加拿大帝国商业银行美股招股说明书(2026-04-27版)

Subject to Completion, Dated April 24, 2026 PRICING SUPPLEMENT dated, 2026(To Prospectus Supplement dated September 5, 2023 Canadian Imperial Bank of CommerceSenior Global Medium-Term Notes 4.375% Callable Notes due May 14, 2029 $ We, Canadian Imperial Bank of Commerce (the “Bank” or “CIBC”), are offering $aggregate principal amount of 4.375%Callable Notes due May 14, 2029 (CUSIP 13609FJG0 / ISIN US13609FJG00) (the “Notes”). At maturity, if the Notes have not been previously redeemed, you will receive a cash payment equal to 100% of the principalamount, plus any accrued and unpaid interest. Interest will be paid semi-annually on May 14 and November 14 of each year,commencing on November 14, 2026 and ending on the Maturity Date. The Notes will accrue interest semi-annually at a rate of We have the right to redeem the Notes, in whole but not in part, on May 14, 2028. The Redemption Price will be 100% of theprincipal amount plus accrued and unpaid interest to, but excluding, the Optional Redemption Date. The Notes will be issued in minimum denominations of $1,000, and integral multiples of $1,000 in excess thereof. The Notes will not be listed on any securities exchange. The Notes are unsecured obligations of CIBC and all payments on the Notes are subject to the credit risk of CIBC. TheNotes will not constitute deposits insured by the Canada Deposit Insurance Corporation, the U.S. Federal Deposit Neither the Securities and Exchange Commission (the “SEC”) nor any state or provincial securities commission hasapproved or disapproved of these Notes or determined if this pricing supplement or the accompanying prospectus The Notes are bail-inable debt securities (as defined in the accompanying prospectus) and subject to conversion in whole or inpart – by means of a transaction or series of transactions and in one or more steps – into common shares of the Bank or any of itsaffiliates under subsection 39.2(2.3) of the Canada Deposit Insurance Corporation Act (the “CDIC Act”) and to variation orextinguishment in consequence, and subject to the application of the laws of the Province of Ontario and the federal laws ofCanada applicable therein in respect of the operation of the CDIC Act with respect to the Notes. See “Description of Senior Debt Investing in the Notes involves risks. See the “Additional Risk Factors” beginning on page PS-6 of this pricing supplementand the “Risk Factors” beginning on page S-1 of the accompanying prospectus supplement and page 1 of the prospectus. (1)Because certain dealers who purchase the Notes for sale to certain fee-based advisory accounts may forgo some or all oftheir commissions or selling concessions, the price to public for investors purchasing the Notes in these accounts may be (2)CIBC World Markets Corp. (“CIBCWM”), acting as agent for the Bank, will receive a commission of up to $10.00(1.00%) per $1,000 principal amount of the Notes. CIBCWM may use a portion or all of its commission to allow sellingconcessions to other dealers in connection with the distribution of the Notes. The other dealers may forgo, in their sole We will deliver the Notes in book-entry form through the facilities of The Depository Trust Company (“DTC”) on or about May14, 2026 against payment in immediately available funds. ABOUT THIS PRICING SUPPLEMENT You should read this pricing supplement together with the prospectus dated September 5, 2023 (the “prospectus”)and the prospectus supplement dated September 5, 2023 (the “prospectus supplement”), each relating to our SeniorGlobal Medium-Term Notes, of which these Notes are a part, for additional information about the Notes.Information in this pricing supplement supersedes information in the prospectus supplement and the prospectus to You should rely only on the information contained in or incorporated by reference in this pricing supplement and theaccompanying prospectus supplement and the prospectus. This pricing supplement may be used only for the purposefor which it has been prepared. No one is authorized to give information other than that contained in this pricingsupplement and the accompanying prospectus supplement and the prospectus, and in the documents referred to in We are not, and CIBCWM is not, making an offer to sell the Notes in any jurisdiction where the offer or sale is notpermitted. You should not assume that the information contained in or incorporated by reference in this pricingsupplement or the accompanying prospectus supplement or the prospectus is accurate as of any date other than thedate of the applicable document. Our business, financial condition, results of operations and prospects may havechanged since that date. Neither this pricing supplement nor the accompanying prospectus supplement or theprospectus constitutes an offer, or an invitation on our behalf or on behalf of CIBCWM, to subscribe for and References to “CIBC,” “the Issuer,” “the Bank,” “we,” “us” and “our” in this pricing supplement are references t