FIBK - Company ID 0000860413
FIRST INTERSTATE BANCSYSTEM INC has filed 2,932 public company documents between 1996 and 2026. The most frequent type is insider trade (1,721 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Type | Filing | Filed | Period covered | Open |
|---|---|---|---|---|
| 8-K | Major company event | 23y ago2002-10-29 | 2002-10-29 | View filing |
| 4 | Insider trade | 23y ago2002-10-21 | 2002-10-16 | View filing |
| S-8 POS | S-8 POS | 23y ago2002-08-28 | - | View filing |
| 8-K | Major company event | 23y ago2002-08-28 | 2002-08-27 | View filing |
| 10-Q | Quarterly report | 23y ago2002-08-05 | 2002-06-30 | View filing |
| 8-K | Major company event | 23y ago2002-07-24 | 2002-07-23 | View filing |
| 11-K | Employee plan annual report | 24y ago2002-06-28 | 2001-12-31 | View filing |
| 10-Q | Quarterly report | 24y ago2002-05-15 | 2002-03-31 | View filing |
| 8-K | Major company event | 24y ago2002-04-26 | 2002-04-25 | View filing |
| 8-A12G | 8-A12G | 24y ago2002-04-15 | - | View filing |
| DEF 14A | Proxy statement | 24y ago2002-04-02 | 2002-05-17 | View filing |
| 10-K405 | 10-K405 | 24y ago2002-03-29 | 2001-12-31 | View filing |
| 8-K | Major company event | 24y ago2002-01-31 | 2002-01-30 | View filing |
| 10-Q | Quarterly report | 24y ago2001-11-13 | 2001-09-30 | View filing |
| S-8 | Employee stock plan | 24y ago2001-09-17 | - | View filing |
| S-8 POS | S-8 POS | 24y ago2001-09-06 | - | View filing |
| 10-Q | Quarterly report | 24y ago2001-08-10 | 2001-06-30 | View filing |
| 8-K | Major company event | 25y ago2001-07-20 | 2001-07-17 | View filing |
| 11-K | Employee plan annual report | 25y ago2001-06-25 | 2000-12-31 | View filing |
| 8-K/A | Major company event (amended) | 25y ago2001-06-08 | 2001-05-25 | View filing |
| 8-K | Major company event | 25y ago2001-06-01 | 2001-05-25 | View filing |
| 10-Q/A | Quarterly report (amended) | 25y ago2001-05-24 | 1997-03-31 | View filing |
| 10-Q/A | Quarterly report (amended) | 25y ago2001-05-24 | 1997-09-30 | View filing |
| 10-Q/A | Quarterly report (amended) | 25y ago2001-05-24 | 1997-06-30 | View filing |
| 10-Q/A | Quarterly report (amended) | 25y ago2001-05-23 | 1998-09-30 | View filing |
| 10-Q/A | Quarterly report (amended) | 25y ago2001-05-23 | 1998-06-30 | View filing |
| 10-Q/A | Quarterly report (amended) | 25y ago2001-05-23 | 1998-03-31 | View filing |
| 10-Q/A | Quarterly report (amended) | 25y ago2001-05-23 | 1999-03-31 | View filing |
| 10-Q/A | Quarterly report (amended) | 25y ago2001-05-23 | 1999-06-30 | View filing |
| 10-Q/A | Quarterly report (amended) | 25y ago2001-05-23 | 1999-09-30 | View filing |
| 10-Q | Quarterly report | 25y ago2001-05-15 | 2001-03-31 | View filing |
| 10-Q/A | Quarterly report (amended) | 25y ago2001-05-10 | 2000-09-30 | View filing |
| 10-Q/A | Quarterly report (amended) | 25y ago2001-05-10 | 2000-06-30 | View filing |
| 10-Q/A | Quarterly report (amended) | 25y ago2001-05-10 | 2000-03-31 | View filing |
| 10-K405/A | 10-K405/A | 25y ago2001-05-09 | 1997-12-31 | View filing |
| 10-K405/A | 10-K405/A | 25y ago2001-05-09 | 1998-12-31 | View filing |
| 10-K405/A | 10-K405/A | 25y ago2001-05-09 | 1999-12-31 | View filing |
| 10-K405 | 10-K405 | 25y ago2001-04-16 | 2000-12-31 | View filing |
| DEF 14A | Proxy statement | 25y ago2001-04-16 | 2001-05-18 | View filing |
| 8-K | Major company event | 25y ago2001-04-05 | 2001-04-02 | View filing |
| NT 10-K | NT 10-K | 25y ago2001-04-05 | 2000-12-31 | View filing |
| 10-Q | Quarterly report | 25y ago2000-11-13 | 2000-09-30 | View filing |
| 10-Q | Quarterly report | 25y ago2000-08-14 | 2000-06-30 | View filing |
| 11-K | Employee plan annual report | 26y ago2000-06-27 | 1999-12-31 | View filing |
| 10-Q | Quarterly report | 26y ago2000-05-12 | 2000-03-31 | View filing |
| DEF 14A | Proxy statement | 26y ago2000-03-28 | 2000-04-27 | View filing |
| 10-K405 | 10-K405 | 26y ago2000-03-13 | 1999-12-31 | View filing |
| 10-Q | Quarterly report | 26y ago1999-11-12 | 1999-09-30 | View filing |
| 10-Q | Quarterly report | 26y ago1999-08-13 | 1999-06-30 | View filing |
| 11-K | Employee plan annual report | 27y ago1999-06-29 | 1998-12-31 | View filing |