First Interstate BancSystem, Inc. announced that the Board appointed Stephen B. Bowman to serve as Chair of the Board of Directors, effective May 23, 2024. Mr. Bowman has served the Company as a director since February 2021, and he will continue to serve as a member of the Compensation and Human Capital Committee of the Board of Directors. Mr. Bowman served as Chief Financial Officer of The Northern Trust Corporation, a global financial institution, from 2014 until his retirement in 2020.

Mr. Bowman is the successor in such role to David L. Jahnke, who has served as Chair of the Board of Directors since May 2020. Mr. Jahnke has served the Company as a director since September 2011, and he will continue to serve as a member of the Board of Directors and as a member of the Audit Committee, and its Governance and Nominating Committee.