The information in this preliminary pricing supplement is not complete and may be changed. This preliminary pricing supplement and the accompanying prospectus, prospectus supplement and underlying supplement do not constitute an offer to sell the Notes,and we are not soliciting an offer to buy the Notes in any state where the offer or sale is not permitted.

Subject to Completion

Preliminary Pricing Supplement dated May 7, 2020

Preliminary Pricing Supplement (To the Prospectus dated August 1, 2019, the Prospectus Supplement dated August 1, 2019 and the Underlying Supplement dated August 1, 2019) Filed Pursuant to Rule 424(b)(2) Registration No. 333–232144

$[•] Buffered SuperTrackSM Notes due November 18, 2021 Linked to the Performance of the SPDR® S&P MidCap 400® ETF Trust Global Medium-Term Notes, Series A

Terms used in this pricing supplement, but not defined herein, shall have the meanings ascribed to them in the prospectus supplement.

Issuer:	Barclays Bank PLC
Denominations:	Minimum denomination of $1,000, and integral multiples of $1,000 in excess thereof
Initial Valuation Date:	May 15, 2020
Issue Date:	May 20, 2020
Final Valuation Date:*	November 15, 2021
Maturity Date:*	November 18, 2021
Reference Asset:	The  SPDR® S&P MidCap 400® ETF Trust (Bloomberg ticker symbol “MDY UP <Equity>”)
Buffer Percentage:	10.00%
Upside Leverage Factor:	1.50
Maximum Return:**	26.40%
Payment at Maturity:	If you hold the Notes to maturity, you will receive on the Maturity Date a cash payment per $1,000 principal amount Note that you hold determined as follows: §If the Final Value of the Reference Asset is greater than or equal to the Initial Value, you will receive an amount per $1,000 principal amount Note calculated as follows: $1,000 + [$1,000 × lesser of (a) Reference Asset Return × Upside Leverage Factor and (b) Maximum Return] Assuming the Maximum Return is set at 26.40%, if the Reference Asset Return is 17.60% or more, you will receive a payment at maturity of $1,264.00 per principal amount Note that you hold. §If the Final Value is less than the Initial Value, but greater than or equal to Buffer Value, you will receive a payment of $1,000 per $1,000 principal amount Note §If the Final Value is less than Buffer Value, you will receive an amount per $1,000 principal amount Note calculated as follows: $1,000 + [$1,000 × (Reference Asset Return + Buffer Percentage)] If the Final Value is less than the Buffer Value, you will lose 1.00% of the principal amount of your Notes for every 1.00% that the Reference Asset Return falls below -10.00%. You may lose up to 90.00% of the principal amount of the Notes at maturity. Any payment on the Notes is not guaranteed by any third party and is subject to (a) the creditworthiness of Barclays Bank PLC and (b) the risk of exercise of any U.K. Bail-in Power (as described on page PS–2 of this pricing supplement) by the relevant U.K. resolution authority. If Barclays Bank PLC were to default on its payment obligations or become subject to the exercise of any U.K. Bail-in Power (or any other resolution measure) by the relevant U.K. resolution authority, you might not receive any amounts owed to you under the Notes. See “Consent to U.K. Bail-in Power” and “Selected Risk Considerations” in this pricing supplement and “Risk Factors” in the accompanying prospectus supplement for more information.
Initial Value:	[·], the Closing Value of the Reference Asset on the Initial Valuation Date
Buffer Value:	[·], 90.00% of the Initial Value (rounded to two decimal places)
Final Value:	The Closing Value of the Reference Asset on the Final Valuation Date
Reference Asset Return:	The performance of the Reference Asset from the Initial Value to the Final Value, calculated as follows: Final Value – Initial Value Initial Value
Consent to U.K. Bail-in Power:	Notwithstanding any other agreements, arrangements or understandings between Barclays Bank PLC and any holder or beneficial owner of the Notes, by acquiring the Notes, each holder and 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. See “Consent to U.K. Bail-in Power” on page PS–2 of this pricing supplement.

[Terms of the Notes Continue on the Next Page]

	Initial Issue Price(1)	Price to Public	Agent’s Commission(2)	Proceeds to Barclays Bank PLC
Per Note	$1,000	100%	0.00%	100.00%
Total	$[·]	$[·]	$[·]	$[·]

(1)Our estimated value of the Notes on the Initial Valuation Date, based on our internal pricing models, is expected to be between $948.30 and $978.30 per Note. The estimated value is expected to be less than the initial issue price of the Notes. See “Additional Information Regarding Our Estimated Value of the Notes” on page PS–3 of this pricing supplement.

(2)Investors that hold their Notes in fee-based advisory or trust accounts may be charged fees by the investment advisor or manager of such account based on the amount of assets held in those accounts, including the Notes.

Investing in the Notes involves a number of risks. See “Risk Factors” beginning on page S–7 of the prospectus supplement and “Selected Risk Considerations” beginning on page PS–7 of this pricing supplement.

The Notes will not be listed on any U.S. securities exchange or quotation system. Neither the U.S. Securities and Exchange Commission (the “SEC”) nor any state securities commission has approved or disapproved of these Notes or determined that this pricing supplement is truthful or complete. Any representation to the contrary is a criminal offense.

The Notes constitute our unsecured and unsubordinated obligations. The Notes are not deposit liabilities of Barclays Bank PLC and 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.

Terms of the Notes, Continued

Closing Value:	The term “Closing Value” means the closing level of the Reference Asset, as further described under “Reference Assets— Exchange-Traded Funds —Special Calculation Provisions” in the prospectus supplement
Calculation Agent:	Barclays Bank PLC
CUSIP / ISIN:	06747PST7 / US06747PST74

*Subject to postponement, as described under “Additional Terms of the Notes” in this pricing supplement

**The actual Maximum Return will be determined on the Initial Valuation Date and will not be less than 26.40%

ADDITIONAL DOCUMENTS RELATED TO THE OFFERING OF THE NOTES

You should read this pricing supplement together with the prospectus dated August 1, 2019, as supplemented by the documents listed below, relating to our Global Medium-Term Notes, Series A, of which these Notes are a part. This pricing supplement, together with the documents listed below, contains the terms of the Notes and supersedes all prior or contemporaneous oral statements as well as any other written materials including preliminary or indicative pricing terms, correspondence, trade ideas, structures for implementation, sample structures, brochures or other educational materials of ours. You should carefully consider, among other things, the matters set forth under “Risk Factors” in the prospectus supplement and “Selected Risk Considerations” in this pricing supplement, as the Notes involve risks not associated with conventional debt securities. We urge you to consult your investment, legal, tax, accounting and other advisors before you invest in the Notes.

You may access these documents on the SEC website at www.sec.gov as follows (or if such address has changed, by reviewing our filings for the relevant date on the SEC website):

·Prospectus dated August 1, 2019:

http://www.sec.gov/Archives/edgar/data/312070/000119312519210880/d756086d424b3.htm

·Prospectus Supplement dated August 1, 2019:

http://www.sec.gov/Archives/edgar/data/312070/000095010319010190/dp110493_424b2-prosupp.htm

·Underlying Supplement dated August 1, 2019:

http://www.sec.gov/Archives/edgar/data/312070/000095010319010191/dp110497_424b2-underlying.htm

Our SEC file number is 1–10257. As used in this pricing supplement, “we,” “us” or “our” refers to Barclays Bank PLC.

PS-1

CONSENT TO U.K. BAIL-IN POWER

Notwithstanding any other agreements, arrangements or understandings between us and any holder or beneficial owner of the Notes, by acquiring the Notes, each holder and 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, interest on, or any other amounts payable on, the Notes; (ii) the conversion of all, or a portion, of the principal amount of, interest on, or any other amounts payable on, the Notes into shares or other securities or other obligations of Barclays Bank PLC or another person (and the issue to, or conferral on, the holder or beneficial owner of the Notes such shares, securities or obligations); and/or (iii) the amendment or alteration of the maturity of the Notes, or 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 “Selected Risk Considerations—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 pricing supplement 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 could materially adversely affect the value of the 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.

PS-2

ADDITIONAL INFORMATION REGARDING OUR ESTIMATED VALUE OF THE NOTES

The range of the estimated values of the Notes referenced above may not correlate on a linear basis with the range of any other term of the Notes as may be set forth in this pricing supplement. We determined the size of such range based on prevailing market conditions, as well as the anticipated duration of the marketing period for the Notes. The final terms for the Notes will be determined on the date the Notes are initially priced for sale to the public, which we refer to as the Initial Valuation Date, based on prevailing market conditions on or prior to the Initial Valuation Date, and will be communicated to investors either orally or in a final pricing supplement.

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. 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) may vary from the levels at which our benchmark debt securities trade in the secondary market. Our estimated value on the Initial Valuation Date is 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.

Our estimated value of the Notes on the Initial Valuation Date is expected to be less than the initial issue price of the Notes. The difference between the initial issue price of the Notes and our estimated value of the Notes is a result of several factors, including any sales commissions to be paid to Barclays Capital Inc. or another affiliate of ours, any selling concessions, discounts, commissions or fees (including any structuring or other distribution related fees) to be allowed or paid to non-affiliated intermediaries, the estimated profit that we or any of our affiliates expect to earn in connection with structuring the Notes, the estimated cost which we may incur in hedging our obligations under the Notes, and estimated development and other costs which we may incur in connection with the Notes.

Our estimated value on the Initial Valuation Date is not a prediction of the price at which the Notes may trade in the secondary market, nor will it be the price at which Barclays Capital Inc. may buy or sell the Notes in the secondary market. Subject to normal market and funding conditions, Barclays Capital Inc. or another affiliate of ours intends to offer to purchase the Notes in the secondary market but it is not obligated to do so.

Assuming that all relevant factors remain constant after the Initial Valuation Date, the price at which Barclays Capital Inc. may initially buy or sell the Notes in the secondary market, if any, and the value that we may initially use for customer account statements, if we provide any customer account statements at all, may exceed our estimated value on the Initial Valuation Date for a temporary period expected to be approximately three months after the Issue Date because, in our discretion, we may elect to effectively reimburse to investors a portion of the estimated cost of hedging our obligations under the Notes and other costs in connection with the Notes which we will no longer expect to incur over the term of the Notes. We made such discretionary election and determined this temporary reimbursement period on the basis of a number of factors, which may include the tenor of the Notes and/or any agreement we may have with the distributors of the Notes. The amount of our estimated costs which we effectively reimburse to investors in this way may not be allocated ratably throughout the reimbursement period, and we may discontinue such reimbursement at any time or revise the duration of the reimbursement period after the initial Issue Date of the Notes based on changes in market conditions and other factors that cannot be predicted.

We urge you to read the “Selected Risk Considerations” beginning on page PS–7 of this pricing supplement.

You may revoke your offer to purchase the Notes at any time prior to the Initial Valuation Date. We reserve the right to change the terms of, or reject any offer to purchase, the Notes prior to the Initial Valuation Date. In the event of any changes to the terms of the Notes, we will notify you and you will be asked to accept such changes in connection with your purchase. You may also choose to reject such changes in which case we may reject your offer to purchase.

PS-3

SELECTED PURCHASE CONSIDERATIONS

The Notes are not suitable for all investors. The Notes may be a suitable investment for you if all of the following statements are true:

·You do not seek an investment that produces periodic interest or coupon payments or other sources of current income.

·You anticipate that the Final Value will be greater than the Initial Value and you are willing and able to accept the risk that your return on investment will not exceed the Maximum Return.

·You can tolerate a loss of up to 90.00% of the principal amount of your Notes.

·You understand and are willing and able to accept the risks associated with an investment linked to the performance of the Reference Asset.

·You understand and accept that you will not be entitled to receive dividends or distributions that may be paid to holders of a Reference Asset or any securities to which a Reference Asset provides exposure, nor will you have any voting rights with respect to a Reference Asset or any securities to which a Reference Asset provides exposure.

·You can tolerate fluctuations in the price of the Notes prior to scheduled maturity that may be similar to or exceed the downside fluctuations in the value of the Reference Asset.

·You do not seek an investment for which there will be an active secondary market, and you are willing and able to hold the Notes to maturity.

·You are willing and able to assume our credit risk for all payments on the Notes.

·You are willing and able to consent to the exercise of any U.K. Bail-in Power by any relevant U.K. resolution authority.

The Notes may not be a suitable investment for you if any of the following statements are true:

·You seek an investment that produces periodic interest or coupon payments or other sources of current income.

·You do not anticipate that the Final Value will be greater than the Initial Value.

·You seek an investment that provides for the full repayment of principal at maturity, and/or you are unwilling or unable to accept the risk that you may lose up to 90.00% of the principal amount of your Notes.

·You seek uncapped exposure to any positive performance of the Reference Asset.

·You do not understand and/or are unwilling or unable to accept the risks associated with an investment linked to the performance of the Reference Asset.

·You seek an investment that entitles you to dividends or distributions on, or voting rights related to a Reference Asset or any securities to which a Reference Asset provides exposure.

·You cannot tolerate fluctuations in the price of the Notes prior to scheduled maturity that may be similar to or exceed the downside fluctuations in the value of the Reference Asset.

·You seek an investment for which there will be an active secondary market, and/or you are unwilling or unable to hold the Notes to maturity.

·You prefer the lower risk, and therefore accept the potentially lower returns, of fixed income investments with comparable maturities and credit ratings.

·You are unwilling or unable to assume our credit risk for all payments on the Notes.

·You are unwilling or unable to consent to the exercise of any U.K. Bail-in Power by any relevant U.K. resolution authority.

You must rely on your own evaluation of the merits of an investment in the Notes. You should reach a decision whether to invest in the Notes after carefully considering, with your advisors, the suitability of the Notes in light of your investment objectives and the specific information set out in this pricing supplement and the documents referenced under “Additional Documents Related to the Offering of the Notes” in this pricing supplement. Neither the Issuer nor Barclays Capital Inc. makes any recommendation as to the suitability of the Notes for investment.

ADDITIONAL TERMS OF THE NOTES

The Final Valuation Date and the Maturity Date are subject to postponement in certain circumstances, as described under “Reference Assets— Exchange-Traded Funds—Market Disruption Events for Securities with an Exchange-Traded Fund that Holds Equity Securities as a Reference Asset” and “Terms of the Notes—Payment Dates” in the accompanying prospectus supplement.

In addition, the Reference Asset and the Notes are subject to adjustment by the Calculation Agent under certain circumstances, as described under “Reference Assets— Exchange-Traded Funds—Adjustments Relating to Securities with an Exchange-Traded Fund as a Reference Asset” in the accompanying prospectus supplement.

PS-4

HYPOTHETICAL EXAMPLES OF AMOUNTS PAYABLE AT MATURITY

The following table illustrates the hypothetical payment at maturity under various circumstances. The “total return” as used in these examples is the number, expressed as a percentage, that results from comparing the payment at maturity per $1,000 principal amount Note to $1,000. The hypothetical total returns set forth below are for illustrative purposes only and may not be the actual total returns applicable to a purchaser of the Notes. The numbers appearing in the following table and examples have been rounded for ease of analysis. The hypothetical examples below do not take into account any tax consequences from investing in the Notes and make the following key assumptions:

§Hypothetical Initial Value: 100.00*

§Hypothetical Buffer Value: 90.00 (90.00% of the hypothetical Initial Value set forth above)*

§Maximum Return: 26.40%

*The hypothetical Initial Value of 100.00 and the hypothetical Buffer Value of 90.00 have been chosen for illustrative purposes only and do not represent a likely Initial Value or Buffer Value. The actual Initial Value will be equal to the Closing Value of the Reference Asset on the Initial Valuation Date and the actual Buffer Value will be equal to 90.00% of the Initial Value.

For information regarding recent values of the Reference Asset, please see “Information Regarding the Reference Asset” in this pricing supplement.

Final Value	Reference Asset Return	Payment at Maturity**	Total Return on Notes
150.00	50.00%	$1,264.00	26.40%
140.00	40.00%	$1,264.00	26.40%
130.00	30.00%	$1,264.00	26.40%
120.00	20.00%	$1,264.00	26.40%
117.60	17.60%	$1,264.00	26.40%
110.00	10.00%	$1,150.00	15.00%
105.00	5.00%	$1,075.00	7.50%
100.00	0.00%	$1,000.00	0.00%
95.00	-5.00%	$1,000.00	0.00%
90.00	-10.00%	$1,000.00	0.00%
80.00	-20.00%	$900.00	-10.00%
70.00	-30.00%	$800.00	-20.00%
60.00	-40.00%	$700.00	-30.00%
50.00	-50.00%	$600.00	-40.00%
40.00	-60.00%	$500.00	-50.00%
30.00	-70.00%	$400.00	-60.00%
20.00	-80.00%	$300.00	-70.00%
10.00	-90.00%	$200.00	-80.00%
0.00	-100.00%	$100.00	-90.00%

** per $1,000 principal amount Note

The following examples illustrate how the total returns set forth in the table above are calculated:

Example 1: The Final Value of the Reference Asset is 140.00.

Because the Final Value of the Reference Asset is greater than or equal to the Initial Value and because the Reference Asset Return is greater than or equal to the Maximum Return, you will receive a payment at maturity of $1,264.00 per $1,000.00 principal amount Note that you hold, the maximum possible payment on the Notes

The total return on investment of the Notes is 26.40%.

Example 2: The Final Value of the Reference Asset is 110.00.

Because the Final Value of the Reference Asset is greater than or equal to the Initial Value and because the Reference Asset Return is less than the Maximum Return, you will receive a payment at maturity of $1,150.00 per $1,000.00 principal amount Note that you hold, calculated as follows:

$1,000 + [$1,000 × Reference Asset Return × Upside Leverage Factor]

$1,000 + [$1,000 × 10.00% × 1.50] = $1,150.00

The total return on investment of the Notes is 15.00%.

Example 3: The Final Value of the Reference Asset is 95.00.

Because the Final Value of the Reference Asset is less than the Initial Value but greater than or equal to the Buffer Value, you will receive a payment at maturity of $1,000 per $1,000 principal amount Note that you hold.

The total return on investment of the Notes is 0.00%.

PS-5

Example 4: The Final Value of the Reference Asset is 50.00.

Because the Final Value of the Reference Asset is less than the Buffer Value, you will receive a payment at maturity of $600.00 per $1,000 principal amount Note that you hold, calculated as follows:

$1,000 + [$1,000 × (Reference Asset Return + Buffer Percentage)]

$1,000 + [$1,000 × (-50.00% + 10.00%)] = $600.00

The total return on investment of the Notes is -40.00%.

PS-6

SELECTED RISK CONSIDERATIONS

An investment in the Notes involves significant risks. Investing in the Notes is not equivalent to investing directly in the Reference Asset or its components, if any. Some of the risks that apply to an investment in the Notes are summarized below, but we urge you to read the more detailed explanation of risks relating to the Notes generally in the “Risk Factors” section of the prospectus supplement. You should not purchase the Notes unless you understand and can bear the risks of investing in the Notes.

·Your Investment in the Notes May Result in a Significant Loss—The Notes differ from ordinary debt securities in that the Issuer will not necessarily repay the full principal amount of the Notes at maturity. If the Final Value of the Reference Asset is less than the Buffer Value, you will lose 1.00% of the principal amount of your Notes for every 1.00% that the Reference Asset Return falls below -10.00%. You may lose up to 90.00% of the principal amount of your Notes.

·Potential Return is Limited to the Maximum Return—If the Final Value is greater than or equal to the Initial Value, you will receive a payment at maturity of $1,000 per $1,000 principal amount Note that you hold plus an additional payment that will not exceed $1,000 times the Maximum Return. Assuming the Maximum Return is set at 26.40%, the maximum payment that you may receive at maturity is $1,264.00 per $1,000 principal amount Note that you hold, and you will not benefit from any appreciation of the Reference Asset beyond a Reference Asset Return of 17.60%, which may be significant.

·The Payment at Maturity of Your Notes is Based Solely on the Closing Value of the Reference Asset on the Final Valuation Date—The Final Value of the Reference Asset will be based solely on the Closing Value on the Final Valuation Date. Accordingly, if the value of the Reference Asset drops on the Final Valuation Date, the payment at maturity on the Notes may be significantly less than it would have been had it been linked to the value of the Reference Asset at any time prior to such drop.

·Credit of Issuer—The Notes are unsecured and unsubordinated debt obligations of the Issuer, Barclays Bank PLC, and are not, either directly or indirectly, an obligation of any third party. Any payment to be made on the Notes is subject to the ability of Barclays Bank PLC to satisfy its obligations as they come due and is not guaranteed by any third party. As a result, the actual and perceived creditworthiness of Barclays Bank PLC may affect the market value of the Notes, and in the event Barclays Bank PLC were to default on its obligations, you may not receive any amounts owed to you under the terms of the Notes.

·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 any other agreements, arrangements or understandings between Barclays Bank PLC and any holder or beneficial owner of the Notes, by acquiring the Notes, each holder and 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 pricing supplement. 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 the 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 pricing supplement 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 could materially adversely affect the value of the 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.

·Owning the Notes is Not the Same as Owning A Reference Asset or Any Securities to which A Reference Asset Provides Exposure—The return on the Notes may not reflect the return you would realize if you actually owned a Reference Asset or any securities to which a Reference Asset provides exposure. As a holder of the Notes, you will not have voting rights or rights to receive dividends or other distributions or any other rights that holders of a Reference Asset or any securities to which a Reference Asset provides exposure may have.

·Historical Performance of the Reference Asset Should Not Be Taken as Any Indication of the Future Performance of the Reference Asset Over the Term of the Notes—The value of the Reference Asset has fluctuated in the past and may, in the future, experience significant fluctuations. The historical performance of the Reference Asset is not an indication of the future performance of the Reference Asset over the term of the Notes. Therefore, the performance of the Reference Asset over the term of the Notes may bear no relation or resemblance to the historical performance of the Reference Asset.

PS-7

·Certain Features of Exchange-Traded Funds Asset Will Impact the Value of the Notes—The performance of the Reference Asset will not fully replicate the performance of its Underlying Index (as defined below), and the Reference Asset may hold securities not included in its Underlying Index. The value of the Reference Asset is subject to:

oManagement risk. This is the risk that the investment strategy for the Reference Asset, the implementation of which is subject to a number of constraints, may not produce the intended results. However, the Reference Asset is not actively managed and the investment advisor of the Reference Asset will generally not attempt to take defensive positions in declining markets.

oDerivatives risk. The Reference Asset may invest in derivatives, including forward contracts, futures contracts, options on futures contracts, options and swaps. A derivative is a financial contract, the value of which depends on, or is derived from, the value of an underlying asset such as a security or an index. Compared to conventional securities, derivatives can be more sensitive to changes in interest rates or to sudden fluctuations in market prices, and thus the Reference Asset’s losses, and, as a consequence, the losses on your Notes, may be greater than if the Reference Asset invested only in conventional securities.

oTransaction costs and fees. Unlike its Underlying Index, the Reference Asset will reflect transaction costs and fees that will reduce its performance relative to its Underlying Index.

Generally, the longer the time remaining to maturity, the more the market price of the Notes will be affected by the factors described above. In addition, the Reference Asset may diverge significantly from the performance of its Underlying Index due to differences in trading hours between the Reference Asset and the securities composing its Underlying Index or other circumstances. During periods of market volatility, the component securities held by the Reference Asset may be unavailable in the secondary market, market participants may be unable to calculate accurately the intraday net asset value per share of the Reference Asset and the liquidity of the Reference Asset may be adversely affected. This kind of market volatility may also disrupt the ability of market participants to create and redeem shares in the Reference Asset. Further, market volatility may adversely affect, sometimes materially, the prices at which market participants are willing to buy and sell shares of the Reference Asset. As a result, under these circumstances, the market value of the Reference Asset may vary substantially from the net asset value per share of the Reference Asset. Because the Notes are linked to the performance of the Reference Asset and not its Underlying Index, the return on your Notes may be less than that of an alternative investment linked directly to its Underlying Index.

·Adjustments to the Reference Asset or its Underlying Index Could Adversely Affect the Value of the Notes or Result in the Notes Being Accelerated—The investment adviser of the Reference Asset may add, delete or substitute the component securities held by the Reference Asset or make changes to its investment strategy, and the sponsor of the Underlying Index that the Reference Asset is designed to track may add, delete, substitute or adjust the securities composing its Underlying Index or make other methodological changes to its Underlying Index that could affect its performance. In addition, if the shares of the Reference Asset are delisted or if the Reference Asset is liquidated or otherwise terminated, the Calculation Agent may select a successor fund that the Calculation Agent determines to be comparable to the Reference Asset or, if no successor fund is available, the Maturity Date of the Notes will be accelerated for a payment determined by the Calculation Agent. Any of these actions could adversely affect the value of the Reference Asset and, consequently, the value of the Notes. Any amount payable upon acceleration could be significantly less than the amount(s) that would be due on the securities if they were not accelerated. See “Reference Assets—Exchange-Traded Funds—Adjustments Relating to Securities with an Exchange-Traded Fund as a Reference Asset—Discontinuance of an Exchange-Traded Fund” in the accompanying prospectus supplement

·Anti-Dilution Protection Is Limited, and the Calculation Agent Has Discretion to Make Anti-Dilution Adjustments—The Calculation Agent may in its sole discretion make adjustments affecting the amounts payable on the Notes upon the occurrence of certain events that the Calculation Agent determines have a diluting or concentrative effect on the theoretical value of the shares of the Reference Asset. However, the Calculation Agent might not make such adjustments in response to all events that could affect the shares of the Reference Asset. The occurrence of any such event and any adjustment made by the Calculation Agent (or a determination by the Calculation Agent not to make any adjustment) may adversely affect any amounts payable on the Notes. See “Reference Assets—Exchange-Traded Funds—Adjustments Relating to Securities with an Exchange-Traded Fund as a Reference Asset—Anti-dilution Adjustments” in the accompanying prospectus supplement.

·The Notes Are Subject to Risks Associated with Mid-Capitalization Stocks—The Reference Asset is intended to track the performance of the S&P MidCap 400® Index, which, in turn, tracks the mid-capitalization segment of the U.S. equity market. The stock prices of mid-sized companies may be more volatile than stock prices of large capitalization companies. Mid-capitalization companies may be less able to withstand adverse economic, market, trade and competitive conditions relative to larger companies. Mid-capitalization companies may be less likely to pay dividends on their stocks, and the presence of a dividend payment could be a factor that limits downward stock price pressure under adverse market conditions.

·The Estimated Value of Your Notes is Expected to be Lower Than the Initial Issue Price of Your Notes—The estimated value of your Notes on the Initial Valuation Date is expected to be lower, and may be significantly lower, than the initial issue price of your Notes. The difference between the initial issue price of your Notes and the estimated value of the Notes is a result of certain factors, such as any sales commissions to be paid to Barclays Capital Inc. or another affiliate of ours, any selling concessions, discounts, commissions or fees (including any structuring or other distribution related fees) to be allowed or paid to non-affiliated intermediaries, the estimated profit that we or any of our affiliates expect to earn in connection with structuring the Notes, the estimated cost which we may incur in hedging our obligations under the Notes, and estimated development and other costs which we may incur in connection with the Notes.

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·The Estimated Value of Your Notes Might be Lower if Such Estimated Value Were Based on the Levels at Which Our Debt Securities Trade in the Secondary Market—The estimated value of your Notes on the Initial Valuation Date is based on a number of variables, including 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 above might be lower if such estimated value were based on the levels at which our benchmark debt securities trade in the secondary market.

·The Estimated Value of the Notes is Based on Our Internal Pricing Models, Which May Prove to be Inaccurate and May be Different from the Pricing Models of Other Financial Institutions—The estimated value of your Notes on the Initial Valuation Date is based on our internal pricing models, which take into account a number of variables and are based on a number of subjective assumptions, which may or may not materialize. These variables and assumptions are not evaluated or verified on an independent basis. Further, our pricing models may be different from other financial institutions’ pricing models and the methodologies used by us to estimate the value of the Notes may not be consistent with those of other financial institutions which may be purchasers or sellers of Notes in the secondary market. As a result, the secondary market price of your Notes may be materially different from the estimated value of the Notes determined by reference to our internal pricing models.

·The Estimated Value of Your Notes Is Not a Prediction of the Prices at Which You May Sell Your Notes in the Secondary Market, if any, and Such Secondary Market Prices, If Any, Will Likely be Lower Than the Initial Issue Price of Your Notes and May be Lower Than the Estimated Value of Your Notes—The estimated value of the Notes will not be a prediction of the prices at which Barclays Capital Inc., other affiliates of ours or third parties may be willing to purchase the Notes from you in secondary market transactions (if they are willing to purchase, which they are not obligated to do). 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 be predicted, such as market conditions, and any bid and ask spread for similar sized trades, and may be substantially less than our estimated value of the Notes. Further, as secondary market prices of your Notes take into account the levels at which our debt securities trade in the secondary market, and do not take into account our various costs related to the Notes such as fees, commissions, discounts, and the costs of hedging our obligations under the Notes, secondary market prices of your Notes will likely be lower than the initial issue price of your Notes. As a result, the price at which Barclays Capital Inc., other affiliates of ours or third parties may be willing to purchase the Notes from you in secondary market transactions, if any, will likely be lower than the price you paid for your Notes, and any sale prior to the Maturity Date could result in a substantial loss to you.

·The Temporary Price at Which We May Initially Buy The Notes in the Secondary Market And the Value We May Initially Use for Customer Account Statements, If We Provide Any Customer Account Statements At All, May Not Be Indicative of Future Prices of Your Notes—Assuming that all relevant factors remain constant after the Initial Valuation Date, the price at which Barclays Capital Inc. may initially buy or sell the Notes in the secondary market (if Barclays Capital Inc. makes a market in the Notes, which it is not obligated to do) and the value that we may initially use for customer account statements, if we provide any customer account statements at all, may exceed our estimated value of the Notes on the Initial Valuation Date, as well as the secondary market value of the Notes, for a temporary period after the initial Issue Date of the Notes. The price at which Barclays Capital Inc. may initially buy or sell the Notes in the secondary market and the value that we may initially use for customer account statements may not be indicative of future prices of your Notes.

·We and Our Affiliates May Engage in Various Activities or Make Determinations That Could Materially Affect the Notes in Various Ways and Create Conflicts of Interest—We and our affiliates play a variety of roles in connection with the issuance of the Notes, as described below. In performing these roles, our and our affiliates’ economic interests are potentially adverse to your interests as an investor in the Notes.

In connection with our normal business activities and in connection with hedging our obligations under the Notes, we and our affiliates make markets in and trade various financial instruments or products for our accounts and for the account of our clients and otherwise provide investment banking and other financial services with respect to these financial instruments and products. These financial instruments and products may include securities, derivative instruments or assets that may relate to the Reference Asset or its components, if any. In any such market making, trading and hedging activity, and other financial services, we or our affiliates may take positions or take actions that are inconsistent with, or adverse to, the investment objectives of the holders of the Notes. We and our affiliates have no obligation to take the needs of any buyer, seller or holder of the Notes into account in conducting these activities. Such market making, trading and hedging activity, investment banking and other financial services may negatively impact the value of the Notes.

In addition, the role played by Barclays Capital Inc., as the agent for the Notes, could present significant conflicts of interest with the role of Barclays Bank PLC, as issuer of the Notes. For example, Barclays Capital Inc. or its representatives may derive compensation or financial benefit from the distribution of the Notes and such compensation or financial benefit may serve as incentive to sell the Notes instead of other investments. Furthermore, we and our affiliates establish the offering price of the Notes for initial sale to the public, and the offering price is not based upon any independent verification or valuation.

In addition to the activities described above, we will also act as the Calculation Agent for the Notes. As Calculation Agent, we will determine any values of the Reference Asset and make any other determinations necessary to calculate any payments on the Notes. In making these determinations, the Calculation Agent may be required to make discretionary judgements relating to the Reference Asset, including determining whether a market disruption event has occurred or whether certain adjustments to the Reference Asset or other terms of the Notes are necessary, as further described in the accompanying prospectus supplement. In making these discretionary judgments, our economic interests are potentially adverse to your interests as an investor in the Notes, and any of these determinations may adversely affect any payments on the Notes.

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·Lack of Liquidity—The Notes will not be listed on any securities exchange. Barclays Capital Inc. and other affiliates of Barclays Bank PLC intend to make a secondary market for the Notes but are not required to do so, and may discontinue any such secondary market making at any time, without notice. Barclays Capital Inc. may at any time hold unsold inventory, which may inhibit the development of a secondary market for the Notes. Even if there is a secondary market, it may not provide enough liquidity to allow you to trade or sell the Notes easily. Because other dealers are not likely to make a secondary market for the Notes, the price at which you may be able to trade your Notes is likely to depend on the price, if any, at which Barclays Capital Inc. and other affiliates of Barclays Bank PLC are willing to buy the Notes. The Notes are not designed to be short-term trading instruments. Accordingly, you should be willing and able to hold your Notes to maturity.

·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 Considerations.” 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.

Even if the treatment of the Notes is respected, the IRS may assert that the Notes constitute “constructive ownership transactions” within the meaning of Section 1260 of the Internal Revenue Code of 1986, as amended (the “Code”), in which case gain recognized in respect of the Notes that would otherwise be long-term capital gain and that was in excess of the “net underlying long-term capital gain” (as defined in Section 1260) would be treated as ordinary income, and a notional interest charge would apply as if that income had accrued for tax purposes at a constant yield over the term of the Notes. Our special tax counsel has not expressed an opinion with respect to whether the “constructive ownership” rules apply to the Notes.

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 or Derivative 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 the potential application of the constructive ownership rules, 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.

·Many Economic and Market Factors Will Impact the Value of the Notes—The value of the Notes will be affected by a number of economic and market factors that interact in complex and unpredictable ways and that may either offset or magnify each other, including:

othe market price of, dividend rate on and expected volatility of the Reference Asset or the components of the Reference Asset, if any;

othe time to maturity of the Notes;

ointerest and yield rates in the market generally;

oa variety of economic, financial, political, regulatory or judicial events;

osupply and demand for the Notes;

othe exchange rates relative to the U.S. dollar with respect to the currency in which the component securities held by the Reference Asset trade; and

oour creditworthiness, including actual or anticipated downgrades in our credit ratings.

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INFORMATION REGARDING THE REFERENCE ASSET

According to publicly available information, the Reference Asset is a registered investment company that seeks to provide investment results that, before expenses, correspond generally to the price and yield performance of the S&P MidCap 400® Index. The S&P MidCap 400® Index consists of stocks of 400 companies selected to provide a performance benchmark for the medium market capitalization segment of the U.S. equity markets. For more information about the Reference Asset, see the information set forth under “Exchange-Traded Funds—The SPDR® S&P MidCap 400® ETF Trust” in the accompanying underlying supplement.

Historical Performance of the Reference Asset

The graph below sets forth the historical performance of the Reference Asset based on the daily Closing Value from January 2, 2015 through May 6, 2020. We obtained the Closing Values shown in the graph below from Bloomberg Professional® service (“Bloomberg”). We have not independently verified the accuracy or completeness of the information obtained from Bloomberg.

Historical Performance of the SPDR® S&P MidCap 400® ETF Trust

PAST PERFORMANCE IS NOT INDICATIVE OF FUTURE RESULTS

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TAX CONSIDERATIONS

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 or Derivative 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. The following discussion supersedes the discussion in the accompanying prospectus supplement to the extent it is inconsistent therewith.

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 Reference Asset. Assuming this treatment is respected, upon a sale or exchange of the Notes (including redemption at maturity), you should recognize 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. Subject to the application of the constructive ownership rules, any gain or loss recognized 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. The Notes could be treated as constructive ownership transactions within the meaning of Section 1260 of the Code, in which case any gain recognized in respect of the Notes that would otherwise be long-term capital gain and that was in excess of the “net underlying long-term capital gain” (as defined in Section 1260) would be treated as ordinary income, and a notional interest charge would apply as if that income had accrued for tax purposes at a constant yield over the term of the Notes. Our special tax counsel has not expressed an opinion with respect to whether the constructive ownership rules apply to the Notes. Accordingly, U.S. holders should consult their tax advisors regarding the potential application of the constructive ownership rules.

The IRS or a court may not respect the treatment of the Notes described above, 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 described above. 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 the potential application of the constructive ownership rules, 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, 2023 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 pricing supplement for the Notes. You should consult your tax advisor regarding the potential application of Section 871(m) to the Notes.

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SUPPLEMENTAL PLAN OF DISTRIBUTION

We will agree to sell to Barclays Capital Inc. (the “Agent”), and the Agent will agree to purchase from us, the principal amount of the Notes, and at the price, specified on the cover of this pricing supplement. The Agent will commit to take and pay for all of the Notes, if any are taken.

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