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FIRST INTERSTATE BANCSYSTEM INC Director's Dealing 2026

Mar 17, 2026

31290_dirs_2026-03-17_6df9032a-908a-4b1d-bbce-75c3def6829a.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2026-03-15

Reporting Person: Della Camera David (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-03-15	Common Stock	A	6279	$33.13	Acquired	27985	Direct

Footnotes

F1: Shares issuable upon vesting of restricted stock units granted to the reporting person pursuant to the Registrant's 2023 Equity and Incentive Plan. The restricted stock units vest in three equal annual
installments beginning on March 15, 2027, subject to the reporting person's continued employment through each applicable vesting date.