加拿大帝国商业银行美股招股说明书(2026-07-08版)

Subject to Completion, Dated July 8, 2026Pricing Supplement dated, 2026 (To Stock-Linked Underlying Supplement dated June 4, 2026,Prospectus Supplement dated June 4, 2026, and Prospectus dated June 4, 2026) Canadian Imperial Bank of Commerce Senior Global Medium-Term Notes $Contingent Coupon (with Memory) Barrier Notes Linked to the Worst Performing of the CommonShares of Abbott Laboratories, the Class A ordinary shares of Accenture plc and theCommon Stock of 3MCompanydue August 1, 2029 ●The Contingent Coupon (with Memory) Barrier Notes (the “notes”) will provide monthly Contingent Coupon Payments ofat least $10.60 per $1,000 principal amount (or at least 1.06% of the principal amount, equivalent to at least 12.72% perannum, to be determined on the Trade Date), as well as any previously unpaid Contingent Coupon Payments with respect toprior Coupon Determination Dates as described in the paragraph below if,and only if, the Closing Price of the WorstPerforming Reference Stock on the applicable monthly Coupon Determination Date is greater than or equal to its CouponBarrier Price (50% of its Initial Price).●If a Contingent Coupon Payment is not payable on a Coupon Payment Date because the Closing Price of the Worst Performing Reference Stock on the relevant Coupon Determination Date is less than its Coupon Barrier Price, suchContingent Coupon Payment will become payable on a later Coupon Payment Date if, and only if, the Closing Price of theWorst Performing Reference Stock on such later Coupon Determination Date is greater than or equal to its Coupon BarrierPrice. For the avoidance of doubt, once a previously unpaid Contingent Coupon Payment has been paid on a later CouponPayment Date, it will not be paid again on any subsequent Coupon Payment Date.●The Payment at Maturity will depend on the Final Price of the Worst Performing Reference Stock and will be calculated as follows: a.If the Final Price of the Worst Performing Reference Stock is greater than or equal to its Principal Barrier Price (50% ofits Initial Price): the sum of (i) the principal amount and (ii) the final Contingent Coupon Payment (with Memory).b.If the Final Price of the Worst Performing Reference Stock is less than its Principal Barrier Price: (i) the principalamount plus (ii) the product of the principal amount multiplied by the Percentage Change of the Worst PerformingReference Stock. In this case, you will lose some or all of the principal amount at maturity. Even with any ContingentCoupon Payments (with Memory), the return on the notes could be negative.●The notes will not be listed on any securities exchange. ●The notes will be issued in minimum denominations of $1,000 and integral multiples of $1,000 in excess thereof.The notes are unsecured obligations of the Bank and any payments on the notes are subject to the credit risk of the Bank. The notes will not constitute deposits insured by the Canada Deposit Insurance Corporation, the U.S. Federal DepositInsurance Corporation, or any other government agency or instrumentality of Canada, the United States or any otherjurisdiction. The notes are not bail-inable debt securities (as defined on page 6 of the prospectus).Neither the Securities and Exchange Commission (the “SEC”) nor any state or provincial securities commission has approved or disapproved of these notes or determined if this pricing supplement or the accompanying underlyingsupplement, prospectus supplement or prospectus is truthful or complete. Any representation to the contrary is a criminaloffense.Investing in the notes involves risks not associated with an investment in ordinary debt securities. See “Additional Risk Factors” beginning on page PS-8 of this pricing supplement, and “Risk Factors” beginning on page S-1 of theaccompanying underlying supplement, page S-1 of the prospectus supplement and page 1 of the prospectus. (1)CIBC World Markets Corp. (“CIBCWM”), acting as agent for the Bank, will not receive any underwriting discount inconnection with the distribution of the notes. See “Supplemental Plan of Distribution (Conflicts of Interest)” on page PS-18 of this pricing supplement.The initial estimated value of the notes on the Trade Date as determined by the Bank is expected to be between $845.60 and $901.60 per $1,000 principal amount of the notes, which is expected to be less than the price to public. See “The Bank’sEstimated Value of the Notes” in this pricing supplement. We will deliver the notes in book-entry form through the facilities of The Depository Trust Company (“DTC”) on or about July31, 2026 against payment in immediately available funds. You should read this pricing supplement together with the prospectus dated June 4, 2026 (the “prospectus”), theprospectus supplement dated June 4, 2026 (the “prospectus supplement”) and the Stock-Linked UnderlyingSupplement dated June 4, 2026 (the “underlying supplement”).Information in this pricing supplement supersedesinformation in the underlying supplem