加拿大帝国商业银行美股招股说明书(2026-07-09版)

Registration No. 333-294072Subject to Completion, Dated July 9, 2026Pricing Supplement dated, 2026(To Equity Index Underlying Supplement dated June 4, 2026, Prospectus Supplement dated June 4, 2026,and Prospectus dated June 4, 2026) Canadian Imperial Bank of Commerce Trigger Autocallable Contingent Yield Notes$Notes Linked to the Nasdaq-100 Index®due on or about July 15, 2031 Investment Description These Trigger Autocallable Contingent Yield Notes (the ‘‘Notes’’) are senior unsecured debt securities issued by Canadian Imperial Bank of Commerce (“CIBC”) with returnslinked to the Nasdaq-100 Index®(the “Underlying”). The Notes will rank equally with all of our other unsecured and unsubordinated debt obligations. CIBC will pay a quarterlyContingent Coupon if the Closing Level of the Underlying on the applicable Coupon Determination Date (including the Final Valuation Date) is equal to or greater than theCoupon Barrier. Otherwise, no coupon will be paid for the quarter. CIBC will automatically call the Notes if the Closing Level of the Underlying on any quarterly CallObservation Date, commencing on January 11, 2027 is equal to or greater than the Initial Level. If the Notes are called, CIBC will pay you the principal amount of your Notesplus the Contingent Coupon for the applicable quarter, and no further amounts will be owed to you under the Notes. If the Notes are not called prior to maturity and the FinalLevel is equal to or greater than the Downside Threshold, CIBC will pay you a cash payment at maturity equal to the principal amount of your Notes plus the final ContingentCoupon. If the Final Level is less than the Downside Threshold, CIBC will pay you less than the full principal amount, if anything, resulting in a loss on your initial investmentthat is proportionate to the negative performance of the Underlying over the term of the Notes, and you may lose up to 100% of your principal amount. Investing in the Notes involves significant risks. CIBC may not pay any Contingent Coupons on the Notes. You may lose some or all of your principal amount. You willbe exposed to the market risk of the Underlying on each Coupon Determination Date. Generally, the higher the Contingent Coupon Rate on a Note, the greater therisk of loss on that Note. The contingent repayment of principal only applies if you hold the Notes to maturity. Any payments on the Notes, including any repayment ofprincipal, are subject to the creditworthiness of CIBC. If CIBC were to default on its payment obligations, you may not receive any amounts owed to you under theNotes and you could lose your entire investment. Features ❑Contingent Coupon: CIBC will pay a quarterly Contingent Coupon payment if theClosing Level of the Underlying on the applicable Coupon Determination Date is equalto or greater than the Coupon Barrier. Otherwise, no coupon will be paid for thequarter. ❑Automatically Callable:CIBC will automatically call the Notes and pay you theprincipal amount of your Notes plus the Contingent Coupon otherwise due for thatapplicable quarter if the Closing Level of the Underlying on any quarterly CallObservation Date, commencing onJanuary 11, 2027is equal to or greater than theInitial Level. If the Notes are not called, investors will potentially lose a portion oftheir principal amount at maturity.❑Contingent Repayment of Principal Amount at Maturity:If the Notes have not been previously called and the Final Level of the Underlying is not less than theDownside Threshold on the Final Valuation Date, CIBC will pay you the principalamount per Note at maturity plus the final Contingent Coupon. If the Final Level of theUnderlying on the Final Valuation Date is less than the Downside Threshold, CIBCwill pay a cash amount that is less than the principal amount, if anything, resulting in aloss on your initial investment that is proportionate to the decline in the Closing Levelof the Underlying from the Trade Date to the Final Valuation Date. The contingentrepayment of principal only applies if you hold the Notes until maturity. Any paymentson the Notes, including any repayment of principal, are subject to the creditworthinessof CIBC. THE NOTES ARE SIGNIFICANTLY RISKIER THAN CONVENTIONAL DEBT INSTRUMENTS. THE TERMS OF THE NOTES MAY NOT OBLIGATE CIBC TO REPAY THE FULLPRINCIPAL AMOUNT OF THE NOTES. THE NOTES CAN HAVE DOWNSIDE MARKET RISK SIMILAR TO THE UNDERLYING, WHICH CAN RESULT IN A LOSS OF SOME OR ALLOF THE PRINCIPAL AMOUNT AT MATURITY. THIS MARKET RISK IS IN ADDITION TO THE CREDIT RISK INHERENT IN PURCHASING A DEBT OBLIGATION OF CIBC. YOUSHOULD NOT PURCHASE THE NOTES IF YOU DO NOT UNDERSTAND OR ARE NOT COMFORTABLE WITH THE SIGNIFICANT RISKS INVOLVED IN INVESTING IN THENOTES. YOU SHOULD CAREFULLY CONSIDER THE RISKS DESCRIBED UNDER ‘‘KEY RISKS’’ BEGINNING ON PAGE PS-6 AND THE MORE DETAILED ‘‘RISK FACTORS’’ BEGINNINGON PAGE S-1 OF THE ACCOMPANYING UNDERLYING SUPPLEMENT, BEGINNING ON PAGE S-1 OF THE ACCOMPANYING PROSPECTUS SUPPLEMENTAND PAGE 1