| 16 Mar 2026 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 1,375 | 33.22 USD | |
| 15 Mar 2026 | GRANT_AWARD | FIRST INTERSTATE BANCSYSTEM INC | 3,951 | 33.13 USD | |
| 17 Mar 2025 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 528 | 29.14 USD | |
| 17 Mar 2025 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 230 | 29.14 USD | |
| 15 Mar 2025 | GRANT_AWARD | FIRST INTERSTATE BANCSYSTEM INC | 4,404 | 0.00 USD | |
| 17 Mar 2025 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 363 | 29.14 USD | |
| 17 Mar 2025 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 581 | 29.14 USD | |
| 15 Mar 2024 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 159 | 25.21 USD | |
| 15 Mar 2024 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 272 | 25.21 USD | |
| 15 Mar 2024 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 428 | 25.21 USD | |
| 15 Mar 2024 | GRANT_AWARD | FIRST INTERSTATE BANCSYSTEM INC | 5,934 | 0.00 USD | |
| 24 May 2023 | GRANT_AWARD | FIRST INTERSTATE BANCSYSTEM INC | 3,704 | 0.00 USD | |
| 28 Apr 2023 | PURCHASE | FIRST INTERSTATE BANCSYSTEM INC | 1,000 | 25.57 USD | |
| 15 Mar 2023 | GRANT_AWARD | FIRST INTERSTATE BANCSYSTEM INC | 1,220 | 0.00 USD | |
| 15 Mar 2023 | GRANT_AWARD | FIRST INTERSTATE BANCSYSTEM INC | 1,798 | 0.00 USD | |
| 15 Mar 2023 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 238 | 31.39 USD | |
| 15 Mar 2023 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 371 | 31.39 USD | |
| 15 Mar 2023 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 139 | 31.39 USD | |
| 15 Feb 2023 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 285 | 37.31 USD | |
| 15 Mar 2022 | GRANT_AWARD | FIRST INTERSTATE BANCSYSTEM INC | 1,230 | 0.00 USD | |
| 15 Mar 2022 | GRANT_AWARD | FIRST INTERSTATE BANCSYSTEM INC | 2,349 | 0.00 USD | |
| 15 Mar 2022 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 139 | 0.00 USD | |
| 15 Mar 2022 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 374 | 0.00 USD | |
| 15 Feb 2022 | TAX_WITHHOLDING | FIRST INTERSTATE BANCSYSTEM INC | 479 | 38.09 USD | |
| 15 Mar 2021 | GRANT_AWARD | FIRST INTERSTATE BANCSYSTEM INC | 2,236 | 0.00 USD | |