FIRST INTERSTATE BANCSYSTEM INC - FIBK
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 46
Latest filed: Sep 16, 2026
| Form | Count |
|---|---|
| 4 | 30 |
| 8-K | 8 |
| 144 | 5 |
| SCHEDULE 13G/A | 2 |
| SCHEDULE 13G | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Sep 16, 2026 | 8-K | Sep 14, 2026 | 0000860413-26-000092 | View |
| Sep 16, 2026 | 4 | Sep 16, 2026 | 0001493152-26-042992 | View |
| Sep 16, 2026 | 4 | Sep 14, 2026 | 0002154828-26-000005 | View |
| Sep 14, 2026 | 4 | Sep 14, 2026 | 0001493152-26-042633 | View |
| Sep 14, 2026 | 4 | Sep 11, 2026 | 0001493152-26-042536 | View |
| Sep 11, 2026 | 144 | — | 0001958244-26-000591 | View |
| Aug 21, 2026 | 8-K | Aug 21, 2026 | 0000860413-26-000088 | View |
| Jul 28, 2026 | 4 | Jul 27, 2026 | 0001493152-26-035055 | View |
| Jul 24, 2026 | 4 | Jul 22, 2026 | 0001196952-26-000004 | View |
| Jul 24, 2026 | 4 | Jul 22, 2026 | 0002146309-26-000004 | View |
| Jul 23, 2026 | 8-K | Jul 23, 2026 | 0000860413-26-000081 | View |
| Jul 16, 2026 | 4 | Jul 16, 2026 | 0001493152-26-033609 | View |
| Jul 16, 2026 | 144 | — | 0001958244-26-000458 | View |
| Jul 16, 2026 | 8-K | Jul 13, 2026 | 0000860413-26-000078 | View |
| Jul 09, 2026 | 8-K | Jul 09, 2026 | 0000860413-26-000075 | View |
| Jun 18, 2026 | 4 | Jun 18, 2026 | 0001493152-26-029403 | View |
| Jun 18, 2026 | 4 | Jun 18, 2026 | 0001493152-26-029300 | View |
| Jun 18, 2026 | 144 | — | 0001950047-26-006304 | View |
| Jun 18, 2026 | 4 | Jun 17, 2026 | 0001493152-26-029217 | View |
| Jun 17, 2026 | 144 | — | 0001958244-26-000390 | View |
| Jun 04, 2026 | 4 | Jun 04, 2026 | 0001493152-26-027328 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0000860413-26-000052 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0000860413-26-000055 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0000860413-26-000069 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0001199246-26-000002 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0001697127-26-000007 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0001838577-26-000007 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0001548048-26-000002 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0001594614-26-000002 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0001284209-26-000002 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0002129553-26-000006 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0002071416-26-000006 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0002129338-26-000007 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0001572624-26-000002 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0001812520-26-000003 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0002003084-26-000006 | View |
| Jun 03, 2026 | 4 | Jun 01, 2026 | 0002090710-26-000004 | View |
| May 29, 2026 | 8-K | May 27, 2026 | 0000860413-26-000048 | View |
| May 15, 2026 | SCHEDULE 13G/A | — | 0000902219-26-000149 | View |
| May 13, 2026 | 8-K | May 11, 2026 | 0000860413-26-000041 | View |
| May 01, 2026 | 4 | Apr 30, 2026 | 0001493152-26-020876 | View |
| Apr 30, 2026 | 144 | — | 0001958244-26-000242 | View |
| Apr 29, 2026 | 8-K | Apr 29, 2026 | 0000860413-26-000034 | View |
| Apr 29, 2026 | SCHEDULE 13G | — | 0002100121-26-000410 | View |
| Mar 27, 2026 | 4 | Mar 26, 2026 | 0001493152-26-013130 | View |
| Mar 26, 2026 | SCHEDULE 13G/A | — | 0000102909-26-000489 | View |