Form4insider filings, from the source

Insider · CIK 0001198518

John M Heyneman Jr.

Files at: FIBK. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jun 1, 2026 AForm 4 →Jun 3, 1:45 pm EDTFIRST INTERSTATE BANCSYSTEM INCFIBK2,247——7,471—

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.