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First Interstate Bancsystem stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+26.8% to $37.80
First Interstate Bancsystem (FIBK) stock rose 27% over the last 252 sessions, to $37.80. On the way it reported 0 quarters, its insiders filed 19 open-market trades and 4 Form 144 notices of planned sales, and the company filed 7 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Nov 2, 2026 | Form 144 | Form 144: James R. Scott plans to sell $118K | +2.8% (+3.3% vs SPY) | +1.6% (+4.4% vs SPY) | — |
| Nov 2, 2026 | Insider sale | Scott James R. Jr sold $118K | +2.8% (+3.3% vs SPY) | +1.6% (+4.4% vs SPY) | — |
| Oct 26, 2026 | Insider sale | Scott Jonathan R sold $156K | +2.4% (+1.7% vs SPY) | +2.3% (+2.9% vs SPY) | — |
| Oct 23, 2026 | Insider sale | Scott Jonathan R sold $31K | −0.3% (+0.2% vs SPY) | +2.9% (+2.2% vs SPY) | — |
| Oct 22, 2026 | Form 144 | Form 144: Jonathan R. Scott Trust dtd 11/13/2004 plans to sell $369K | +3.3% (+4.5% vs SPY) | +5.2% (+5.3% vs SPY) | — |
| Sep 16, 2026 | 8-K | Directors and officers: departures, appointments, pay | −1.4% (−1.0% vs SPY) | −2.5% (−4.8% vs SPY) | −8.6% (−10.4% vs SPY) |
| Sep 16, 2026 | Insider sale | IXL Ltd Liability Co sold $102K | −1.4% (−1.0% vs SPY) | −2.5% (−4.8% vs SPY) | −8.6% (−10.4% vs SPY) |
| Sep 14, 2026 | Insider sale | Jonathan Scott as Trustee of the Jonathan R Scott Trust Dated as of 4/21/04 sold $301K | +1.0% (+1.5% vs SPY) | +1.2% (+1.3% vs SPY) | −5.9% (−8.0% vs SPY) |
| Sep 11, 2026 | Form 144 | Form 144: Jonathan R. Scott Trust dtd 11/13/2004 plans to sell $554K | +0.1% (−0.7% vs SPY) | +0.8% (+0.1% vs SPY) | −6.6% (−9.6% vs SPY) |
| Sep 11, 2026 | Insider sale | IXL Ltd Liability Co sold $627K | +0.1% (−0.7% vs SPY) | +0.8% (+0.1% vs SPY) | −6.6% (−9.6% vs SPY) |
| Aug 21, 2026 | 8-K | Directors and officers: departures, appointments, pay | −0.8% (−1.3% vs SPY) | −1.4% (−2.5% vs SPY) | −2.6% (−4.3% vs SPY) |
| Jul 16, 2026 | 8-K | Directors and officers: departures, appointments, pay | −2.6% (−1.6% vs SPY) | −5.4% (−3.7% vs SPY) | −1.4% (−4.8% vs SPY) |
| Jul 16, 2026 | Form 144 | Form 144: Jonathan R. Scott Trust dtd 11/13/2004 plans to sell $804K | +2.2% (+2.7% vs SPY) | −2.5% (−1.5% vs SPY) | −0.1% (−3.1% vs SPY) |
| Jul 16, 2026 | Insider sale | Jonathan Scott as Trustee of the Jonathan R Scott Trust Dated as of 4/21/04 sold $403K | +2.2% (+2.7% vs SPY) | −2.5% (−1.5% vs SPY) | −0.1% (−3.1% vs SPY) |
| Jul 9, 2026 | 8-K | Directors and officers: departures, appointments, pay | −0.2% (−0.6% vs SPY) | +3.3% (+3.4% vs SPY) | −2.4% (−5.2% vs SPY) |
| Jun 18, 2026 | Insider sale | Jonathan Scott as Trustee of the Jonathan R Scott Trust Dated as of 4/21/04 sold $339K | +2.2% (+1.2% vs SPY) | +7.6% (+8.2% vs SPY) | +7.9% (+7.5% vs SPY) |
| Jun 18, 2026 | Insider sale | Elizabeth Lauren Scott Rose Trust sold $540K | +2.2% (+1.2% vs SPY) | +7.6% (+8.2% vs SPY) | +7.9% (+7.5% vs SPY) |
| Jun 17, 2026 | Insider sale | Jonathan Scott as Trustee of the Jonathan R Scott Trust Dated as of 4/21/04 sold $163K | −2.4% (−1.2% vs SPY) | +3.6% (+5.7% vs SPY) | +7.0% (+7.7% vs SPY) |
| Jun 4, 2026 | Insider sale | IXL Ltd Liability Co sold $459K | +4.0% (+3.6% vs SPY) | +5.4% (+9.3% vs SPY) | +13.8% (+13.9% vs SPY) |
| May 29, 2026 | 8-K | Directors and officers: departures, appointments, pay | −2.5% (−2.7% vs SPY) | −0.1% (+2.4% vs SPY) | +8.0% (+9.0% vs SPY) |
| May 13, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.7% (−0.1% vs SPY) | +3.1% (+3.2% vs SPY) | +8.4% (+8.5% vs SPY) |
| Apr 30, 2026 | Insider sale | Jonathan Scott as Trustee of the Jonathan R Scott Trust Dated as of 4/21/04 sold $1.9M | +3.0% (+2.0% vs SPY) | +5.5% (+2.5% vs SPY) | +4.6% (−1.5% vs SPY) |
| Mar 26, 2026 | Insider sale | Harrison William Scott Trust sold $100K | −0.4% (+1.4% vs SPY) | −0.2% (0.0% vs SPY) | +3.6% (−4.8% vs SPY) |
| Jan 6, 2026 | Insider sale | IXL Ltd Liability Co sold $67K | +2.8% (+2.2% vs SPY) | +1.9% (+0.8% vs SPY) | +5.6% (+5.9% vs SPY) |
| Jan 5, 2026 | Insider sale | IXL Ltd Liability Co sold $115K | +2.1% (+1.4% vs SPY) | +5.3% (+3.7% vs SPY) | +6.3% (+5.4% vs SPY) |
| Dec 1, 2025 | Insider sale | Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management sold $328K | +0.6% (+1.0% vs SPY) | +3.8% (+3.4% vs SPY) | +6.8% (+6.0% vs SPY) |
| Nov 21, 2025 | Insider sale | Rae Ann Morss & John Heyneman Jr., Trustees FBO Rae Ann Morss Exemption Trust Un sold $944K | +2.6% (+1.6% vs SPY) | +7.1% (+2.4% vs SPY) | +16.4% (+11.3% vs SPY) |
| Nov 18, 2025 | 8-K | Directors and officers: departures, appointments, pay | +1.0% (+1.8% vs SPY) | +6.7% (+6.2% vs SPY) | +18.0% (+17.2% vs SPY) |
| Nov 11, 2025 | Insider sale | Heyneman John M Jr. sold $482K | +1.3% (+1.1% vs SPY) | −7.5% (−5.2% vs SPY) | +10.8% (+9.9% vs SPY) |
| Nov 10, 2025 | Insider sale | Heyneman John M Jr. sold $641K | −0.1% (−1.6% vs SPY) | −2.2% (−2.3% vs SPY) | +6.6% (+4.8% vs SPY) |
Insiders’ record here
In the year on the chart, First Interstate Bancsystem's insiders reported 0 open-market buys ($0) and 19 sales ($7.8M). Of the 13 old enough to score, 3 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale +2.3%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
First Interstate Bancsystem: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.