加拿大帝国商业银行美股招股说明书(2025-11-17版)

Amendment No. 1 dated November 17, 2025 to Preliminary Pricing Supplement dated N Pricing Supplement dated(To Equity Index Underlying Supplement dated Septembe Canadian Imperial Bank of Commerce Trigger Autocallable Contingent Notes Linked to the Least Performing of the Russell 2000®Index and the Nasdaq-100 Index® Investment Description These Trigger Autocallable Contingent Yield Notes (the “Notes”) are senior unsecured debt securities issued by Canadian Imperial Bank of Commerce (“CIBC”returns linked to the Least Performing of the Russell 2000®Index and the Nasdaq-100 Index® (each, an “Underlying” and together, the “Underlyings”). Therank equally with all of our other unsecured and unsubordinated debt obligations. CIBC will pay a quarterly Contingent Coupon if the Closing Level of each Undethe applicable Coupon Determination Date (including the Final Valuation Date) is equal to or greater than its Coupon Barrier. Otherwise, no coupon will be paid fquarter. CIBC will automatically call the Notes if the Closing Level of each Underlying on any quarterly Call Observation Date, commencing on May 19, 2026, is eqgreater than its Initial Level. If the Notes are called, CIBC will pay you the principal amount of your Notes plus the Contingent Coupon for the applicable quarter,further amounts will be owed to you under the Notes. The Underlying with the lowest Underlying Return is the “Least Performing Underlying.” If the Notes areprior to maturity and the Final Level of the Least Performing Underlying is equal to or greater than its Coupon Barrier, CIBC will pay you a cash payment at matur 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 amowill be exposed to the market risk of each Underlying on each Coupon Determination Date and any decline in the level of one Underlying may negativelyyour return and will not be offset or mitigated by a lesser decline or any increase in the level of any other Underlying. Generally, the higher the ContingeRate on a Note, the greater the risk of loss on that Note. The contingent repayment of principal only applies if you hold the Notes to maturity or automa Features ❑Contingent Coupon:CIBC will pay a quarterly Contingent Coupon payment if the ClosingLevel of each Underlying on the applicable Coupon Determination Date is equal to or ❑Automatically Callable:CIBC will automatically call the Notes and pay you the principalamount of your Notes plus the Contingent Coupon otherwise due for that applicablequarter if the Closing Level of each Underlying on any quarterly Call Observation Date, ❑Contingent Repayment of Principal Amount at Maturity:If the Notes have not beenpreviously called and the Final Level of the Least Performing Underlying is not less than itsCoupon Barrier, CIBC will pay you the principal amount per Note at maturity plus the finalContingent Coupon. If the Final Level of the Least Performing Underlying is less than itsCoupon Barrier but equal to or greater than its Downside Threshold, CIBC will pay you acash payment at maturity equal to the principal amount of your Notes (a zero return). If the THE NOTES ARE SIGNIFICANTLY RISKIER THAN CONVENTIONAL DEBT INSTRUMENTS. THE TERMS OF THE NOTES MAY NOT OBLIGATE CIBC TO REPAY TPRINCIPAL AMOUNT OF THE NOTES. THE NOTES CAN HAVE DOWNSIDE MARKET RISK SIMILAR TO THE LEAST PERFORMING UNDERLYING, WHICH CANIN A LOSS OF SOME OR ALL OF THE PRINCIPAL AMOUNT AT MATURITY. THIS MARKET RISK IS IN ADDITION TO THE CREDIT RISK INHERENT IN PURCHA YOU SHOULD CAREFULLY CONSIDER THE RISKS DESCRIBED UNDER “KEY RISKS” BEGINNING ON PAGE PS-7 AND THE MORE DETAILED “RISK FACTORBEGINNING ON PAGE S-1 OF THE ACCOMPANYING UNDERLYING SUPPLEMENT, BEGINNING ON PAGE S-1 OF THE ACCOMPANYING PROSPECTUS SUPPLAND PAGE 1 OF THE ACCOMPANYING PROSPECTUS BEFORE PURCHASING ANY NOTES. EVENTS RELATING TO ANY OF THOSE RISKS, OR OTHER RISKS A Note Offering The Notes are offered at a minimum investment of $1,000 in denominations of $10 and integral multiples of $10 in excess thereof. The final terms of the Notes wdetermined on the Trade Date. Neither the U.S. Securities and Exchange Commission (the “SEC”) nor any state or provincial securities commission has approved or disapproved of thedetermined if this pricing supplement or the accompanying underlying supplement, prospectus supplement or prospectus is truthful or complete. Anyrepresentation to the contrary is a criminal offense. The Notes will not constitute deposits insured by the Canada Deposit Insurance Corporation (the “CDIC”), the U.S. Federal Deposit Insurance Corporatioother government agency or instrumentality of Canada, the United States or any other jurisdiction. The Notes are not bail-inable debt securities (as define6 of the prospectus). The Notes will not be listed on any securities exchange. The initial estimated value of the Notes on the Trade Date as determined by CIBC is expected to be between