[424B2] BARCLAYS BANK PLC Prospectus Supplement

Rhea-AI Filing Summary

Barclays Bank PLC filed a 424B2 for Accelerated Return Notes linked to the Russell 2000 Index, maturing in January 2027. The notes are unsecured, unsubordinated debt with a $10 principal amount per unit. Investors receive a leveraged return if the index rises, with a 300% participation rate, but returns are capped at a Capped Value of $11.55 to $11.95 per unit. If the index falls, investors can lose principal.

The public offering price is $10.00 per unit, including an underwriting discount of $0.175 and a hedging-related charge of $0.05, for proceeds to Barclays of $9.825 per unit before expenses. Barclays’ initial estimated value is expected to range from $9.217 to $9.717 per unit on the pricing date. The Ending Value is the average over five calculation days before maturity. The notes pay no interest, forgo dividends, will not be listed, and have a minimum purchase of 100 units.

All payments are subject to Barclays’ credit risk and the risk of exercise of any U.K. Bail-in Power. Settlement is expected in December 2025, with maturity in January 2027.

Insights

Structured Products Analyst

Leveraged small-cap exposure with a cap and principal at risk.

The notes provide 3x upside to the Russell 2000 Index up to a capped payoff of $11.55–$11.95 per unit. Below the Starting Value, repayment declines one-for-one, so investors bear downside exposure to small-cap equities while forgoing dividends and interest.

Economics reflect fees and funding: the public price is $10.00 with a $0.175 underwriting discount and a $0.05 hedging charge; Barclays’ initial estimated value is $9.217–$9.717. Cash flows depend on issuer credit and consent to the U.K. Bail-in Power, which can affect payments and terms.

Key mechanics include a 300% participation rate, a five-day maturity valuation period before January 2027, and no listing. Actual investor outcomes will track Russell 2000 price levels at the specified observation dates.

Preliminary Term Sheet (To the Prospectus dated May 15, 2025, the Prospectus Supplement dated May 15, 2025 and Product Supplement EQUITY ARN-1 dated October 29, 2025)  Subject to Completion
Dated October 31, 2025 Filed Pursuant to Rule 424(b)(2)
Registration Statement No. 333-287303

Units $10 principal amount per unit CUSIP No.		Pricing Date* Settlement Date* Maturity Date*	November    , 2025 December    , 2025 January    , 2027
		*Subject to change based on the actual date the notes are priced for initial sale to the public (the “pricing date”)

 Accelerated Return Notes^® Linked to the Russell 2000^® Index

  § Maturity of approximately 14 months

  § 3-to-1 upside exposure to increases in the Russell 2000^® Index (the “Market Measure”), subject to a capped return of [15.50% to 19.50%]

  § 1-to-1 downside exposure to decreases in the Market Measure, with 100% of your principal at risk

  §   All payments occur at maturity and are subject to the credit risk of Barclays Bank PLC.

  § No periodic interest payments

  § In addition to the underwriting discount set forth below, the notes include a hedging-related charge of $0.05 per unit. See “Structuring the Notes.”

  § Limited secondary market liquidity, with no exchange listing

  §   The notes are our unsecured and unsubordinated obligations and are not deposit liabilities of Barclays Bank PLC. The notes are not covered by the U.K. Financial Services Compensation Scheme or insured by the U.S. Federal Deposit Insurance Corporation or any other governmental agency or deposit insurance agency of the United States, the United Kingdom, or any other jurisdiction.

The notes are being issued by Barclays Bank PLC (“Barclays”). There are important differences between the notes and a conventional debt security, including different investment risks and certain additional costs. See “Risk Factors” and “Additional Risk Factors” beginning on page TS-7 of this term sheet and “Risk Factors” beginning on page PS-7 of product supplement EQUITY ARN-1 and beginning on page S-9 of the prospectus supplement.

Our initial estimated value of the notes, based on our internal pricing models, is expected to be between $9.217 and $9.717 per unit on the pricing date, which is less than the public offering price listed below. See “Summary” on the following page, “Risk Factors” beginning on page TS-7 of this term sheet and “Structuring the Notes” below for additional information. The actual value of your notes at any time will reflect many factors and cannot be predicted with accuracy.

Notwithstanding and to the exclusion of any other term of the notes or any other agreements, arrangements or understandings between Barclays and any holder or beneficial owner of the notes (or the trustee on behalf of the holders of the notes), by acquiring the notes, each holder or beneficial owner of the notes acknowledges, accepts, agrees to be bound by, and consents to the exercise of, any U.K. Bail-in Power by the relevant U.K. resolution authority. All payments are subject to the risk of exercise of any U.K. Bail-in Power by the relevant U.K. resolution authority. See “Consent to U.K. Bail-in Power” on page TS-3 and “Risk Factors” beginning on page TS-7 of this term sheet.

None of the Securities and Exchange Commission (the “SEC”), any state securities commission, or any other regulatory body has approved or disapproved of these securities or determined if this Note Prospectus (as defined below) is truthful or complete. Any representation to the contrary is a criminal offense.

	Per Unit	Total
Public offering price(1)	$ 10.000	$
Underwriting discount(1)	$ 0.175	$
Proceeds, before expenses, to Barclays	$ 9.825	$

(1) For any purchase of 300,000 units or more in a single transaction by an individual investor or in combined transactions with the investor’s household in this offering, the public offering price and the underwriting discount will be $9.950 per unit and $0.125 per unit, respectively. See “Supplement to the Plan of Distribution” below.

The notes:

Are Not FDIC Insured Are Not Bank Guaranteed May Lose Value

BofA Securities 

November    , 2025

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

Summary

The Accelerated Return Notes^® Linked to the Russell 2000^® Index, due January    , 2027 (the “notes”) are our unsecured and unsubordinated obligations and are not deposit liabilities of Barclays. The notes are not covered by the U.K. Financial Services Compensation Scheme or insured by the U.S. Federal Deposit Insurance Corporation or any other governmental agency or deposit insurance agency of the United States, the United Kingdom or any other jurisdiction. The notes will rank equally with all of our other unsecured and unsubordinated debt. Any payments due on the notes, including any repayment of principal, will be subject to the credit risk of Barclays and to the risk of exercise of any U.K. Bail-in Power (as described herein) or any other resolution measure by any relevant U.K. resolution authority.

The notes provide you a leveraged return, subject to a cap, if the Ending Value of the Market Measure, which is the Russell 2000^® Index (the “Market Measure”), is greater than the Starting Value. If the Ending Value is less than the Starting Value, you will lose all or a portion of the principal amount of your notes. Any payments on the notes will be calculated based on the $10 principal amount per unit and will depend on the performance of the Market Measure, subject to our credit risk. See “Terms of the Notes” below.

On the cover page of this term sheet, we have provided the estimated value range for the notes. This range of estimated values was determined based on our internal pricing models, which take into account a number of variables, including volatility, interest rates and our internal funding rates, which are our internally published borrowing rates and the economic terms of certain related hedging arrangements. This range of estimated values may not correlate on a linear basis with the range of Capped Value for the notes. The estimated value of the notes calculated on the pricing date is expected to be less than the public offering price and will be set forth in the final term sheet made available to investors in the notes.

The economic terms of the notes (including the Capped Value) are based on our internal funding rates, which may vary from the levels at which our benchmark debt securities trade in the secondary market, and the economic terms of certain related hedging arrangements. The difference between these rates, as well as the underwriting discount, the hedging-related charge and other amounts described below, will reduce the economic terms of the notes. For more information about the estimated value and the structuring of the notes, see “Structuring the Notes” below.

Terms of the Notes			Redemption Amount Determination
Issuer:	Barclays Bank PLC (“Barclays”)		On the maturity date, you will receive a cash payment per unit determined as follows:
Principal Amount:	$10.00 per unit
Term:	Approximately 14 months
Market Measure:	The Russell 2000® Index (Bloomberg symbol: “RTY”), a price return index
Starting Value:	The closing level of the Market Measure on the pricing date
Ending Value:	The average of the closing levels of the Market Measure on each calculation day occurring during the Maturity Valuation Period. The scheduled calculation days are subject to postponement in the event of Market Disruption Events, as described beginning on page PS-27 of product supplement EQUITY ARN-1.
Participation Rate:	300%
Capped Value:	[$11.55 to $11.95] per unit, which represents a return of [15.50% to 19.50%] over the principal amount. The actual Capped Value will be determined on the pricing date.
Maturity Valuation Period:	Five scheduled calculation days shortly before the maturity date
Fees and Charges:	The public offering price of the notes includes the underwriting discount of $0.175 per unit listed on the cover page and a hedging-related charge of $0.05 per unit described in “Structuring the Notes” below.
Calculation Agents:	Barclays and BofA Securities, Inc. (“BofAS”)

Accelerated Return Notes^® TS-2

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

The terms and risks of the notes are contained in this term sheet and in the following:

§ Product supplement EQUITY ARN-1 dated October 29, 2025:
http://www.sec.gov/Archives/edgar/data/312070/000095010325013808/dp236328_424b2-equityarn1.htm

§ Series A MTN prospectus supplement dated May 15, 2025:
http://www.sec.gov/Archives/edgar/data/312070/000095010325006051/dp228678_424b2-prosupp.htm

§ Prospectus dated May 15, 2025:
http://www.sec.gov/Archives/edgar/data/312070/000119312525120720/d925982d424b2.htm

These documents (together, the “Note Prospectus”) have been filed as part of a registration statement with the SEC, which may, without cost, be accessed on the SEC website as indicated above or obtained from us, Merrill Lynch, Pierce, Fenner & Smith Incorporated (“MLPF&S”) or BofAS by calling 1-800-294-1322. Before you invest, you should read the Note Prospectus, including this term sheet, and the other documents that we have filed with the SEC for information about us and this offering. Any prior or contemporaneous oral statements and any other written materials you may have received are superseded by the Note Prospectus. Capitalized terms used but not defined in this term sheet have the meanings set forth in product supplement EQUITY ARN-1. Unless otherwise indicated or unless the context requires otherwise, all references in this term sheet to “we,” “us,” “our” or similar references are to Barclays.

“Accelerated Return Notes^®” and “ARNs^®” are the registered service marks of Bank of America Corporation, the parent company of MLPF&S and BofAS.

Consent to U.K. Bail-in Power

Notwithstanding and to the exclusion of any other term of the notes or any other agreements, arrangements or understandings between us and any holder or beneficial owner of the notes (or the trustee on behalf of the holders of the notes), by acquiring the notes, each holder or beneficial owner of the notes acknowledges, accepts, agrees to be bound by, and consents to the exercise of, any U.K. Bail-in Power by the relevant U.K. resolution authority.

Under the U.K. Banking Act 2009, as amended, the relevant U.K. resolution authority may exercise a U.K. Bail-in Power in circumstances in which the relevant U.K. resolution authority is satisfied that the resolution conditions are met. These conditions include that a U.K. bank or investment firm is failing or is likely to fail to satisfy the Financial Services and Markets Act 2000 (the “FSMA”) threshold conditions for authorization to carry on certain regulated activities (within the meaning of section 55B FSMA) or, in the case of a U.K. banking group company that is a European Economic Area (“EEA”) or third country institution or investment firm, that the relevant EEA or third country relevant authority is satisfied that the resolution conditions are met in respect of that entity.

The U.K. Bail-in Power includes any write-down, conversion, transfer, modification and/or suspension power, which allows for (i) the reduction or cancellation of all, or a portion, of the principal amount of, or interest on, or any other amounts payable on, the notes; (ii) the conversion of all, or a portion, of the principal amount of, or interest on, or any other amounts payable on, the notes into shares or other securities or other obligations of Barclays or another person (and the issue to, or conferral on, the holder or beneficial owner of the notes of such shares, securities or obligations); (iii) the cancellation of the notes and/or (iv) the amendment or alteration of the maturity of the notes, or the amendment of the amount of interest or any other amounts due on the notes, or the dates on which interest or any other amounts become payable, including by suspending payment for a temporary period; which U.K. Bail-in Power may be exercised by means of a variation of the terms of the notes solely to give effect to the exercise by the relevant U.K. resolution authority of such U.K. Bail-in Power. Each holder and beneficial owner of the notes further acknowledges and agrees that the rights of the holders or beneficial owners of the notes are subject to, and will be varied, if necessary, solely to give effect to, the exercise of any U.K. Bail-in Power by the relevant U.K. resolution authority. For the avoidance of doubt, this consent and acknowledgment is not a waiver of any rights holders or beneficial owners of the notes may have at law if and to the extent that any U.K. Bail-in Power is exercised by the relevant U.K. resolution authority in breach of laws applicable in England.

For more information, please see “Risk Factors—Issuer-related Risks—You May Lose Some or All of Your Investment If Any U.K. Bail-in Power Is Exercised by the Relevant U.K. Resolution Authority” in this term sheet as well as “U.K. Bail-in Power,” “Risk Factors—Risks Relating to the Securities Generally—Regulatory action in the event a bank or investment firm in the Group is failing or likely to fail, including the exercise by the relevant U.K. resolution authority of a variety of statutory resolution powers, could materially adversely affect the value of any securities” and “Risk Factors—Risks Relating to the Securities Generally—Under the terms of the securities, you have agreed to be bound by the exercise of any U.K. Bail-in Power by the relevant U.K. resolution authority” in the accompanying prospectus supplement.

Accelerated Return Notes^® TS-3

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

Investor Considerations

You may wish to consider an investment in the notes if:
§	You anticipate that the Market Measure will increase moderately from the Starting Value to the Ending Value.
§	You are willing to risk a loss of principal and return if the Market Measure decreases from the Starting Value to the Ending Value.
§	You accept that the return on the notes will be capped.
§	You are willing to forgo the interest payments that are paid on conventional interest-bearing debt securities.
§	You are willing to forgo dividends and other benefits of directly owning the securities included in the Market Measure.
§	You are willing to accept a limited or no market for sales prior to maturity, and understand that the market prices for the notes, if any, will be affected by various factors, including our actual and perceived creditworthiness, the inclusion in the public offering price of the underwriting discount, the hedging-related charge and other amounts, as described above.
§	You are willing and able to assume our credit risk, as issuer of the notes, for all payments under the notes, including the Redemption Amount.
§	You are willing and able to consent to the exercise of any U.K. Bail-in Power by U.K. resolution authorities.

The notes may not be an appropriate investment for you if:
§	You believe that the Market Measure will decrease from the Starting Value to the Ending Value or that it will not increase sufficiently over the term of the notes to provide you with your desired return.
§	You seek principal repayment or preservation of capital.
§	You seek an uncapped return on your investment.
§	You seek interest payments or other current income on your investment.
§	You want to receive dividends or have other benefits of directly owning the securities included in the Market Measure.
§	You seek an investment for which there will be a liquid secondary market.
§	You are unwilling or unable to take market risk on the notes or to take our credit risk as issuer of the notes.
§	You are unwilling or unable to consent to the exercise of any U.K. Bail-in Power by U.K. resolution authorities.

We urge you to consult your investment, legal, tax, accounting and other advisors before you invest in the notes.

Accelerated Return Notes^® TS-4

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

Hypothetical Payout Profile and Examples of Payments at Maturity

The graph below is based on hypothetical numbers and values.

Accelerated Return Notes^®     This graph reflects the returns on the notes, based on the Participation Rate of 300% and a hypothetical Capped Value of $11.75 per unit (the midpoint of the Capped Value range of [$11.55 to $11.95]). The green line reflects the returns on the notes, while the dotted gray line reflects the returns of a direct investment in the securities included in the Market Measure, excluding dividends.   This graph has been prepared for purposes of illustration only.

The following table and examples are for purposes of illustration only. They are based on hypothetical values and show hypothetical returns on the notes. They illustrate the calculation of the Redemption Amount and total rate of return based on a hypothetical Starting Value of 100.000, the Participation Rate of 300%, a hypothetical Capped Value of $11.75 per unit and a range of hypothetical Ending Values. The actual amount you receive and the resulting total rate of return will depend on the actual Starting Value, Ending Value and Capped Value, and whether you hold the notes to maturity. The following examples do not take into account any tax consequences from investing in the notes.

For recent actual levels of the Market Measure, see “The Market Measure” section below. The Market Measure is a price return index and as such the Ending Value will not include any income generated by dividends paid on the securities included in the Market Measure, which you would otherwise be entitled to receive if you invested in those securities directly. In addition, all payments on the notes are subject to issuer credit risk.

Ending Value		Percentage Change from the Starting Value to the Ending Value		Redemption Amount per Unit		Total Rate of Return on the Notes
0.000		-100.000%		$0.00		-100.00%
50.000		-50.000%		$5.00		-50.00%
80.000		-20.000%		$8.00		-20.00%
90.000		-10.000%		$9.00		-10.00%
94.000		-6.000%		$9.40		-6.00%
97.000		-3.000%		$9.70		-3.00%
100.000(1)		0.000%		$10.00		0.00%
102.000		2.000%		$10.60		6.00%
103.000		3.000%		$10.90		9.00%
105.000		5.000%		$11.50		15.00%
105.834		5.834%		$11.75(2)		17.50%
110.000		10.000%		$11.75		17.50%
120.000		20.000%		$11.75		17.50%
150.000		50.000%		$11.75		17.50%
200.000		100.000%		$11.75		17.50%

(1) The hypothetical Starting Value of 100.000 used in these examples has been chosen for illustrative purposes only, and does not represent a likely actual Starting Value for the Market Measure.

(2) The Redemption Amount per unit cannot exceed the hypothetical Capped Value.

Accelerated Return Notes^® TS-5

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

Redemption Amount Calculation Examples:

	Example 1
	The Ending Value is 50.000, or 50.000% of the Starting Value:
	Starting Value: 100.000
	Ending Value: 50.000
			= $5.00 Redemption Amount per unit

	Example 2
	The Ending Value is 102.000, or 102.000% of the Starting Value:
	Starting Value: 100.000
	Ending Value: 102.000
			= $10.60 Redemption Amount per unit

	Example 3
	The Ending Value is 130.000, or 130.000% of the Starting Value:
	Starting Value: 100.000
	Ending Value: 130.000
			= $19.00, however, because the Redemption Amount for the notes cannot exceed the hypothetical Capped Value, the Redemption Amount will be $11.75 per unit

Accelerated Return Notes^® TS-6

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

Risk Factors

There are important differences between the notes and a conventional debt security. An investment in the notes involves significant risks, including those listed below. You should carefully review the more detailed explanation of risks relating to the notes in the “Risk Factors” sections beginning on page PS-7 of product supplement EQUITY ARN-1 and page S-9 of the Series A MTN prospectus supplement identified above. We also urge you to consult your investment, legal, tax, accounting, and other advisors before you invest in the notes.

Structure-related Risks

§ Depending on the performance of the Market Measure as measured shortly before the maturity date, your investment may result in a loss; there is no guaranteed return of principal.

§ Your return on the notes may be less than the yield you could earn by owning a conventional fixed or floating rate debt security of comparable maturity.

§ Your investment return is limited to the return represented by the Capped Value and may be less than a comparable investment directly in the securities included in the Market Measure.

Issuer-related Risks

§ Payments on the notes are subject to our credit risk, and any actual or perceived changes in our creditworthiness are expected to affect the value of the notes. If we become insolvent or are unable to pay our obligations, you may lose your entire investment.

§ You may lose some or all of your investment if any U.K. Bail-in Power is exercised by the relevant U.K. resolution authority. Notwithstanding and to the exclusion of any other term of the notes or any other agreements, arrangements or understandings between Barclays and any holder or beneficial owner of the notes (or the trustee on behalf of the holders of the notes), by acquiring the notes, each holder or beneficial owner of the notes acknowledges, accepts, agrees to be bound by, and consents to the exercise of, any U.K. Bail-in Power by the relevant U.K. resolution authority as set forth under “Consent to U.K. Bail-in Power” in this term sheet. Accordingly, any U.K. Bail-in Power may be exercised in such a manner as to result in you and other holders and beneficial owners of the notes losing all or a part of the value of your investment in the notes or receiving a different security from the notes, which may be worth significantly less than the notes and which may have significantly fewer protections than those typically afforded to debt securities. Moreover, the relevant U.K. resolution authority may exercise the U.K. Bail-in Power without providing any advance notice to, or requiring the consent of, the holders and beneficial owners of the notes. The exercise of any U.K. Bail-in Power by the relevant U.K. resolution authority with respect to the notes will not be a default or an Event of Default (as each term is defined in the senior debt securities indenture) and the trustee will not be liable for any action that the trustee takes, or abstains from taking, in either case, in accordance with the exercise of the U.K. Bail-in Power by the relevant U.K. resolution authority with respect to the notes. See “Consent to U.K. Bail-in Power” in this term sheet as well as “U.K. Bail-in Power,” “Risk Factors—Risks Relating to the Securities Generally—Regulatory action in the event a bank or investment firm in the Group is failing or likely to fail, including the exercise by the relevant U.K. resolution authority of a variety of statutory resolution powers, could materially adversely affect the value of any securities” and “Risk Factors—Risks Relating to the Securities Generally—Under the terms of the securities, you have agreed to be bound by the exercise of any U.K. Bail-in Power by the relevant U.K. resolution authority” in the accompanying prospectus supplement.

Valuation- and Market-related Risks

§ The estimated value of your notes is based on our internal pricing models. Our internal pricing models take into account a number of variables and are based on a number of subjective assumptions, which may or may not materialize, typically including volatility, interest rates, and our internal funding rates. These variables and assumptions are not evaluated or verified on an independent basis and may prove to be inaccurate. Different pricing models and assumptions of different financial institutions could provide valuations for the notes that are different from our estimated value.

§ The estimated value is based on a number of variables, including volatility, interest rates and our internal funding rates. Our internal funding rates may vary from the levels at which our benchmark debt securities trade in the secondary market. As a result of this difference, the estimated value referenced in this term sheet may be lower if such estimated value was based on the levels at which our benchmark debt securities trade in the secondary market.

§ The estimated value of your notes is expected to be lower than the public offering price of your notes. This difference is expected as a result of certain factors, such as the inclusion in the public offering price of the underwriting discount, the hedging-related charge, the estimated profit, if any, that we or any of our affiliates expect to earn in connection with structuring the notes, and the estimated cost which we may incur in hedging our obligations under the notes, as further described in “Structuring the Notes” below. If you attempt to sell the notes prior to maturity, their market value may be lower than the price you paid for the notes and lower than the estimated value because the secondary market prices take into consideration the levels at which our debt securities trade in the secondary market, but do not take into account such fees, charges and other amounts.

§ The estimated value of the notes will not be a prediction of the prices at which MLPF&S, BofAS or its affiliates, or any of our affiliates or any other third parties may be willing to purchase the notes from you in secondary market transactions. The price at which you may be able to sell your notes in the secondary market at any time will be influenced by many factors that cannot

Accelerated Return Notes^® TS-7

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

be predicted, such as market conditions, and any bid and ask spread for similar size trades, and may be substantially less than our estimated value of the notes. Any sale prior to the maturity date could result in a substantial loss to you.

§ A trading market is not expected to develop for the notes. None of us, MLPF&S, BofAS or our respective affiliates is obligated to make a market for, or to repurchase, the notes. There is no assurance that any party will be willing to purchase your notes at any price in any secondary market.

Conflict-related Risks

§ Our business, hedging and trading activities, and those of MLPF&S, BofAS and our respective affiliates (including trades in the securities included in the Market Measure), and any hedging and trading activities we, MLPF&S, BofAS or our respective affiliates engage in for our clients’ accounts, may affect the market value and return of the notes and may create conflicts of interest with you.

§ There may be potential conflicts of interest involving the calculation agents, which are Barclays and BofAS. We have the right to appoint and remove the calculation agents.

Market Measure-related Risks

§ The Market Measure sponsor may adjust the Market Measure in a way that affects its level, and has no obligation to consider your interests.

§ You will have no rights of a holder of the securities included in the Market Measure, and you will not be entitled to receive securities or dividends or other distributions by the issuers of those securities.

§ While we, MLPF&S, BofAS or our respective affiliates may from time to time own the securities included in the Market Measure, we, MLPF&S, BofAS and our respective affiliates do not control the issuers of those securities, and have not verified any disclosure made by any other company.

Tax-related Risks

§ The U.S. federal income tax consequences of an investment in the notes are uncertain. There is no direct legal authority regarding the proper U.S. federal income tax treatment of the notes, and we do not plan to request a ruling from the Internal Revenue Service (the “IRS”). Consequently, significant aspects of the tax treatment of the notes are uncertain, and the IRS or a court might not agree with the treatment of the notes as prepaid forward contracts, as described below under “Tax Consequences.” If the IRS were successful in asserting an alternative treatment for the notes, the tax consequences of the ownership and disposition of the notes could be materially and adversely affected.

In addition, in 2007 the Treasury Department and the IRS released a notice requesting comments on various issues regarding the U.S. federal income tax treatment of “prepaid forward contracts” and similar instruments. Any Treasury regulations or other guidance promulgated after consideration of these issues could materially and adversely affect the tax consequences of an investment in the notes, possibly with retroactive effect. You should review carefully the sections of the accompanying prospectus supplement entitled “Material U.S. Federal Income Tax Consequences—Tax Consequences to U.S. Holders—Notes Treated as Prepaid Forward Contracts” and, if you are a non-U.S. holder, “—Tax Consequences to Non-U.S. Holders,” and consult your tax advisor regarding the U.S. federal tax consequences of an investment in the notes (including possible alternative treatments and the issues presented by the 2007 notice), as well as tax consequences arising under the laws of any state, local or non-U.S. taxing jurisdiction.

Additional Risk Factors

The notes are subject to small-capitalization companies risk with respect to the Market Measure. The Market Measure tracks companies that are considered small-capitalization companies. These companies often have greater stock price volatility, lower trading volume and less liquidity than large-capitalization companies, and therefore notes linked to the Market Measure may be more volatile than an investment linked to an index with component stocks issued by large-capitalization companies. Stock prices of small-capitalization companies are also more vulnerable than those of large-capitalization companies to adverse business and economic developments. In addition, small-capitalization companies are typically less stable financially than large-capitalization companies and may depend on a small number of key personnel, making them more vulnerable to loss of personnel. Small-capitalization companies are often subject to less analyst coverage and may be in early, and less predictable, periods of their corporate existences. Such companies tend to have smaller revenues, less diverse product lines, smaller shares of their product or service markets, fewer financial resources and less competitive strengths than large-capitalization companies and are more susceptible to adverse developments related to their products.

Accelerated Return Notes^® TS-8

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

The Market Measure

All information contained in this term sheet regarding the Market Measure, including, without limitation, its make-up, method of calculation and changes in its components, has been derived from publicly available information, without independent verification. This information reflects the policies of, and is subject to change by, FTSE Russell (the “Market Measure sponsor”), which is a wholly owned subsidiary of the London Stock Exchange Group plc. The Market Measure is calculated, maintained and published by FTSE Russell. The Market Measure sponsor, which licenses the copyright and all other rights to the Market Measure, has no obligation to continue to publish the Market Measure and may discontinue publication of the Market Measure at any time. The consequences of the Market Measure sponsor discontinuing publication of the Market Measure are discussed in the section entitled “Description of the ARNs—Discontinuance of an Index” in product supplement EQUITY ARN-1. None of us, the calculation agents, MLPF&S or BofAS accepts any responsibility for the calculation, maintenance or publication of the Market Measure or any successor. Neither we nor any agent has independently verified the accuracy or completeness of any information with respect to the Market Measure in connection with the offer and sale of the notes.

The Market Measure measures the capitalization-weighted price performance of 2,000 U.S. small-capitalization stocks listed on eligible U.S. exchanges and is designed to track the performance of the small-capitalization segment of the U.S. equity market. The companies included in the Market Measure are the middle 2,000 of the companies that form the Russell 3000E™ Index, which is composed of the 4,000 largest U.S. companies as determined by total market capitalization and represents approximately 99% of the U.S. equity market. The Market Measure is reported by Bloomberg L.P. under the ticker symbol “RTY.”

Selection of Stocks Underlying the Market Measure

The Market Measure is a sub-index of the Russell 3000E™ Index. To be eligible for inclusion in the Russell 3000E™ Index and, consequently, the Market Measure, a company must meet the following criteria as of the rank day in April (except that initial public offerings (“IPOs”) are generally considered for inclusion on a quarterly basis):

· U.S. Equity Market. The company must be determined to be part of the U.S. equity market, meaning that its home country is the United States. If a company incorporates in, has a stated headquarters location in, and also trades in the same country (American Depositary Receipts and American Depositary Shares are not eligible), the company is assigned to its country of incorporation.

If any of the three criteria do not match, FTSE Russell then defines three Home Country Indicators (“HCIs”): country of incorporation, country of headquarters and country of the most liquid exchange as defined by two-year average daily dollar trading volume from all exchanges within a country. After the HCIs are defined, the next step in the country assignment involves an analysis of assets by location. FTSE Russell cross-compares the primary location of the company’s assets with the three HCIs. If the primary location of assets matches any of the HCIs, then the company is assigned to its primary asset location.

If there is not enough information to determine a company’s primary location of assets, FTSE Russell uses the primary location of the company’s revenue for the same cross-comparison and assigns the company to the appropriate country in a similar fashion. FTSE Russell uses an average of two years of assets or revenue data for analysis to reduce potential turnover.

If conclusive country details cannot be derived from assets or revenue, FTSE Russell assigns the company to the country in which its headquarters are located unless the country is a Benefit Driven Incorporation (“BDI”) country. If the country in which its headquarters are located is a BDI country, the company is assigned to the country of its most liquid stock exchange. The BDI countries are Anguilla, Antigua and Barbuda, Aruba, 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.

If a company is designated as a Chinese “N Share,” it will not be considered for inclusion within the Market Measure. An N Share is a company incorporated outside of mainland China that trades on the New York Stock Exchange, The Nasdaq Stock Market or NYSE American. An N Share will have a headquarters or principal executive office or its establishment in mainland China, with the majority of its revenue or assets derived from mainland China.

· U.S. Eligible Exchange. The following exchanges and markets are deemed to be eligible U.S. exchanges: the Chicago Board Options Exchange, the New York Stock Exchange, NYSE American, The Nasdaq Stock Market and NYSE Arca. Stocks that are not traded on an eligible U.S. exchange (Bulletin Board, Pink Sheet and over-the-counter securities, including securities for which prices are displayed on the FINRA Alternative Display Facility) are not eligible for inclusion.

· Minimum Closing Price. A stock must have a close price at or above $1.00 (on its primary exchange), subject to exceptions to reduce turnover.

· Minimum Total Market Capitalization. Companies with a total market capitalization less than $30 million are not eligible for inclusion.

· Minimum Free Float. Companies with less than 5% of their shares available in the marketplace are not eligible for inclusion.

Accelerated Return Notes^® TS-9

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

· Company Structure. Companies structured in the following ways are not eligible for inclusion: royalty trusts, U.S. limited liability companies, closed-end investment companies, business development companies (and other companies that are required to report Acquired Fund Fees and Expenses, as defined by the SEC), blank-check companies, special-purpose acquisition companies, limited partnerships, exchange-traded funds and mutual funds.

· UBTI. Real estate investment trusts and publicly traded partnerships that generate or have historically generated unrelated business taxable income (“UBTI”) and have not taken steps to block UBTI to equity holders are not eligible for inclusion. Information used to confirm UBTI impact includes the following publicly available sources: 10-K, SEC Form S-3, K-1, company annual report, dividend notices or company website.

· Security Types. The following types of securities are not eligible for inclusion: preferred and convertible preferred stock, redeemable shares, participating preferred stock, warrants, rights, depositary receipts, installment receipts and trust receipts.

· Minimum Voting Rights. Companies are required to have greater than 5% of the company’s voting rights (aggregated across all of its equity securities, including, where identifiable, those that are not listed or trading) in the hands of unrestricted shareholders in order to be eligible for index inclusion. Shares referenced as “non-voting” or providing legally minimum rights only will be viewed as having no voting power as it relates to the minimum voting rights review.

· Multiple Share Classes. If an eligible company trades under multiple share classes, each share class is reviewed independently for eligibility for inclusion. Share classes in addition to the primary share class must meet the following minimum size, liquidity and float requirements to be eligible: (i) total market cap must be larger than $30 million; (ii) average daily dollar trading value must exceed that of the global median; and (iii) more than 5% of shares must be available in the marketplace.

Securities of eligible companies are included in the Market Measure based on total market capitalization. Total market capitalization is determined by multiplying total outstanding shares by the market price (generally, the last price traded on the primary exchange of the share class with the highest two-year trading volume, subject to exceptions) as of the rank day in April (except that IPOs are generally considered for inclusion on a quarterly basis). Common stock, non-restricted exchangeable shares and partnership units/membership interests (but not operating partnership units of umbrella partnership real estate investment trusts) are used to calculate a company’s total market capitalization. If multiple share classes of common stock exist, they are combined to determine total shares outstanding; however, in cases where the common stock share classes act independently of each other (e.g., tracking stocks), each class is considered for inclusion separately. For merger and spin-off transactions that are effective between rank day in April and the business day immediately before the index lock-down takes effect ahead of the annual reconstitution in June, the market capitalizations of the impacted securities are recalculated and membership is re-evaluated as of the effective date of the corporate action.

The 4,000 securities with the greater total market capitalization become members of the Russell 3000E™ Index. The Market Measure is a subset of the Russell 3000E™ Index. Market capitalization breakpoints for the Market Measure are determined by the break between the companies ranked #1,001 through #3,000 (based on descending total market capitalization). New members are assigned on the basis of the breakpoints, and existing members are reviewed to determine if they fall within a cumulative 5% market cap range around these new market capitalization breakpoints. If an existing member’s market cap falls within this cumulative 5% of the market capitalization breakpoint, it will remain in the Market Measure rather than be moved to a different Russell index.

After membership is determined, a security’s shares are adjusted to include only those shares available to the public (“free float”). The purpose of this adjustment is to exclude from market calculations the capitalization that is not available for purchase and is not part of the investable opportunity set. Stocks in the Market Measure are weighted by their available (also called float-adjusted) market capitalization.

Reconstitution occurs on the fourth Friday in June. A full calendar for reconstitution is published each spring, with such reconstitution schedule governed by FTSE Russell guidelines.

Corporate Actions and Events Affecting the Market Measure

FTSE Russell applies corporate actions to the Market Measure on a daily basis. FTSE Russell applies the following methodology guidelines, among others, when adjusting the Market Measure in response to corporate actions:

“No Replacement” Rule. Securities that leave the Market Measure for any reason (e.g., mergers, acquisitions or other similar corporate activity) are not replaced. Thus, the number of securities in the Market Measure over a year will fluctuate according to corporate activity.

Statement of Principles and Adjustments for Specific Corporate Events. FTSE Russell has stated as general principles that the treatment of corporate events (a) should reflect how such events are likely to be dealt with in investment portfolios to maintain the portfolio structure in line with the target set out in the index objective and index methodology and (b) should normally be designed to minimize the trading activity required by investors to match the index performance. No assurance can be provided that corporate actions and events will be treated by FTSE Russell in a manner consistent with its statement of general principles.

In addition, FTSE Russell has established guidance for the treatment of corporate actions and events, including, but not limited to, dividends, capital repayments, companies converting to a REIT structure, share buybacks, rights issues, mergers, acquisitions, tender offers, split-offs, spin-offs, bankruptcies, insolvencies, liquidations and trading suspensions. However, because of the complexities involved in some cases, those guidelines are not definitive rules that will determine FTSE Russell’s actions in all circumstances. FTSE

Accelerated Return Notes^® TS-10

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

Russell reserves the right to determine the most appropriate method of implementation for any corporate event which is not covered by those guidelines or which is of a complex nature.

Changes to Shares Outstanding and Free Float. The Market Measure will be reviewed quarterly for updates to shares outstanding and to free floats used within the calculation of the Market Measure. In March, September and December, shares outstanding and free float will be updated to reflect cumulative share changes greater than 1%, cumulative free float changes greater than 1% for constituents with a free float greater than 5% but less than or equal to 15% and cumulative free float changes greater than 3% for constituents with a free float greater than 15%. In June, the shares and free float updates will be implemented regardless of size. Shares and free float updates can be triggered in some cases by certain events, such as some primary or secondary offerings.

Accelerated Return Notes^® TS-11

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

The following graph shows the daily historical performance of the Market Measure in the period from January 1, 2015 through October 28, 2025. 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. On October 28, 2025, the closing level of the Market Measure was 2,506.650.

Historical Performance of the Market Measure

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

Before investing in the notes, you should consult publicly available sources for the levels of the Market Measure.

License Agreement

Barclays Bank PLC has entered into a non-exclusive license agreement with FTSE Russell whereby we, in exchange for a fee, are permitted to use the Market Measure and its related trademarks in connection with certain securities, including the notes. We are not affiliated with FTSE Russell; the only relationship between FTSE Russell and us is any licensing of the use of FTSE Russell’s indices and trademarks relating to them.

“Russell 2000^® Index” and “Russell 3000E™ Index” are trademarks of FTSE Russell and have been licensed for use by Barclays Bank PLC. 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.

The notes are not sponsored, endorsed, sold or promoted by FTSE Russell. FTSE Russell makes no representation or warranty, express or implied, to the owners 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 Market Measure to track general stock market performance or a segment of the same. FTSE Russell’s publication of the Market Measure 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 Market Measure is based. FTSE Russell’s only relationship to Barclays Bank PLC and its affiliates is the licensing of certain trademarks and trade names of FTSE Russell and of the Market Measure, which is determined, composed and calculated by FTSE Russell without regard to Barclays Bank PLC and its affiliates 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 Market Measure. 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 MARKET MEASURE OR ANY DATA INCLUDED THEREIN AND FTSE RUSSELL SHALL HAVE NO LIABILITY FOR ANY OMISSIONS, OR INTERRUPTIONS THEREIN. FTSE RUSSELL MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE OBTAINED BY BARCLAYS BANK PLC AND/OR ITS AFFILIATES, INVESTORS, OWNERS OF THE NOTES, OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE MARKET MEASURE OR ANY DATA INCLUDED THEREIN. FTSE RUSSELL

Accelerated Return Notes^® TS-12

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

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 MARKET MEASURE 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.

Accelerated Return Notes^® TS-13

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

Supplement to the Plan of Distribution

Under our distribution agreement with BofAS, BofAS will purchase the notes from us as principal at the public offering price indicated on the cover of this term sheet, less the indicated underwriting discount.

BofAS has advised us that MLPF&S will purchase the notes from BofAS for resale, and will receive a selling concession in connection with the sale of the notes in an amount up to the full amount of underwriting discount set forth on the cover of this term sheet.

We will pay a fee to LFT Securities, LLC for providing certain electronic platform services with respect to this offering, which reduces the economic terms of the notes to you. An affiliate of BofAS has an ownership interest in LFT Securities, LLC.

We may deliver the notes against payment therefor in New York, New York on a date that is greater than one business day following the pricing date. Under Rule 15c6-1 of the Securities Exchange Act of 1934, trades in the secondary market generally are required to settle in one business day, unless the parties to any such trade expressly agree otherwise. Accordingly, if the initial settlement of the notes occurs more than one business day from the pricing date, purchasers who wish to trade the notes more than one business day prior to the original issue date will be required to specify alternative settlement arrangements to prevent a failed settlement.

The notes will not be listed on any securities exchange. In the original offering of the notes, the notes will be sold in minimum investment amounts of 100 units. If you place an order to purchase the notes, you are consenting to MLPF&S and/or one of its affiliates acting as a principal in effecting the transaction for your account.

MLPF&S and BofAS may repurchase and resell the notes, with repurchases and resales being made at prices related to then-prevailing market prices or at negotiated prices, and these prices will include MLPF&S’s and BofAS’s trading commissions and mark-ups or mark-downs. MLPF&S and BofAS may act as principal or agent in these market-making transactions; however, neither is obligated to engage in any such transactions. BofAS has advised us that, at MLPF&S’s and BofAS’s discretion, for a short, undetermined initial period after the issuance of the notes, MLPF&S and BofAS may offer to buy the notes in the secondary market at a price that may exceed the initial estimated value of the notes. Any price offered by MLPF&S or BofAS for the notes will be based on then-prevailing market conditions and other considerations, including the performance of the Market Measure, the remaining term of the notes and our creditworthiness. However, none of us, MLPF&S, BofAS or any of our respective affiliates is obligated to purchase your notes at any price or at any time, and we cannot assure you that we, MLPF&S, BofAS or any of our respective affiliates will purchase your notes at a price that equals or exceeds the initial estimated value of the notes.

The value of the notes shown on your account statement produced by MLPF&S will be based on BofAS’s estimate of the value of the notes if BofAS or another of its affiliates were to make a market in the notes, which it is not obligated to do. That estimate will be based upon the price that BofAS may pay for the notes in light of then-prevailing market conditions and other considerations, as mentioned above, and will include transaction costs. At certain times, this price may be higher than or lower than the initial estimated value of the notes.

The distribution of the Note Prospectus in connection with these offers or sales will be solely for the purpose of providing investors with the description of the terms of the notes that was made available to investors in connection with their initial offering. Secondary market investors should not, and will not be authorized to, rely on the Note Prospectus for information regarding Barclays or for any purpose other than that described in the immediately preceding sentence.

An investor’s household, as referenced on the cover of this term sheet, will generally include accounts held by any of the following, as determined by MLPF&S in its discretion and acting in good faith based upon information then available to MLPF&S:

· the investor’s spouse (including a domestic partner), siblings, parents, grandparents, spouse’s parents, children and grandchildren, but excluding accounts held by aunts, uncles, cousins, nieces, nephews or any other family relationship not directly above or below the individual investor;

· a family investment vehicle, including foundations, limited partnerships and personal holding companies, but only if the beneficial owners of the vehicle consist solely of the investor or members of the investor’s household as described above; and

· a trust where the grantors and/or beneficiaries of the trust consist solely of the investor or members of the investor’s household as described above; provided that, purchases of the notes by a trust generally cannot be aggregated together with any purchases made by a trustee’s personal account.

Purchases in retirement accounts will not be considered part of the same household as an individual investor’s personal or other non-retirement account, except for individual retirement accounts (“IRAs”), simplified employee pension plans (“SEPs”), savings incentive match plan for employees (“SIMPLEs”) and single-participant or owners only accounts (i.e., retirement accounts held by self-employed individuals, business owners or partners with no employees other than their spouses).

Please contact your MLPF&S financial advisor if you have any questions about the application of these provisions to your specific circumstances or think you are eligible.

Accelerated Return Notes^® TS-14

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

Structuring the Notes

The notes are our debt securities, the return on which is linked to the performance of the Market Measure. As is the case for all of our debt securities, including our market-linked notes, the economic terms of the notes reflect our actual or perceived creditworthiness at the time of pricing. The economic terms of the notes are based on our internal funding rates, which are our internally published borrowing rates based on variables such as market benchmarks, our appetite for borrowing and our existing obligations coming to maturity. Our internal funding rates may vary from the levels at which our benchmark debt securities trade in the secondary market. Our estimated value on the pricing date will be based on our internal funding rates. Our estimated value of the notes may be lower if such valuation were based on the levels at which our benchmark debt securities trade in the secondary market.

At maturity, we are required to pay the Redemption Amount to holders of the notes, which will be calculated based on the $10 per unit principal amount and will depend on the performance of the Market Measure. In order to meet these payment obligations, at the time we issue the notes, we may choose to enter into certain hedging arrangements (which may include call options, put options or other derivatives) with BofAS or one of its affiliates. The terms of these hedging arrangements are determined by seeking bids from market participants, including MLPF&S, BofAS and their or our affiliates, and take into account a number of factors, including our creditworthiness, interest rate movements, the volatility of the Market Measure, the tenor of the notes and the tenor of the hedging arrangements. The economic terms of the notes and their initial estimated value depend in part on the terms of these hedging arrangements, any estimated profit that we or any of our affiliates expect to earn in connection with structuring the notes and estimated costs which we may incur in hedging our obligations under the notes.

BofAS has advised us that the hedging arrangements will include a hedging-related charge of approximately $0.05 per unit, reflecting an estimated profit to be credited to BofAS from these transactions. Since hedging entails risk and may be influenced by unpredictable market forces, additional profits and losses from these hedging arrangements may be realized by us, BofAS or any third party hedge providers.

For further information, see “Risk Factors—Valuation- and Market-related Risks” beginning on page PS-9 and “Use of Proceeds and Hedging” on page PS-23 of product supplement EQUITY ARN-1.

Accelerated Return Notes^® TS-15

Accelerated Return Notes^®

Linked to the Russell 2000^® Index, due January    , 2027

Tax Consequences

You should review carefully the sections in the accompanying prospectus supplement entitled “Material U.S. Federal Income Tax Consequences—Tax Consequences to U.S. Holders—Notes Treated as Prepaid Forward Contracts” and, if you are a non-U.S. holder, “—Tax Consequences to Non-U.S. Holders.” The following discussion, when read in combination with those sections, constitutes the full opinion of our special tax counsel, Davis Polk & Wardwell LLP, regarding the material U.S. federal income tax consequences of owning and disposing of the notes.

Based on current market conditions, in the opinion of our special tax counsel, it is reasonable to treat the notes for U.S. federal income tax purposes as prepaid forward contracts with respect to the Market Measure. Assuming this treatment is respected, upon a sale or exchange of the notes (including redemption at maturity), you should recognize capital gain or loss equal to the difference between the amount realized on the sale or exchange and your tax basis in the notes, which should equal the amount you paid to acquire the notes. This gain or loss on your notes should be treated as long-term capital gain or loss if you hold your notes for more than a year, whether or not you are an initial purchaser of notes at the original issue price. However, the IRS or a court may not respect this treatment, in which case the timing and character of any income or loss on the notes could be materially and adversely affected. In addition, in 2007 the U.S. Treasury Department and the IRS released a notice requesting comments on the U.S. federal income tax treatment of “prepaid forward contracts” and similar instruments. The notice focuses in particular on whether to require investors in these instruments to accrue income over the term of their investment. It also asks for comments on a number of related topics, including the character of income or loss with respect to these instruments; the relevance of factors such as the nature of the underlying property to which the instruments are linked; the degree, if any, to which income (including any mandated accruals) realized by non-U.S. investors should be subject to withholding tax; and whether these instruments are or should be subject to the “constructive ownership” regime, which very generally can operate to recharacterize certain long-term capital gain as ordinary income and impose a notional interest charge. While the notice requests comments on appropriate transition rules and effective dates, any Treasury regulations or other guidance promulgated after consideration of these issues could materially and adversely affect the tax consequences of an investment in the notes, possibly with retroactive effect. You should consult your tax advisor regarding the U.S. federal income tax consequences of an investment in the notes, including possible alternative treatments and the issues presented by this notice.

Treasury regulations under Section 871(m) generally impose a withholding tax on certain “dividend equivalents” under certain “equity linked instruments.” A recent IRS notice excludes from the scope of Section 871(m) instruments issued prior to January 1, 2027 that do not have a “delta of one” with respect to underlying securities that could pay U.S.-source dividends for U.S. federal income tax purposes (each an “Underlying Security”). Based on our determination that the notes do not have a “delta of one” within the meaning of the regulations, we expect that these regulations will not apply to the notes with regard to non-U.S. holders. Our determination is not binding on the IRS, and the IRS may disagree with this determination. Section 871(m) is complex and its application may depend on your particular circumstances, including whether you enter into other transactions with respect to an Underlying Security. If necessary, further information regarding the potential application of Section 871(m) will be provided in the final term sheet for the notes. You should consult your tax advisor regarding the potential application of Section 871(m) to the notes.

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FAQ

What is Barclays (ATMP) offering in this 424B2 filing?

Accelerated Return Notes linked to the Russell 2000 Index, unsecured debt maturing in January 2027 with a $10 principal per unit and a 300% participation rate.

What are the key payout terms for the Barclays ARNs (ATMP)?

Upside is leveraged at 300% and capped at a Capped Value of $11.55–$11.95 per unit; principal is at risk if the index ends below the Starting Value.

How do price and fees break down for the Barclays notes (ATMP)?

Public offering price is $10.00 per unit, including a $0.175 underwriting discount and a $0.05 hedging-related charge; proceeds to Barclays are $9.825 per unit before expenses.

What is the initial estimated value of the Barclays notes (ATMP)?

Barclays expects an initial estimated value between $9.217 and $9.717 per unit on the pricing date.

When do the Barclays ARNs (ATMP) price, settle, and mature?

Indicative dates: pricing in November 2025, settlement in December 2025, and maturity in January 2027, with a five-day maturity valuation period.

Are the Barclays notes (ATMP) insured or exchange-listed?

They are not FDIC insured or U.K. scheme protected, and will not be listed on any securities exchange.

What special risk applies to these Barclays notes (ATMP)?

All payments are subject to Barclays’ credit risk and the risk of exercise of any U.K. Bail-in Power by the relevant U.K. resolution authority.