| SC 13D/A | 2024-04-04 | SCOTT JAMES R | FIRST INTERSTATE BANCSYSTEM INC | - | - | EDGAR |
| SC 13G/A | 2024-02-13 | VANGUARD GROUP INC | FIRST INTERSTATE BANCSYSTEM INC | 9,180,537 | 8.7% | EDGAR |
| SC 13G | 2024-02-09 | FMR LLC | FIRST INTERSTATE BANCSYSTEM INC | 6,605,392 | 6.3% | EDGAR |
| SC 13G | 2024-01-30 | FRANKLIN MUTUAL ADVISERS LLC | FIRST INTERSTATE BANCSYSTEM INC | 5,384,069 | 5.1% | EDGAR |
| SC 13G/A | 2024-01-26 | BlackRock Inc. | FIRST INTERSTATE BANCSYSTEM INC | 8,267,067 | 7.9% | EDGAR |
| SC 13D/A | 2023-12-21 | SCOTT JAMES R | FIRST INTERSTATE BANCSYSTEM INC | 486,592 | 0.5% | EDGAR |
| SC 13G/A | 2023-02-14 | FIRST INTERSTATE BANCSYSTEM INC | FIRST INTERSTATE BANK | 4,039,301 | 3.9% | EDGAR |
| SC 13G/A | 2023-02-09 | VANGUARD GROUP INC | FIRST INTERSTATE BANCSYSTEM INC | 7,885,516 | 7.6% | EDGAR |
| SC 13G/A | 2023-02-08 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | FIRST INTERSTATE BANCSYSTEM INC | 2,494,554 | 2.4% | EDGAR |
| SC 13G/A | 2023-02-01 | BlackRock Inc. | FIRST INTERSTATE BANCSYSTEM INC | 6,537,202 | 6.3% | EDGAR |
| SC 13G/A | 2022-05-09 | BlackRock Inc. | FIRST INTERSTATE BANCSYSTEM INC | 8,524,922 | 7.8% | EDGAR |
| SC 13D/A | 2022-03-31 | FIRST INTERSTATE BANCSYSTEM INC | FIRST INTERSTATE BANCSYSTEM INC | 486,592 | 0.4% | EDGAR |
| SC 13G/A | 2022-02-14 | MACQUARIE GROUP LTD | FIRST INTERSTATE BANCSYSTEM INC | 2,433,475 | 3.9% | EDGAR |
| SC 13G/A | 2022-02-10 | VANGUARD GROUP INC | FIRST INTERSTATE BANCSYSTEM INC | 3,583,517 | 8.6% | EDGAR |
| SC 13D/A | 2022-02-04 | FIRST INTERSTATE BANCSYSTEM INC | FIRST INTERSTATE BANCSYSTEM INC | 486,592 | 0.4% | EDGAR |
| SC 13G/A | 2022-02-02 | FIRST INTERSTATE BANCSYSTEM INC | FIRST INTERSTATE BANK | 4,182,307 | 9.2% | EDGAR |
| SC 13G | 2022-02-02 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | FIRST INTERSTATE BANCSYSTEM INC | 2,805,250 | 6.7% | EDGAR |
| SC 13G/A | 2022-01-27 | BlackRock Inc. | FIRST INTERSTATE BANCSYSTEM INC | 5,399,116 | 12.9% | EDGAR |
| SC 13G/A | 2022-01-25 | BlackRock Inc. | FIRST INTERSTATE BANCSYSTEM INC | 5,399,116 | 12.9% | EDGAR |
| SC 13D/A | 2021-09-17 | FIRST INTERSTATE BANCSYSTEM INC | FIRST INTERSTATE BANCSYSTEM INC | 486,592 | 1.2% | EDGAR |