First Interstate BancSystem(FIBK) - 2025 Q4 - Annual Report
First Interstate BancSystemFirst Interstate BancSystem(US:FIBK)2026-02-26 21:19
Slide

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 10-K Delaware 81-0331430 (Mark One) ☑ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2025 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to . Commission File Number: 001-34653 FIRST INTERSTATE BANCSYSTEM, INC. (Exact name of registrant as specified in its charter) (State or other ...