56 insiders reported 277 Form 4 transactions for FIRST INTERSTATE BANCSYSTEM INC (FIBK) over the past 18 months (most recent 2026-06-18). Recent activity: Harper Grace Scott Trust (Insider) Sell 9,390 shares, Juliana Sarah Scott Rose Trust (Insider) Sell 5,000 shares, Harrison William Scott Trust (Insider) Sell 9,390 shares, IXL Ltd Liability Co (Insider) Sell 5,000 shares, IXL Ltd Liability Co (Insider) Sell 9,390 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-18 | Harper Grace Scott Trust | Insider | Sell | 9,390 | $339,073 |
| 2026-06-18 | Juliana Sarah Scott Rose Trust | Insider | Sell | 5,000 | $179,900 |
| 2026-06-18 | Harrison William Scott Trust | Insider | Sell | 9,390 | $339,073 |
| 2026-06-18 | IXL Ltd Liability Co | Insider | Sell | 5,000 | $179,750 |
| 2026-06-18 | IXL Ltd Liability Co | Insider | Sell | 9,390 | $339,073 |
| 2026-06-18 | IXL Ltd Liability Co | Insider | Sell | 4,500 | $163,305 |
| 2026-06-18 | Harrison William Scott Trust | Insider | Sell | 4,500 | $163,305 |
| 2026-06-18 | SCOTT JULIE A | Insider | Sell | 5,000 | $179,750 |
| 2026-06-18 | Juliana Sarah Scott Rose Trust | Insider | Sell | 5,000 | $179,750 |
| 2026-06-18 | Jonathan Scott as Trustee of the Jonathan R Scott Trust Dated as of 4/21/04 | Insider | Sell | 9,390 | $339,073 |
| 2026-06-18 | Jonathan Scott as Trustee of the Jonathan R Scott Trust Dated as of 4/21/04 | Insider | Sell | 4,500 | $163,305 |
| 2026-06-18 | Scott Jonathan R | Insider | Sell | 9,390 | $339,073 |
| 2026-06-18 | Scott Jonathan R | Insider | Sell | 4,500 | $163,305 |
| 2026-06-18 | Elizabeth Lauren Scott Rose Trust | Insider | Sell | 5,000 | $179,750 |
| 2026-06-18 | Holland Elizabeth Scott Trust | Insider | Sell | 9,390 | $339,073 |
| 2026-06-18 | Holland Elizabeth Scott Trust | Insider | Sell | 4,500 | $163,305 |
| 2026-06-18 | Harper Grace Scott Trust | Insider | Sell | 4,500 | $163,305 |
| 2026-06-18 | SCOTT JULIE A | Insider | Sell | 5,000 | $179,900 |
| 2026-06-18 | Elizabeth Lauren Scott Rose Trust | Insider | Sell | 5,000 | $179,900 |
| 2026-06-18 | Julie A Scott Rose Trustee of the Julie A Scott Rose Trust Dated 5-14-2002 | Insider | Sell | 5,000 | $179,850 |
| 2026-06-18 | Julie A Scott Rose Trustee of the Julie A Scott Rose Trust Dated 5-14-2002 | Insider | Sell | 5,000 | $179,900 |
| 2026-06-18 | IXL Ltd Liability Co | Insider | Sell | 5,000 | $179,900 |
| 2026-06-18 | SCOTT JULIE A | Insider | Sell | 5,000 | $179,850 |
| 2026-06-18 | Elizabeth Lauren Scott Rose Trust | Insider | Sell | 5,000 | $179,850 |
| 2026-06-18 | Julie A Scott Rose Trustee of the Julie A Scott Rose Trust Dated 5-14-2002 | Insider | Sell | 5,000 | $179,750 |
Source: SEC Form 4 filings · as of 2026-06-18