| 2026-07-23 | Press release | First Interstate BancSystem, Inc. Announces Second Quarter Earnings Release and Conference Call |
| 2026-05-27 | Presentation | Download PDF file, (opens in new window) |
| 2026-04-29 | Press release | First Interstate BancSystem, Inc. Announces First Quarter Earnings Release and Conference Call |
| 2026-01-28 | Press release | First Interstate BancSystem, Inc. Reports Fourth Quarter Earnings |
| 2026-01-28 | Press release | First Interstate BancSystem, Inc. Announces Fourth Quarter Earnings Release and Conference Call |
| 2025-04-03 | Annual report | PDF (opens in new window) |
| 2024-05-06 | Press release | Q1 |
| 2023-11-05 | Press release | Q3 |
| 2023-08-05 | Press release | Q2 |
| 2023-04-25 | Press release | Q1 |
| 2023-02-05 | Press release | Q4 |
| 2023-01-26 | Presentation | Q4 (opens in new window) |
| 2022-10-25 | Presentation | Q3 (opens in new window) |
| 2022-10-24 | Press release | Q3 |
| 2022-07-26 | Presentation | Q2 (opens in new window) |
| 2022-07-25 | Press release | Q2 |
| 2022-05-06 | Press release | Q1 |
| 2022-04-28 | Presentation | Q1 (opens in new window) |
| 2022-01-27 | Presentation | Download PDF
(opens in new window) |
| 2021-11-05 | Press release | Q3 |
| 2021-10-26 | Presentation | Q3 (opens in new window) |
| 2021-07-27 | Presentation | Q2 (opens in new window) |
| 2021-04-27 | Presentation | Q1 (opens in new window) |
| 2021-03-12 | Annual report | PDF (opens in new window) |
| 2021-01-28 | Presentation | Q4 (opens in new window) |
| 2020-10-26 | Presentation | Q3 (opens in new window) |
| 2020-04-30 | Presentation | Q1 (opens in new window) |
| Press release | First Interstate BancSystem, Inc. Reports Third Quarter Earnings |
| Press release | First Interstate BancSystem, Inc. Reports Fourth Quarter Earnings |
| Press release | First Interstate BancSystem, Inc. Reports First Quarter Earnings |
| Press release | First Interstate BancSystem, Inc. Announces Second Quarter Earnings Release and Conference Call |
| Press release | First Interstate BancSystem, Inc. Announces Pricing of Subordinated Notes Offering |
| Press release | First Interstate BancSystem, Inc. Announces Fourth Quarter Earnings Release and Conference Call |
| Press release | First Interstate BancSystem, Inc. Announces First Quarter Earnings Release and Conference Call |
| Press release | First Interstate BancSystem, Inc. Announces Chief Financial Officer Succession |
| Press release | David P. Della Camera Becomes CFO of First Interstate BancSystem, Inc. |
| Press release | First Interstate BancSystem, Inc. Reports Third Quarter Earnings |
| Press release | First Interstate BancSystem, Inc. Reports Fourth Quarter Earnings |
| Press release | First Interstate BancSystem, Inc. Announces Second Quarter Earnings Release and Conference Call |
| Press release | First Interstate BancSystem, Inc. Announces President and CEO Kevin P. Riley’s Retirement |