Form 4 Filing for Jones Nathan R

Nathan R. Jones, Chief Risk Officer of FIRST INTERSTATE BANCSYSTEM INC (FIBK), acquired 3,843 shares of common stock on March 15, 2026. The acquisition was made under a transaction code "A" with a price per share of $33.13. This transaction resulted in Mr. Jones directly owning 3,843 shares post-transaction. The shares were issued upon vesting of restricted stock units granted under the company's 2023 Equity and Incentive Plan. These units vest in three equal annual installments starting March 15, 2027, contingent upon continued employment.