KNF - CIK 0001955520
Knife River Corp has filed 176 documents with the SEC between 2022 and 2026. The most frequent type is insider trade (62 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.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Quarterly report | 10-Q | 2025-05-06 | 2025-03-31 |
| Major company event | 8-K | 2025-05-06 | 2025-05-06 |
| New insider ownership | 3 | 2025-04-25 | 2025-04-19 |
| Annual report to shareholders | ARS | 2025-04-07 | 2024-12-31 |
| Proxy materials | DEFA14A | 2025-04-07 | - |
| Proxy statement | DEF 14A | 2025-04-07 | 2025-05-22 |
| PRE 14A | - | 2025-03-28 | 2025-05-22 |
| Major company event | 8-K | 2025-03-28 | 2025-03-28 |
| Major company event | 8-K | 2025-03-10 | 2025-03-07 |
| Insider trade | 4 | 2025-03-03 | 2025-02-28 |
| Insider trade | 4 | 2025-03-03 | 2025-02-27 |
| Insider trade | 4 | 2025-03-03 | 2025-02-27 |
| Insider trade | 4 | 2025-03-03 | 2025-02-27 |
| Insider trade | 4 | 2025-03-03 | 2025-02-27 |
| Insider trade | 4 | 2025-03-03 | 2025-02-27 |
| Insider trade | 4 | 2025-03-03 | 2025-02-27 |
| Annual report | 10-K | 2025-02-21 | 2024-12-31 |
| Major company event | 8-K | 2025-02-13 | 2025-02-13 |
| Major company event | 8-K | 2025-01-17 | 2025-01-17 |
| Insider trade | 4 | 2025-01-02 | 2024-12-31 |
| Major company event | 8-K | 2024-12-26 | 2024-12-20 |
| Quarterly report | 10-Q | 2024-11-04 | 2024-09-30 |
| Major company event | 8-K | 2024-11-04 | 2024-11-04 |
| Insider trade | 4 | 2024-10-01 | 2024-09-30 |
| Major company event | 8-K | 2024-08-21 | 2024-08-20 |
| Quarterly report | 10-Q | 2024-08-06 | 2024-06-30 |
| Major company event | 8-K | 2024-08-06 | 2024-08-06 |
| Insider trade | 4 | 2024-06-28 | 2024-06-27 |
| Insider trade | 4 | 2024-06-28 | 2024-06-28 |
| Major company event | 8-K | 2024-06-27 | 2024-06-27 |
| New insider ownership | 3 | 2024-06-27 | 2024-06-27 |
| Employee plan annual report | 11-K | 2024-06-11 | 2023-12-31 |
| Major company event | 8-K | 2024-05-17 | 2024-05-14 |
| Insider trade | 4 | 2024-05-16 | 2024-05-15 |
| Insider trade | 4 | 2024-05-16 | 2024-05-15 |
| Insider trade | 4 | 2024-05-16 | 2024-05-15 |
| Insider trade | 4 | 2024-05-16 | 2024-05-15 |
| Insider trade | 4 | 2024-05-16 | 2024-05-15 |
| New insider ownership | 3 | 2024-05-15 | 2024-05-14 |
| Quarterly report | 10-Q | 2024-05-07 | 2024-03-31 |
| Major company event | 8-K | 2024-05-07 | 2024-05-07 |
| Insider trade | 4 | 2024-04-01 | 2024-03-29 |
| Annual report to shareholders | ARS | 2024-03-29 | 2023-12-31 |
| Proxy materials | DEFA14A | 2024-03-29 | - |
| Proxy statement | DEF 14A | 2024-03-29 | 2024-05-14 |
| Insider trade | 4 | 2024-03-04 | 2024-02-29 |
| Annual report | 10-K | 2024-02-27 | 2023-12-31 |
| Insider trade | 4 | 2024-02-26 | 2024-02-22 |
| Insider trade | 4 | 2024-02-26 | 2024-02-22 |
| Insider trade | 4 | 2024-02-26 | 2024-02-22 |