ST. LOUIS & BILLINGS, Mont.--(BUSINESS WIRE)-- Enterprise Financial Services Corp (EFSC) and First Interstate BancSystem, Inc. (FIBK) have announced the signing of a purchase and assumption agreement ...
Oct. 16, 2025 4:01 PM ETFirst Interstate BancSystem, Inc. (FIBK) Security First’s purchase of these branches is subject to regulatory approval and satisfaction of certain customary closing conditions.