Company facts
- Headquarters
- Bismarck, North Dakota
- Most recent report
- 10-Q, filed Aug 4, 2026
- Incorporated
- Delaware
- Filings on record
- 186 filings
- On EDGAR
- CIK 1955520
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 14
News 8 of 26
Prospectuses and Registrations 7
- 424B4 Final prospectus for an offering Nov 8, 2023
- 424B3 Prospectus supplement for an offering Nov 6, 2023
- 424B4 Final prospectus for an offering Nov 6, 2023
- 424B3 Prospectus supplement for an offering Nov 6, 2023
- S-1 Registration statement for an offering Sep 26, 2023
- S-8 Registration statement for an employee plan Jun 2, 2023
- S-8 Registration statement for an employee plan Jun 2, 2023
Proxies 7
- DEFA14A Extra proxy material Apr 6, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 6, 2026
- DEFA14A Extra proxy material Apr 7, 2025
- DEF 14A Proxy statement for a shareholder vote Apr 7, 2025
- PRE 14A Preliminary proxy statement Mar 28, 2025
- DEFA14A Extra proxy material Mar 29, 2024
- DEF 14A Proxy statement for a shareholder vote Mar 29, 2024
Ownership 8 of 102
- SCHEDULE 13G/A Large holder reported a passive stake, amended Aug 14, 2026
- SCHEDULE 13G Large holder reported a passive stake Aug 12, 2026
- SCHEDULE 13G Large holder reported a passive stake Jul 31, 2026
- 4 Insider reported a trade Jul 1, 2026
- 4 Insider reported a trade May 21, 2026
- 4 Insider reported a trade May 21, 2026
- 4 Insider reported a trade May 21, 2026
- 4 Insider reported a trade May 21, 2026
Other 8 of 30
- 11-K Employee stock plan report Jun 17, 2026
- ARS Annual report sent to shareholders Apr 6, 2026
- 11-K Employee stock plan report Jun 12, 2025
- UPLOAD Comment letter from SEC staff May 27, 2025
- CORRESP Reply to SEC staff May 14, 2025
- UPLOAD Comment letter from SEC staff May 8, 2025
- ARS Annual report sent to shareholders Apr 7, 2025
- 11-K Employee stock plan report Jun 11, 2024
Everything here comes from Knife River Corp's own filings on SEC EDGAR. The filing list is rechecked every hour.