加拿大帝国商业银行美股招股说明书(2026-07-10版)

Subject to Completion, Dated July 10, 2026PRICING SUPPLEMENT dated , 2026(To Equity Index Underlying Supplement dated June 4,2026, Prospectus Supplement dated June 4, 2026 andProspectus dated June 4, 2026) Canadian Imperial Bank of Commerce $ Senior Global Medium-Term Notes Capped Leveraged Buffered Basket-Linked Notes due The notes do not bear interest.The amount that you will be paid on your notes on the stated maturity date (expected to be the second scheduledbusiness day after the determination date) is based on the performance of a weighted basket comprised of the EURO STOXX 50®Index (40.00%weighting), the TOPIX®Index (25.00% weighting), the FTSE®100 Index (17.00% weighting), the Swiss Market Index®(11.00% weighting) and theS&P®/ASX 200 Index (7.00% weighting) (the “basket”) as measured from the trade date to and including the determination date (expected to be between18 and 21 months after the trade date). The initial basket level is 100 and the final basket level will equal the sum of the products, as calculated for eachbasket underlier, of: (i) the final basket underlier level divided by the initial basket underlier level (set on the trade date and may be higher or lower thanthe actual closing level of the basket underlier on the trade date) multiplied by (ii) the applicable initial weighted value for the basket underlier. If the finalbasket level on the determination date is greater than the initial basket level, the return on your notes will be positive and will equal the upsideparticipation rate of 1.8 times the basket return, subject to the maximum settlement amount (expected to be between $1,224.82 and $1,264.42 for each$1,000 principal amount of your notes). If the final basket level declines by up to 15.00% from the initial basket level, you will receive the principalamount of your notes.If the final basket level declines by more than 15.00% from the initial basket level, the return on your notes will benegative. You could lose your entire investment in the notes. To determine your payment at maturity, we will calculate the basket return, which is the percentage increase or decrease in the final basket level from theinitial basket level. On the stated maturity date, for each $1,000 principal amount of your notes, you will receive an amount in cash equal to: if the basket return ispositive(i.e. the final basket level isgreater thanthe initial basket level), thesumof (i) $1,000plus(ii) theproductof (a)$1,000times(b) the upside participation ratetimes(c) the basket return, subject to the maximum settlement amount; orif the basket return iszeroornegativebut not below -15.00% (i.e. the final basket level isequalto orless thanthe initial basket level, but notby more than 15.00%), $1,000; orif the basket return isnegativeand isbelow-15.00% (i.e. the final basket level isless thanthe initial basket level by more than 15.00%), thesumof (i) $1,000plus(ii) theproductof (a) approximately 1.1765times(b) thesumof the basket returnplus15.00%times(c) $1,000.Thisamount will be less than $1,000 and may be zero. Declines in one basket underlier may offset increases in the other basket underliers. Due to the unequal weighting of each basket underlier,the performances of the EURO STOXX 50®Index, the TOPIX®Index and the FTSE®100 Index will have a significantly larger impact on yourreturn on the notes than the performance of the Swiss Market Index®or the S&P®/ASX 200 Index. The notes have complex features and investing in the notes involves risks not associated with an investment in conventional debt securities.See “Additional Risk Factors Specific to Your Notes” beginning on page PRS-14 of this Pricing Supplement and “Risk Factors” beginning onpage S-1 of the accompanying Underlying Supplement. Our estimated value of the notes on the trade date, based on our internal pricing models, is expected to be between $972.40 and $992.40 per note. Theestimated value is expected to be less than the initial issue price of the notes. See “The Bank’s Estimated Value of the Notes” in this Pricing Supplement. The notes are unsecured obligations of Canadian Imperial Bank of Commerce and all payments on the notes are subject to the credit risk ofCanadian Imperial Bank of Commerce. The notes will not constitute deposits insured by the Canada Deposit Insurance Corporation, the U.S.Federal Deposit Insurance 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). The notes will not be listed on any U.S.securities exchange. Neither the United States Securities and Exchange Commission (the “SEC”) nor any state or provincial securities commission has approvedor disapproved of these securities or determined if this Pricing Supplement or the accompanying Underlying Supplement, ProspectusSupplement or Prospectus is truthful or complete. Any representation to the contrary is a crim