Morgan Stanley

05/07/2024 | Press release | Distributed by Public on 05/07/2024 15:52

Primary Offering Prospectus - Form 424B2

July 2024

Preliminary Pricing Supplement No. 2,874

Registration Statement Nos. 333-275587; 333-275587-01

Dated July 5, 2024

Filed pursuant to Rule 424(b)(2)

Morgan Stanley Finance LLC

Structured Investments

Opportunities in U.S. Equities

Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Fully and Unconditionally Guaranteed by Morgan Stanley

Principal at Risk Securities

The Buffered Securities offered are unsecured obligations of Morgan Stanley Finance LLC ("MSFL") and are fully and unconditionally guaranteed by Morgan Stanley. The Buffered Securities will pay no interest, provide a minimum payment at maturity of only 20% of the stated principal amount and have the terms described in the accompanying product supplement for participation securities and prospectus, as supplemented or modified by this document. At maturity, if the underlying shares have appreciated in value, investors will receive the stated principal amount of their investment plus a return reflecting 100% of the upside performance of the underlying shares, subject to the maximum payment at maturity. If the underlying shares have depreciated in value, but the underlying shares have not declined by more than the specified buffer amount, the Buffered Securities will redeem for par. However, if the underlying shares have declined by more than the buffer amount, investors will lose 1% for every 1% decline beyond the specified buffer amount, subject to the minimum payment at maturity of 20% of the stated principal amount. Investors may lose up to 80% of the stated principal amount of the Buffered Securities. The Buffered Securities are for investors who seek a fund-based return and who are willing to risk their principal and forgo current income and upside above the maximum payment at maturity in exchange for the buffer feature that applies to a limited range of performance of the underlying shares. The Buffered Securities 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 Buffered Securities 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.

SUMMARY TERMS

Issuer:

Morgan Stanley Finance LLC

Guarantor:

Morgan Stanley

Maturity date:

August 4, 2027

Underlying shares:

Shares of the iShares® Semiconductor ETF (the "Fund")

Aggregate principal amount:

$

Payment at maturity per Buffered Security:

■If the final share price is greater than the initial share price:
$1,000 + upside payment

In no event will the payment at maturity exceed the maximum payment at maturity.

■If the final share price is less than or equal to the initial share price but has decreased from the initial share price by an amount less than or equal to the buffer amount of 20%: $1,000

■If the final share price is less than the initial share price and has decreased from the initial share price by an amount greater than the buffer amount of 20%:

($1,000 x share performance factor) + $200

Under these circumstances, the payment at maturity will be less than the stated principal amount of $1,000.

However, under no circumstances will the Buffered Securities pay less than $200 per Buffered Security at maturity.

Upside payment:

$1,000 x share percent increase

Share percent increase:

(final share price - initial share price) / initial share price

Share performance factor:

final share price / initial share price

Initial share price:

$ , which is the closing price of one underlying share on the pricing date

Final share price:

The closing price of one underlying share on the valuation date times the adjustment factor on such date

Adjustment factor:

1.0, subject to adjustment in the event of certain events affecting the underlying shares

Valuation date:

July 30, 2027, subject to postponement for non-trading days and certain market disruption events

Buffer amount:

20%. As a result of the buffer amount of 20%, the value at or above which the underlying shares must close on the valuation date so that investors do not suffer a loss on their initial investment in the Buffered Securities is $ , which is 80% of the initial share price.

Minimum payment at maturity:

$200 per Buffered Security (20% of the stated principal amount)

Maximum payment at maturity:

$1,720 per Buffered Security (172% of the stated principal amount)

Interest:

None

Stated principal amount:

$1,000 per Buffered Security

Issue price:

$1,000 per Buffered Security

Pricing date:

July 30, 2024

Original issue date:

August 2, 2024 (3 business days after the pricing date)

CUSIP:

61776MXU4

ISIN:

US61776MXU43

Listing:

The Buffered Securities will not be listed on any securities exchange.

Agent:

Morgan Stanley & Co. LLC ("MS & Co."), an affiliate of MSFL and a wholly owned subsidiary of Morgan Stanley. See "Supplemental information regarding plan of distribution; conflicts of interest."

Estimated value on the pricing date:

Approximately $949.50 per Buffered Security, or within $45.00 of that estimate. See "Investment Summary" on page 2.

Commissions and issue price:

Price to public

Agent's commissions(1)

Proceeds to us(2)

Per Buffered Security

$1,000

$

$

Total

$

$

$

(1)Selected dealers and their financial advisors will collectively receive from the agent, MS & Co., a fixed sales commission of $ for each Buffered Security they sell. See "Supplemental information regarding plan of distribution; conflicts of interest." For additional information, see "Plan of Distribution (Conflicts of Interest)" in the accompanying product supplement for participation securities.

(2)See "Use of proceeds and hedging" on page 15.

The Buffered Securities involve risks not associated with an investment in ordinary debt securities. See "Risk Factors" beginning on page 6.

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

The Buffered Securities 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 and prospectus, each of which can be accessed via the hyperlinks below. When you read the accompanying product supplement, please note that all references in such supplement to the prospectus dated November 16, 2023, or to any sections therein, should refer instead to the accompanying prospectus dated April 12, 2024 or to the corresponding sections of such prospectus, as applicable. Please also see "Additional Terms of the Buffered Securities" and "Additional Information About the Buffered Securities" at the end of this document.

As used in this document, "we," "us" and "our" refer to Morgan Stanley or MSFL, or Morgan Stanley and MSFL collectively, as the context requires.

Product Supplement for Participation Securities dated November 16, 2023Prospectus dated April 12, 2024

Morgan Stanley Finance LLC

Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Principal at Risk Securities

Investment Summary

Buffered Participation Securities

Principal at Risk Securities

The Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027 (the "Buffered Securities") can be used:

■To achieve similar levels of upside exposure to the underlying shares as a direct investment, subject to the maximum payment at maturity

■To obtain a buffer against a specified level of negative performance in the underlying shares

Maturity:

Approximately 3 years

Maximum payment at maturity:

$1,720 per Buffered Security (172% of the stated principal amount)

Minimum payment at maturity:

$200 per Buffered Security (20% of the stated principal amount). Investors may lose up to 80% of the stated principal amount of the Buffered Securities.

Buffer amount:

20%, with 1-to-1 downside exposure below the buffer

Coupon:

None

The original issue price of each Buffered Security is $1,000. This price includes costs associated with issuing, selling, structuring and hedging the Buffered Securities, which are borne by you, and, consequently, the estimated value of the Buffered Securities on the pricing date will be less than $1,000. We estimate that the value of each Buffered Security on the pricing date will be approximately $949.50, or within $45.00 of that estimate. Our estimate of the value of the Buffered Securities as determined on the pricing date will be set forth in the final pricing supplement.

What goes into the estimated value on the pricing date?

In valuing the Buffered Securities on the pricing date, we take into account that the Buffered Securities comprise both a debt component and a performance-based component linked to the underlying shares. The estimated value of the Buffered Securities is determined using our own pricing and valuation models, market inputs and assumptions relating to the underlying shares, instruments based on the underlying shares, 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 Buffered Securities?

In determining the economic terms of the Buffered Securities, including the maximum payment at maturity, the buffer amount and the minimum payment at maturity, 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 Buffered Securities would be more favorable to you.

What is the relationship between the estimated value on the pricing date and the secondary market price of the Buffered Securities?

The price at which MS & Co. purchases the Buffered Securities in the secondary market, absent changes in market conditions, including those related to the underlying shares, may vary from, and be lower than, the estimated value on the pricing 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 Buffered Securities are not fully deducted upon issuance, for a period of up to 6 months following the issue date, to the extent that MS & Co. may buy or sell the Buffered Securities in the secondary market, absent changes in market conditions, including those related to the underlying shares, 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 Buffered Securities, and, if it once chooses to make a market, may cease doing so at any time.

July 2024Page 2

Morgan Stanley Finance LLC

Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Principal at Risk Securities

Key Investment Rationale

The Buffered Securities offer upside exposure to the underlying shares, subject to the maximum payment at maturity, while providing limited protection against negative performance of the underlying shares. Once the underlying shares have decreased in price by more than the specified buffer amount, investors are exposed to the negative performance of the underlying shares, subject to the minimum payment at maturity. At maturity, if the underlying shares have appreciated, investors will receive the stated principal amount of their investment plus a return reflecting 100% of the share percent increase, subject to the maximum payment at maturity. At maturity, if the underlying shares have depreciated and (i) if the closing price of the underlying shares has not declined from the initial share price by more than the specified buffer amount, the Buffered Securities will redeem for par, or (ii) if the closing price of the underlying shares has declined by more than the buffer amount, the investor will lose 1% for every 1% decline beyond the specified buffer amount, subject to theminimum payment at maturity. Investors may lose up to 80% of the stated principal amount of the Buffered Securities.

Upside Scenario

The underlying shares increase in price, and, at maturity, the Buffered Securities redeem for the stated principal amount of $1,000 plus a return reflecting 100% of the share percent increase, subject to the maximum payment at maturity of $1,720 per Buffered Security (172% of the stated principal amount).

Par Scenario

The underlying shares decline in price by no more than 20%, and, at maturity, the Buffered Securities redeem for the stated principal amount of $1,000.

Downside Scenario

The underlying shares decline in price by more than 20%, and, at maturity, the Buffered Securities redeem for less than the stated principal amount by an amount that is proportionate to the percentage decrease of the underlying shares from the initial share price, plus the buffer amount of 20%. (Example: if the underlying shares decrease in price by 50%, investors would lose 30% of their principal and the Buffered Securities will redeem for $700, or 70% of the stated principal amount.) The minimum payment at maturity is $200 per Buffered Security.

July 2024Page 3

Morgan Stanley Finance LLC

Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Principal at Risk Securities

How the Buffered Securities Work

Payoff Diagram

The payoff diagram below illustrates the payment at maturity on the Buffered Securities based on the following terms:

Stated principal amount:

$1,000 per Buffered Security

Buffer amount:

20%

Maximum payment at maturity:

$1,720 per Buffered Security (172% of the stated principal amount)

Minimum payment at maturity:

$200 per Buffered Security

Buffered Securities Payoff Diagram

How it works

■Upside Scenario. If the final share price is greater than the initial share price, investors will receive the $1,000 stated principal amount plus 100% of the appreciation of the underlying shares over the term of the Buffered Securities, subject to the maximum payment at maturity. An investor will realize the maximum payment at maturity of $1,720 per Buffered Security (172% of the stated principal amount) at a final share price of 172% of the initial share price.

oIf the value of the underlying shares appreciates 2%, the investor would receive a 2% return, or $1,020 per Buffered Security.

oIf the value of the underlying shares appreciates 300%, the investor would receive only the maximum payment at maturity of $1,720 per Buffered Security, or 172% of the stated principal amount.

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Morgan Stanley Finance LLC

Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Principal at Risk Securities

■Par Scenario. If the final share price is less than or equal to the initial share price but has decreased from the initial share price by an amount less than or equal to the buffer amount of 20%, investors will receive the stated principal amount of $1,000 per Buffered Security.

oIf the value of the underlying shares depreciates 5%, investors will receive the $1,000 stated principal amount.

■Downside Scenario. If the final share price is less than the initial share price and has decreased from the initial share price by an amount greater than the buffer amount of 20%, investors will receive an amount that is less than the stated principal amount by an amount that is proportionate to the percentage decrease in the value of the underlying shares from the initial share price, plus the buffer amount of 20%. The minimum payment at maturity is $200 per Buffered Security.

oFor example, if the value of the underlying shares depreciates 45%, investors would lose 25% of their principal and receive only $750 per Buffered Security at maturity, or 75% of the stated principal amount.

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Morgan Stanley Finance LLC

Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Principal at Risk Securities

Risk Factors

This section describes the material risks relating to the Buffered Securities. For further discussion of these and other risks, you should read the section entitled "Risk Factors" in the accompanying product supplement for participation securities and prospectus. You should also consult with your investment, legal, tax, accounting and other advisers in connection with your investment in the Buffered Securities.

Risks Relating to an Investment in the Buffered Securities

■The Buffered Securities do not pay interest and provide a minimum payment at maturity of only 20% of your principal. The terms of the Buffered Securities differ from those of ordinary debt securities in that the Buffered Securities do not pay interest, and provide a minimum payment at maturity of only 20% of the stated principal amount of the Buffered Securities, subject to our credit risk. If the final share price is less than 80% of the initial share price, you will receive for each Buffered Security that you hold a payment at maturity that is less than the stated principal amount of each Buffered Security by an amount proportionate to the decline in the closing value of the underlying shares from the initial share price, plus $200 per Buffered Security. Accordingly, investors may lose up to 80% of the stated principal amount of the Buffered Securities.

■The appreciation potential of the Buffered Securities is limited by the maximum payment at maturity.The appreciation potential of the Buffered Securities is limited by the maximum payment at maturity of $1,720 per Buffered Security, or 172% of the stated principal amount. Investors will not participate in any further appreciation of the underlying shares, which may be significant.

■The market price of the Buffered Securities will be influenced by many unpredictable factors. Several factors, many of which are beyond our control, will influence the value of the Buffered Securities in the secondary market and the price at which MS & Co. may be willing to purchase or sell the Buffered Securities in the secondary market, including the trading price, volatility (frequency and magnitude of changes in value) and dividends of the underlying shares and of the stocks composing the NYSE Semiconductor Index (the "share underlying index"), interest and yield rates in the market, time remaining until the Buffered Securities mature, geopolitical conditions and economic, financial, political, regulatory or judicial events that affect the underlying shares or equities markets generally and which may affect the final share price of the underlying shares, the occurrence of certain events affecting the underlying shares that may or may not require an adjustment to the adjustment factor, and any actual or anticipated changes in our credit ratings or credit spreads. Generally, the longer the time remaining to maturity, the more the market price of the Buffered Securities will be affected by the other factors described above. The price of the underlying shares may be, and has recently been, volatile, and we can give you no assurance that the volatility will lessen. See "iShares® Semiconductor ETF Overview" below. You may receive less, and possibly significantly less, than the stated principal amount per Buffered Security if you try to sell your Buffered Securities prior to maturity.

■The Buffered Securities 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 Buffered Securities. You are dependent on our ability to pay all amounts due on the Buffered Securities at maturity and therefore you are subject to our credit risk. If we default on our obligations under the Buffered Securities, your investment would be at risk and you could lose some or all of your investment. As a result, the market value of the Buffered Securities 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 Buffered Securities.

■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 MSFL securities if they make claims in respect of such securities 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 securities issued by MSFL should accordingly assume that in any such proceedings they would 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 Buffered Securities is not linked to the value of the underlying shares at any time other than the valuation date. The final share price will be based on the closing price on the valuation date, subject to postponement for non-trading days and certain market disruption events. Even if the value of the underlying shares appreciates prior to the valuation date but then drops by the valuation date by more than 20%, the payment at maturity will be less, and may be significantly less, than it would have been had the payment at maturity been linked to the value of the underlying shares prior to such drop. Although the actual value of the underlying shares on the stated maturity date or at other times during the term of the Buffered Securities may be higher than the closing price on the valuation date, the payment at maturity will be based solely on the closing price on the valuation date.

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Morgan Stanley Finance LLC

Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Principal at Risk Securities

■Investing in the Buffered Securities is not equivalent to investing in the underlying shares or the stocks composing the share underlying index. Investing in the Buffered Securities is not equivalent to investing in the underlying shares, the share underlying index or the stocks that constitute the share underlying index. Investors in the Buffered Securities will not have voting rights or rights to receive dividends or other distributions or any other rights with respect to the underlying shares or the stocks that constitute the share underlying index.

■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 Buffered Securities in the original issue price reduce the economic terms of the Buffered Securities, cause the estimated value of the Buffered Securities 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 Buffered Securities 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 Buffered Securities in the original issue price and the lower rate we are willing to pay as issuer make the economic terms of the Buffered Securities less favorable to you than they otherwise would be.

However, because the costs associated with issuing, selling, structuring and hedging the Buffered Securities are not fully deducted upon issuance, for a period of up to 6 months following the issue date, to the extent that MS & Co. may buy or sell the Buffered Securities in the secondary market, absent changes in market conditions, including those related to the underlying shares, 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 Buffered Securities 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 Buffered Securities than those generated by others, including other dealers in the market, if they attempted to value the Buffered Securities. In addition, the estimated value on the pricing date does not represent a minimum or maximum price at which dealers, including MS & Co., would be willing to purchase your Buffered Securities in the secondary market (if any exists) at any time. The value of your Buffered Securities at any time after the date of this document 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 of the Buffered Securities will be influenced by many unpredictable factors" above.

■The Buffered Securities will not be listed on any securities exchange and secondary trading may be limited. The Buffered Securities will not be listed on any securities exchange. Therefore, there may be little or no secondary market for the Buffered Securities. MS & Co. may, but is not obligated to, make a market in the Buffered Securities 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 Buffered Securities, 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 Buffered Securities. Even if there is a secondary market, it may not provide enough liquidity to allow you to trade or sell the Buffered Securities easily. Since other broker-dealers may not participate significantly in the secondary market for the Buffered Securities, the price at which you may be able to trade your Buffered Securities 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 Buffered Securities, it is likely that there would be no secondary market for the Buffered Securities. Accordingly, you should be willing to hold your Buffered Securities to maturity.

■The calculation agent, which is a subsidiary of Morgan Stanley and an affiliate of MSFL, will make determinations with respect to the Buffered Securities. As calculation agent, MS & Co. will determine the initial share price and the final share price, and will calculate the amount of cash 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 judgements, 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 share price in the event of a market disruption event or discontinuance of the share underlying index. These potentially subjective determinations may adversely affect the payout to you at maturity. For further information regarding these types of determinations, see "Description of Securities-Postponement of Valuation Date(s)" and "-Calculation Agent and Calculations" in the accompanying product supplement. In addition, MS & Co. has determined the estimated value of the Buffered Securities on the pricing date.

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Morgan Stanley Finance LLC

Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Principal at Risk Securities

■Hedging and trading activity by our affiliates could potentially adversely affect the value of the Buffered Securities. One or more of our affiliates and/or third-party dealers expect to carry out hedging activities related to the Buffered Securities (and to other instruments linked to the underlying shares or the share underlying index), including trading in the underlying shares and in other instruments related to the underlying shares or the share underlying index. As a result, these entities may be unwinding or adjusting hedge positions during the term of the Buffered Securities, and the hedging strategy may involve greater and more frequent dynamic adjustments to the hedge as the valuation date approaches. Some of our affiliates also trade the underlying shares or the stocks that constitute the share underlying index and other financial instruments related to the underlying shares or the share underlying index 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 pricing date could potentially increase the initial share price, and, therefore, could increase the price at or above which the shares of the Fund must close on the valuation date so that investors do not suffer a loss on their initial investment in the Buffered Securities. Additionally, such hedging or trading activities during the term of the Buffered Securities, including on the valuation date, could adversely affect the closing price of the shares of the Fund on the valuation date, and, accordingly, the amount of cash an investor will receive at maturity.

■The U.S. federal income tax consequences of an investment in the Buffered Securities are uncertain. Please read the discussion under "Additional Information-Tax considerations" in this document and the discussion under "United States Federal Taxation" in the accompanying product supplement for participation securities(together, the "Tax Disclosure Sections") concerning the U.S. federal income tax consequences of an investment in the Buffered Securities. As discussed in the Tax Disclosure Sections, there is a risk that the "constructive ownership" rule could apply, in which case all or a portion of any long-term capital gain recognized by a U.S. Holder could be recharacterized as ordinary income and an interest charge could be imposed. In addition, there is no direct legal authority regarding the proper U.S. federal tax treatment of the Buffered Securities, and we do not plan to request a ruling from the Internal Revenue Service (the "IRS"). Consequently, significant aspects of the tax treatment of the Buffered Securities are uncertain, and the IRS or a court might not agree with the tax treatment of a Buffered Security as a single financial contract that is an "open transaction" for U.S. federal income tax purposes. If the IRS were successful in asserting an alternative treatment of the Buffered Securities, the tax consequences of the ownership and disposition of the Buffered Securities, including the timing and character of income recognized by U.S. Holders and the withholding tax consequences to Non-U.S. Holders, might be materially and adversely affected. Moreover, future legislation, Treasury regulations or IRS guidance could adversely affect the U.S. federal tax treatment of the Buffered Securities, possibly retroactively.

Both U.S. and Non-U.S. Holders should consult their tax advisers regarding the U.S. federal income tax consequences of an investment in the Buffered Securities, including possible alternative treatments, as well as any tax consequences arising under the laws of any state, local or non-U.S. taxing jurisdiction.

Risks Relating to the Underlying Shares

■There are risks associated with investments concentrated in the semiconductor sector. All or substantially all of the equity securities held by the underlying shares are issued by companies whose primary line of business is directly associated with the design, distribution, manufacture and sale of semiconductors. The values of companies that are involved in the semiconductor industry are particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation, changes in the prices and availability of raw materials and competition in the semiconductor industry, both domestically and internationally, including competition from foreign competitors with potentially lower productions costs. Such companies may also be heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability. Additionally, such companies may face competition for the services of, and difficulties in employing and retaining, qualified personnel. Any of these factors could cause the value of some or all of the securities included in the underlying shares, and thus, the price of the underlying shares, to decline during the term of the Buffered Securities.

■Adjustments to the underlying shares or to the share underlying indexcould adversely affect the value of the Buffered Securities. The investment adviser to the Fund, BlackRock Fund Advisors (the "Investment Adviser"), seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the share underlying index. Pursuant to its investment strategy or otherwise, the Investment Adviser may add, delete or substitute the stocks composing the Fund. Any of these actions could adversely affect the price of the underlying shares and, consequently, the value of the Buffered Securities. The publisher of the share underlying index is responsible for calculating and maintaining the share underlying index. The publisher may add, delete or substitute the stocks constituting the share underlying index or make other methodological changes that could change the value of the share underlying index, and, consequently, the price of the underlying shares and the value of the Buffered Securities. The publisher of the share underlying index may discontinue or suspend calculation or publication of the share underlying index at any time. If trading in the underlying shares is permanently discontinued and/or the Fund is liquidated or otherwise terminated, and the publisher subsequently discontinues publication of the share underlying index, the calculation agent will have the sole discretion to substitute a successor index that is comparable to the discontinued share underlying index and is permitted to consider indices that are calculated and published by the calculation agent or any of its affiliates. Any of these actions could adversely affect the price of the underlying shares, and, consequently, the value of the Buffered Securities.

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Morgan Stanley Finance LLC

Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Principal at Risk Securities

■The performance and market price of the Fund, particularly during periods of market volatility, may not correlate with the performance of the share underlying index, the performance of the component securities of the share underlying index or the net asset value per share of the Fund. The Fund does not fully replicate the share underlying index and may hold securities that are different than those included in the share underlying index. In addition, the performance of the Fund will reflect additional transaction costs and fees that are not included in the calculation of the share underlying index. All of these factors may lead to a lack of correlation between the performance of the Fund and the share underlying index. In addition, corporate actions (such as mergers and spin-offs) with respect to the equity securities underlying the Fund may impact the variance between the performances of the Fund and the share underlying index. Finally, because the shares of the Fund are traded on an exchange and are subject to market supply and investor demand, the market price of one share of the Fund may differ from the net asset value per share of the Fund.

In particular, during periods of market volatility, or unusual trading activity, trading in the securities underlying the Fund may be disrupted or limited, or such securities may be unavailable in the secondary market. Under these circumstances, the liquidity of the Fund may be adversely affected, market participants may be unable to calculate accurately the net asset value per share of the Fund, and their ability to create and redeem shares of the Fund may be disrupted. Under these circumstances, the market price of shares of the Fund may vary substantially from the net asset value per share of the Fund or the level of the share underlying index.

For all of the foregoing reasons, the performance of the Fund may not correlate with the performance of the share underlying index, the performance of the component securities of the share underlying index or the net asset value per share of the Fund. Any of these events could materially and adversely affect the price of the shares of the Fund and, therefore, the value of the Buffered Securities. Additionally, if market volatility or these events were to occur on the valuation date, the calculation agent would maintain discretion to determine whether such market volatility or events have caused a market disruption event to occur, and such determination would affect the payment at maturity of the Buffered Securities. If the calculation agent determines that no market disruption event has taken place, the payment at maturity would be based solely on the published closing price per share of the Fund on the valuation date, even if the Fund's shares are underperforming the share underlying index or the component securities of the share underlying index and/or trading below the net asset value per share of the Fund.

■The antidilution adjustments the calculation agent is required to make do not cover every event that could affect the underlying shares. MS & Co., as calculation agent, will adjust the amount payable at maturity for certain events affecting the underlying shares. However, the calculation agent will not make an adjustment for every event that could affect the underlying shares. If an event occurs that does not require the calculation agent to adjust the adjustment factor, the market price of the Buffered Securities may be materially and adversely affected.

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Principal at Risk Securities

iShares® Semiconductor ETF Overview

The iShares® Semiconductor ETF is an exchange-traded fund of iShares Trust ("iShares"), a registered investment company, that seeks to track the investment results, before fees and expenses, of the NYSE Semiconductor Index. Prior to June 21, 2021, the ETF tracked the PHLX Semiconductor Sector Index. Effective June 21, 2021, the ICE Semiconductor Index replaced the PHLX Semiconductor Sector Index as the underlying index and the name of the ETF changed from the iShares® PHLX Semiconductor ETF to the iShares® Semiconductor ETF. Effective November 3, 2023, the ICE Semiconductor Index was renamed the NYSE Semiconductor Index. iShares is a registered investment company that consists of numerous separate investment portfolios, including the iShares® Semiconductor ETF. It is possible that this fund may not fully replicate the performance of the NYSE Semiconductor Index due to the temporary unavailability of certain securities in the secondary market or due to other extraordinary circumstances. Information provided to or filed with the Securities and Exchange Commission (the "Commission") by iShares pursuant to the Securities Act of 1933 and the Investment Company Act of 1940 can be located by reference to Commission file numbers 333-92935 and 811-09729, respectively, through the Commission's website at www.sec.gov. In addition, information may be obtained from other publicly available sources. Neither the issuer nor the agent makes any representation that any such publicly available information regarding the underlying shares is accurate or complete.

Information as of market close on July 3, 2024:

Bloomberg Ticker Symbol:

SOXX UQ

Current Share Price:

$254.39

52 Weeks Ago:

$170.57

52 Week High (on 6/18/2024):

$259.30

52 Week Low (on 10/30/2023):

$146.05

The following graph sets forth the daily closing price of the underlying shares for the period from January 1, 2019 through July 3, 2024. The related table sets forth the published high and low closing prices as well as the end-of-quarter closing prices of the underlying shares for each quarter in the same period. The closing price of the underlying shares on July 3, 2024 was $254.39. We obtained the information in the graph and table below from Bloomberg Financial Markets, without independent verification. The historical prices of the underlying shares should not be taken as an indication of future performance, and no assurance can be given as to the closing price of the underlying shares on the valuation date.

Shares of the iShares® Semiconductor ETF
Daily Closing Prices
January 1, 2019 to July 3, 2024

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iShares® Semiconductor ETF (CUSIP 464287523)

High ($)

Low ($)

Period End ($)

2019

First Quarter

65.30

49.61

63.20

Second Quarter

71.92

58.83

66.10

Third Quarter

73.47

64.51

70.57

Fourth Quarter

84.31

68.51

83.64

2020

First Quarter

89.60

58.55

68.48

Second Quarter

90.85

64.63

90.38

Third Quarter

107.54

89.05

101.54

Fourth Quarter

127.53

100.46

126.59

2021

First Quarter

146.10

125.16

141.45

Second Quarter

151.50

129.06

151.50

Third Quarter

158.91

142.12

148.64

Fourth Quarter

185.20

144.92

180.85

2022

First Quarter

184.43

140.31

157.34

Second Quarter

157.12

116.77

116.77

Third Quarter

141.11

106.11

106.11

Fourth Quarter

129.41

99.46

116.07

2023

First Quarter

148.32

114.74

148.32

Second Quarter

172.14

133.59

169.11

Third Quarter

178.53

153.13

158.00

Fourth Quarter

193.76

146.05

192.03

2024

First Quarter

237.63

179.58

225.81

Second Quarter

259.30

198.41

246.63

Third Quarter (through July 3, 2024)

254.39

246.69

254.39

This document relates only to the Buffered Securities offered hereby and does not relate to the underlying shares. We have derived all disclosures contained in this document regarding iShares from the publicly available documents described in the preceding paragraph. In connection with the offering of the Buffered Securities, neither we nor the agent has participated in the preparation of such documents or made any due diligence inquiry with respect to iShares. Neither we nor the agent makes any representation that such publicly available documents or any other publicly available information regarding iShares is accurate or complete. Furthermore, we cannot give any assurance that all events occurring prior to the date hereof (including events that would affect the accuracy or completeness of the publicly available documents described in the preceding paragraph) that would affect the trading price of the underlying shares (and therefore the price of the underlying shares at the time we price the Buffered Securities) have been publicly disclosed. Subsequent disclosure of any such events or the disclosure of or failure to disclose material future events concerning iShares could affect the value received at maturity with respect to the Buffered Securities and therefore the value of the Buffered Securities.

Neither we nor any of our affiliates makes any representation to you as to the performance of the underlying shares.

We and/or our affiliates may presently or from time to time engage in business with iShares. In the course of such business, we and/or our affiliates may acquire non-public information with respect to iShares, and neither we nor any of our affiliates undertakes to disclose any such information to you. In addition, one or more of our affiliates may publish research reports with respect to the underlying shares. The statements in the preceding two sentences are not intended to affect the rights of investors in the Buffered Securities under the securities laws. As a prospective purchaser of the Buffered Securities, you should undertake an independent investigation of iShares as in your judgment is appropriate to make an informed decision with respect to an investment linked to the underlying shares.

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Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Principal at Risk Securities

"iShares®" is a registered mark of BlackRock Fund Advisors or its affiliates ("BFA"). The Buffered Securities are not sponsored, endorsed, sold, or promoted by BFA. BFA makes no representations or warranties to the owners of the Buffered Securities or any member of the public regarding the advisability of investing in the Buffered Securities. BFA has no obligation or liability in connection with the operation, marketing, trading or sale of the Buffered Securities.

NYSE Semiconductor Index. The NYSE Semiconductor Index is a rules-based, modified float-adjusted market capitalization-weighted index that measures the performance of the equity securities of the 30 largest U.S.-listed companies that are classified within the semiconductor industry. The NYSE Semiconductor Index is calculated, maintained and published by ICE Data Indices, LLC. Semiconductor companies are defined as those classified under the Semiconductor Industry in the ICE Data Equity Classification Schema. This includes companies that either manufacture materials that have electrical conductivity (semiconductors) to be used in electronic applications or utilize LED and OLED technology. This also includes companies that provide services or equipment associated with semiconductors such as packaging and testing.

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Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Principal at Risk Securities

Additional Terms of the Buffered Securities

Please read this information in conjunction with the terms on the front cover of this document.

Additional Terms:

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

Share underlying index:

NYSE Semiconductor Index

Share underlying index publisher:

ICE Data Indices, LLC, or any successor thereof

Postponement of

maturity date:

If the scheduled valuation date is not a trading day or if a market disruption event occurs on that day so that the valuation date as postponed falls less than two business days prior to the scheduled maturity date, the maturity date of the Buffered Securities will be postponed to the second business day following that valuation date as postponed.

Denominations:

$1,000 per Buffered Security and integral multiples thereof

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 maturity date is postponed due to postponement of the valuation date, the issuer shall give notice of such postponement and, once it has been determined, of the date to which the maturity date has been rescheduled (i) to each registered holder of the Buffered Securities 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 Buffered Securities 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 maturity date, the business day immediately preceding the scheduled maturity date and (ii) with respect to notice of the date to which the maturity date has been rescheduled, the business day immediately following the actual valuation date.

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 stated principal amount of the Buffered Securities, on or prior to 10:30 a.m. (New York City time) on the business day preceding the maturity date, and (ii) deliver the aggregate cash amount due with respect to the Buffered Securities to the trustee for delivery to the depositary, as holder of the Buffered Securities, on the maturity date.

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Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Principal at Risk Securities

Additional Information About the Buffered Securities

Additional Information:

Minimum ticketing size:

$1,000 / 1 Buffered Security

Tax considerations:

Although there is uncertainty regarding the U.S. federal income tax consequences of an investment in the Buffered Securities due to the lack of governing authority, in the opinion of our counsel, Davis Polk & Wardwell LLP, under current law, and based on current market conditions, it is reasonable to treat a Buffered Securityas a single financial contract that is an "open transaction" for U.S. federal income tax purposes. However, because our counsel's opinion is based in part on market conditions as of the date of this document, it is subject to confirmation on the pricing date.

Assuming this treatment of the Buffered Securities is respected and subject to the discussion in "United States Federal Taxation" in the accompanying product supplement for participation securities, the following U.S. federal income tax consequences should result based on current law:

■A U.S. Holder should not be required to recognize taxable income over the term of the Buffered Securities prior to settlement, other than pursuant to a sale or exchange.

■Upon sale, exchange or settlement of the Buffered Securities, a U.S. Holder should recognize gain or loss equal to the difference between the amount realized and the U.S. Holder's tax basis in the Buffered Securities. Subject to the discussion below concerning the potential application of the "constructive ownership" rule, such gain or loss should be long-term capital gain or loss if the investor has held the Buffered Securities for more than one year, and short-term capital gain or loss otherwise.

Because the Buffered Securities are linked to shares of an exchange-traded fund, although the matter is not clear, there is a risk that an investment in the Buffered Securities will be treated as a "constructive ownership transaction" under Section 1260 of the Internal Revenue Code of 1986, as amended (the "Code"). If this treatment applies, all or a portion of any long-term capital gain of the U.S. Holder in respect of the Buffered Securities could be recharacterized as ordinary income (in which case an interest charge will be imposed). Due to the lack of governing authority, our counsel is unable to opine as to whether or how Section 1260 of the Code applies to the Buffered Securities. U.S. investors should read the section entitled "United States Federal Taxation-Tax Consequences to U.S. Holders-Possible Application of Section 1260 of the Code" in the accompanying product supplement for participation securities for additional information and consult their tax advisers regarding the potential application of the "constructive ownership" rule.

We do not plan to request a ruling from the Internal Revenue Service (the "IRS") regarding the treatment of the Buffered Securities. An alternative characterization of the Buffered Securities could materially and adversely affect the tax consequences of ownership and disposition of the Buffered Securities, including the timing and character of income recognized. In addition, the U.S. Treasury Department and the IRS have requested comments on various issues regarding the U.S. federal income tax treatment of "prepaid forward contracts" and similar financial instruments and have indicated that such transactions may be the subject of future regulations or other guidance. Furthermore, members of Congress have proposed legislative changes to the tax treatment of derivative contracts. Any legislation, Treasury regulations or other guidance promulgated after consideration of these issues could materially and adversely affect the tax consequences of an investment in the Buffered Securities, possibly with retroactive effect.

As discussed in the accompanying product supplement for participation securities, Section 871(m) of the Code and Treasury regulations promulgated thereunder ("Section 871(m)") generally impose a 30% (or a lower applicable treaty rate) 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 (each, an "Underlying Security"). Subject to certain exceptions, Section 871(m) generally applies to securities that substantially replicate the economic performance of one or more Underlying Securities, as determined based on tests set forth in the applicable Treasury regulations (a "Specified Security"). However, pursuant to an IRS notice, Section 871(m) will not apply to securities issued before January 1, 2027 that do not have a delta of one with respect to any Underlying Security. Based on the terms of the Buffered Securities and current market conditions, we expect that the Buffered Securities will not have a delta of one with respect to any Underlying Security on the pricing date. However, we will provide an updated determination in the final pricing supplement. Assuming that the Buffered Securities do not have a delta of one with respect to any Underlying Security, our counsel is of the opinion that the Buffered Securities should not be Specified Securities and, therefore, should not be subject to Section 871(m).

Our determination is not binding on the IRS, and the IRS may disagree with this determination. Section 871(m) is complex and its application may depend on your particular circumstances, including whether you enter into other transactions with respect to an Underlying Security. If withholding is required, we

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Buffered Participation Securities Based on the Value of the iShares® Semiconductor ETF due August 4, 2027

Principal at Risk Securities

will not be required to pay any additional amounts with respect to the amounts so withheld. You should consult your tax adviser regarding the potential application of Section 871(m) to the Buffered Securities.

Both U.S. and non-U.S. investors considering an investment in the Buffered Securities should read the discussion under "Risk Factors" in this document and the discussion under "United States Federal Taxation" in the accompanying product supplement for participation securities and consult their tax advisers regarding all aspects of the U.S. federal income tax consequences of an investment in the Buffered Securities, including possible alternative treatments, the potential application of the constructive ownership rule, and any tax consequences arising under the laws of any state, local or non-U.S. taxing jurisdiction.

The discussion in the preceding paragraphs under "Tax considerations" and the discussion contained in the section entitled "United States Federal Taxation" in the accompanying product supplement for participation securities, insofar as they purport to describe provisions of U.S. federal income tax laws or legal conclusions with respect thereto, constitute the full opinion of Davis Polk & Wardwell LLP regarding the material U.S. federal tax consequences of an investment in the Buffered Securities.

Use of proceeds and hedging:

The proceeds from the sale of the Buffered Securities will be used by us for general corporate purposes. We will receive, in aggregate, $1,000 per Buffered Security issued, because, when we enter into hedging transactions in order to meet our obligations under the Buffered Securities, our hedging counterparty will reimburse the cost of the agent's commissions. The costs of the Buffered Securities borne by you and described on page 2 above comprise the agent's commissions and the cost of issuing, structuring and hedging the Buffered Securities.

On or prior to the pricing date, we will hedge our anticipated exposure in connection with the Buffered Securities, by entering into hedging transactions with our affiliates and/or third-party dealers. We expect our hedging counterparties to take positions in underlying shares, futures and options contracts on the underlying shares, and any component stocks of the share underlying index 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 potentially increase the price of the underlying shares on the pricing date, and, therefore, could increase the price at or above which the underlying shares must close on the valuation date so that investors do not suffer a loss on their initial investment in the Buffered Securities. In addition, through our affiliates, we are likely to modify our hedge position throughout the term of the Buffered Securities, including on the valuation date, by purchasing and selling the underlying shares, futures or options contracts on the underlying shares or component stocks of the share underlying index 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 Buffered Securities, and the hedging strategy may involve greater and more frequent dynamic adjustments to the hedge as the valuation date approaches. We cannot give any assurance that our hedging activities will not affect the value of the underlying shares, and, therefore, adversely affect the value of the Buffered Securities 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 for participation securities.

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 Buffered Securities, either directly or indirectly.

Supplemental information regarding plan of distribution; conflicts of interest:

Selected dealers, which may include our affiliates, and their financial advisors will collectively receive from the agent a fixed sales commission of $ for each Buffered Security they sell.

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 Buffered Securities. When MS & Co. prices this offering of Buffered Securities, it will determine the economic terms of the Buffered Securities such that for each Buffered Security the estimated value on the pricing date will be no lower than the minimum level described in "Investment Summary" on page 2.

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 securities 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 for participation securities.

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Where you can find more information:

Morgan Stanley and MSFL have filed a registration statement (including a prospectus, as supplemented by the product supplement for participation securities) 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 for participation securities and any other documents relating to this offering that Morgan Stanley and MSFL have filed with the SEC for more complete information about Morgan Stanley, MSFL and this offering. When you read the accompanying product supplement, please note that all references in such supplement to the prospectus dated November 16, 2023, or to any sections therein, should refer instead to the accompanying prospectus dated April 12, 2024 or to the corresponding sections of such prospectus, as applicable. You may get these documents without cost by visiting EDGAR on the SEC web site atwww.sec.gov. Alternatively, Morgan Stanley, MSFL, any underwriter or any dealer participating in the offering will arrange to send you the product supplement for participation securities and prospectus if you so request by calling toll-free 800-584-6837.

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

Product Supplement for Participation Securities dated November 16, 2023

Prospectus dated April 12, 2024

Terms used but not defined in this document are defined in the product supplement for participation securities or in the prospectus.

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