Primary Offering Prospectus (Form 424B2)

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

Terms of the Securities

PS-2

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

PS-3

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

PS-4

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

PS-5

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

The terms and risks of the Securities are contained in this pricing supplement and in the following related product supplement, prospectus supplement and prospectus. Information included in this pricing supplement supersedes information in the product supplement, prospectus supplement and prospectus to the extent that it is different from that information. These documents can be accessed at the following links:

•Product Supplement No. WF-1 dated December 8, 2025:

https://www.sec.gov/Archives/edgar/data/70858/000119312525311329/d51848d424b2.htm

•Series A MTN prospectus supplement dated December 8, 2025 and prospectus dated December 8, 2025: https://www.sec.gov/Archives/edgar/data/70858/000119312525310920/d51586d424b3.htm

These documents have been filed as part of a registration statement with the SEC, which may, without cost, be accessed on the SEC website at www.sec.gov or obtained from BofAS by calling 1-800-294-1322. Before you invest, you should read this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus for information about us, BAC and this offering. Any prior or contemporaneous oral statements and any other written materials you may have received are superseded by this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus. Certain terms used but not defined in this pricing supplement have the meanings set forth in the accompanying product supplement or prospectus supplement. Unless otherwise indicated or unless the context requires otherwise, all references in this document to "we," "us," "our," or similar references are to BofA Finance, and not to BAC.

The Securities are our senior debt securities. Any payments on the Securities are fully and unconditionally guaranteed by BAC. The Securities and the related guarantee are not insured by the Federal Deposit Insurance Corporation or secured by collateral. The Securities will rank equally in right of payment with all of our other unsecured and unsubordinated obligations, except obligations that are subject to any priorities or preferences by law. The related guarantee will rank equally in right of payment with all of BAC's other unsecured and unsubordinated obligations, except obligations that are subject to any priorities or preferences by law, and senior to its subordinated obligations. Any payments due on the Securities, including any repayment of the principal amount, will be subject to the credit risk of BofA Finance, as issuer, and BAC, as guarantor.

PS-6

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

Investor Considerations

The Securities are not appropriate for all investors. The Securities may be an appropriate investment for investors who:

¡seek a fixed return equal to the Call Premium if the securities are automatically called on the Call Date;

¡if the Securities are not automatically called, seek 125% leveraged exposure to the upside performance of the Lowest Performing Underlying if its Ending Value is greater than its Starting Value;

¡ desire to limit downside exposure to the Lowest Performing Underlying through the Buffer Amount;

¡are willing to accept the risk that, if the Securities are not automatically called and the Ending Value of the Lowest Performing Underlying on the Final Calculation Day is less than its Starting Value by more than the Buffer Amount, they will lose some, and possibly up to 90%, of the principal amount per Security at maturity;

¡understand that the term of the Securities may be as short as approximately one year if the Securities are called on the Call Date;

¡ understand that the return on the Securities will depend solely on the performance of the Underlying that is the Lowest Performing Underlying on the Call Date or the Final Calculation Day, as applicable, and that they will not benefit in any way from the performance of the better performing Underlying;

¡understand that the Securities are riskier than alternative investments linked to only one of the Underlyings or linked to a basket composed of each Underlying;

¡understand and are willing to accept the full downside risks of each Underlying;

¡are willing to forgo interest payments on the Securities and dividends on shares of the Fund or on the securities held by or included in the Underlyings, as applicable; and

¡are willing to hold the Securities until maturity.

The Securities may not be an appropriate investment for investors who:

¡seek a liquid investment or are unable or unwilling to hold the Securities to maturity;

¡require full payment of the principal amount of the Securities at maturity;

¡ seek a security with a fixed term;

¡are unwilling to accept the risk that, if the closing value of the Lowest Performing Underlying is less than its Starting Value on both the Call Date and the Final Calculation Day, they will not receive any positive return on their investment in the Securities;

¡are unwilling to accept the risk that the closing value of the Lowest Performing Underlying may decrease by more than the Buffer Amount from its Starting Value to its Ending Value;

¡are unwilling to purchase securities with an estimated value as of the Pricing Date that is lower than the public offering price and that may be as low as the lower estimated value set forth on the cover page;

¡seek current income;

¡are unwilling to accept the risk of exposure to the Underlyings;

¡seek exposure to a basket composed of each Underlying or a similar investment in which the overall return is based on a blend of the performances of the Underlyings, rather than solely on the Lowest Performing Underlying;

¡seek exposure to the Underlyings but are unwilling to accept the risk/return trade-offs inherent in the Maturity Payment Amount for the Securities;

¡are unwilling to accept the credit risk of BofA Finance, as issuer, and BAC, as guarantor, to obtain exposure to the Underlyings generally, or to obtain exposure to the Underlyings that the Securities provide specifically; or

¡prefer the lower risk of conventional fixed income investments with comparable maturities issued by companies with comparable credit ratings.

The considerations identified above are not exhaustive. Whether or not the Securities are an appropriate investment for you will depend on your individual circumstances, and you should reach an investment decision only after you and your investment, legal, tax, accounting and other advisors have carefully considered the appropriateness of an investment in the Securities in light of your particular circumstances. You should also review carefully "Selected Risk Considerations" herein and "Risk Factors" in each of the accompanying product supplement, prospectus supplement and prospectus for risks related to an investment in the Securities. For more information about the Underlyings, please see the sections titled "The Russell 2000^® Index" and "The iShares^® Russell 2000 Value ETF" below.

PS-7

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

Whether the Securities are automatically called on the Call Date for the Call Premium will be determined based on the closing value of the Lowest Performing Underlying on the Call Date as follows:

PS-8

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

If the Securities are not automatically called, then on the Maturity Date, you will receive a cash payment per Security (the Maturity Payment Amount) calculated as follows:

PS-9

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

Selected Risk Considerations

The Securities have complex features and investing in the Securities will involve risks not associated with an investment in conventional debt securities. Your decision to purchase the Securities should be made only after carefully considering the risks of an investment in the Securities, including those discussed below, with your advisors in light of your particular circumstances. The Securities are not an appropriate investment for you if you are not knowledgeable about significant elements of the Securities or financial matters in general. You should carefully review the more detailed explanation of risks relating to the Securities in the "Risk Factors" sections beginning on page PS-6 of the accompanying product supplement, page S-7 of the accompanying prospectus supplement and page 7 of the accompanying prospectus.

Structure-related Risks

Your investment may result in a loss; there is no guaranteed return of principal. There is no fixed principal repayment amount on the Securities at maturity. If the Securities are not automatically called and the Ending Value of the Lowest Performing Underlying is less than its Threshold Value, at maturity, you will lose 1% of the principal amount for each 1% that the Ending Value of the Lowest Performing Underlying is less than its Threshold Value. In that case, you will lose some or a significant portion of your investment in the Securities.

The Securities do not bear interest. Unlike a conventional debt security, no interest payments will be paid over the term of the Securities, regardless of the extent to which the closing value of either Underlying exceeds its Starting Value or Threshold Value on the Call Date or the Final Calculation Day, as applicable.

If the Securities are automatically called, your return will be limited to the Call Premium. If the Securities are automatically called, the positive return on the Securities will be limited to the Call Premium, and you will not participate in any appreciation of the Underlyings beyond the Call Premium, which may be significant. Accordingly, if the Securities are automatically called, the return on the Securities may be less than the return in a direct investment in the Fund or the securities represented by the Underlyings. If the Securities are automatically called, you will not have the opportunity to participate in any appreciation of the Underlyings at the Upside Participation Rate.

The Call Premium or Maturity Payment Amount, as applicable, will not reflect the values of the Underlyings other than on the Call Date or the Final Calculation Day, as applicable. The values of the Underlyings during the term of the Securities other than on the Call Date or the Final Calculation Day, as applicable, will not affect payments on the Securities. Notwithstanding the foregoing, investors should generally be aware of the performance of the Underlyings while holding the Securities, as the performance of the Underlyings may influence the market value of the Securities. The calculation agent will determine whether the Securities will be automatically called, and will calculate the Call Premium or the Maturity Payment Amount, as applicable, by comparing only the Starting Value or Threshold Value, as applicable, to the closing value of the Lowest Performing Underlying on the Call Date or the Final Calculation Day, as applicable. No other values of the Underlyings will be taken into account. As a result, if the Securities are not automatically called, and the Ending Value of the Lowest Performing Underlying is less than its Threshold Value, you will receive less than the principal amount at maturity even if the value of each Underlying was always above its Threshold Value prior to the Final Calculation Day.

The Securities are subject to a potential automatic call, which would limit your ability to receive further payment on the Securities. The Securities are subject to a potential automatic call. The Securities will be automatically called if, on the Call Date, the closing value of the Lowest Performing Underlying is greater than or equal to its Starting Value. If the Securities are automatically called, you will be entitled to receive the principal amount and the Call Premium, and no further amounts will be payable with respect to the Securities. If the Securities are called, you may be unable to invest in other securities with a similar level of risk that could provide a return that is similar to the Securities.

Because the Securities are linked to the lowest performing (and not the average performance) of the Underlyings, you may not receive any return on the Securities and may lose a significant portion or all of your principal amount even if the closing value of one Underlying is always greater than or equal to its Starting Value or Threshold Value. Your Securities are linked to the lowest performing of the Underlyings, and a change in the value of one Underlying may not correlate with changes in the value of the other Underlying. The Securities are not linked to a basket composed of the Underlyings, where the depreciation in the value of one Underlying could be offset to some extent by the appreciation in the value of the other Underlying. In the case of the Securities, the individual performance of each Underlying would not be combined, and the depreciation in the value of one Underlying would not be offset by any appreciation in the value of the other Underlying. Even if the closing value of an Underlying is at or above its Starting Value on the Call Date, the Securities will not be automatically called, and you will not receive the Call Premium on the Call Date, if the closing value of the other Underlying is below its Starting Value on that day. In addition, even if the Ending Value of an Underlying is at or above its Threshold Value, you will lose some or a significant portion of your principal if the Ending Value of the Lowest Performing Underlying is below its Threshold Value.

Your return on the Securities may be less than the yield on a conventional debt security of comparable maturity. Any return that you receive on the Securities may be less than the return you would earn if you purchased a conventional debt security with the same Maturity Date. As a result, your investment in the Securities may not reflect the full opportunity cost to you when you consider factors,

PS-10

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

such as inflation, that affect the time value of money.

The Call Settlement Date or the Maturity Date may be postponed if the Call Date or the Final Calculation Day is postponed. The Call Date or Final Calculation Day with respect to an Underlying will be postponed if the applicable originally scheduled Call Date or Final Calculation Day is not a trading day with respect to either Underlying or if the calculation agent determines that a market disruption event has occurred or is continuing with respect to that Underlying on the Call Date or Final Calculation Day. If such a postponement occurs with respect to the Call Date, then the Call Settlement Date will be postponed. If such a postponement occurs with respect to the Final Calculation Day, the Maturity Date will be the later of (i) the initial Maturity Date and (ii) three business days after the Final Calculation Day as postponed.

Any payment on the Securities is subject to our credit risk and the credit risk of the Guarantor, and actual or perceived changes in our or the Guarantor's creditworthiness are expected to affect the value of, or any amounts payable on, the Securities. The Securities are our unsecured senior debt securities. Any payment on the Securities will be fully and unconditionally guaranteed by the Guarantor. The Securities are not guaranteed by any entity other than the Guarantor. As a result, your receipt of the payment upon automatic call or the Maturity Payment Amount at maturity will be dependent upon our ability and the ability of the Guarantor to repay our respective obligations under the Securities on the applicable payment date, regardless of the closing value of the Lowest Performing Underlying as compared to its Starting Value or Threshold Value, as applicable. No assurance can be given as to what our financial condition or the financial condition of the Guarantor will be at any time after the Pricing Date of the Securities. If we and the Guarantor become unable to meet our respective financial obligations as they become due, you may not receive the amount(s) payable under the terms of the Securities.

In addition, our credit ratings and the credit ratings of the Guarantor are assessments by ratings agencies of our respective abilities to pay our obligations. Consequently, our or the Guarantor's perceived creditworthiness and actual or anticipated decreases in our or the Guarantor's credit ratings or increases in the spread between the yield on our respective securities and the yield on U.S. Treasury securities (the "credit spread") prior to the Maturity Date of your Securities may adversely affect the market value of the Securities. However, because your return on the Securities depends upon factors in addition to our ability and the ability of the Guarantor to pay our respective obligations, such as the values of the Underlyings, an improvement in our or the Guarantor's credit ratings will not reduce the other investment risks related to the Securities.

We are a finance subsidiary and, as such, have no independent assets, operations or revenues. We are a finance subsidiary of the Guarantor, have no operations other than those related to the issuance, administration and payment of our obligations under our debt securities that are guaranteed by the Guarantor, and are dependent upon the Guarantor and/or its other subsidiaries to meet our obligations under the Securities in the ordinary course. Therefore, our ability to make payments on the Securities may be limited.

Valuation- and Market-related Risks

The public offering price you pay for the Securities will exceed their initial estimated value. The range of initial estimated values of the Securities that is provided on the cover page of this preliminary pricing supplement, and the initial estimated value as of the Pricing Date that will be provided in the final pricing supplement, are each estimates only, determined as of a particular point in time by reference to our and our affiliates' pricing models. These pricing models consider certain assumptions and variables, including our credit spreads and those of the Guarantor, the Guarantor's internal funding rate, mid-market terms on hedging transactions, expectations on interest rates, dividends and volatility, price-sensitivity analysis, and the expected term of the Securities. These pricing models rely in part on certain forecasts about future events, which may prove to be incorrect. If you attempt to sell the Securities prior to maturity, their market value may be lower than the price you paid for them and lower than their initial estimated value. This is due to, among other things, changes in the values of the Underlyings, changes in the Guarantor's internal funding rate, and the inclusion in the public offering price of the underwriting discount, and the hedging related charges, all as further described in "Structuring the Securities" below. These factors, together with various credit, market and economic factors over the term of the Securities, are expected to reduce the price at which you may be able to sell the Securities in any secondary market and will affect the value of the Securities in complex and unpredictable ways.

The initial estimated value does not represent a minimum or maximum price at which we, BAC, BofAS or any of our other affiliates or WFS or its affiliates would be willing to purchase your Securities in any secondary market (if any exists) at any time. The value of your Securities at any time after issuance will vary based on many factors that cannot be predicted with accuracy, including the performance of the Underlyings, our and BAC's creditworthiness and changes in market conditions.

We cannot assure you that a trading market for your Securities will ever develop or be maintained. We will not list the Securities on any securities exchange. We cannot predict how the Securities will trade in any secondary market or whether that market will be liquid or illiquid.

The Securities are not designed to be short-term trading instruments, and if you attempt to sell the Securities prior to maturity, their market value, if any, will be affected by various factors that interrelate in complex ways, and their market value may be less than the principal amount. The following factors are expected to affect the value of the Securities: values of the

PS-11

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

Underlyings at such time; volatility of the Underlyings; economic and other conditions generally; interest rates; dividend yields; exchange rate movements and volatility; our and the Guarantor's financial condition and creditworthiness; and time to maturity.

Conflict-related Risks

Trading and hedging activities by us, the Guarantor and any of our other affiliates, including BofAS, and WFS and its affiliates, may create conflicts of interest with you and may adversely affect your return on the Securities and their market value. We, the Guarantor or one or more of our other affiliates, including BofAS, and WFS and its affiliates, may buy or sell shares of the Fund or the securities held by or included in any of the Underlyings, as applicable, or futures or options contracts on the Underlyings or those securities, or other listed or over-the-counter derivative instruments linked to the Underlyings or those securities. While we, the Guarantor or one or more of our other affiliates, including BofAS, and WFS and its affiliates, may from time to time own shares of the Fund or the securities held by or included in the Underlyings, as applicable, except to the extent that BAC's or Wells Fargo & Company's (the parent company of WFS) common stock may be included in the Underlyings, as applicable, we, the Guarantor and our other affiliates, including BofAS, and WFS and its affiliates, do not control any company included in the Underlyings, and have not verified any disclosure made by any other company. We, the Guarantor or one or more of our other affiliates, including BofAS, or WFS and its affiliates, may execute such purchases or sales for our own or their own accounts, for business reasons, or in connection with hedging our obligations under the Securities. These transactions may present a conflict of interest between your interest in the Securities and the interests we, the Guarantor and our other affiliates, including BofAS, and WFS and its affiliates, may have in our or their proprietary accounts, in facilitating transactions, including block trades, for our or their other customers, and in accounts under our or their management. These transactions may adversely affect the values of the Underlyings in a manner that could be adverse to your investment in the Securities. On or before the Pricing Date, any purchases or sales by us, the Guarantor or our other affiliates, including BofAS or others on its behalf, and WFS and its affiliates (including for the purpose of hedging some or all of our anticipated exposure in connection with the Securities), may adversely affect the values of the Underlyings. Consequently, the values of the Underlyings may change subsequent to the Pricing Date, which may adversely affect the market value of the Securities.

We, the Guarantor or one or more of our other affiliates, including BofAS, and WFS and its affiliates, also expect to engage in hedging activities that could adversely affect the values of the Underlyings on the Pricing Date. In addition, these hedging activities, including the unwinding of a hedge, may decrease the market value of your Securities prior to maturity, and may adversely affect the amounts to be paid on the Securities. We, the Guarantor or one or more of our other affiliates, including BofAS, and WFS and its affiliates, may purchase or otherwise acquire a long or short position in the Securities and may hold or resell the Securities. For example, BofAS may enter into these transactions in connection with any market making activities in which it engages. We cannot assure you that these activities will not adversely affect the values of the Underlyings, the market value of your Securities prior to maturity or the amounts payable, if any, on the Securities.

If WFS, BofAS or an affiliate of either selling agent participating as a dealer in the distribution of the Securities conducts hedging activities for us in connection with the Securities, such selling agent or participating dealer will expect to realize a projected profit from such hedging activities, and this projected profit will be in addition to any discount, concession or fee received in connection with the sale of the Securities to you. This additional projected profit may create a further incentive for the selling agents or participating dealers to sell the Securities to you.

There may be potential conflicts of interest involving the calculation agent, which is an affiliate of ours. We have the right to appoint and remove the calculation agent. One of our affiliates will be the calculation agent for the Securities and, as such, will make a variety of determinations relating to the Securities, including the amounts that will be paid on the Securities. Under some circumstances, these duties could result in a conflict of interest between its status as our affiliate and its responsibilities as calculation agent.

Underlying-related Risks

Any payments on the Securities and whether the Securities are automatically called will depend upon the performance of the Underlyings, and therefore the Securities are subject to the following risks, each as discussed in more detail in the accompanying product supplement.

●Changes that affect the Index may adversely affect the value of the Securities and any payments on the Securities.

●We cannot control actions by any of the unaffiliated companies whose securities are included in the Index.

●We and our affiliates have no affiliation with the index sponsor and have not independently verified its public disclosure of information.

●Risks associated with the fund underlying index, or the underlying assets of the Fund, will affect the value of the Fund and hence the value of the Securities.

PS-12

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

●Changes that affect the Fund or its fund underlying index may adversely affect the value of the Securities and any payments on the Securities.

●We cannot control actions by any of the unaffiliated companies whose securities are held by or included in the Fund or its fund underlying index.

●We and our affiliates have no affiliation with the fund sponsor or fund underlying index sponsor and have not independently verified their public disclosure of information.

●There are risks associated with funds.

The Securities are subject to risks associated with small-size capitalization companies. The equity securities held by the RTY and IWN are issued by companies with small-sized market capitalization. The stock prices of small-size companies may be more volatile than stock prices of large capitalization companies. Small-size capitalization companies may be less able to withstand adverse economic market trade and competitive conditions relative to larger companies. Small-size capitalization companies may also be more susceptible to adverse developments related to their products or services.

The anti-dilution adjustments will be limited. The calculation agent may adjust the Adjustment Factor of the IWN and other terms of the Securities to reflect certain actions by the IWN, as described in the section "General Terms of the Securities- Anti-dilution Adjustments Relating to a Fund; Alternate Calculation" in the accompanying product supplement. The calculation agent will not be required to make an adjustment for every event that may affect the IWN and will have broad discretion to determine whether and to what extent an adjustment is required.

The performance of the IWN may not correlate with the performance of its fund underlying index as well as the net asset value per share of the IWN, especially during periods of market volatility. The performance of the IWN and that of its fund underlying index generally will vary due to, for example, transaction costs, management fees, certain corporate actions, and timing variances. Moreover, it is also possible that the performance of the IWN may not fully replicate or may, in certain circumstances, diverge significantly from the performance of its fund underlying index. This could be due to, for example, the IWN not holding all or substantially all of the underlying assets included in its fund underlying index and/or holding assets that are not included in its fund underlying index, the temporary unavailability of certain securities in the secondary market, the performance of any derivative instruments held by the IWN, differences in trading hours between the IWN and its fund underlying index, or other circumstances. This variation in performance is called the "tracking error," and, at times, the tracking error may be significant. In addition, because the shares of the IWN are traded on a securities exchange and are subject to market supply and investor demand, the market price of one share of the IWN may differ from its net asset value per share; shares of the IWN may trade at, above, or below its net asset value per share. During periods of market volatility, securities held by the IWN may be unavailable in the secondary market, market participants may be unable to calculate accurately the net asset value per share of the IWN and the liquidity of the IWN may be adversely affected. Market volatility may also disrupt the ability of market participants to trade shares of the IWN. Further, market volatility may adversely affect, sometimes materially, the prices at which market participants are willing to buy and sell shares of the IWN. As a result, under these circumstances, the market value of shares of the IWN may vary substantially from the net asset value per share of the IWN.

The publisher or the sponsor or investment advisor of the Underlying may adjust an Underlying in a way that affects their values, and the publisher or the sponsor or investment advisor has no obligation to consider your interests. The publisher or the sponsor or investment advisor of an Underlying can add, delete, or substitute the components included in an Underlying or make other methodological changes that could change its value. Any of these actions could adversely affect the value of your Notes.

Tax-related Risks

The U.S. federal income and estate tax consequences of the Securities are uncertain, and may be adverse to a holder of the Securities. See "U.S. Federal Income Tax Summary" below and "U.S. Federal Income Tax Summary" beginning on page PS-36 of the accompanying product supplement.

PS-13

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

Hypothetical Examples and Returns

The hypothetical payout profile, returns table and examples below illustrate hypothetical payments upon automatic call or at maturity for a $1,000 principal amount security on a hypothetical offering of securities under various scenarios, with the assumptions set forth in the table below. The terms used for purposes of these hypothetical examples do not represent the actual Starting Value or Threshold Value of either Underlying. The hypothetical Starting Value of 100.00 for each Underlying has been chosen for illustrative purposes only and does not represent the actual Starting Value of either Underlying. The actual Starting Value and Threshold Value for each Underlying will be determined on the Pricing Date and will be set forth under "Terms of the Securities" above. For historical data regarding the actual closing values of the Underlyings, see the historical information set forth herein. The payout profile, returns table and examples below assume that an investor purchases the Securities for $1,000 per Security. These examples are for purposes of illustration only and the values used in the examples may have been rounded for ease of analysis. The actual amount you receive at maturity or upon automatic call and the resulting pre-tax total rate of return will depend on the actual terms of the Securities.

Hypothetical Payout Profile

PS-14

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

Hypothetical Returns

If the Securities are automatically called:

If the Securities are automatically called on the Call Date, on the Call Settlement Date you will receive the principal amount of your Securities plus the Call Premium, resulting in a hypothetical pre-tax total rate of return of 14.05%.

If the Securities are not automatically called:

⁽¹⁾The Performance Factor of the Lowest Performing Underlying on the Final Calculation Day is equal to its Ending Value divided by its Starting Value (expressed as a percentage).

Hypothetical Examples of Payment Upon Automatic Call or At Maturity

Example 1. The closing value of the Lowest Performing Underlying on the Call Date is greater than its Starting Value, and the Securities are automatically called on the Call Date:

Step 1: Determine which Underlying is the Lowest Performing Underlying on the Call Date.

In this example, the iShares^® Russell 2000 Value ETF has the lowest Performance Factor on the Call Date and is, therefore, the Lowest Performing Underlying on the Call Date.

Step 2: Determine the payment upon automatic call.

PS-15

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

Because the hypothetical closing value of the Lowest Performing Underlying on the Call Date is greater than its hypothetical Starting Value, the Securities are automatically called on the Call Date and you will receive on the Call Settlement Date the principal amount of your Securities plus a Call Premium of 14.05% of the principal amount. Even though the Lowest Performing Underlying appreciated by 60.00% from its Starting Value to its closing value on the Call Date in this example, your return is limited to the Call Premium of 14.05%.

On the Call Settlement Date, you would receive $1,140.50 per Security.

Example 2. The Securities are not automatically called. The Ending Value of the Lowest Performing Underlying is greater than its Starting Value and the Maturity Payment Amount is greater than the principal amount of your Securities:

Step 1: Determine which Underlying is the Lowest Performing Underlying on the Final Calculation Day.

In this example, the Russell 2000^® Index has the lowest Performance Factor on the Final Calculation Day and is, therefore, the Lowest Performing Underlying on the Final Calculation Day.

Step 2: Determine the Maturity Payment Amount based on the Underlying Return of the Lowest Performing Underlying on the Final Calculation Day.

Because the hypothetical closing value of the Lowest Performing Underlying on the Call Date is less than the hypothetical Starting Value, the Securities are not automatically called. Because the hypothetical Ending Value of the Lowest Performing Underlying is greater than its hypothetical Starting Value, the Maturity Payment Amount per Security would be equal to the principal amount of $1,000 plus a positive return equal to:

$1,000 × Underlying Return of the Lowest Performing Underlying × Upside Participation Rate

$1,000 × 20.00% × 125.00%

= $250.00

On the Maturity Date, you would receive $1,250.00 per Security.

Example 3. The Securities are not automatically called. The Ending Value of the Lowest Performing Underlying is less than its Starting Value but greater than its Threshold Value and the Maturity Payment Amount is equal to the principal amount of your Securities:

PS-16

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

Step 1: Determine which Underlying is the Lowest Performing Underlying on the Final Calculation Day.

In this example, the Russell 2000^® Index has the lowest Performance Factor on the Final Calculation Day and is, therefore, the Lowest Performing Underlying on the Final Calculation Day.

Step 2: Determine the Maturity Payment Amount based on the Underlying Return of the Lowest Performing Underlying on the Final Calculation Day.

Because the hypothetical closing value of the Lowest Performing Underlying on the Call Date is less than its hypothetical Starting Value, the Securities are not automatically called. Because the hypothetical Ending Value of the Lowest Performing Underlying is less than its hypothetical Starting Value, but not by more than 10%, you would receive the principal amount of your Securities at maturity.

On the Maturity Date, you would receive $1,000.00 per Security.

Example 4. The Securities are not automatically called. The Ending Value of the Lowest Performing Underlying is less than its Threshold Value and the Maturity Payment Amount is less than the principal amount:

Step 1: Determine which Underlying is the Lowest Performing Underlying on the Final Calculation Day.

In this example, the Russell 2000^® Index has the lowest Performance Factor on the Final Calculation Day and is, therefore, the Lowest Performing Underlying on the Final Calculation Day.

Step 2: Determine the Maturity Payment Amount based on the Underlying Return of the Lowest Performing Underlying on the Final Calculation Day.

Because the hypothetical closing value of the Lowest Performing Underlying on the Call Date is less than its hypothetical Starting Value, the Securities are not automatically called. Because the hypothetical Ending Value of the Lowest Performing Underlying is less than its hypothetical Starting Value by more than the Buffer Amount, you would lose a portion of the principal amount of your Securities and would be paid a Maturity Payment Amount equal to:

$1,000 + [$1,000 × (Underlying Return of the Lowest Performing Underlying + Buffer Amount)]

$1,000 + [$1,000 × (-50.00% + 10%)]

= $600.00

On the Maturity Date, you would receive $500.00 per Security, resulting in a loss of 40.00%.

PS-17

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

All disclosures contained in this pricing supplement regarding the Underlyings, including, without limitation, their make-up, method of calculation, and changes in their components, have been derived from publicly available sources. The information reflects the policies of, and is subject to change by, each of FTSE Russell ("FTSE"), the sponsor of the RTY, and BlackRock Fund Advisors ("BFA"), the investment advisor to the IWN. We refer to FTSE as the "Underlying Sponsor" and BFA as the "Investment Advisor". The Underlying Sponsor and the Investment Advisor, which license the copyright and all other rights to the respective Underlyings, have no obligation to continue to publish, and may discontinue publication of, the Underlyings. The consequences of either Underlying Sponsor or Investment Advisor discontinuing publication of the applicable Underlying are discussed in "General Terms of the Securities - Discontinuance of an Index" and "-Anti-dilution Adjustments Relating to a Fund; Alternate Calculation" in the accompanying product supplement. None of us, the Guarantor, the calculation agent, or BofAS accepts any responsibility for the calculation, maintenance or publication of either Underlying or any successor index or successor fund. None of us, the Guarantor, BofAS or any of our other affiliates makes any representation to you as to the future performance of the Underlyings. You should make your own investigation into the Underlyings.

The Russell 2000^® Index

The RTY was developed by Russell Investments ("Russell") before FTSE International Limited and Russell combined in 2015 to create FTSE Russell, which is wholly owned by London Stock Exchange Group. Additional information on the RTY is available at the following website: http://www.ftserussell.com. No information on that website is deemed to be included or incorporated by reference in this pricing supplement.

Russell began dissemination of the RTY on January 1, 1984. FTSE Russell calculates and publishes the RTY. The RTY was set to 135 as of the close of business on December 31, 1986. The RTY is designed to track the performance of the small capitalization segment of the U.S. equity market. As a subset of the Russell 3000^® Index, the RTY consists of the smallest 2,000 companies included in the Russell 3000^® Index. The Russell 3000^® Index measures the performance of the largest 3,000 U.S. companies, representing approximately 98% of the investable U.S. equity market. The RTY is determined, comprised, and calculated by FTSE Russell without regard to the Notes.

Selection of Stocks Comprising the RTY

All companies eligible for inclusion in the RTY must be classified as a U.S. company under FTSE Russell's country-assignment methodology. If a company is incorporated, has a stated headquarters location, and trades in the same country (American Depositary Receipts and American Depositary Shares are not eligible), then the company is assigned to its country of incorporation. If any of the three factors are not the same, FTSE Russell defines three Home Country Indicators ("HCIs"): country of incorporation, country of headquarters, and country of the most liquid exchange (as defined by a two-year average daily dollar trading volume) from all exchanges within a country. Using the HCIs, FTSE Russell compares the primary location of the company's assets with the three HCIs. If the primary location of its assets matches any of the HCIs, then the company is assigned to the primary location of its assets. If there is insufficient information to determine the country in which the company's assets are primarily located, FTSE Russell will use the country from which the company's revenues are primarily derived for the comparison with the three HCIs in a similar manner. FTSE Russell uses the average of two years of assets or revenues data to reduce potential turnover. If conclusive country details cannot be derived from assets or revenues data, FTSE Russell will assign the company to the country of its headquarters, which is defined as the address of the company's principal executive offices, unless that country is a Benefit Driven Incorporation ("BDI") country, in which case the company will be assigned to the country of its most liquid stock exchange. BDI countries include: Anguilla, Antigua and Barbuda, Bahamas, Barbados, Belize, Bermuda, Bonaire, British Virgin Islands, Cayman Islands, Channel Islands, Cook Islands, Curacao, Faroe Islands, Gibraltar, Guernsey, Isle of Man, Jersey, Liberia, Marshall Islands, Panama, Saba, Sint Eustatius, Sint Maarten, and Turks and Caicos Islands. For any companies incorporated or headquartered in a U.S. territory, including Puerto Rico, Guam, and U.S. Virgin Islands, a U.S. HCI is assigned.

All securities eligible for inclusion in the RTY must trade on a major U.S. exchange. Stocks must have a closing price at or above $1.00 on their primary exchange on the last trading day in May to be eligible for inclusion during annual reconstitution. However, in order to reduce unnecessary turnover, if an existing member's closing price is less than $1.00 on the last day of May, it will be considered eligible if the average of the daily closing prices (from its primary exchange) during the month of May is equal to or greater than $1.00. Initial public offerings are added each quarter and must have a closing price at or above $1.00 on the last day of their eligibility period in order to qualify for index inclusion. If an existing stock does not trade on the "rank day" (typically the last trading day in May but a confirmed timetable is announced each spring) but does have a closing price at or above $1.00 on another eligible U.S. exchange, that stock will be eligible for inclusion.

An important criterion used to determine the list of securities eligible for the RTY is total market capitalization, which is defined as the market price as of the last trading day in May for those securities being considered at annual reconstitution times the total number of shares outstanding. Where applicable, common stock, non-restricted exchangeable shares and partnership units/membership interests are used to determine market capitalization. Any other form of shares such as preferred stock, convertible preferred stock, redeemable

PS-18

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

shares, participating preferred stock, warrants and rights, installment receipts or trust receipts, are excluded from the calculation. If multiple share classes of common stock exist, they are combined. In cases where the common stock share classes act independently of each other (e.g., tracking stocks), each class is considered for inclusion separately. If multiple share classes exist, the pricing vehicle will be designated as the share class with the highest two-year trading volume as of the rank day in May.

Companies with a total market capitalization of less than $30 million are not eligible for the RTY. Similarly, companies with only 5% or less of their shares available in the marketplace are not eligible for the RTY. Royalty trusts, limited liability companies, closed-end investment companies (companies that are required to report Acquired Fund Fees and Expenses, as defined by the SEC, including business development companies), blank check companies, special purpose acquisition companies, and limited partnerships are also ineligible for inclusion. Bulletin board, pink sheets, and over-the-counter traded securities are not eligible for inclusion. Exchange traded funds and mutual funds are also excluded.

Annual reconstitution is a process by which the RTY is completely rebuilt. Based on closing levels of the company's common stock on its primary exchange on the rank day of May of each year, FTSE Russell reconstitutes the composition of the RTY using the then existing market capitalizations of eligible companies. Reconstitution of the RTY occurs on the last Friday in June or, when the last Friday in June is the 29th or 30th, reconstitution occurs on the prior Friday. In addition, FTSE Russell adds initial public offerings to the RTY on a quarterly basis based on total market capitalization ranking within the market-adjusted capitalization breaks established during the most recent reconstitution. After membership is determined, a security's shares are adjusted to include only those shares available to the public. This is often referred to as "free float." The purpose of the adjustment is to exclude from market calculations the capitalization that is not available for purchase and is not part of the investable opportunity set.

Historical Performance of the RTY

The following graph sets forth the daily historical performance of the RTY in the period from January 4, 2021 through March 9, 2026. We obtained this historical data from Bloomberg L.P. We have not independently verified the accuracy or completeness of the information obtained from Bloomberg L.P. The horizontal line in the graph represents the RTY's hypothetical Threshold Value of 2,298.303, which is 90% of the RTY's hypothetical Starting Value 2,553.67, which was its closing level on March 9, 2026. The actual Starting Value and Threshold Value will be determined on the Pricing Date.

This historical data on the RTY is not necessarily indicative of the future performance of the RTY or what the value of the Securities may be. Any historical upward or downward trend in the level of the RTY during any period set forth above is not an indication that the level of the RTY is more or less likely to increase or decrease at any time over the term of the Securities.

Before investing in the Securities, you should consult publicly available sources for the levels of the RTY.

License Agreement

PS-19

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

"Russell 2000^®" and "Russell 3000^®" are trademarks of FTSE Russell and have been licensed for use by our affiliate, Merrill Lynch, Pierce, Fenner & Smith Incorporated ("MLPF&S"). The Notes are not sponsored, endorsed, sold, or promoted by FTSE Russell, and FTSE Russell makes no representation regarding the advisability of investing in the Notes.

FTSE Russell and MLPF&S have entered into a non-exclusive license agreement providing for the license to MLPF&S and its affiliates, including us, in exchange for a fee, of the right to use indices owned and published by FTSE Russell in connection with some securities, including the Notes. The license agreement provides that the following language must be stated in this pricing supplement:

The Notes are not sponsored, endorsed, sold, or promoted by FTSE Russell. FTSE Russell makes no representation or warranty, express or implied, to the holders of the Notes or any member of the public regarding the advisability of investing in securities generally or in the Notes particularly or the ability of the RTY to track general stock market performance or a segment of the same. FTSE Russell's publication of the RTY in no way suggests or implies an opinion by FTSE Russell as to the advisability of investment in any or all of the securities upon which the RTY is based. FTSE Russell's only relationship to MLPF&S and to us is the licensing of certain trademarks and trade names of FTSE Russell and of the RTY, which is determined, composed, and calculated by FTSE Russell without regard to MLPF&S, us, or the Notes. FTSE Russell is not responsible for and has not reviewed the Notes nor any associated literature or publications and FTSE Russell makes no representation or warranty express or implied as to their accuracy or completeness, or otherwise. FTSE Russell reserves the right, at any time and without notice, to alter, amend, terminate, or in any way change the RTY. FTSE Russell has no obligation or liability in connection with the administration, marketing, or trading of the Notes.

FTSE RUSSELL DOES NOT GUARANTEE THE ACCURACY AND/OR THE COMPLETENESS OF THE RTY OR ANY DATA INCLUDED THEREIN AND FTSE RUSSELL SHALL HAVE NO LIABILITY FOR ANY ERRORS, OMISSIONS, OR INTERRUPTIONS THEREIN. FTSE RUSSELL MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE OBTAINED BY MLPF&S, US, HOLDERS OF THE NOTES, OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE RTY OR ANY DATA INCLUDED THEREIN. FTSE RUSSELL MAKES NO EXPRESS OR IMPLIED WARRANTIES, AND EXPRESSLY DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE WITH RESPECT TO THE RTY OR ANY DATA INCLUDED THEREIN. WITHOUT LIMITING ANY OF THE FOREGOING, IN NO EVENT SHALL FTSE RUSSELL HAVE ANY LIABILITY FOR ANY SPECIAL, PUNITIVE, INDIRECT, OR CONSEQUENTIAL DAMAGES (INCLUDING LOST PROFITS), EVEN IF NOTIFIED OF THE POSSIBILITY OF SUCH DAMAGES.

PS-20

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

iShares^® Russell 2000^® Value ETF is an exchange-traded fund incorporated in the USA. The ETF tracks the performance of the Russell 2000^® Value Index and holds small cap US equities focused on low price to book ratios and lower forecasted growth. Its investments are primarily focused in the consumer discretionary, financial and industrial sectors. The ETF uses a representative sampling approach.

The shares of the iShares^® Russell 2000^® Value ETF are issued by iShares^® Trust, a registered investment company.

●The IWN is a tracking ETF that seeks investment results which correspond generally to the price and yield performance, before fees and expenses, of the Russell 2000^® Value Index.

●The IWN's shares trade on the NYSE Arca under the ticker symbol "IWN".

●The iShares^® Trust's SEC CIK Number is 0001100663.

●IWN's inception date was July 24, 2000.

●The IWN's shares are issued or redeemed only in creation units of 50,000 shares or multiples thereof.

We obtained the following fee information from the iShares^® website without independent verification. The investment advisor is entitled to receive a management fee from the IWN based on the IWN's allocable portion of an aggregate management fee based on the aggregate average daily net assets of the IWN and a set of other specified iShares^® funds (together, the "funds") as follows: 0.2500% per annum of the aggregate net assets less than or equal to $46 billion, plus 0.2375% per annum of the aggregate net assets in excess of $46 billion, up to and including $81 billion, plus 0.225625% per annum of the aggregate net assets in excess of $81 billion, up to and including $111 billion, plus 0.214343% per annum of the aggregate net assets in excess of $111 billion, up to and including $141 billion, plus 0.203626% per annum of the aggregate net assets in excess of $141 billion, up to and including $171 billion, plus 0.193445% per annum of the aggregate net assets in excess of $171 billion. As of March 31, 2025, the aggregate expense ratio of the IWN was 0.24% per annum.

The investment advisory agreement between iShares^® Trust and BFA provides that BFA will pay all operating expenses of the IWN, except the management fees, interest expenses, taxes, expenses incurred with respect to the acquisition and disposition of portfolio securities and the execution of portfolio transactions, including brokerage commissions, distribution fees or expenses, litigation expenses and any extraordinary expenses.

For additional information regarding iShares^® Trust or BFA, please consult the reports and other information iShares^® Trust files with the SEC. In addition, information regarding the IWN (including the top ten holdings and weights and sector weights), may be obtained from other sources including, but not limited to, press releases, newspaper articles, other publicly available documents, and the iShares^® website at us.ishares.com/product_info/fund/overview/IWN.htm. We are not incorporating by reference the website, the sources listed above or any material they include in this pricing supplement.

Investment Objective

The IWN seeks to track the investment results, before fees and expenses, of the Russell 2000^® Value Index, which measures the performance of the small-capitalization value sector of the U.S. equity market, as defined by FTSE Russell, the sponsor of the Russell 2000^® Value Index. The IWN's investment objective and the Russell 2000^® Value Index may be changed without shareholder approval. Notwithstanding the IWN's investment objective, the return on your Notes will not reflect any dividends paid on the IWN shares, on the securities purchased by the IWN or on the securities that comprise the Russell 2000^® Value Index.

Representative Sampling

BFA uses a representative sampling indexing strategy to manage the IWN. This strategy involves investing in a representative sample of securities that collectively has an investment profile similar to that of the Russell 2000^® Value Index. The securities selected are expected to have, in the aggregate, investment characteristics (based on factors such as market capitalization and industry weightings), fundamental characteristics (such as return variability and yield) and liquidity measures similar to those of the Russell 2000^® Value Index.

The IWN generally invests at least 80% of its assets in the component securities of the Russell 2000^® Value Index and in investments that have economic characteristics that are substantially identical to the component securities of the Russell 2000^® Value Index (i.e., depositary receipts representing securities of the Russell 2000^® Value Index) and may invest up to 20% of its assets in certain futures, options and swap contracts, cash and cash equivalents, including shares of money market funds advised by BFA or its affiliates, as well as in securities not included in the Russell 2000^® Value Index, but which BFA believes will help the IWN track the Russell 2000^® Value Index. Also, the IWN may lend securities representing up to one-third of the value of the IWN's total assets (including the value of the collateral received).

PS-21

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

Tracking Error

The performance of the IWN and the Russell 2000^® Value Index may vary due to a variety of factors, including differences between the securities and other instruments held in the IWN's portfolio and those included in the Russell 2000^® Value Index, pricing differences, transaction costs incurred by the IWN, the IWN's holding of uninvested cash, differences in timing of the accrual of or the valuation of dividends or interest, the requirements to maintain pass-through tax treatment, portfolio transactions carried out to minimize the distribution of capital gains to shareholders, acceptance of custom baskets, changes to the Russell 2000^® Value Index or the costs of complying with various new or existing regulatory requirements. Tracking error also may result because the IWN incurs fees and expenses, while the Russell 2000^® Value Index does not. The IWN's use of a representative sampling indexing strategy can be expected to produce a larger tracking error than would result if the IWN used a replication indexing strategy in which an exchange traded fund invests in substantially all of the securities in its index in approximately the same proportions as in the Russell 2000^® Value Index.

Industry Concentration Policy

The IWN will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Russell 2000^® Value Index is concentrated.

The Russell 2000^® Value Index

The Russell 2000^® Value Index measures the capitalization-weighted price performance of the stocks included in the Russell 2000^® Index that are determined by FTSE Russell to be value oriented, with lower price-to-book ratios and lower forecasted growth. The Russell 2000^® Index tracks 2,000 U.S. small-capitalization stocks listed on eligible U.S. exchanges (the "Russell 2000 Stocks"). The Russell 2000^® Value Index is reported by Bloomberg L.P. under the ticker symbol "RUJ."

FTSE Russell's Value and Growth Style Methodology

FTSE Russell uses a "non-linear probability" method to assign stocks to the Russell 2000^® Value Index and the Russell 2000^® Growth Index (the "Growth Index"), an index that measures the capitalization-weighted price performance of the Russell 2000 Stocks determined by FTSE Russell to be growth oriented, with higher price-to-book ratios and higher forecasted and historical growth. FTSE Russell uses three variables in the determination of value and growth. For value, book-to-price (B/P) ratio is used, while for growth, two variables-I/B/E/S forecast medium-term growth (2-year) and sales per share historical growth (5-year)-are used. The term "probability" is used to indicate the degree of certainty that a stock is value or growth based on its relative book-to-price (B/P) ratio, I/B/E/S forecast medium-term growth (2 year) and sales per share historical growth (5 year).

First, the Russell 2000 Stocks are ranked by their adjusted book-to-price ratio (B/P), their I/B/E/S forecast medium-term growth (2 year) and sales per share historical growth (5 year). These rankings are then converted to standardized units, where the value variable represents 50% of the score and the two growth variables represent the remaining 50%. Next, these units are combined to produce a composite value score ("CVS").

The Russell 2000 Stocks are then ranked by their CVS, and a probability algorithm is applied to the CVS distribution to assign growth and value weights to each stock. In general, a stock with a lower CVS is considered growth, a stock with a higher CVS is considered value and a stock with a CVS in the middle range is considered to have both growth and value characteristics, and is weighted proportionately in the Growth Index and the Russell 2000^® Value Index. Stocks are always fully represented by the combination of their growth and value weights (e.g., a stock that is given a 20% weight in the Russell 2000^® Value Index will have an 80% weight in the Growth Index). Style index assignment for non-pricing vehicle share classes will be based on that of the pricing vehicle and assigned consistently across all additional share classes.

Stock A, in the figure below, is a security with 20% of its available shares assigned to the Russell 2000^® Value Index and the remaining 80% assigned to the Growth Index. The growth and value probabilities will always sum to 100%. Hence, the sum of a stock's market capitalization in the Growth Index and the Russell 2000^® Value Index will always equal its market capitalization in the Russell 2000^® Index.

PS-22

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

In the figure above, the quartile breaks are calculated such that approximately 25% of the available market capitalization lies in each quartile. Stocks at the median are divided 50% in each of the Growth Index and the Russell 2000^® Value Index. Stocks below the first quartile are 100% in the Growth Index. Stocks above the third quartile are 100% in the Russell 2000^® Value Index. Stocks falling between the first and third quartile breaks are included in both the Growth Index and the Russell 2000^® Value Index to varying degrees, depending on how far they are above or below the median and how close they are to the first or third quartile breaks.

Roughly 72% of the available market capitalization is classified as all growth or all value. The remaining 30% have some portion of their market value in either the Russell 2000^® Value Index or the Growth Index, depending on their relative distance from the median value score. Note that there is a small position cutoff rule. If a stock's weight is more than 95% in one style index, its weight is increased to 100% in that index.

In an effort to mitigate unnecessary turnover, FTSE Russell implements a banding methodology at the CVS level of the growth and value style algorithm. If a company's CVS change from the previous year is greater than or equal to +/- 0.10 and if the company remains in the Russell 2000^® Index, then the CVS remains unchanged during the next reconstitution process. Keeping the CVS static for these companies does not mean the probability (growth/value) will remain unchanged in all cases due to the relation of a CVS score to the overall index. However, this banding methodology is intended to reduce turnover caused by smaller, less meaningful movements while continuing to allow the larger, more meaningful changes to occur, signaling a true change in a company's relation to the market.

In calculating growth and value weights, stocks with missing or negative values for B/P, or missing values for I/B/E/S growth (negative I/B/E/S growth is valid), or missing sales per share historical growth (6 years of quarterly numbers are required), are allocated by using the mean value score of the Industry Classification Benchmark ("ICB") industry, subsector or sector group of the Russell 2000^® Index into which the company falls. Each missing (or negative B/P) variable is substituted with the industry, subsector or sector group independently. An industry must have five members or the substitution reverts to the subsector, and so forth to the sector. In addition, a weighted value score is calculated for securities with low analyst coverage for I/B/E/S medium-term growth. For securities with coverage by a single analyst, 2/3 of the industry, subsector, or sector group value score is weighted with 1/3 the security's independent value score. For those securities with coverage by two analysts, 2/3 of the independent security's value score is used and only 1/3 of the industry, subsector, or sector group is weighted. For those securities with at least three analysts contributing to the I/B/E/S medium-term growth, 100% of the independent security's value score is used.

Selection of Stocks Comprising the Russell 2000^® Index

All companies eligible for inclusion in the Russell 2000^® Index must be classified as a U.S. company under FTSE Russell's country-assignment methodology. If a company is incorporated, has a stated headquarters location, and trades in the same country (American Depositary Receipts and American Depositary Shares are not eligible), then the company is assigned to its country of incorporation. If any of the three factors are not the same, FTSE Russell defines three Home Country Indicators ("HCIs"): country of incorporation, country of headquarters, and country of the most liquid exchange (as defined by a two-year average daily dollar trading volume) from all exchanges within a country. Using the HCIs, FTSE Russell compares the primary location of the company's assets with the three HCIs. If the primary location of its assets matches any of the HCIs, then the company is assigned to the primary location of its assets. If there is insufficient information to determine the country in which the company's assets are primarily located, FTSE Russell will use the country from which the company's revenues are primarily derived for the comparison with the three HCIs in a similar manner. FTSE Russell uses the average of two years of assets or revenues data to reduce potential turnover. If conclusive country details cannot be derived from assets or revenues data, FTSE Russell will assign the company to the country of its headquarters, which is defined as the address of the company's principal executive offices, unless that country is a Benefit Driven Incorporation ("BDI") country, in which case the company will be assigned to the country of its most liquid stock exchange. BDI countries include: Anguilla, Antigua and Barbuda, Bahamas, Barbados, Belize, Bermuda, Bonaire, British Virgin Islands, Cayman Islands, Channel Islands, Cook Islands, Curacao, Faroe Islands, Gibraltar, Guernsey, Isle of Man, Jersey, Liberia, Marshall Islands, Panama, Saba, Sint Eustatius, Sint Maarten, and Turks and Caicos Islands. For any companies incorporated or headquartered in a U.S. territory, including Puerto Rico, Guam, and U.S. Virgin Islands, a U.S. HCI is assigned.

All securities eligible for inclusion in the Russell 2000^® Index must trade on a major U.S. exchange. Stocks must have a closing price at or above $1.00 on their primary exchange on the last trading day in May to be eligible for inclusion during annual reconstitution. However, in order to reduce unnecessary turnover, if an existing member's closing price is less than $1.00 on the last day of May, it will be considered eligible if the average of the daily closing prices (from its primary exchange) during the month of May is equal to or greater than $1.00. Initial public offerings are added each quarter and must have a closing price at or above $1.00 on the last day of their

PS-23

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

eligibility period in order to qualify for index inclusion. If an existing stock does not trade on the "rank day" (typically the last trading day in May but a confirmed timetable is announced each spring) but does have a closing price at or above $1.00 on another eligible U.S. exchange, that stock will be eligible for inclusion.

An important criterion used to determine the list of securities eligible for the Russell 2000^® Index is total market capitalization, which is defined as the market price as of the last trading day in May for those securities being considered at annual reconstitution times the total number of shares outstanding. Where applicable, common stock, non-restricted exchangeable shares and partnership units/membership interests are used to determine market capitalization. Any other form of shares such as preferred stock, convertible preferred stock, redeemable shares, participating preferred stock, warrants and rights, installment receipts or trust receipts, are excluded from the calculation. If multiple share classes of common stock exist, they are combined. In cases where the common stock share classes act independently of each other (e.g., tracking stocks), each class is considered for inclusion separately. If multiple share classes exist, the pricing vehicle will be designated as the share class with the highest two-year trading volume as of the rank day in May.

Companies with a total market capitalization of less than $30 million are not eligible for the Russell 2000^® Index. Similarly, companies with only 5% or less of their shares available in the marketplace are not eligible for the Russell 2000^® Index. Royalty trusts, limited liability companies, closed-end investment companies (companies that are required to report Acquired Fund Fees and Expenses, as defined by the SEC, including business development companies), blank check companies, special purpose acquisition companies, and limited partnerships are also ineligible for inclusion. Bulletin board, pink sheets, and over-the-counter traded securities are not eligible for inclusion. Exchange traded funds and mutual funds are also excluded.

Annual reconstitution is a process by which the Russell 2000^® Index is completely rebuilt. Based on closing prices of the company's common stock on its primary exchange on the rank day of May of each year, FTSE Russell reconstitutes the composition of the Russell 2000^® Index using the then existing market capitalizations of eligible companies. Reconstitution of the Russell 2000^® Index occurs on the last Friday in June or, when the last Friday in June is the 29th or 30th, reconstitution occurs on the prior Friday. In addition, FTSE Russell adds initial public offerings to the Russell 2000^® Index on a quarterly basis based on total market capitalization ranking within the market-adjusted capitalization breaks established during the most recent reconstitution. After membership is determined, a security's shares are adjusted to include only those shares available to the public. This is often referred to as "free float." The purpose of the adjustment is to exclude from market calculations the capitalization that is not available for purchase and is not part of the investable opportunity set.

Historical Performance of the IWN

The following graph sets forth the daily historical performance of the IWN in the period from January 2, 2021 through March 9, 2026. We obtained this historical data from Bloomberg L.P. We have not independently verified the accuracy or completeness of the information obtained from Bloomberg L.P. The horizontal line in the graph represents the IWN's hypothetical Threshold Value of $172.206, which is 90% of the IWN's hypothetical Starting Value of $191.34, which was its closing value on March 9, 2026. The actual Starting Value and Threshold Value will be determined on the Pricing Date.

PS-24

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

This historical data on the IWN is not necessarily indicative of the future performance of the IWN or what the value of the Securities may be. Any historical upward or downward trend in the value of the IWN during any period set forth above is not an indication that the value of the IWN is more or less likely to increase or decrease at any time over the term of the Securities.

Before investing in the Securities, you should consult publicly available sources for the values and trading patter of the IWN.

PS-25

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

Structuring the Securities

The Securities are our debt securities, the return on which is linked to the performance of the Underlying. The related guarantee is BAC's obligation. Any payments on the Securities, including payment of the Maturity Payment Amount, depend on the credit risk of BofA Finance and BAC and on the performance of the Underlying. As is the case for all of our and BAC's respective debt securities, including our market-linked securities, the economic terms of the Securities reflect our and BAC's actual or perceived creditworthiness at the time of pricing. In addition, because market-linked securities result in increased operational, funding and liability management costs to us and BAC, BAC typically borrows the funds under these types of securities at a rate, which we refer to in this pricing supplement as BAC's internal funding rate, that is more favorable to BAC than the rate that it might pay for a conventional fixed or floating rate debt security. This generally relatively lower internal funding rate, which is reflected in the economic terms of the Securities, along with the fees and charges associated with market-linked securities, typically results in the initial estimated value of the Securities on the Pricing Date being less than their public offering price.

The initial estimated value range of the Securities is set forth on the cover page of this preliminary pricing supplement. The final pricing supplement will set forth the initial estimated value of the Securities as of the Pricing Date.

In order to meet our payment obligations on the Securities, at the time we issue the Securities, we may choose to enter into certain hedging arrangements (which may include call options, put options or other derivatives) with BofAS or one of our other affiliates. The terms of these hedging arrangements are determined based upon terms provided by BofAS and its affiliates, and take into account a number of factors, including our and BAC's creditworthiness, interest rate movements, the volatility of the Underlyings, the tenor of the Securities and the hedging arrangements. The economic terms of the Securities and their initial estimated value depend in part on the terms of these hedging arrangements.

BofAS has advised us that the hedging arrangements will include hedging related charges, reflecting the costs associated with, and our affiliates' profit earned from, these hedging arrangements. Since hedging entails risk and may be influenced by unpredictable market forces, actual profits or losses from these hedging transactions may be more or less than any expected amounts.

For further information, see "Selected Risk Considerations" beginning on page PS-10 above and "Use of Proceeds" on page 15 of the accompanying prospectus.

PS-26

Market Linked Securities- Auto-Callable with Leveraged Upside

Participation and Fixed Percentage Buffered Downside

Principal at Risk Securities Linked to the Lowest Performing of the Russell 2000^® Index and the iShares^® Russell 2000 Value ETF due March 21, 2029

U.S. Federal Income Tax Summary

You should consider the U.S. federal income and estate tax consequences of an investment in the Securities, including the following:

•There is no statutory, judicial, or administrative authority directly addressing the characterization of the Securities.

•You agree with us (in the absence of an administrative determination, or judicial ruling to the contrary) to characterize and treat the Securities for all tax purposes as single financial contracts with respect to the Underlyings. In the opinion of Sidley Austin LLP, our tax counsel, the U.S. federal income tax characterization and treatment of the Securities described herein is a reasonable interpretation of current law.

•Under this characterization and tax treatment of the Securities, a U.S. Holder (as defined on page 71 of the accompanying prospectus) generally will recognize capital gain or loss upon maturity or upon a sale, exchange or redemption of the Securities. This capital gain or loss generally will be long-term capital gain or loss if you held the Securities for more than one year.

•No assurance can be given that the Internal Revenue Service ("IRS") or any court will agree with this characterization and tax treatment.

•In addition, there may exist a risk that an investment in the Securities will be treated, in whole or in part, as a "constructive ownership transaction" to which Section 1260 of the Code applies. If Section 1260 of the Code applies, all or a portion of any long-term capital gain recognized by a U.S. Holder in respect of the Securities will be recharacterized as ordinary income. Because the application of the constructive ownership rules is unclear you are strongly urged to consult your tax advisor with respect to the possible application of the constructive ownership rules to your investment in the Securities.

•Under current IRS guidance, withholding on "dividend equivalent" payments (as discussed in the accompanying product supplement), if any, will not apply to Securities that are issued as of the date of this pricing supplement unless such Securities are "delta-one" instruments. Based on our determination that the Securities are not delta-one instruments, Non-U.S. Holders should not be subject to withholding on dividend equivalent payments, if any, under the Securities.

•Under current law, while the matter is not entirely clear, individual Non-U.S. Holders, and entities whose property is potentially includible in those individuals' gross estates for U.S. federal estate tax purposes (for example, a trust funded by such an individual and with respect to which the individual has retained certain interests or powers), should note that, absent an applicable treaty benefit, the Securities are likely to be treated as U.S. situs property, subject to U.S. federal estate tax. These individuals and entities should consult their own tax advisors regarding the U.S. federal estate tax consequences of investing in the Securities.

You should consult your own tax advisor concerning the U.S. federal income tax consequences to you of acquiring, owning, and disposing of the Securities, as well as any tax consequences arising under the laws of any state, local, foreign, or other tax jurisdiction and the possible effects of changes in U.S. federal or other tax laws. You should review carefully the discussion under the section entitled "U.S. Federal Income Tax Summary" beginning on page PS-36 of the accompanying product supplement.

PS-27