FIBK insider buying and SEC filings, explained
First Interstate Bancsystem Inc. · CIK 860413
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$8.5M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 30–Nov 2, 2026 | Sale | James R. Scott Jr (Director and 10% owner) sold 3,158 shares between Oct 30 and Nov 2 at about $38.00 ($120K). Holdings down 4% to 77,634 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 3, 2026, 1:22 PM ET |
| Oct 23–26, 2026 | Sale | Jonathan R Scott (10% owner) sold 5,000 shares indirectly between Oct 23 and Oct 26 at about $37.26 ($186K). Indirect holdings down 1% to 807,738 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Oct 26, 2026, 3:45 PM ET |
| Oct 22, 2026 | Sale | Jonathan R Scott (10% owner) sold 5,000 shares indirectly at about $36.90 ($185K). Indirect holdings down 1% to 812,738 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Oct 23, 2026, 1:43 PM ET |
| Sep 16, 2026 | Sale | Julie A. Scott (10% owner) sold 2,700 shares indirectly at $37.64 ($102K). Indirect holdings down 1% to 484,309 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 4 other reporting owners. | SEC filing Filed Sep 16, 2026 |
| Sep 14, 2026 | Sale | Jonathan R Scott (10% owner) sold 8,071 shares indirectly at about $37.29 ($301K). Indirect holdings down 1% to 817,738 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Sep 14, 2026 |
| Sep 11, 2026 | Sale | Jonathan R Scott (10% owner) sold 16,929 shares indirectly at about $37.03 ($627K). Indirect holdings down 2% to 825,809 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Sep 14, 2026 |
| Jul 16, 2026 | Sale | Jonathan R Scott (10% owner) sold 10,000 shares indirectly at about $40.30 ($403K). Indirect holdings down 1% to 842,738 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Jul 16, 2026 |
| Jun 18, 2026 | Sale | Julie A. Scott (10% owner) sold 15,000 shares indirectly at about $35.97 ($540K). Indirect holdings down 3% to 488,359 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 4 other reporting owners. | SEC filing Filed Jun 18, 2026 |
| Jun 18, 2026 | Sale | Jonathan R Scott (10% owner) sold 9,390 shares indirectly at about $36.11 ($339K). Indirect holdings down 1% to 852,738 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Jun 18, 2026 |
| Jun 17, 2026 | Sale | Jonathan R Scott (10% owner) sold 4,500 shares indirectly at about $36.29 ($163K). Indirect holdings down 1% to 862,128 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Jun 18, 2026 |
| Jun 4, 2026 | Sale | Jonathan R Scott (10% owner) sold 12,892 shares indirectly at about $35.58 ($459K). Indirect holdings down 1% to 866,628 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Jun 4, 2026 |
| Apr 30, 2026 | Sale | Jonathan R Scott (10% owner) sold 53,504 shares indirectly at about $35.42 ($1.9M). Indirect holdings down 6% to 879,520 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed May 1, 2026 |
| Mar 26, 2026 | Sale | Jonathan R Scott (10% owner) sold 3,000 shares indirectly at about $33.45 ($100K). Indirect holdings down <1% to 933,024 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Mar 27, 2026 |
| Jan 5–6, 2026 | Sale | Jonathan R Scott (10% owner) sold 5,000 shares indirectly between Jan 5 and Jan 6 at about $36.46 ($182K). Indirect holdings down 1% to 936,024 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Jan 6, 2026 |
| Dec 1, 2025 | Sale | Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees (10% owner) sold 10,000 shares indirectly at $32.75 ($328K). Indirect holdings down 4% to 224,460 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 1, 2025 |
| Nov 21, 2025 | Sale | John M. Heyneman Jr. (Director and 10% owner) sold 30,432 shares indirectly at $31.03 ($944K). Indirect holdings down 2% to 1,414,636 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 4 other reporting owners. | SEC filing Filed Nov 25, 2025 |
| Nov 10–11, 2025 | Sale | John M. Heyneman Jr. (Director and 10% owner) sold 35,000 shares indirectly (by entity) between Nov 10, 2025 and Nov 11, 2025 at about $32.09 ($1.1M). Holdings by entity down 30% to 47,482 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 12, 2025 |
| Nov 3, 2025 | Sale | Jonathan R Scott (10% owner) sold 4,800 shares indirectly at $31.27 ($150K). Indirect holdings down 1% to 941,024 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 5 other reporting owners. | SEC filing Filed Nov 3, 2025 |
| Nov 3, 2025 | Sale | Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees (10% owner) sold 10,000 shares indirectly at $30.99 ($310K). Indirect holdings down 4% to 234,460 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 3, 2025 |
42 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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