to you.

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\n	\n
\n Key Terms and Assumptions \n
\n Face Amount: \n	\n $1,000 \n
\n Maximum Settlement Amount: \n	\n $1,073.50 per $1,000 Face Amount of notes (107.350% of the Face Amount) \n
\n Minimum Cash Settlement Amount: \n	\n $1,000 per $1,000 Face Amount of notes \n
\n ●Neither a market disruption event nor a non-Trading Day occurs on the Determination Date. \n ●No discontinuation of the Underlier or alteration of the method by which the Underlier is calculated. \n ●Notes purchased on the Original Issue Date at the Face Amount and held to the Stated Maturity Date. \n

The actual performance of the Underlier over the term of the notes, as well as the Cash Settlement Amount may bear little relation to the hypothetical examples shown below or to the historical levels of the Underlier shown elsewhere in this document. For information about the historical levels of the Underlier during recent periods, see “The Underlier” below.

The levels in the left column of the table below represent hypothetical Final Underlier Levels and are expressed as percentages of the Initial Underlier Level. The amounts in the right column represent the hypothetical Cash Settlement Amount, based on the corresponding hypothetical Final Underlier Level (expressed as a percentage of the Initial Underlier Level), and are expressed as percentages of the Face Amount of notes (rounded to the nearest one-thousandth of a percent). Thus, a hypothetical Cash Settlement Amount of 100% means that the value of the cash payment that we would deliver for each $1,000 Face Amount of notes on the Stated Maturity Date would equal 100% of the Face Amount of notes, based on the corresponding hypothetical Final Underlier Level (expressed as a percentage of the Initial Underlier Level) and the assumptions noted above. The numbers appearing in the table and chart below may have been rounded for ease of analysis.

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\n	\n
\n Hypothetical Final Underlier Level \n (as Percentage of Initial Underlier Level) \n	\n Hypothetical Cash Settlement Amount \n (as Percentage of Face Amount) \n
\n 200.000% \n	\n 107.350% \n
\n 175.000% \n	\n 107.350% \n
\n 150.000% \n	\n 107.350% \n

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\n	\n
\n 125.000% \n	\n 107.350% \n
\n 107.350% \n	\n 107.350% \n
\n 105.000% \n	\n 107.350% \n
\n 100.000% \n	\n 107.350% \n
\n 75.000% \n	\n 100.000% \n
\n 50.000% \n	\n 100.000% \n
\n 25.000% \n	\n 100.000% \n
\n 0.000% \n	\n 100.000% \n

If, for example, the Final Underlier Level were determined to be 25.000% of the Initial Underlier Level, the Cash Settlement Amount would be the Minimum Cash Settlement Amount (100.000% of the Face Amount of notes), as shown in the table above. If you purchased your notes at a premium to the Face Amount, you would lose a percentage of your investment corresponding to the size of the premium.

If the Final Underlier Level were determined to be 150.000% of the Initial Underlier Level, the Cash Settlement Amount would be capped at the Maximum Settlement Amount (expressed as a percentage of the Face Amount), or 107.350% of each $1,000 Face Amount of notes, as shown in the table above. As a result, if you purchased the notes on the Original Issue Date at the Face Amount and held them to the Stated Maturity Date, you would not benefit from any increase in the Final Underlier Level above the Initial Underlier Level.

Payoff Diagram

The following chart shows a graphical illustration of the hypothetical Cash Settlement Amount (expressed as a percentage of the Face Amount of notes), if the Final Underlier Level (expressed as a percentage of the Initial Underlier Level) were any of the hypothetical levels shown on the horizontal axis. The chart shows that any hypothetical Final Underlier Level (expressed as a percentage of the Initial Underlier Level) of less than the Initial Underlier Level (the section left of the 100% marker on the horizontal axis) would result in a hypothetical Cash Settlement Amount equal to the Minimum Cash Settlement Amount. The chart also shows that any hypothetical Final Underlier Level (expressed as a percentage of the Initial Underlier Level) of greater than or equal to 100% (the section right of the 100% marker on the horizontal axis) would result in a capped return on your investment and a hypothetical Cash Settlement Amount equal to the Maximum Settlement Amount.

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Hypothetical Payoff Diagram

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RISK FACTORS

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This section describes the material risks relating to the notes. For further discussion of these and other risks, you should read the section entitled “Risk Factors” in the accompanying product supplement, tax supplement and prospectus. We also urge you to consult your investment, legal, tax, accounting and other advisers in connection with your investment in the notes.

RISKS RELATING TO AN INVESTMENT IN THE NOTES

You May Receive Only the Face Amount of Your Notes at Maturity

If the Underlier Return is negative, the return on your notes will be limited to the Face Amount. Even if the Cash Settlement Amount exceeds the Face Amount of your notes, the overall return you earn on your notes may be less than you would have earned by investing in a note with the same stated maturity that bears interest at the prevailing market rate.

The Notes Do Not Pay Interest

The terms of the notes differ from those of ordinary debt securities in that the notes do not pay interest. The overall return you earn on your notes may be less than you would have earned by investing in a note with the same stated maturity that bears interest at the prevailing market rate.

Also, the market price of your notes prior to the Stated Maturity Date may be significantly lower than the purchase price you pay for your notes. Consequently, if you sell your notes before the Stated Maturity Date, you may receive significantly less than the amount of your investment in the notes.

The Appreciation Potential Of The Notes Is Limited By The Maximum Settlement Amount

The appreciation potential of the notes is limited by the Maximum Settlement Amount of $1,073.50 per note, or 107.350% of the Face Amount. Because the Cash Settlement Amount will be limited to 107.350% of the Face Amount for the notes, any increase in the Final Underlier Level over the Initial Underlier Level will not increase the return on the notes, even if the Final Underlier Level is significantly greater than the Initial Underlier Level.

If You Purchase Your Notes At A Premium To The Face Amount, The Return On Your Investment Will Be Lower Than The Return On Notes Purchased At The Face Amount, And The Impact Of Certain Key Terms Of The Notes Will Be Negatively Affected

The Cash Settlement Amount will not be adjusted based on the issue price you pay for the notes. If you purchase notes at a price that differs from the Face Amount of notes, then the return on your investment in such notes held to the Stated Maturity Date will differ from, and may be substantially less than, the return on notes purchased at the Face Amount. If you purchase your notes at a premium to the Face Amount and hold them to the Stated Maturity Date, the return on your investment in the notes will be lower than it would have been had you purchased the notes at the Face Amount or at a discount to the Face Amount. In addition, the impact of the Minimum Cash Settlement Amount and the Maximum Settlement Amount on the return on your investment will depend upon the price you pay for your notes relative to the Face Amount. For example, if you purchase your notes at a premium to the Face Amount, the Maximum Settlement Amount would represent a lower percentage return relative to your initial investment than it would have been had you purchased the notes at the Face Amount and the Minimum Cash Settlement Amount would represent a percentage loss relative to your initial investment that is greater than it would have been had you purchased the notes at the Face Amount.

The Market Price Will Be Influenced By Many Unpredictable Factors

Several factors, many of which are beyond our control, will influence the value of the notes in the secondary market and the price at which MS & Co. may be willing to purchase or sell the notes in the secondary market, including: the level of the Underlier, volatility (frequency and magnitude of changes in value) of the Underlier and dividend yield of the Underlier, interest and yield rates, time remaining to maturity, geopolitical conditions and economic, financial, political and regulatory or judicial events that affect the Underlier or equities markets generally and which may affect the Final Underlier Level of the Underlier and any actual or anticipated changes in our credit ratings or credit spreads. The level of the Underlier may be, and has been, volatile, and we can give you no assurance that the volatility will lessen. See “The Underlier” below. You may receive less, and possibly significantly less, than the Face Amount per note if you try to sell your notes prior to maturity.

The Notes Are Subject To Our Credit Risk, And Any Actual Or Anticipated Changes To Our Credit Ratings Or Credit Spreads May Adversely Affect The Market Value Of The Notes

You are dependent on our ability to pay all amounts due on the notes at maturity, and therefore you are subject to our credit risk. If we default on our obligations under the notes, your investment would be at risk and you could lose some or all of your investment. As a result, the market value of the notes prior to maturity will be affected by changes in the market’s view of our creditworthiness. Any actual or anticipated decline in our credit ratings or increase in the credit spreads charged by the market for taking our credit risk is likely to adversely affect the market value of the notes.

As A Finance Subsidiary, MSFL Has No Independent Operations And Will Have No Independent Assets

As a finance subsidiary, MSFL has no independent operations beyond the issuance and administration of its securities and will have no independent assets available for distributions to holders of the notes if they make claims in respect of such notes in a bankruptcy, resolution or similar proceeding. Accordingly, any recoveries by such holders will be limited to those available under the related guarantee by Morgan Stanley and that guarantee will rank pari passu with all other unsecured, unsubordinated obligations of Morgan Stanley. Holders will have recourse only to a single claim against Morgan Stanley and its assets under the guarantee. Holders of the notes should accordingly assume that in any such proceedings they could not have any priority over and should be treated pari passu with the claims of other unsecured, unsubordinated creditors of Morgan Stanley, including holders of Morgan Stanley-issued securities.

The Amount Payable On The Notes Is Not Linked To The Level Of The Underlier At Any Time Other Than The Determination Date

The Final Underlier Level will be based on the Closing Level on the Determination Date, subject to adjustment for non-Trading Days and certain market disruption events. Even if the level of the Underlier appreciates prior to the Determination Date but then drops by the Determination Date, the Cash Settlement Amount may be less, and may be significantly less, than it would have been had the Cash Settlement Amount been linked to the level of the Underlier prior to such drop. Although the actual level of the Underlier on the Stated Maturity Date or at other times during the term of the notes may be higher than the Final Underlier Level, the Cash Settlement Amount will be based solely on the Closing Level on the Determination Date.

Investing In The Notes Is Not Equivalent To Investing In The Underlier

Investing in the notes is not equivalent to investing in the Underlier or its component stocks. Investors in the notes will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to stocks that constitute the Underlier.

The Rate We Are Willing To Pay For Securities Of This Type, Maturity And Issuance Size Is Likely To Be Lower Than The Rate Implied By Our Secondary Market Credit Spreads And Advantageous To Us. Both The Lower Rate And The Inclusion Of Costs Associated With Issuing, Selling,

Structuring And Hedging The Notes In The Original Issue Price Reduce The Economic Terms Of The Notes, Cause The Estimated Value Of The Notes To Be Less Than The Original Issue Price And Will Adversely Affect Secondary Market Prices

Assuming no change in market conditions or any other relevant factors, the prices, if any, at which dealers, including MS & Co., may be willing to purchase the notes in secondary market transactions will likely be significantly lower than the Original Issue Price, because secondary market prices will exclude the issuing, selling, structuring and hedging-related costs that are included in the Original Issue Price and borne by you and because the secondary market prices will reflect our secondary market credit spreads and the bid-offer spread that any dealer would charge in a secondary market transaction of this type as well as other factors.

The inclusion of the costs of issuing, selling, structuring and hedging the notes, including a fee payable by our affiliate MS & Co. to iCapital Markets LLC, which is a broker-dealer in which an affiliate of Goldman Sachs & Co. LLC, a dealer participating in the distribution of the notes, holds an indirect minority equity interest, for services it is providing in connection with this offering in the Original Issue Price and the lower rate we are willing to pay as issuer make the economic terms of the notes less favorable to you than they otherwise would be.

However, because the costs associated with issuing, selling, structuring and hedging the notes are not fully deducted upon issuance, for a period of up to 3 months following the issue date, to the extent that MS & Co. may buy or sell the notes in the secondary market, absent changes in market conditions, including those related to the Underlier, and to our secondary market credit spreads, it would do so based on values higher than the estimated value, and we expect that those higher values will also be reflected in your brokerage account statements.

The Estimated Value Of The Notes Is Determined By Reference To Our Pricing And Valuation Models, Which May Differ From Those Of Other Dealers And Is Not A Maximum Or Minimum Secondary Market Price

These pricing and valuation models are proprietary and rely in part on subjective views of certain market inputs and certain assumptions about future events, which may prove to be incorrect. As a result, because there is no market-standard way to value these types of securities, our models may yield a higher estimated value of the notes than those generated by others, including other dealers in the market, if they attempted to value the notes. In addition, the estimated value on the Trade Date does not represent a minimum or maximum price at which dealers, including MS & Co., would be willing to purchase your notes in the secondary market (if any exists) at any time. The value of your notes at any time after the date hereof will vary based on many factors that cannot be predicted with accuracy, including our creditworthiness and changes in market conditions. See also “The Market Price Will Be Influenced By Many Unpredictable Factors” above.

The Notes Will Not Be Listed On Any Securities Exchange And Secondary Trading May Be Limited

The notes will not be listed on any securities exchange. Therefore, there may be little or no secondary market for the notes. MS & Co. may, but is not obligated to, make a market in the notes and, if it once chooses to make a market, may cease doing so at any time. When it does make a market, it will generally do so for transactions of routine secondary market size at prices based on its estimate of the current value of the notes, taking into account its bid/offer spread, our credit spreads, market volatility, the notional size of the proposed sale, the cost of unwinding any related hedging positions, the time remaining to maturity and the likelihood that it will be able to resell the notes. Even if there is a secondary market, it may not provide enough liquidity to allow you to trade or sell the notes easily. Since other broker-dealers may not participate significantly in the secondary market for the notes, the price at which you may be able to trade your notes is likely to depend on the price, if any, at which MS & Co. is willing to

transact. If, at any time, MS & Co. were to cease making a market in the notes, it is likely that there would be no secondary market for the notes. Accordingly, you should be willing to hold your notes to maturity.

The Calculation Agent, Which Is A Subsidiary Of Morgan Stanley And An Affiliate Of MSFL, Will Make Determinations With Respect To The Notes

As calculation agent, MS & Co. will determine the Initial Underlier Level and the Final Underlier Level and will calculate the Cash Settlement Amount you receive at maturity. Moreover, certain determinations made by MS & Co. in its capacity as calculation agent, may require it to exercise discretion and make subjective judgments, such as with respect to the occurrence or non-occurrence of market disruption events and the selection of a successor index or calculation of the Final Underlier Level in the event of a market disruption event or discontinuance of the Underlier. These potentially subjective determinations may adversely affect the Cash Settlement Amount at maturity. For further information regarding these types of determinations, see “Description of Equity-Linked Notes—Postponement of Determination Date(s)” and “—Calculation Agent and Calculations” in the accompanying product supplement. In addition, MS & Co. has determined the estimated value of the notes on the Trade Date.

Hedging And Trading Activity By Our Affiliates Could Potentially Adversely Affect The Value Of The Notes

One or more of our affiliates and/or third-party dealers expect to carry out hedging activities related to the notes (and possibly to other instruments linked to the Underlier or its component stocks), including trading in the stocks that constitute the Underlier as well as in other instruments related to the Underlier. As a result, these entities may be unwinding or adjusting hedge positions during the term of the notes, and the hedging strategy may involve greater and more frequent dynamic adjustments to the hedge as the Determination Date approaches. Some of our affiliates also trade the stocks that constitute the Underlier and other financial instruments related to the Underlier on a regular basis as part of their general broker-dealer and other businesses. Any of these hedging or trading activities on or prior to the Trade Date could potentially increase the Initial Underlier Level, and, therefore, could increase the level at or above which the Underlier must close on the Determination Date so that investors receive a positive return on their initial investment in the notes. Additionally, such hedging or trading activities during the term of the notes, including on the Determination Date, could adversely affect the level of the Underlier on the Determination Date, and, accordingly, the Cash Settlement Amount an investor will receive at maturity. Furthermore, if the dealer from which you purchase notes is to conduct trading and hedging activities for us in connection with the notes, that dealer may profit in connection with such trading and hedging activities and such profit, if any, will be in addition to the compensation that the dealer receives for the sale of the notes to you. You should be aware that the potential to earn a profit in connection with hedging activities may create a further incentive for the dealer to sell the notes to you, in addition to the compensation they would receive for the sale of the notes.

We May Sell An Additional Aggregate Face Amount Of Notes At A Different Issue Price

At our sole option, we may decide to sell an additional aggregate Face Amount of notes subsequent to the date hereof. The issue price of the notes in the subsequent sale may differ substantially (higher or lower) from the issue price you paid as provided on the cover of this document.

You May Be Required To Recognize Taxable Income On The Securities Offered By This Pricing Supplement Prior To Maturity

If you are a U.S. investor in a security, under the treatment of a security as a contingent payment debt instrument, you will generally be required to recognize taxable interest income in each year that you hold

the security. In addition, any gain you recognize under the rules applicable to contingent payment debt instruments will generally be treated as ordinary interest income rather than capital gain. You should review carefully the section entitled “United States Federal Income Tax Considerations” herein, in combination with the section entitled “United States Federal Taxation” in the accompanying tax supplement, and consult your tax adviser regarding the U.S. federal income tax consequences of an investment in the securities.

RISKS RELATING TO THE UNDERLIER

The Underlier Reflects The Price Return Of The Stocks Composing The Underlier, Not A Total Return

The return on the notes is based on the performance of the Underlier, which reflects the changes in the market prices of the stocks composing the Underlier. It is not, however, linked to a “total return” version of the Underlier, which, in addition to reflecting those price returns, would also reflect all dividends and other distributions paid on the stocks composing the Underlier. The return on the notes will not include such a total return feature.

Adjustments To The Underlier Could Adversely Affect The Value Of The Notes

The publisher of the Underlier may add, delete or substitute the stocks constituting the Underlier or make other methodological changes that could change the level of the Underlier. The publisher of the Underlier may discontinue or suspend calculation or publication of the Underlier at any time. In these circumstances, the calculation agent will have the sole discretion to substitute a successor index that is comparable to the discontinued Underlier and is permitted to consider indices that are calculated and published by the calculation agent or any of its affiliates. If the calculation agent determines that there is no appropriate successor index, the Cash Settlement Amount on the notes will be an amount based on the closing prices at maturity of the securities composing the Underlier at the time of such discontinuance, without rebalancing or substitution, computed by the calculation agent in accordance with the formula for calculating the Underlier last in effect prior to discontinuance of the Underlier.

Past Performance is No Guide to Future Performance

The actual performance of the Underlier over the term of the notes, as well as the amount payable at maturity, may bear little relation to the historical Closing Levels of the Underlier or to the hypothetical return examples set forth herein. We cannot predict the future performance of the Underlier.

THE UNDERLIER

The S&P 500® Equal Weight Index, which is calculated, maintained and published by S&P® Dow Jones Indices LLC (“S&P®”), is the equal-weight version of the S&P 500® Index. The S&P 500® Equal Weight Index includes the same constituents as the capitalization-weighted S&P 500® Index, but each company in the S&P 500® Equal Weight Index is allocated a fixed weight of 0.20% of the index total at each quarterly rebalancing. Therefore, the performance of the S&P 500® Equal Weight Index will differ, perhaps materially, from the performance of the S&P 500® Index, which is weighted unevenly based on market capitalization. For additional information about the S&P 500® Index, see the information set forth under “S&P® U.S. Indices—S&P 500® Index” in the accompanying index supplement.

In addition, information about the Underlier may be obtained from other sources including, but not limited to, the Underlier Publisher’s website (including information regarding (i) the Underlier’s top ten constituents and (ii) the Underlier’s sector weightings). We are not incorporating by reference into this document the website or any material it includes. Neither the issuer nor the agent makes any representation that such publicly available information regarding the Underlier is accurate or complete.

Information as of market close on October 30, 2026:

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n
\n Bloomberg Ticker Symbol: \n	\n SPW \n
\n Current Index Value: \n	\n 8,842.30 \n
\n 52 Weeks Ago: \n	\n 7,596.95 \n
\n 52 Week High (on 8/13/2026): \n	\n 9,017.75 \n
\n 52 Week Low (on 11/20/2025): \n	\n 7,373.49 \n

The following graph sets forth the daily Closing Levels of the Underlier for each quarter in the period from January 1, 2021 through October 30, 2026. The Closing Level of the Underlier on October 30, 2026 was 8,842.30. We obtained the information in the graph below from Bloomberg Financial Markets without independent verification. The Underlier has at times experienced periods of high volatility. The actual performance of the Underlier over the term of the notes, as well as the amount payable at maturity, may bear little relation to the historical Closing Levels of the Underlier or to the hypothetical return examples set forth herein. We cannot predict the future performance of the Underlier. You should not take the historical levels of the Underlier as an indication of its future performance, and no assurance can be given as to the Closing Level of the Underlier on the Determination Date.

\n \n \n \n \n \n \n \n \n \n \n \n \n

S&P 500® Equal Weight Index

Daily Underlier Closing Values

January 1, 2021 to October 30, 2026

\n \n

“Standard & Poor’s®,” “S&P®,” “S&P 500®,” “Standard & Poor’s 500” and “500” are trademarks of Standard and Poor’s Financial Services LLC. For more information, see “S&P® U.S. Indices” in the accompanying index supplement.

UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS

\n \n \n \n \n \n \n

You should review carefully the section in the accompanying tax supplement entitled “United States Federal Taxation.” The following discussion, when read in combination with that section, constitutes the full opinion of our counsel, Davis Polk & Wardwell LLP, regarding the material U.S. federal income tax consequences of owning and disposing of the securities offered by this pricing supplement.

Generally, this discussion assumes that you purchased a security for cash in the original issuance at the stated issue price and does not address other circumstances specific to you, including consequences that may arise due to any other investments relating to an underlier. Moreover, as discussed in the section entitled “United States Federal Taxation” in the accompanying tax supplement, we have not attempted to ascertain whether any issuer of any underlier to which the securities relate is a U.S. real property holding corporation or a passive foreign investment company. You should consult your tax adviser regarding these issues, including the effect any circumstances specific to you may have on the U.S. federal income tax consequences of your ownership of a security.

The securities should be treated as debt instruments for U.S. federal income tax purposes. Based on current market conditions, we intend to treat the securities for U.S. federal income tax purposes as contingent payment debt instruments, or “CPDIs,” as described in “United States Federal Taxation—Tax Consequences to U.S. Holders—Program Securities Treated as Debt Instruments—Program Securities Treated as Contingent Payment Debt Instruments” in the accompanying tax supplement. Under this treatment, regardless of your method of accounting for U.S. federal income tax purposes, you generally will be required to accrue interest income in each year on a constant yield to maturity basis at the “comparable yield,” as determined by us, adjusted upward or downward to reflect the difference, if any, between the actual and projected payments on the securities during the year. Upon a taxable disposition of a security, you generally will recognize taxable income or loss equal to the difference between the amount received and your tax basis in the security. You generally must treat any income realized on the taxable disposition as interest income and any loss as ordinary loss to the extent of previous interest inclusions, and the balance as capital loss, the deductibility of which is subject to limitations.

We have determined that the comparable yield for a security is a rate of 4.7710% per annum, compounded semi-annually. Based upon our determination of the comparable yield and assuming a semi-annual accrual period, the following table sets out the “projected payment schedule” per $1,000 principal amount of securities, as well as the amount of taxable interest income (without taking into account any adjustment to reflect the difference, if any, between the actual and the projected amount of the contingent payment(s) on a security) that will be deemed to have accrued with respect to a security during each calendar period.

\n \n \n \n \n \n

Projected Payment Date(s)

\n \n

Projected Payment(s) (per $1,000)

\n \n

Accrued OID During Calendar Period (per $1,000)

\n \n

Total Accrued OID (per $1,000)

\n \n \n

December 30, 2026

\n \n

$0.0000

\n \n

$7.4216

\n \n

$7.4216

\n \n \n

June 30, 2027

\n \n

$0.0000

\n \n

$24.0320

\n \n

$31.4536

\n \n \n

December 30, 2027

\n \n

$0.0000

\n \n

$24.6053

\n \n

$56.0589

\n \n \n

January 31, 2028

\n \n

$1,060.2576

\n \n

$4.1987

\n \n

$60.2576

\n \n \n \n

Neither the comparable yield nor the projected payment schedule constitutes a representation by us regarding the actual amount(s) that we will pay on the securities.

Non-U.S. Holders. If you are a Non-U.S. Holder (as defined in the accompanying tax supplement), please also read the section entitled “United States Federal Taxation—Tax Consequences to Non-U.S. Holders—Program Securities Treated as Debt Instruments” in the accompanying tax supplement.

As discussed under “United States Federal Taxation—Tax Consequences to Non-U.S. Holders—Dividend Equivalents under Section 871(m) of the Code” in the accompanying tax supplement, Section 871(m) of the Internal Revenue Code and Treasury regulations promulgated thereunder (“Section 871(m)”) generally impose a 30% withholding tax on dividend equivalents paid or deemed paid to Non-U.S. Holders with respect to certain financial instruments linked to U.S. equities or indices that include U.S. equities. The Treasury regulations, as modified by an Internal Revenue Service (the “IRS”) notice, exempt financial instruments issued prior to January 1, 2029 that do not have a “delta” of one. Based on certain representations made by us, our counsel is of the opinion that Section 871(m) should not apply to the securities with respect to Non-U.S. Holders. Our determination is not binding on the IRS, and the IRS may disagree with this determination.

\n \n \n \n \n \n \n

We will not be required to pay any additional amounts with respect to U.S. federal withholding taxes.

You should consult your tax adviser regarding the U.S. federal income tax consequences of an investment in the securities, as well as tax consequences arising under the laws of any state, local or non-U.S. taxing jurisdiction.

ADDITIONAL INFORMATION ABOUT THE NOTES

No interest or dividends: The notes will not pay interest or dividends.

No listing: The notes will not be listed on any securities exchange.

No redemption: The notes will not be subject to any redemption right.

Purchase at amount other than Face Amount: The amount we will pay you on the Stated Maturity Date for your notes will not be adjusted based on the issue price you pay for your notes, so if you acquire notes at a premium (or discount) to the Face Amount and hold them to the Stated Maturity Date, it could affect your investment in a number of ways. The return on your investment in such notes will be lower (or higher) than it would have been had you purchased the notes at the Face Amount. Also, if the Final Underlier Level is less than the Initial Underlier Level, the Minimum Cash Settlement Amount would represent a lower (or higher) percentage return on your investment than would be the case if you had purchased the notes at the Face Amount. Additionally, the Maximum Settlement Amount would represent a lower (or higher) percentage return than it would have had you purchased the notes at the Face Amount. See “Risk Factors—If You Purchase Your Notes At A Premium To The Face Amount, The Return On Your Investment Will Be Lower Than The Return On Notes Purchased At The Face Amount, And The Impact Of Certain Key Terms Of The Notes Will Be Negatively Affected” beginning on page 10 of this document.

Use of proceeds and hedging: The proceeds from the sale of the notes will be used by us for general corporate purposes. We will receive, in aggregate, $1,000 per note issued. The costs of the notes borne by you and described on page 2 comprise the cost of issuing, structuring and hedging the notes.

On or prior to the Trade Date, we will hedge our anticipated exposure in connection with the notes, by entering into hedging transactions with our affiliates and/or third-party dealers. We expect our hedging counterparties to take positions in stocks of the Underlier, futures and options contracts on the Underlier, and any component stocks of the Underlier listed on major securities markets or positions in any other available securities or instruments that they may wish to use in connection with such hedging. Such purchase activity could increase the level of the Underlier on the Trade Date, and therefore increase the level at or above which the Underlier must close on the Determination Date so that investors receive a positive return on the notes. In addition, through our affiliates, we are likely to modify our hedge position throughout the term of the notes, including on the Determination Date, by purchasing and selling the stocks constituting the Underlier, futures or options contracts on the Underlier or its component stocks listed on major securities markets or positions in any other available securities or instruments that we may wish to use in connection with such hedging activities. As a result, these entities may be unwinding or adjusting hedge positions during the term of the notes, and the hedging strategy may involve greater and more frequent dynamic adjustments to the hedge as the Determination Date approaches. We cannot give any assurance that our hedging activities will not affect the level of the Underlier, and, therefore, adversely affect the value of the notes or the payment you will receive at maturity. For further information on our use of proceeds and hedging, see “Use of Proceeds and Hedging” in the accompanying product supplement.

Additional considerations: Client accounts over which Morgan Stanley, Morgan Stanley Wealth Management or any of their respective subsidiaries have investment discretion are not permitted to purchase the notes, either directly or indirectly.

Supplemental information regarding plan of distribution; conflicts of interest: We have agreed to sell to MS & Co., and MS & Co. has agreed to purchase from us, the aggregate face amount of the offered notes specified on the cover of this pricing supplement. MS & Co. proposes initially to offer the notes to an unaffiliated securities dealer at the price to public set forth on the cover of this pricing supplement less a concession of 0.84% of the face amount. MS & Co., the agent for this offering, is our affiliate. Because MS & Co. is both our affiliate and a member of the Financial Industry Regulatory

Authority, Inc. (“FINRA”), the underwriting arrangements for this offering must comply with the requirements of FINRA Rule 5121 regarding a FINRA member firm’s distribution of the securities of an affiliate and related conflicts of interest. In accordance with FINRA Rule 5121, MS & Co. may not make sales in offerings of the notes to any of its discretionary accounts without the prior written approval of the customer.

MS & Co. is an affiliate of MSFL and a wholly owned subsidiary of Morgan Stanley, and it and other affiliates of ours expect to make a profit by selling, structuring and, when applicable, hedging the notes.

MS & Co. will conduct this offering in compliance with the requirements of FINRA Rule 5121 of the Financial Industry Regulatory Authority, Inc., which is commonly referred to as FINRA, regarding a FINRA member firm’s distribution of the notes of an affiliate and related conflicts of interest. MS & Co. or any of our other affiliates may not make sales in this offering to any discretionary account. See “Plan of Distribution (Conflicts of Interest)” and “Use of Proceeds and Hedging” in the accompanying product supplement.

Settlement: We expect to deliver the notes against payment for the notes on the Original Issue Date, which will be the third scheduled Business Day following the Trade Date. Under Rule 15c6-1 of the Securities Exchange Act of 1934, as amended, trades in the secondary market generally are required to settle in one Business Day, unless the parties to a trade expressly agree otherwise. Accordingly, if the Original Issue Date is more than one Business Day after the Trade Date, purchasers who wish to transact in the notes more than one Business Day prior to the Original Issue Date will be required to specify alternative settlement arrangements to prevent a failed settlement.

WHERE YOU CAN FIND MORE INFORMATION

MSFL and Morgan Stanley have filed a registration statement (including a prospectus, as supplemented by the product supplement, the index supplement and the tax supplement) with the Securities and Exchange Commission, or SEC, for the offering to which this communication relates. You should read the prospectus in that registration statement, the product supplement, the index supplement, the tax supplement and any other documents relating to this offering that MSFL and Morgan Stanley have filed with the SEC for more complete information about MSFL, Morgan Stanley and this offering. You may get these documents without cost by visiting EDGAR on the SEC web site at www.sec.gov. Alternatively, MSFL and/or Morgan Stanley will arrange to send you the product supplement, index supplement, tax supplement and prospectus if you so request by calling toll-free 800-584-6837.

You may access these documents on the SEC web site at www.sec.gov as follows:

Product Supplement dated April 8, 2026

Index Supplement dated April 8, 2026

Tax Supplement dated April 8, 2026

Prospectus dated April 8, 2026

Terms used but not defined in this document are defined in the product supplement, in the index supplement, in the tax supplement or in the prospectus.

VALIDITY OF THE NOTES

In the opinion of Davis Polk & Wardwell LLP, as special counsel to MSFL and Morgan Stanley, when the notes offered by this pricing supplement have been issued by MSFL pursuant to the MSFL Senior Debt Indenture (as defined in the accompanying prospectus), the trustee and/or paying agent has made, in accordance with the instructions from MSFL, the appropriate entries or notations in its records relating to the master note that represents such notes (the “master note”), and such notes have been delivered against payment as contemplated herein, such notes will be valid and binding obligations of MSFL and the related guarantee will be a valid and binding obligation of Morgan Stanley, enforceable in accordance with their terms, subject to applicable bankruptcy, insolvency and similar laws affecting creditors’ rights generally, concepts of reasonableness and equitable principles of general applicability (including, without limitation, concepts of good faith, fair dealing and the lack of bad faith), provided that such counsel expresses no opinion as to (i) the effect of fraudulent conveyance, fraudulent transfer or similar provision of applicable law on the conclusions expressed above and (ii) any provision of the MSFL Senior Debt Indenture that purports to avoid the effect of fraudulent conveyance, fraudulent transfer or similar provision of applicable law by limiting the amount of Morgan Stanley’s obligation under the related guarantee. This opinion is given as of the date hereof and is limited to the laws of the State of New York, the General Corporation Law of the State of Delaware and the Delaware Limited Liability Company Act, except that counsel expresses no opinion as to (i) any law, rule or regulation that is applicable to Morgan Stanley or MSFL, the MSFL Senior Debt Indenture, the notes (together with the MSFL Senior Debt Indenture, the “Documents”) or such transactions solely because such law, rule or regulation is part of a regulatory regime applicable to any party to any of the Documents or any of its affiliates due to the specific assets or business of such party or such affiliate or (ii) any law, rule or regulation relating to national security. In addition, this opinion is subject to customary assumptions about the trustee’s authorization, execution and delivery of the MSFL Senior Debt Indenture and its authentication of the master note and the validity, binding nature and enforceability of the MSFL Senior Debt Indenture with respect to the trustee, all as stated in the letter of such counsel dated February 23, 2026, which is Exhibit 5-a to the Registration Statement on Form S-3 filed by Morgan Stanley on February 23, 2026.

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