Our Company We are a financial and bank holding company focused on community banking. Since our incorporation in Montana in 1971, we have grown both organically and through strategic acquisitions. As of February 20, 2026, we operated 290 banking offices, including branches and detached drive-up facilities, in communities across 12 states Colorado, Idaho, Iowa, Minnesota, Missouri, Montana, Nebraska, North Dakota, Oregon, South Dakota, Washington, and Wyoming. Through our bank subsidiary, First I...
Q2 FY2026 — expected 2026-09-14
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2026-02-26 | 2025-12-31 | 0000860413-26-000011 | EDGAR | 94K words |
| 2025-02-28 | 2024-12-31 | 0000860413-25-000022 | EDGAR | — |
| 2024-02-29 | 2023-12-31 | 0000860413-24-000016 | EDGAR | — |
| 2023-02-24 | 2022-12-31 | 0000860413-23-000045 | EDGAR | — |
| 2022-02-25 | 2021-12-31 | 0000860413-22-000065 | EDGAR | — |
| 2021-03-01 | 2020-12-31 | 0000860413-21-000102 | EDGAR | — |
| 2020-02-27 | 2019-12-31 | 0000860413-20-000054 | EDGAR | — |
| 2019-02-27 | 2018-12-31 | 0000860413-19-000026 | EDGAR | — |
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2026-08-03 | 2026-06-30 | 0000860413-26-000084 | EDGAR | — |
| 2025-11-06 | 2025-09-30 | 0000860413-25-000165 | EDGAR | 41K words |
| 2025-08-06 | 2025-06-30 | 0000860413-25-000117 | EDGAR | — |
| 2025-05-07 | 2025-03-31 | 0000860413-25-000060 | EDGAR | — |
| 2024-11-04 | 2024-09-30 | 0000860413-24-000130 | EDGAR | — |
| 2024-08-02 | 2024-06-30 | 0000860413-24-000118 | EDGAR | — |
| 2024-05-03 | 2024-03-31 | 0000860413-24-000066 | EDGAR | — |
| 2023-11-03 | 2023-09-30 | 0000860413-23-000186 | EDGAR | — |
| 2023-08-04 | 2023-06-30 | 0000860413-23-000171 | EDGAR | — |
| 2023-05-05 | 2023-03-31 | 0000860413-23-000087 | EDGAR | — |
| 2022-11-07 | 2022-09-30 | 0000860413-22-000202 | EDGAR | — |
| 2022-08-05 | 2022-06-30 | 0000860413-22-000191 | EDGAR | — |
| Filed | Accession | Source | Full Text |
|---|---|---|---|
| 2026-07-23 | 0000860413-26-000081 | EDGAR | — |
| 2026-07-16 | 0000860413-26-000078 | EDGAR | — |
| 2026-01-28 | 0000860413-26-000007 | EDGAR | 16K words |
| 2025-11-18 | 0000860413-25-000168 | EDGAR | — |
| 2025-10-29 | 0000860413-25-000160 | EDGAR | — |
| 2025-10-16 | 0000860413-25-000155 | EDGAR | — |
| 2025-10-14 | 0000860413-25-000152 | EDGAR | — |
| 2025-09-09 | 0000860413-25-000147 | EDGAR | — |
| 2025-09-02 | 0000860413-25-000137 | EDGAR | — |
| 2025-08-28 | 0000860413-25-000129 | EDGAR | — |
176 total filings indexed. 146 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR
| CIK | 0000860413 |
| Ticker | FIBK |
| Exchange | Nasdaq |
| SIC | 6022: State Commercial Banks |
| Incorporated | DE |
| Website | https://www.fibk.com |
| Listed | 2010-03-24 |
This is a static snapshot. For live, structured JSON with cryptographic provenance chain:
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