0001213900-25-085408 Sample Contracts

UNDERWRITING AGREEMENT September 2, 2025
Underwriting Agreement • September 8th, 2025 • Canadian Imperial Bank of Commerce /Can/ • Commercial banks, nec • New York

Canadian Imperial Bank of Commerce, a Canadian bank chartered under the Bank Act (Canada) (the Bank), proposes to issue and sell to the several underwriters named in Schedule 2 hereto (the Underwriters) US$650,000,000 aggregate principal amount of its Floating Rate Senior Notes due 2028 (the Floating Rate Notes), US$850,000,000 aggregate principal amount of its 4.243% Fixed-to-Floating Rate Senior Notes due 2028 (the 2028 Fixed-to-Floating Rate Notes) and US$1,000,000,000 aggregate principal amount of its 4.580% Fixed-to-Floating Rate Senior Notes due 2031 (the 2031 Fixed-to-Floating Rate Notes, together with the 2028 Fixed-to-Floating Rate Notes, the Fixed-to-Floating Rate Notes, and the Fixed-to-Floating Rate Notes together with the Floating Rate Notes, the Securities), as set forth in Schedule 4 hereto, to be issued pursuant to the provisions of an indenture, dated as of September 14, 2010 (the Base Indenture) between the Bank and The Bank of New York Mellon, as trustee (the Trustee