Form4insider filings, from the source

SEC Form 4 · accession 0001493152-26-042633

FIRST INTERSTATE BANCSYSTEM INC · FIBK

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owners
Period of report
Sep 14, 2026
Accepted (ET)
Sep 14, 2026 · 7:21 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000860413

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Common StockF1,F2,F3Sep 14, 2026S8,071$37.29D817,738ISee Footnote

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses