As publicly announced, the Annual Meeting of Shareholders will be held on Friday, April 24, 2026 at 9:30 a.m. Central Time. Shareholders of record as of the close of business on the record date of February 17, 2026, as well as their legal proxies and other interested parties, may attend the virtual annual meeting at https://meetnow.global/M6FQCW6. Instructions are available on the meeting website.

For registered shareholders with a valid control number, which can be found on their proxy card or notice, or email previously distributed in connection with the meeting, they may attend the meeting virtually as "Shareholder." Only one shareholder per control number may access the meeting.

Shareholders and other interested parties who do not have a control number may attend the virtual annual meeting as a "Guest." Guests may listen to the meeting but will not be able to vote or submit questions during the meeting.

About Commerce Bancshares, Inc.

Commerce Bancshares, Inc. (NASDAQ:CBSH) is a regional bank holding company with $35.7 billion in assets¹, offering banking, payment solutions, wealth management and securities brokerage through its subsidiaries. Commerce Bank, its primary subsidiary, brings over 160 years of experience helping individuals and businesses through high-touch service and sophisticated, personalized financial solutions.

Commerce maintains an extensive network of banking centers, wealth offices, and ATMs throughout the Midwest, as well as commercial offices in 11 states and offers payment solutions nationwide. With its recent acquisition of FineMark Holdings, Inc., Commerce builds on its existing private banking and wealth management presence in Florida and adds wealth offices in Arizona and South Carolina.

Customers can conveniently access their accounts 24/7 using mobile and online platforms, as well as a customer service line.

Learn more at www.commercebank.com.

¹As of March 31, 2026

View source version on businesswire.com: https://www.businesswire.com/news/home/20260423671669/en/

For more information, please contact:

Matt Burkemper (314) 746-7485

Matthew.Burkemper@CommerceBank.com

Commerce Bancshares, Inc. (NASDAQ: CBSH) Announces Webcast of Annual Meeting of Shareholders