Board approves $150M stock repurchase program through March 2027

FIRST INTERSTATE BANCSYSTEM INC

Authorizes repurchase of up to $150 million of common stock on or before March 31, 2027.
As of July 31, 2025, 104.86 million shares outstanding; closing price $32.20 on Aug 27.
Repurchases may be made via open market, private transactions, block trades, or Rule 10b5-1 plans.
Program may be suspended, terminated, or modified at any time; no obligation to repurchase any shares.

item 8.01item 9.01

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