加拿大帝国商业银行美股招股说明书(2026-03-05版)

Registration No. 333-272447 Canadian Imperial Bank of Commerce Trigger Autocallable Contingent Yield NotesNotes Linked to the Least Performing of the S&P 500®Index and the EURO STOXX 50® Index due on or about March 11, 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 returns linked to the Least Performingof the S&P 500®Index and the EURO STOXX 50®Index (each, an “Underlying” and together, the “Underlyings”). The Notes will rank equally with all of our other unsecured and unsubordinated debtobligations. CIBC will pay a quarterly Contingent Coupon if the Closing Level of each Underlying on the applicable Coupon Determination Date (including the Final Valuation Date) is equal to or greaterthan its Coupon Barrier. Otherwise, no coupon will be paid for the quarter. CIBC will automatically call the Notes if the Closing Level of each Underlying on any quarterly Call Observation Date,commencing on September 8, 2026, is equal to or greater 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 applicablequarter, and no 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 are not called prior to maturityand 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 maturity equal to the principal amount of your Notes plus thefinal Contingent Coupon. If the Final Level of the Least Performing Underlying is less than its Coupon Barrier but equal to or greater than its Downside Threshold, CIBC will pay you a cash payment atmaturity equal to the principal amount of your Notes (a zero return). If the Final Level of the Least Performing Underlying is less than its Downside Threshold, CIBC will pay you less than the fullprincipal amount, if anything, resulting in a loss on your initial investment that is proportionate to the negative performance of the Least Performing Underlying over the term of the Notes, and you maylose 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 will be exposed to the marketrisk of each Underlying on each Coupon Determination Date and any decline in the level of one Underlying may negatively affect your return and will not be offset or mitigated by a lesserdecline or any increase in the level of any other Underlying. Generally, the higher the Contingent Coupon Rate on a Note, the greater the risk of loss on that Note. The contingent repayment ofprincipal only applies if you hold the Notes to maturity or automatic call. Any payments on the Notes, including any repayment of principal, are subject to the creditworthiness of CIBC. IfCIBC were to default on its payment obligations, you may not receive any amounts owed to you under the Notes and you could lose your entire investment. Key Dates1 Features ❑Contingent Coupon:CIBC will pay a quarterly Contingent Coupon payment if the Closing Level of eachUnderlying on the applicable Coupon Determination Date is equal to or greater than its Coupon Barrier.Otherwise, no coupon will be paid for the quarter.❑Automatically Callable:CIBC will automatically call the Notes and pay you the principal amount of your Trade DateSettlement DateCoupon Determination Dates2Call Observation Dates2Final Valuation Date2Maturity Date2 March 6, 2026March 11, 2026Quarterly, commencing on June 8, 2026Quarterly, commencing on September 8,2026March 6, 2031March 11, 2031 Notes plus the Contingent Coupon otherwise due for that applicable quarter if the Closing Level of eachUnderlying on any quarterly Call Observation Date, commencing on September 8, 2026 is equal to or greaterthan its Initial Level. If the Notes are not called, investors will potentially lose a portion of their principalamount at maturity.❑Contingent Repayment of Principal Amount at Maturity:If the Notes have not been previously calledand the Final Level of the Least Performing Underlying is not less than its Coupon Barrier, CIBC will payyou the principal amount per Note at maturity plus the final Contingent Coupon. If the Final Level of theLeast Performing Underlying is less than its Coupon Barrier but equal to or greater than its DownsideThreshold, CIBC will pay you a cash payment at maturity equal to the principal amount of your Notes (azero return). If the Final Level of the Least Performing Underlying is less than its Downside Threshold,CIBC will pay a cash amount that is less than the principal amount, if anything, resulting in a loss on yourinitial investment that is proportionate to the decline in the Closing Level of the Least PerformingUnderlying from the Trade Da