Company facts
- Industry
- State Commercial Banks
- Headquarters
- Billings, Montana
- Most recent report
- 10-Q, filed Aug 3, 2026
- Incorporated
- Delaware
- Filings on record
- 1,008+ filings
- On EDGAR
- CIK 860413
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 33
News 8 of 128
Prospectuses and Registrations 8 of 35
- S-3ASR Automatic shelf registration May 26, 2026
- 424B5 Prospectus supplement for an offering Jun 6, 2025
- FWP Free writing prospectus Jun 5, 2025
- FWP Free writing prospectus Jun 5, 2025
- 424B5 Prospectus supplement for an offering Jun 5, 2025
- S-8 Registration statement for an employee plan May 23, 2024
- S-3ASR Automatic shelf registration May 26, 2023
- S-8 Registration statement for an employee plan May 25, 2023
Proxies 8 of 23
- DEFA14A Extra proxy material Apr 16, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 16, 2026
- PRE 14A Preliminary proxy statement Mar 31, 2026
- DEFA14A Extra proxy material May 16, 2025
- DEFA14A Extra proxy material Apr 8, 2025
- DEF 14A Proxy statement for a shareholder vote Apr 8, 2025
- DEFA14A Extra proxy material May 7, 2024
- DEFA14A Extra proxy material Apr 30, 2024
Ownership 8 of 747
- SCHEDULE 13G Large holder reported a passive stake Aug 7, 2026
- 4 Insider reported a trade Jul 28, 2026
- 4 Insider reported a trade Jul 24, 2026
- 4 Insider reported a trade Jul 24, 2026
- 3 Insider reported their initial holding Jul 21, 2026
- 3 Insider reported their initial holding Jul 21, 2026
- 4 Insider reported a trade Jul 16, 2026
- 144 Notice of a proposed sale of restricted stock Jul 16, 2026
Other 8 of 42
- ARS Annual report sent to shareholders Apr 16, 2026
- 305B2 Jun 5, 2025
- ARS Annual report sent to shareholders Apr 8, 2025
- ARS Annual report sent to shareholders Apr 11, 2024
- 8-A12B/A Registration of a security for exchange listing, amended May 25, 2023
- ARS Annual report sent to shareholders Apr 11, 2023
- 15-12G Jul 11, 2022
- 8-A12B/A Registration of a security for exchange listing, amended Jul 8, 2022
Everything here comes from First Interstate Bancsystem Inc's own filings on SEC EDGAR. The filing list is rechecked every hour.