🕵️ First Interstate Bancsystem, Inc. ($FIBK)

SEC insider & ownership activity, last 12 months · CIK 860413 · every row links its SEC filing

Over the last 12 months insiders sold $9.1M with no open-market buying against it. Jonathan R. Scott sold $5.5M (Oct–Sep). BlackRock, Inc. added 6.3% → 12.9%. No red-flag 8-Ks in the window.

🚨 3 signals active — planned-vs-executed verdicts, pre-event flags, and cluster context live in the API and the alerts bot.
Oct 2025: net -$1.2M Nov 2025: net -$2.5M Dec 2025: net -$328K Jan 2026: net -$182K Feb 2026: net +$0 Mar 2026: net -$100K Apr 2026: net -$1.9M May 2026: net +$0 Jun 2026: net -$1.5M Jul 2026: net -$403K Aug 2026: net +$0 Sep 2026: net -$1.0M
Monthly net open-market insider flow, last 12 months (up = net buying)

Insider flow

0 buyers, $0 (0 lots) · 4 sellers, $9.1M (25 lots)

InsiderBuysBoughtSellsSoldLast
Jonathan R. Scott0 15$5.5MSep 14, 2026
John M. Heyneman Jr.0 3$2.1MNov 21, 2025
Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management CO- (trustee)0 3$953KDec 1, 2025
Julie A. Scott0 4$641KSep 16, 2026

5%+ holders

HolderStakeClassScheduleEvent
BlackRock, Inc. 12.9% 13GJan 8, 2026 filing ↗
State Street Corporation 6.4% 13GAug 7, 2026 filing ↗
Vanguard Portfolio Management 5.5% 13GApr 29, 2026 filing ↗
Wellington Management Company LLP 5.4% 13GNov 12, 2025 filing ↗
Dimensional Fund Advisors LP 5.2% 13GJul 15, 2025 filing ↗
FMR LLC 5.0% 13GAug 6, 2025 filing ↗
Abigail P. Johnson 5.0% 13GAug 6, 2025 filing ↗

Planned insider sales (Form 144)

SellerPlannedApprox. sale date
Jonathan R. Scott Trust DTD 11/13/2004$554KSep 11, 2026 filing ↗
Jonathan R. Scott Trust DTD 11/13/2004$804KJul 16, 2026 filing ↗
Julie Scott ROSE Trust$540KJun 18, 2026 filing ↗
Jonathan R. Scott Trust DTD 11/13/2004$495KJun 17, 2026 filing ↗
Jonathan R. Scott Trust DTD 11/13/2004$2.4MApr 30, 2026 filing ↗
Lorrie F. Asker$60KFeb 11, 2026 filing ↗
Quinn T. Heyneman$23KFeb 3, 2026 filing ↗
Jonathan R. Scott Trust DTD 11/13/2004$360KJan 5, 2026 filing ↗
JOHN Heyneman JR, Trust Non-Managed Agency$944KNov 21, 2025 filing ↗
Bench Ranch LLC$482KNov 11, 2025 filing ↗
AWE' LLC$641KNov 10, 2025 filing ↗
Jennifer R Scott Trust$150KNov 3, 2025 filing ↗
Jonathan R. Scott Trust DTD 11/13/2004$225KOct 29, 2025 filing ↗
Jonathan R. Scott Trust DTD 11/13/2004$637KOct 7, 2025 filing ↗

Material events (8-K)

ItemEvent date
Officer/director changes (5.02)Sep 14, 2026 filing ↗
Financial Statements and Exhibits (9.01)Sep 14, 2026 filing ↗
Officer/director changes (5.02)Aug 21, 2026 filing ↗
Financial Statements and Exhibits (9.01)Aug 21, 2026 filing ↗
Earnings (2.02)Jul 23, 2026 filing ↗
Reg FD disclosure (7.01)Jul 23, 2026 filing ↗
Other events (8.01)Jul 23, 2026 filing ↗
Financial Statements and Exhibits (9.01)Jul 23, 2026 filing ↗
Officer/director changes (5.02)Jul 13, 2026 filing ↗
Financial Statements and Exhibits (9.01)Jul 13, 2026 filing ↗
Officer/director changes (5.02)Jul 9, 2026 filing ↗
Financial Statements and Exhibits (9.01)Jul 9, 2026 filing ↗
Officer/director changes (5.02)May 27, 2026 filing ↗
Charter/bylaw changes (5.03)May 27, 2026 filing ↗
Shareholder vote (5.07)May 27, 2026 filing ↗
Financial Statements and Exhibits (9.01)May 27, 2026 filing ↗
Officer/director changes (5.02)May 11, 2026 filing ↗
Financial Statements and Exhibits (9.01)May 11, 2026 filing ↗
Earnings (2.02)Apr 29, 2026 filing ↗
Reg FD disclosure (7.01)Apr 29, 2026 filing ↗
Other events (8.01)Apr 29, 2026 filing ↗
Financial Statements and Exhibits (9.01)Apr 29, 2026 filing ↗
Earnings (2.02)Jan 28, 2026 filing ↗
Reg FD disclosure (7.01)Jan 28, 2026 filing ↗
Other events (8.01)Jan 28, 2026 filing ↗
Financial Statements and Exhibits (9.01)Jan 28, 2026 filing ↗
Officer/director changes (5.02)Nov 14, 2025 filing ↗
Financial Statements and Exhibits (9.01)Nov 14, 2025 filing ↗
Earnings (2.02)Oct 29, 2025 filing ↗
Reg FD disclosure (7.01)Oct 29, 2025 filing ↗