Knife River Corporation (KNF) — SEC filings
Recent SEC filings for Knife River Corporation — 10-K, 10-Q, 8-K, proxy statements, and insider transactions.
| Form Type | Filing Date | Accepted Date |
|---|---|---|
| 11-K | 2026-06-17 | 2026-06-17 |
| 4 | 2026-05-21 | 2026-05-21 |
| 4 | 2026-05-21 | 2026-05-21 |
| 4 | 2026-05-21 | 2026-05-21 |
| 4 | 2026-05-21 | 2026-05-21 |
| 4 | 2026-05-21 | 2026-05-21 |
| 4 | 2026-05-21 | 2026-05-21 |
| 3 | 2026-05-21 | 2026-05-21 |
| 8-K | 2026-05-21 | 2026-05-21 |
| 8-K | 2026-05-18 | 2026-05-18 |
| SC 13G/A | 2026-05-15 | 2026-05-15 |
| 10-Q | 2026-05-05 | 2026-05-05 |
| 8-K | 2026-05-05 | 2026-05-05 |
| SC 13G | 2026-04-30 | 2026-04-30 |
| ARS | 2026-04-06 | 2026-04-06 |
| DEFA14A | 2026-04-06 | 2026-04-06 |
| DEF 14A | 2026-04-06 | 2026-04-06 |
| 4 | 2026-04-01 | 2026-04-01 |
| SC 13G/A | 2026-03-27 | 2026-03-27 |
| 4 | 2026-03-09 | 2026-03-09 |
Recent SEC filings.