Knife River Corp — All Filings
162 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-001683 | Mar 27, 2026 | — |
| 4 | — | 0001225208-26-003419 | Mar 9, 2026 | Mar 6, 2026 |
| 4 | — | 0001225208-26-003295 | Mar 5, 2026 | Mar 4, 2026 |
| 4 | — | 0001225208-26-003294 | Mar 5, 2026 | Mar 4, 2026 |
| 4 | — | 0001225208-26-003293 | Mar 5, 2026 | Mar 4, 2026 |
| 4 | — | 0001225208-26-003292 | Mar 5, 2026 | Mar 4, 2026 |
| 4 | — | 0001225208-26-003291 | Mar 5, 2026 | Mar 4, 2026 |
| 4 | — | 0001225208-26-003290 | Mar 5, 2026 | Mar 4, 2026 |
| 10-K | KNIFE RIVER FORM 10-K 2025 | 0001955520-26-000003 | Feb 20, 2026 | Dec 31, 2025 |
| 4 | — | 0001225208-26-001964 | Feb 17, 2026 | Feb 12, 2026 |
| 4 | — | 0001225208-26-001963 | Feb 17, 2026 | Feb 12, 2026 |
| 4 | — | 0001225208-26-001962 | Feb 17, 2026 | Feb 12, 2026 |
| 4 | — | 0001225208-26-001960 | Feb 17, 2026 | Feb 12, 2026 |
| 4 | — | 0001225208-26-001959 | Feb 17, 2026 | Feb 12, 2026 |
| 4 | — | 0001225208-26-001958 | Feb 17, 2026 | Feb 12, 2026 |
| 8-K | KNIFE RIVER CORPORATION 8-K | 0001628280-26-008306 | Feb 17, 2026 | — |
| SCHEDULE 13G/A | — | 0000080255-25-000846 | Nov 14, 2025 | — |
| 10-Q | KNIFE RIVER FORM 10-Q 09-30-2025 | 0001955520-25-000069 | Nov 5, 2025 | Sep 30, 2025 |
| 8-K | KNIFE RIVER CORPORATION FORM 8-K | 0001955520-25-000065 | Nov 4, 2025 | — |
| SCHEDULE 13G | — | 0000080255-25-000611 | Aug 14, 2025 | — |
| 10-Q | KNIFE RIVER FORM 10-Q 06-30-2025 | 0001955520-25-000060 | Aug 5, 2025 | Jun 30, 2025 |
| 8-K | KNIFE RIVER CORPORATION FORM 8-K | 0001955520-25-000057 | Aug 5, 2025 | — |
| 11-K | KNIFE RIVER CORPORATION FORM 11-K | 0001955520-25-000048 | Jun 12, 2025 | Dec 31, 2024 |
| 8-K | 8-K | 0001955520-25-000043 | May 28, 2025 | May 22, 2025 |
| 4 | — | 0001225208-25-005474 | May 27, 2025 | May 22, 2025 |
| 4 | — | 0001225208-25-005473 | May 27, 2025 | May 22, 2025 |
| 4 | — | 0001225208-25-005472 | May 27, 2025 | May 22, 2025 |
| 4 | — | 0001225208-25-005471 | May 27, 2025 | May 22, 2025 |
| 4 | — | 0001225208-25-005470 | May 27, 2025 | May 22, 2025 |
| 4 | — | 0001225208-25-005469 | May 27, 2025 | May 22, 2025 |
| UPLOAD | — | 0000000000-25-005587 | May 27, 2025 | — |
| CORRESP | — | 0001955520-25-000038 | May 14, 2025 | — |
| UPLOAD | — | 0000000000-25-004880 | May 8, 2025 | — |
| 10-Q | KNIFE RIVER FORM 10-Q 03-31-2025 | 0001955520-25-000034 | May 6, 2025 | Mar 31, 2025 |
| 8-K | KNIFE RIVER CORPORATION FORM 8-K | 0001955520-25-000031 | May 6, 2025 | — |
| 3 | — | 0001225208-25-004434 | Apr 25, 2025 | Apr 19, 2025 |
| ARS | KRC 2024 ANNUAL REPORT | 0001955520-25-000028 | Apr 7, 2025 | Dec 31, 2024 |
| DEFA14A | DEFA14A | 0001955520-25-000027 | Apr 7, 2025 | — |
| DEF 14A | DEF 14A | 0001955520-25-000026 | Apr 7, 2025 | May 22, 2025 |
| PRE 14A | PRE 14A | 0001955520-25-000018 | Mar 28, 2025 | May 22, 2025 |
| 8-K | 8-K | 0001955520-25-000016 | Mar 28, 2025 | — |
| 8-K | 8-K | 0001955520-25-000013 | Mar 10, 2025 | Mar 7, 2025 |
| 4 | — | 0001225208-25-002700 | Mar 3, 2025 | Feb 28, 2025 |
| 4 | — | 0001225208-25-002699 | Mar 3, 2025 | Feb 27, 2025 |
| 4 | — | 0001225208-25-002698 | Mar 3, 2025 | Feb 27, 2025 |
| 4 | — | 0001225208-25-002696 | Mar 3, 2025 | Feb 27, 2025 |
| 4 | — | 0001225208-25-002693 | Mar 3, 2025 | Feb 27, 2025 |
| 4 | — | 0001225208-25-002692 | Mar 3, 2025 | Feb 27, 2025 |
| 4 | — | 0001225208-25-002691 | Mar 3, 2025 | Feb 27, 2025 |
| 10-K | KNIFE RIVER FORM 10-K 2024 | 0001955520-25-000010 | Feb 21, 2025 | Dec 31, 2024 |