Canadian Imperial Bank of Commerce

Canadian Imperial Bank of Commerce 81 Bay Street, Canada Square Toronto, Ontario Canada M5J 0E7

Notice of Aggregate Principal Amount and Other Information

(a Canadian chartered bank)

Issue of Up to GBP 2,000,000 Index Linked Interest and Redemption Notes due September 2032

under the UK Prospectus

pursuant to the Structured Note Issuance Programme

Issue of Series SPUK 078: Up to GBP 2,000,000 Index Linked Interest and Redemption Notes due September 2032 (the "Notes") pursuant to the Final Terms dated 17 July 2025, as amended and restated by the Amended and Restated Final Terms dated 2 September 2025 (the "Final Terms")

ISIN Code: XS3125783525

As required by Article 17(2) of the UK Prospectus Regulation (Regulation (EU) 2017/1129 as it forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018), Canadian Imperial Bank of Commerce as issuer hereby confirms that the final Aggregate Principal Amount of the Notes is

GBP 2,213,442

The title of the Notes is now "Issue of GBP 2,213,442 Index Linked Interest and Redemption Notes due September 2032".

Capitalised terms used but not defined herein shall be as defined in the Final Terms.

This Notice and the Final Terms be read and construed together as one document.

Dated: 2 September 2025