Primary Offering Prospectus (Form 424B2)

Preliminary Pricing Supplement No. 10,219

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

Dated September 2, 2025

Filed pursuant to Rule 424(b)(2)

Morgan Stanley Finance LLC

Structured Investments

Contingent Income Buffered Auto-Callable Securities due September 21, 2028

Based on the Performance of the iShares® Bitcoin Trust ETF

Fully and Unconditionally Guaranteed by Morgan Stanley

Principal at Risk Securities

￭The securities are unsecured obligations of Morgan Stanley Finance LLC ("MSFL") and are fully and unconditionally guaranteed by Morgan Stanley. The securities have the terms described in the accompanying product supplement and prospectus, as supplemented or modified by this document. The securities do not provide for the regular payment of interest.

￭Contingent coupon. The securities will pay a contingent coupon but only if the closing level of the underlier is greater than or equal to the coupon barrier level on the related observation date. However, if the closing level of the underlier is less than the coupon barrier level on any observation date, we will pay no interest with respect to the related interest period.

￭Automatic early redemption. The securities will be automatically redeemed if the closing level of the underlier is greater than or equal to the call threshold level on any redemption determination date for an early redemption payment equal to the stated principal amount plus the contingent coupon with respect to the related interest period. No further payments will be made on the securities once they have been automatically redeemed.

￭Payment at maturity. If the securities have not been automatically redeemed prior to maturity and the final level is greater than or equal to the buffer level, investors will receive (in addition to the contingent coupon with respect to the final observation date, if payable) the stated principal amount at maturity. If, however, the final level is less than the buffer level, investors will lose 1% for every 1% decline in the level of the underlier beyond the specified buffer amount. Under these circumstances, the payment at maturity will be less, and may be significantly less, than the stated principal amount of the securities, subject to the minimum payment at maturity.

￭The securities are for investors who are willing to risk their principal and accept the risk of receiving no coupons over the entire term of the securities in exchange for the buffer feature and the opportunity to earn interest at a potentially above-market rate. You will not participate in any appreciation of the underlier. Investors in the securities must be willing to accept the risk of losing a significant portion of their initial investment. The 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 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.

TERMS
Issuer:	Morgan Stanley Finance LLC
Guarantor:	Morgan Stanley
Stated principal amount:	$1,000 per security
Issue price:	$1,000 per security (see "Commissions and issue price" below)
Aggregate principal amount:	$
Underlier:	iShares® Bitcoin Trust ETF (the "underlying fund")
Strike date:	September 18, 2025
Pricing date:	September 18, 2025
Original issue date:	September 23, 2025
Final observation date:	September 18, 2028, subject to postponement for non-trading days and certain market disruption events
Maturity date:	September 21, 2028
Terms continued on the following page
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 $948.70 per security, or within $45.00 of that estimate. See "Estimated Value of the Securities" on page 4.
Commissions and issue price:	Price to public	Agent's commissions and fees(1)(2)	Proceeds to us(3)
Per security	$1,000	$	$
Total	$	$	$

(1)The securities will be sold only to investors purchasing the securities in fee-based advisory accounts.

(2)MS & Co. expects to sell all of the securities that it purchases from us to an unaffiliated dealer at a price of $ per security, for further sale to certain fee-based advisory accounts at the price to public of $1,000 per security. In addition, selected dealers and their financial advisors may receive a structuring fee of up to $6.25 for each security from the agent or its affiliates. MS & Co. will not receive a sales commission with respect to the securities. 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.

(3)See "Use of Proceeds and Hedging" in the accompanying product supplement.

The securities involve risks not associated with an investment in ordinary debt securities. See "Risk Factors" beginning on page 7.

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 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. Please also see "Additional Terms of the Securities" and "Additional Information About the Securities" at the end of this document.

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

Product Supplement for Principal at Risk Securities dated February 7, 2025 Prospectus dated April 12, 2024

Morgan Stanley Finance LLC

Contingent Income Buffered Auto-Callable Securities Principal at Risk Securities

Terms continued from the previous page

Automatic early redemption:

The securities are not subject to automatic early redemption until the first redemption determination date. If, on any redemption determination date, the closing level of the underlier is greater than or equal to the call threshold level, the securities will be automatically redeemed for the early redemption payment on the related early redemption date. No further payments will be made on the securities once they have been automatically redeemed.

The securities will not be redeemed on any early redemption date if the closing level of the underlier is less than the call threshold level on the related redemption determination date.

Early redemption payment:

The stated principal amount plus the contingent coupon with respect to the related interest period

Contingent coupon:

A contingent coupon at an annual rate of at least 13.50% will be paid on the securities on each coupon payment date but only if the closing level of the underlier is greater than or equal to the coupon barrier level on the related observation date. The actual contingent coupon rate will be determined on the pricing date.

If, on any observation date, the closing level of the underlier is less than the coupon barrier level, we will pay no coupon with respect to the applicable interest period.

Buffer level:

$ , which is 90% of the initial level

Coupon barrier level:

$ , which is 70% of the initial level

Call threshold level:

$ , which is 100% of the initial level

Payment at maturity per security:

If the securities have not been automatically redeemed prior to maturity, investors will receive (in addition to the contingent coupon with respect to the final observation date, if payable) a payment at maturity determined as follows:

• If the final level is greater than or equal to the buffer level:

stated principal amount

• If the final level is less than the buffer level:

stated principal amount × (performance factor + buffer amount)

Under these circumstances, the payment at maturity will be less, and may be significantly less, than the stated principal amount, subject to the minimum payment at maturity.

Buffer amount:

10%

Minimum payment at maturity:

10% of the stated principal amount

Redemption determination dates:

December 18, 2025, March 18, 2026, June 18, 2026, September 18, 2026, December 18, 2026, March 18, 2027, June 21, 2027, September 20, 2027, December 20, 2027, March 20, 2028 and June 20, 2028, subject to postponement for non-trading days and certain market disruption events

First redemption determination date:

December 18, 2025. Under no circumstances will the securities be redeemed prior to the first redemption determination date.

Early redemption dates:

December 23, 2025, March 23, 2026, June 24, 2026, September 23, 2026, December 23, 2026, March 23, 2027, June 24, 2027, September 23, 2027, December 23, 2027, March 23, 2028 and June 23, 2028

Observation dates:

As set forth under "Observation Dates and Coupon Payment Dates" below, subject to postponement for non-trading days and certain market disruption events

Coupon payment dates:

As set forth under "Observation Dates and Coupon Payment Dates" below. If any coupon payment date is not a business day, the coupon payment with respect to such date, if any, will be made on the next succeeding business day and no adjustment will be made to any coupon payment made on that succeeding business day. The coupon payment, if any, with respect to the final observation date shall be made on the maturity date.

Initial level:

$ , which is the closing level of the underlier on the strike date

Final level:

The closing level of the underlier on the final observation date

Performance factor:

final level / initial level

Closing level:

"Closing level" and "adjustment factor" have the meanings set forth under "General Terms of

the Securities-Some Definitions" in the accompanying product supplement.

CUSIP:

61779DJW3

ISIN:

US61779DJW39

Listing:

The securities will not be listed on any securities exchange.

Observation Dates and Coupon Payment Dates

Observation Dates	Coupon Payment Dates
December 18, 2025	December 23, 2025
March 18, 2026	March 23, 2026
June 18, 2026	June 24, 2026
September 18, 2026	September 23, 2026
December 18, 2026	December 23, 2026

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March 18, 2027	March 23, 2027
June 21, 2027	June 24, 2027
September 20, 2027	September 23, 2027
December 20, 2027	December 23, 2027
March 20, 2028	March 23, 2028
June 20, 2028	June 23, 2028
September 18, 2028 (final observation date)	September 21, 2028 (maturity date)

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Estimated Value of the Securities

The original issue price of each security is $1,000. This price includes costs associated with issuing, selling, structuring and hedging the securities, which are borne by you, and, consequently, the estimated value of the securities on the pricing date will be less than $1,000. Our estimate of the value of the securities as determined on the pricing date will be within the range specified on the cover hereof and will be set forth on the cover of the final pricing supplement.

What goes into the estimated value on the pricing date?

In valuing the securities on the pricing date, we take into account that the securities comprise both a debt component and a performance-based component linked to the underlier. The estimated value of the securities 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 securities?

In determining the economic terms of the securities, 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 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 securities?

The price at which MS & Co. purchases the securities 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 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 securities are not fully deducted upon issuance, to the extent that MS & Co. may buy or sell the securities in the secondary market during the amortization period specified herein, 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 securities, and, if it once chooses to make a market, may cease doing so at any time.

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Hypothetical Examples

The following hypothetical examples illustrate how to determine whether the securities will be automatically redeemed with respect to a redemption determination date, whether a contingent coupon is payable with respect to an observation date and how to calculate the payment at maturity if the securities have not been automatically redeemed prior to maturity. The following examples are for illustrative purposes only. Whether the securities are automatically redeemed prior to maturity will be determined by reference to the closing level of the underlier on each redemption determination date. Whether you receive a contingent coupon will be determined by reference to the closing level of the underlier on each observation date. The payment at maturity will be determined by reference to the closing level of the underlier on the final observation date. The actual initial level, call threshold level, coupon barrier level and buffer level will be determined on the strike date. All payments on the securities are subject to our credit risk. The numbers in the hypothetical examples below may have been rounded for ease of analysis. The below examples are based on the following terms:

Stated principal amount:	$1,000 per security
Hypothetical initial level:	100.00*
Hypothetical call threshold level:	$100.00, which is 100% of the hypothetical initial level
Hypothetical coupon barrier level:	$70.00, which is 70% of the hypothetical initial level
Hypothetical buffer level:	$90.00, which is 90% of the hypothetical initial level
Buffer amount:	10%
Minimum payment at maturity:	10% of the stated principal amount
Hypothetical contingent coupon:	13.50% per annum (corresponding to approximately $33.75 per interest period per security). The actual contingent coupon will be an amount determined by the calculation agent based on the number of days in the applicable payment period, calculated on a 30/360 day-count basis. The hypothetical contingent coupon of $33.75 is used in these examples for ease of analysis.

*The hypothetical initial level of 100.00 for the underlier has been chosen for illustrative purposes only and does not represent the actual initial level of the underlier. Please see "Historical Information" below for historical data regarding the actual closing levels of the underlier.

How to determine whether the securities will be automatically redeemed with respect to a redemption determination date:

	Closing Level of the Underlier	Early Redemption Payment
Hypothetical Redemption Determination Date #1	$65.00 (less than the call threshold level)	N/A
Hypothetical Redemption Determination Date #2	$150.00 (greater than or equal to the call threshold level)	$1,000 + $33.75 (the stated principal amount + the contingent coupon with respect to the related interest period) For more information, please see "How to determine whether a contingent coupon is payable with respect to an observation date (if the securities have not been previously automatically redeemed)" below.

On hypothetical redemption determination date #1, because the closing level of the underlier is less than the call threshold level, the securities are not automatically redeemed on the related early redemption date.

On hypothetical redemption determination date #2, because the closing level of the underlier is greater than or equal to the call threshold level, the securities are automatically redeemed on the related early redemption date for an early redemption payment equal to the stated principal amount plus the contingent coupon with respect to the related interest period. No further payments are made on the securities once they have been automatically redeemed.

If the closing level of the underlier is less than the call threshold level on each redemption determination date, the securities will not be automatically redeemed prior to maturity.

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Contingent Income Buffered Auto-Callable Securities Principal at Risk Securities

How to determine whether a contingent coupon is payable with respect to an observation date (if the securities have not been previously automatically redeemed):

	Closing Level of the Underlier	Payment per Security
Hypothetical Observation Date #1	$80.00 (greater than or equal to the coupon barrier level)	$33.75
Hypothetical Observation Date #2	$50.00 (less than the coupon barrier level)	$0
Hypothetical Observation Date #3	$130.00 (greater than or equal to the coupon barrier level)	$1,000 + $33.75 (the stated principal amount + the contingent coupon with respect to the related interest period) For more information, please see "How to determine whether the securities will be automatically redeemed with respect to a redemption determination date" above.

On hypothetical observation date #1, because the closing level of the underlier is greater than or equal to the coupon barrier level, the contingent coupon is paid on the related coupon payment date.

On hypothetical observation date #2, because the closing level of the underlier is less than the coupon barrier level, no contingent coupon is paid on the related coupon payment date.

On hypothetical observation date #3, the closing level of the underlier is greater than or equal to the coupon barrier level. Because the closing level of the underlier is also greater than or equal to the call threshold level, the securities are automatically redeemed for an early redemption payment equal to the stated principal amount plus the contingent coupon with respect to the related interest period. No further payments are made on the securities once they have been automatically redeemed.

If the closing level of the underlier is less than the coupon barrier level on each observation date, you will not receive any contingent coupons for the entire term of the securities.

How to calculate the payment at maturity (if the securities have not been automatically redeemed):

The hypothetical examples below illustrate how to calculate the payment at maturity if the securities have not been automatically redeemed prior to maturity.

	Final Level	Payment at Maturity per Security
Example #1	$140.00 (greater than or equal to the buffer level)	$1,000 + $33.75 (the stated principal amount + the contingent coupon with respect to the final observation date) For more information, please see "How to determine whether a contingent coupon is payable with respect to an observation date (if the securities have not been previously automatically redeemed)" above.
Example #2	$30.00 (less than the buffer level)	$1,000 × (performance factor + buffer amount) = $1,000 × [($30.00 / $100.00) + 10%] = $400.00

In example #1, the final level is greater than or equal to the buffer level. Therefore, investors receive at maturity the stated principal amount. Because the final level is also greater than or equal to the coupon barrier level, investors receive the contingent coupon with respect to the final observation date. Investors do not participate in any appreciation of the underlier.

In example #2, the final level is less than the buffer level. Therefore, investors receive at maturity a payment that reflects a loss of 1% of principal for each 1% decline in the level of the underlier beyond the buffer amount. Moreover, because the final level is also less than the coupon barrier level, investors do not receive a contingent coupon with respect to the final observation date.

If the securities have not been automatically redeemed prior to maturity and the final level is less than the buffer level, you will be exposed to the negative performance of the underlier beyond the buffer amount at maturity, and your payment at maturity will be less, and may be significantly less, than the stated principal amount.

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Contingent Income Buffered Auto-Callable Securities Principal at Risk Securities

Risk Factors

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

Risks Relating to an Investment in the Securities

￭The securities provide for only the minimum payment at maturity. The terms of the securities differ from those of ordinary debt securities in that they provide for only the minimum payment at maturity. If the securities have not been automatically redeemed prior to maturity and the final level is less than the buffer level, the payout at maturity will be an amount in cash that is less than the stated principal amount of each security, and you will lose an amount proportionate to the full decline in the level of the underlier over the term of the securities beyond the buffer amount. You could lose a significant portion of your initial investment in the securities.

￭The securities do not provide for the regular payment of interest. The terms of the securities differ from those of ordinary debt securities in that they do not provide for the regular payment of interest. Instead, the securities will pay a contingent coupon on a coupon payment date but only if the closing level of the underlier is greater than or equal to the coupon barrier level on the related observation date. However, if the closing level of the underlier is less than the coupon barrier level on any observation date, we will pay no coupon with respect to the applicable interest period. It is possible that the closing level of the underlier will remain below the coupon barrier level for extended periods of time or even throughout the entire term of the securities so that you will receive few or no contingent coupons. If you do not earn sufficient contingent coupons over the term of the securities, the overall return on the securities may be less than the amount that would be paid on a conventional debt security of ours of comparable maturity.

￭Payment of the contingent coupon is based on the closing level of the underlier on only the related observation date at the end of the related interest period. Whether the contingent coupon will be paid on any coupon payment date will be determined at the end of the related interest period based on the closing level of the underlier on the related observation date. As a result, you will not know whether you will receive the contingent coupon on a coupon payment date until near the end of the relevant interest period. Moreover, because the contingent coupon is based solely on the closing level of the underlier on the observation dates, if the closing level of the underlier on any observation date is less than the coupon barrier level, you will receive no coupon with respect to the related interest period, even if the closing level of the underlier was greater than or equal to the coupon barrier level on other days during that interest period.

￭Investors will not participate in any appreciation in the value of the underlier. Investors will not participate in any appreciation in the value of the underlier from the strike date to the final observation date, and the return on the securities will be limited to the contingent coupons that are paid with respect to the observation dates on which the closing level of the underlier is greater than or equal to the coupon barrier level. It is possible that the closing level of the underlier will remain below the coupon barrier level for extended periods of time or even throughout the entire term of the securities so that you will receive few or no contingent coupons.

￭The securities are subject to early redemption risk. The term of your investment in the securities may be shortened due to the automatic early redemption feature of the securities. If the securities are automatically redeemed prior to maturity, you will receive no further payments on the securities, may be forced to invest in a lower interest rate environment and may not be able to reinvest at comparable terms or returns. However, under no circumstances will the securities be redeemed prior to the first redemption determination date.

￭The market price of the securities may be influenced by many unpredictable factors. Several factors, many of which are beyond our control, will influence the value of the securities in the secondary market and the price at which MS & Co. may be willing to purchase or sell the securities in the secondary market. We expect that generally the value of the underlier at any time will affect the value of the securities more than any other single factor. Other factors that may influence the value of the securities include:

othe volatility (frequency and magnitude of changes in value) of the underlier;

ointerest and yield rates in the market;

ogeopolitical conditions and economic, financial, political, regulatory or judicial events that affect the underlier or markets generally;

othe availability of comparable instruments;

othe occurrence of certain events affecting the underlier that may or may not require an adjustment to the adjustment factor;

othe time remaining until the securities mature; and

oany actual or anticipated changes in our credit ratings or credit spreads.

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Some or all of these factors will influence the price that you will receive if you sell your securities prior to maturity. Generally, the longer the time remaining to maturity, the more the market price of the securities will be affected by the other factors described above. For example, you may have to sell your securities at a substantial discount from the stated principal amount if, at the time of sale, the closing level of the underlier is at, below or not sufficiently above the buffer level and/or coupon barrier level, or if market interest rates rise.

You can review the historical closing levels of the underlier in the section of this document called "Historical Information." You cannot predict the future performance of the underlier based on its historical performance. The value of the underlier may be, and has recently been, volatile, and we can give you no assurance that the volatility will lessen. There can be no assurance that the closing level of the underlier will be greater than or equal to the coupon barrier level on any observation date so that you will receive a contingent coupon with respect to the applicable interest period, or that the final level will be greater than or equal to the buffer level so that you do not suffer a loss on your initial investment in the securities.

￭The 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 securities. You are dependent on our ability to pay all amounts due on the securities, and, therefore, you are subject to our credit risk. The securities are not guaranteed by any other entity. If we default on our obligations under the 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 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 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 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 securities in the original issue price reduce the economic terms of the securities, cause the estimated value of the 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 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 securities in the original issue price and the lower rate we are willing to pay as issuer make the economic terms of the securities less favorable to you than they otherwise would be.

However, because the costs associated with issuing, selling, structuring and hedging the securities are not fully deducted upon issuance, to the extent that MS & Co. may buy or sell the securities in the secondary market during the amortization period specified herein, 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 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 securities than those generated by others, including other dealers in the market, if they attempted to value the 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 securities in the secondary market (if any exists) at any time. The value of your 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 securities may be influenced by many unpredictable factors" above.

￭The securities will not be listed on any securities exchange and secondary trading may be limited. The securities will not be listed on any securities exchange. Therefore, there may be little or no secondary market for the securities. MS & Co. may, but is

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not obligated to, make a market in the 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 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 securities. Even if there is a secondary market, it may not provide enough liquidity to allow you to trade or sell the securities easily. Since other broker-dealers may not participate significantly in the secondary market for the securities, the price at which you may be able to trade your 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 securities, it is likely that there would be no secondary market for the securities. Accordingly, you should be willing to hold your securities to maturity.

￭Investing in the securities is not equivalent to investing in the underlier. Investing in the securities is not equivalent to investing in the underlier. As an investor in the securities, you will not have any voting rights or any other rights with respect to the underlying fund or bitcoin, which is the underlying fund's underlying asset. As a result, your return will not reflect the return you would realize if you actually owned and held the underlying fund or the underlying asset for a period similar to the term of your investment, because you will not receive any dividend payments, distributions or any other payments made on such shares or asset, as applicable.

￭The U.S. federal income tax consequences of an investment in the securities are uncertain. There is no direct legal authority regarding the proper U.S. federal income tax treatment of the securities, and significant aspects of the tax treatment of the securities are uncertain. Moreover, non-U.S. investors should note that persons having withholding responsibility in respect of the securities are, absent an exception, expected to withhold on any coupon paid to a non-U.S. investor, generally at a rate of 30%. We will not pay any additional amounts in respect of such withholding. You should review carefully the section entitled "United States Federal Income Tax Considerations" herein, in combination with the section entitled "United States Federal Income Tax Considerations" in the accompanying product 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(s)

￭Because your return on the securities will depend upon the performance of the underlier(s), the securities are subject to the following risk(s), as discussed in more detail in the accompanying product supplement.

oThe anti-dilution adjustments the calculation agent is required to make do not cover every event that could affect an underlying fund.

￭The securities are subject to risks associated with bitcoin and digital assets. The investment objective of the iShares® Bitcoin Trust ETF is to reflect generally the performance of the price of bitcoin, less the iShares® Bitcoin Trust ETF's expenses. Bitcoin is a digital asset, and use of bitcoin in the retail and commercial marketplace is relatively limited. Bitcoin generally operates without central authority or banks and is not backed by any government or organized governing body. Digital assets such as bitcoin represent new, novel and rapidly evolving products, and their value is influenced by a wide variety of factors that are uncertain and difficult to evaluate. The trading prices of many digital assets, including bitcoin, have experienced extreme volatility in recent periods and may continue to do so. Digital asset markets in the United States exist in a state of regulatory uncertainty and the exchanges on which bitcoin trades globally, including in the United States, are relatively new and, in most cases, largely unregulated. Legislative or regulatory developments could significantly affect the value of bitcoin, as could competition from other digital assets. Political or economic crises may motivate large-scale sales of bitcoin, resulting in a reduction in the price of bitcoin. The value of bitcoin could be adversely affected by the actions of bitcoin miners and changes in the block rewards and transaction fees miners earn. Bitcoin is susceptible to theft, loss and fraud. The Bitcoin Network, bitcoin custodians and trading platforms are subject to risks relating to operational problems, technical glitches, internet disruptions, shutdowns, hackers and malware, all of which may also affect the price of bitcoin. Over the past several years, some digital asset platforms have been closed, been subject to criminal and civil litigation and have entered into bankruptcy proceedings due to fraud and manipulative activity, business failure and/or security breaches. Negative perception, a lack of stability and standardized regulation in the digital asset markets and/or the closure or temporary shutdown of digital asset trading platforms due to fraud, business failure, security breaches or government mandated regulation, and associated losses by customers, may reduce confidence in digital asset networks and result in greater volatility in the prices of digital assets, including bitcoin. These and other factors could have an adverse effect on the price of bitcoin and, therefore, the value of the securities.

￭Investments linked to bitcoin are subject to specific risks relating to security threats. Security breaches, computer malware and computer hacking attacks have been a prevalent concern in relation to digital assets, including bitcoin. The sponsor of the Underlier has stated that it believes that the bitcoins held in the Underlier's account at its bitcoin custodian or trading balance held with its prime execution agent will be an appealing target to hackers or malware distributors seeking to steal the Underlier's bitcoins and will only become more appealing as the amount or value of the Underlier's assets grow. To the extent that the Underlier is unable to identify and mitigate or stop new security threats or otherwise adapt to technological changes in the digital asset industry, the Underlier's bitcoins may be subject to theft, loss or other attack.

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￭Investments linked to bitcoin are subject to specific risks relating to fraud and manipulation. Many digital asset platforms, both in the United States and abroad, are unlicensed, not subject to, or not in compliance with, regulation in relevant jurisdictions, or operate without extensive supervision by governmental authorities, and therefore may be more susceptible to fraudulent or manipulative acts and practices. In particular, those located outside the United States may be subject to significantly less stringent regulatory and compliance requirements in their local jurisdictions and may take the position that they are not subject to laws and regulations that would apply to a regulated financial market in the United States, or may, as a practical matter, be beyond the ambit of U.S. regulators. Furthermore, many bitcoin trading venues lack certain safeguards put in place by exchanges for more traditional assets to enhance the stability of trading on the exchanges, such as circuit breakers. Tools to detect and deter fraudulent or manipulative trading activities such as market manipulation, front-running of trades, and wash-trading may not be available to or employed by digital asset platforms, or may not exist at all. Sources of fraud and manipulation in the bitcoin market generally include, among others (1) wash trading; (2) persons with a dominant position in bitcoin manipulating bitcoin pricing; (3) hacking of the bitcoin network and trading platforms; (4) malicious control of the bitcoin network; (5) trading based on material, non-public information (for example, plans of market participants to significantly increase or decrease their holdings in bitcoin, new sources of demand for bitcoin) or based on the dissemination of false and misleading information; (6) manipulative activity involving purported "stablecoins," and (7) fraud and manipulation at bitcoin trading platforms. The effect of potential market manipulation, front-running, wash-trading, and other fraudulent or manipulative trading practices may inflate the volumes actually present in crypto market and/or cause distortions in price, which could adversely impact the Underlier's creation and redemption arbitrage mechanism and affect the value of the Underlier and, consequently, the securities.

￭The underlier has very limited historical performance. The underlying fund began trading on January 11, 2024 and therefore has very limited historical performance. Past performance should not be considered indicative of future performance.

￭The performance and market price of an underlying fund, particularly during periods of market volatility, may not correlate with the performance of its underlying asset or the net asset value per share of such underlying fund. An underlying fund does not fully replicate the performance of its underlying asset due to the fees and expenses charged by such underlying fund or by restrictions on access to its underlying asset due to other circumstances. An underlying fund does not generate any income, and as an underlying fund regularly sells its underlying asset to pay for ongoing expenses, the amount of the underlying asset represented by each share of such underlying fund gradually declines over time. An underlying fund sells its underlying asset to pay expenses on an ongoing basis irrespective of whether the trading price of shares of such underlying fund rises or falls in response to changes in the price of its underlying asset. The sale by an underlying fund of underlying asset to pay expenses at a time of relatively low prices for such underlying asset could adversely affect the value of the securities. Additionally, there is a risk that part or all of the holdings of an underlying fund in its underlying asset could be lost, damaged or stolen due to war, terrorism, theft, natural disaster or otherwise. Finally, because the shares of an underlying fund are traded on an exchange and are subject to market supply and investor demand, the market price of one share of such underlying fund may differ from the net asset value per share of such underlying fund.

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

For all of the foregoing reasons, the performance of an underlying fund may not correlate with the performance of its underlying asset or the net asset value per share of such underlying fund. Any of these events could materially and adversely affect the closing level of an underlying fund and, therefore, the value of the securities. Additionally, if market volatility or these events were to occur on the observation 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 on the securities. If the calculation agent determines that no market disruption event has taken place, the payment at maturity would be based on the published closing price per share of the underlying fund on the observation date, even if the underlying fund is underperforming its underlying asset and/or trading below the net asset value per share of the underlying fund.

Risks Relating to Conflicts of Interest

In engaging in certain activities described below and as discussed in more detail in the accompanying product supplement, our affiliates may take actions that may adversely affect the value of and your return on the securities, and in so doing they will have no obligation to consider your interests as an investor in the securities.

￭The calculation agent, which is a subsidiary of Morgan Stanley and an affiliate of MSFL, will make determinations with respect to the securities. As calculation agent, MS & Co. will make any determinations necessary to calculate any payment(s) on the securities. Moreover, certain determinations made by MS & Co., in its capacity as calculation agent, may require it to exercise

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discretion and make subjective judgments, which may adversely affect your return on the securities. In addition, MS & Co. has determined the estimated value of the securities on the pricing date.

￭Hedging and trading activity by our affiliates could potentially adversely affect the value of the securities.

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Historical Information

iShares® Bitcoin Trust ETF Overview

Bloomberg Ticker Symbol: IBIT UQ

The iShares® Bitcoin Trust ETF ("the Trust") is a Delaware statutory trust sponsored by iShares® Delaware Trust Sponsor LLC that seeks to reflect generally the performance of the price of bitcoin, which is its underlying asset, less the Trust's expenses and liabilities. The assets of the Trust consist primarily of bitcoin held by a custodian on behalf of the Trust. Information provided to or filed with the Securities and Exchange Commission by the Trust pursuant to the Securities Act of 1933 can be located by reference to Securities and Exchange Commission file number 001- 41914 through the Securities and Exchange Commission's website at www.sec.gov. In addition, information regarding the underlier may be obtained from other publicly available sources including, but not limited to, press releases, newspaper articles and other publicly disseminated documents. Neither we nor the agent makes any representation that such publicly available documents or any other publicly available information regarding the underlier is accurate or complete.

We have derived all information regarding the Trust, including its composition and method of calculation, from publicly available information, without independent verification. This information reflects the policies of, and is subject to change by, iShares® Delaware Trust Sponsor LLC, a indirect subsidiary of BlackRock, Inc. BlackRock Fund Advisors is the trustee of the Trust; Coinbase Custody Trust Company, LLC is the custodian of the Trust's bitcoin holdings; Coinbase, Inc., an affiliate of Coinbase Custody Trust Company, LLC, is the prime exchange agent; the Bank of New York Mellon is the custodian for the Trust's cash holdings and the administrator of the trust; and Wilmington Trust Company, a Delaware trust company, serves as the trustee of the Trust.

The Trust issues (in blocks of 40,000 shares, each of which is referred to as a "basket") shares representing fractional undivided beneficial interests in its net assets. The assets of the Trust consist primarily of bitcoin held by a custodian on behalf of the Trust. The shares of the Trust are intended to constitute a simple and cost-effective means of making an investment similar to an investment in bitcoin rather than by acquiring, holding and trading bitcoin directly on a peer-to-peer or other basis or via a digital asset platform. The trustee of the Trust sells bitcoin held by the Trust to pay the Trust's expenses on an as-needed basis irrespective of then-current bitcoin prices.

The Trust is not actively managed and will not take any actions to take advantage, or mitigate the impacts, of volatility in the price of bitcoin. The Trust pays the sponsor's fee, which accrues daily at an annualized rate equal to 0.25% of the net asset value of the Trust, at least quarterly in arrears. The trustee of the Trust will, when directed by the sponsor of the Trust, and, in the absence of such direction, may in its discretion, sell bitcoin in such quantity and at such times as may be necessary to permit payment of the Trust sponsor's fee and Trust expenses or liabilities not assumed by the sponsor. As a result of the recurring sales of bitcoin necessary to pay the Trust sponsor's fee and Trust expenses or liabilities not assumed by the Trust sponsor, the net asset value of the Trust will decrease over the life of the trust. New purchases of bitcoin utilizing cash proceeds from new shares issued by the Trust do not reverse this trend.

The closing level of the underlier on August 29, 2025 was $61.44. The following graph sets forth the daily closing levels of the underlier for the period noted below. We obtained the historical information presented in this document from Bloomberg Financial Markets, without independent verification. The underlier has at times experienced periods of high volatility. You should not take the historical closing 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 at any time.

Underlier Daily Closing Levels January 11, 2024* to August 29, 2025

*The underlying fund began trading on January 11, 2024 and therefore has limited historical performance.

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This document relates only to the securities referenced hereby and does not relate to the underlier. We have derived all disclosures contained in this document regarding the underlier from the publicly available documents described above. In connection with this offering of securities, neither we nor the agent has participated in the preparation of such documents or made any due diligence inquiry with respect to the underlier. Neither we nor the agent makes any representation that such publicly available documents or any other publicly available information regarding the underlier 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 above) that would affect the trading price of the underlier (and therefore the closing level of the underlier on the strike date) have been publicly disclosed. Subsequent disclosure of any such events or the disclosure of or failure to disclose material future events concerning the underlier could affect the value received with respect to the securities and therefore the value of the securities.

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

We and/or our affiliates may presently or from time to time engage in business with the Trust. In the course of such business, we and/or our affiliates may acquire non-public information with respect to the underlier, 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 underlier. The statements in the preceding two sentences are not intended to affect the rights of investors in the securities under the securities laws. You should undertake an independent investigation of the underlier as in your judgment is appropriate to make an informed decision with respect to an investment linked to the underlier.

Bitcoin. Bitcoin is a digital asset, the ownership and behavior of which are determined by participants in an online, peer-to-peer network that connects computers that run publicly accessible, or "open source," software that follows the rules and procedures governing the Bitcoin Network, commonly referred to as the Bitcoin Protocol. The value of bitcoin, like the value of other digital assets, is not backed by any government, corporation or other identified body. Ownership and the ability to transfer or take other actions with respect to bitcoin are protected through public-key cryptography. The supply of bitcoin is constrained or formulated by its protocol instead of being explicitly delegated to an identified body (e.g., a central bank) to control. Units of bitcoin, called tokens, are treated as fungible. Bitcoin and certain other types of digital assets are often referred to as digital currencies or cryptocurrencies. No single entity owns or operates the Bitcoin Network, the infrastructure of which is collectively maintained by (1) a decentralized group of participants who run computer software that results in the recording and validation of transactions (commonly referred to as "miners"), (2) developers who propose improvements to the Bitcoin Protocol and the software that enforces the protocol and (3) users who choose what bitcoin software to run.

Bitcoin was released in 2009 and, as a result, there is little data on its long-term investment potential. Bitcoin is not backed by a government-issued legal tender or any other currency or asset. Bitcoin is "stored" or reflected on a digital transaction ledger commonly known as a "blockchain." A blockchain is a type of shared and continually reconciled database, stored in a decentralized manner on the computers of certain users of the digital asset. Bitcoin is created by "mining." Mining involves miners using a sophisticated computer program to repeatedly solve very complex mathematical problems on specialized computer hardware. Miners can range from bitcoin enthusiasts to professional mining operations that design and build dedicated machines and data centers.

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Additional Terms of the Securities

Please read this information in conjunction with the terms on the 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.
Denominations:	$1,000 per security and integral multiples thereof
Day-count convention:	Interest will be computed on the basis of a 360-day year of twelve 30-day months.
Interest period:	The period from and including the original issue date (in the case of the first interest period) or the previous scheduled coupon payment date, as applicable, to but excluding the following scheduled coupon payment date, with no adjustment for any postponement thereof.
Amortization period:	The 6-month period following the issue date
Trustee:	The Bank of New York Mellon
Calculation agent:	Morgan Stanley & Co. LLC ("MS & Co.")

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Additional Information About the Securities

Additional Information:
Minimum ticketing size:	$1,000 / 1 security
United States federal income tax considerations:	You should review carefully the section in the accompanying product supplement entitled "United States Federal Income Tax Considerations." 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. Generally, this discussion assumes that you purchased the securities 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. You should consult your tax adviser regarding the effect any such circumstances may have on the U.S. federal income tax consequences of your ownership of a security. In the opinion of our counsel, which is based on current market conditions, it is reasonable to treat the securities for U.S. federal income tax purposes as prepaid financial contracts with associated coupons, and any coupons as ordinary income, as described in the section entitled "United States Federal Income Tax Considerations-Tax Consequences to U.S. Holders-Securities Treated as Prepaid Financial Contracts with Associated Coupons" in the accompanying product supplement. There is uncertainty regarding this treatment, and the IRS or a court might not agree with it. Moreover, because this treatment of the securities and our counsel's opinion are based on market conditions as of the date of this preliminary pricing supplement, each is subject to confirmation on the pricing date. A different tax treatment could be adverse to you. We do not plan to request a ruling from the IRS regarding the treatment of the securities. An alternative characterization of the securities could materially and adversely affect the tax consequences of ownership and disposition of the securities, including the timing and character of income recognized. In particular, there is a risk that the securities could be characterized as debt instruments for U.S. federal income tax purposes, in which case the tax consequences of an investment in the securities could be different from those described herein and possibly adverse to certain investors. 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 securities, possibly with retroactive effect. Non-U.S. Holders. The U.S. federal income tax treatment of the coupons is unclear. To the extent that we have withholding responsibility in respect of the securities, we would expect generally to treat the coupons paid to Non-U.S. Holders (as defined in the accompanying product supplement) as subject to U.S. withholding tax. Moreover, you should expect that, if the applicable withholding agent determines that withholding tax should apply, it will be at a rate of 30% (or lower treaty rate). In order to claim an exemption from, or a reduction in, the 30% withholding under an applicable treaty, you may need to comply with certification requirements to establish that you are not a U.S. person and are eligible for such an exemption or reduction under an applicable tax treaty. You should consult your tax adviser regarding the tax treatment of the coupons. As discussed under "United States Federal Income Tax Considerations-Tax Consequences to Non-U.S. Holders-Dividend Equivalents under Section 871(m) of the Code" in the accompanying product 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 IRS notice, exempt financial instruments issued prior to January 1, 2027 that do not have a "delta" of one. Based on certain determinations made by us, we expect that Section 871(m) will not apply to the securities with regard to Non-U.S. Holders. Our determination is not binding on the IRS, and the IRS may disagree with this determination. If necessary, further information regarding the potential application of Section 871(m) will be provided in the final pricing supplement for the securities. 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, including possible alternative treatments, as well as tax consequences arising under the laws of any state, local or non-U.S. taxing jurisdiction.

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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 securities, either directly or indirectly.
Supplemental information regarding plan of distribution; conflicts of interest:	MS & Co. expects to sell all of the securities that it purchases from us to an unaffiliated dealer at a price of $ per security, for further sale to certain fee-based advisory accounts at the price to public of $1,000 per security. In addition, selected dealers and their financial advisors may receive a structuring fee of up to $6.25 for each security from the agent or its affiliates. MS & Co. will not receive a sales commission with respect to the securities. 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 securities. 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.
Where you can find more information:	Morgan Stanley and MSFL have filed a registration statement (including a prospectus, as supplemented by the product supplement) with the Securities and Exchange Commission (the "SEC") for the offering to which this communication relates. You should read the prospectus in that registration statement, the product supplement and any other documents relating to this offering that MSFL and Morgan Stanley have filed with the SEC for more complete information about Morgan Stanley and this offering. You may get these documents without cost by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, MSFL, Morgan Stanley, any underwriter or any dealer participating in the offering will arrange to send you the prospectus and the product supplement if you so request by calling toll-free 1-(800)-584-6837. Terms used but not defined in this document are defined in the product supplement or in the prospectus. Each of the product supplement and the prospectus can be accessed via the hyperlinks set forth on the cover of this document.

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