Form4insider filings, from the source

Insider · CIK 0002090710

Christopher L. Shepler

Files at: FIBK. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 10, 2026 FForm 4 →Sep 22, 6:21 pm EDTFIRST INTERSTATE BANCSYSTEM INCFIBK222$36.88$8,18713,018— late
Jun 1, 2026 AForm 4 →Jun 3, 1:50 pm EDTFIRST INTERSTATE BANCSYSTEM INCFIBK3,370——13,240—

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.