Browse the latest SEC filings and forms submitted by Knife River Corp (KNF). Access annual reports, quarterly statements, and other official disclosures.
View Insider Transactions for Knife River Corp (KNF).
Search Company Filings →| Form | Filing Date | Description | Link |
|---|---|---|---|
| 8-K | May 18, 2026 | 8-K | View Document |
| SCHEDULE 13G/A | May 15, 2026 | - | View Document |
| 8-K | May 5, 2026 | KNIFE RIVER CORPORATION 8-K | View Document |
| 10-Q | May 5, 2026 | KNIFE RIVER FORM 10-Q 03-31-2026 | View Document |
| SCHEDULE 13G | April 30, 2026 | - | View Document |
| ARS | April 6, 2026 | KRC 2025 ANNUAL REPORT | View Document |
| DEF 14A | April 6, 2026 | DEF 14A | View Document |
| DEFA14A | April 6, 2026 | DEFA14A | View Document |
| 4 | April 1, 2026 | - | View Document |
| SCHEDULE 13G/A | March 27, 2026 | - | View Document |
| 4 | March 9, 2026 | - | View Document |
| 4 | March 5, 2026 | - | View Document |
| 4 | March 5, 2026 | - | View Document |
| 4 | March 5, 2026 | - | View Document |
| 4 | March 5, 2026 | - | View Document |
| 4 | March 5, 2026 | - | View Document |
| 4 | March 5, 2026 | - | View Document |
| 10-K | Feb. 20, 2026 | KNIFE RIVER FORM 10-K 2025 | View Document |
| 4 | Feb. 17, 2026 | - | View Document |
| 8-K | Feb. 17, 2026 | KNIFE RIVER CORPORATION 8-K | View Document |
| 4 | Feb. 17, 2026 | - | View Document |
| 4 | Feb. 17, 2026 | - | View Document |
| 4 | Feb. 17, 2026 | - | View Document |
| 4 | Feb. 17, 2026 | - | View Document |
| 4 | Feb. 17, 2026 | - | View Document |
| SCHEDULE 13G/A | Nov. 14, 2025 | - | View Document |
| 10-Q | Nov. 5, 2025 | KNIFE RIVER FORM 10-Q 09-30-2025 | View Document |
| 8-K | Nov. 4, 2025 | KNIFE RIVER CORPORATION FORM 8-K | View Document |
| SCHEDULE 13G | Aug. 14, 2025 | - | View Document |
| 8-K | Aug. 5, 2025 | KNIFE RIVER CORPORATION FORM 8-K | View Document |
| 10-Q | Aug. 5, 2025 | KNIFE RIVER FORM 10-Q 06-30-2025 | View Document |
| 11-K | June 12, 2025 | KNIFE RIVER CORPORATION FORM 11-K | View Document |
| 8-K | May 28, 2025 | 8-K | View Document |
| 4 | May 27, 2025 | - | View Document |
| 4 | May 27, 2025 | - | View Document |
| 4 | May 27, 2025 | - | View Document |
| UPLOAD | May 27, 2025 | - | View Document |
| 4 | May 27, 2025 | - | View Document |
| 4 | May 27, 2025 | - | View Document |
| 4 | May 27, 2025 | - | View Document |
| CORRESP | May 14, 2025 | - | View Document |
| UPLOAD | May 8, 2025 | - | View Document |
| 10-Q | May 6, 2025 | KNIFE RIVER FORM 10-Q 03-31-2025 | View Document |
| 8-K | May 6, 2025 | KNIFE RIVER CORPORATION FORM 8-K | View Document |
| 3 | April 25, 2025 | - | View Document |
| DEFA14A | April 7, 2025 | DEFA14A | View Document |
| ARS | April 7, 2025 | KRC 2024 ANNUAL REPORT | View Document |
| DEF 14A | April 7, 2025 | DEF 14A | View Document |
| PRE 14A | March 28, 2025 | PRE 14A | View Document |
| 8-K | March 28, 2025 | 8-K | View Document |
| 8-K | March 10, 2025 | 8-K | View Document |
| 4 | March 3, 2025 | - | View Document |
| 4 | March 3, 2025 | - | View Document |
| 4 | March 3, 2025 | - | View Document |
| 4 | March 3, 2025 | - | View Document |
| 4 | March 3, 2025 | - | View Document |
| 4 | March 3, 2025 | - | View Document |
| 4 | March 3, 2025 | - | View Document |
| 10-K | Feb. 21, 2025 | KNIFE RIVER FORM 10-K 2024 | View Document |
| 8-K | Feb. 13, 2025 | KNIFE RIVER CORPORATION 8-K | View Document |
| 8-K | Jan. 17, 2025 | 8-K | View Document |
| 4 | Jan. 2, 2025 | - | View Document |
| 8-K | Dec. 26, 2024 | 8-K | View Document |
| 10-Q | Nov. 4, 2024 | KNIFE RIVER FORM 10-Q 09-30-2024 | View Document |
| 8-K | Nov. 4, 2024 | KNIFE RIVER CORPORATION FORM 8-K | View Document |
| 4 | Oct. 1, 2024 | - | View Document |
| 8-K | Aug. 21, 2024 | 8-K | View Document |
| 8-K | Aug. 6, 2024 | KNIFE RIVER CORPORATION FORM 8-K | View Document |
| 10-Q | Aug. 6, 2024 | KNIFE RIVER FORM 10-Q 06-30-2024 | View Document |
| 4 | June 28, 2024 | - | View Document |
| 4 | June 28, 2024 | - | View Document |
| 3 | June 27, 2024 | - | View Document |
| 8-K | June 27, 2024 | 8-K | View Document |
| 11-K | June 11, 2024 | KNIFE RIVER CORPORATION FORM 11-K | View Document |
| 8-K | May 17, 2024 | 8-K | View Document |
| 4 | May 16, 2024 | - | View Document |
| 4 | May 16, 2024 | - | View Document |
| 4 | May 16, 2024 | - | View Document |
| 4 | May 16, 2024 | - | View Document |
| 4 | May 16, 2024 | - | View Document |
| 3 | May 15, 2024 | - | View Document |
| 8-K | May 7, 2024 | KNIFE RIVER CORPORATION FORM 8-K | View Document |
| 10-Q | May 7, 2024 | KNIFE RIVER FORM 10-Q 03-31-2024 | View Document |
| 4 | April 1, 2024 | - | View Document |
| ARS | March 29, 2024 | KRC 2023 ANNUAL REPORT | View Document |
| DEFA14A | March 29, 2024 | DEFA14A | View Document |
| DEF 14A | March 29, 2024 | DEF 14A | View Document |
| 4 | March 4, 2024 | - | View Document |
| 10-K | Feb. 27, 2024 | KNIFE RIVER FORM 10-K 2023 | View Document |
| 4 | Feb. 26, 2024 | - | View Document |
| 4 | Feb. 26, 2024 | - | View Document |
| 4 | Feb. 26, 2024 | - | View Document |
| 4 | Feb. 26, 2024 | - | View Document |
| 4 | Feb. 26, 2024 | - | View Document |
| 4 | Feb. 26, 2024 | - | View Document |
| 4 | Feb. 26, 2024 | - | View Document |
| 8-K | Feb. 15, 2024 | KNIFE RIVER CORPORATION FORM 8-K | View Document |
| SC 13G/A | Feb. 13, 2024 | SCHEDULE 13G/A | View Document |
| SC 13G/A | Jan. 23, 2024 | - | View Document |
| SC 13G | Dec. 8, 2023 | SCHEDULE 13G | View Document |
| 4 | Nov. 16, 2023 | - | View Document |
| 4 | Nov. 16, 2023 | - | View Document |
| 4 | Nov. 16, 2023 | - | View Document |
| 4 | Nov. 16, 2023 | - | View Document |
| 4 | Nov. 16, 2023 | - | View Document |
| 424B4 | Nov. 8, 2023 | 424B4 | View Document |
| 424B4 | Nov. 6, 2023 | 424B4 | View Document |
| 10-Q | Nov. 6, 2023 | KNIFE RIVER FORM 10-Q 09-30-2023 | View Document |
| 8-K | Nov. 6, 2023 | KNIFE RIVER CORPORATION FORM 8-K | View Document |
| 424B3 | Nov. 6, 2023 | 424B3 | View Document |
| 424B3 | Nov. 6, 2023 | 424B3 | View Document |
| EFFECT | Sept. 28, 2023 | - | View Document |
| S-1 | Sept. 26, 2023 | S-1 | View Document |
| DRS | Sept. 1, 2023 | - | View Document |
| 8-K | Aug. 8, 2023 | KNIFE RIVER CORPORATION FORM 8-K | View Document |
| 10-Q | Aug. 8, 2023 | KNIFE RIVER FORM 10-Q 06-30-2023 | View Document |
| 4/A | July 28, 2023 | - | View Document |
| 4/A | July 28, 2023 | - | View Document |
| 4/A | July 28, 2023 | - | View Document |
| 4/A | July 28, 2023 | - | View Document |
| 4/A | July 28, 2023 | - | View Document |
| 4 | July 13, 2023 | - | View Document |
| 4 | July 13, 2023 | - | View Document |
| 4 | July 13, 2023 | - | View Document |
| 4 | July 13, 2023 | - | View Document |
| 4 | July 13, 2023 | - | View Document |
| 4 | July 13, 2023 | - | View Document |
| SC 13G | July 7, 2023 | - | View Document |
| S-8 | June 2, 2023 | S-8 | View Document |
| S-8 | June 2, 2023 | S-8 | View Document |
| 3 | June 1, 2023 | - | View Document |
| 3 | June 1, 2023 | - | View Document |
| 3 | June 1, 2023 | - | View Document |
| 3 | June 1, 2023 | - | View Document |
| 3 | June 1, 2023 | - | View Document |
| 8-K | June 1, 2023 | 8-K | View Document |
| 3 | June 1, 2023 | - | View Document |
| 3 | June 1, 2023 | - | View Document |
| 3 | June 1, 2023 | - | View Document |
| 3 | May 22, 2023 | - | View Document |
| 8-K | May 18, 2023 | 8-K | View Document |
| 10-Q | May 16, 2023 | KNIFE RIVER FORM 10-Q 03-31-2023 | View Document |
| 8-K | May 12, 2023 | FORM 8-K | View Document |
| 3 | May 10, 2023 | - | View Document |
| SEC STAFF ACTION | May 10, 2023 | - | View Document |
| 3 | May 10, 2023 | - | View Document |
| 3 | May 10, 2023 | - | View Document |
| 3 | May 10, 2023 | - | View Document |
| 3 | May 10, 2023 | - | View Document |
| 3 | May 10, 2023 | - | View Document |
| CERT | May 9, 2023 | NYSE CERTIFICATION | View Document |
| CORRESP | May 8, 2023 | - | View Document |
| 10-12B/A | May 8, 2023 | 10-12B/A | View Document |
| CORRESP | May 3, 2023 | - | View Document |
| UPLOAD | May 3, 2023 | - | View Document |
| CORRESP | April 28, 2023 | - | View Document |
| 10-12B/A | April 28, 2023 | 10-12B/A | View Document |
| UPLOAD | April 17, 2023 | - | View Document |
| CORRESP | April 7, 2023 | - | View Document |
| 10-12B/A | April 7, 2023 | 10-12B/A | View Document |
| UPLOAD | March 21, 2023 | - | View Document |
| CORRESP | March 10, 2023 | - | View Document |
| 10-12B | March 10, 2023 | FORM 10-12B | View Document |
| UPLOAD | Feb. 15, 2023 | - | View Document |
| DRSLTR | Feb. 3, 2023 | - | View Document |
| DRS/A | Feb. 3, 2023 | - | View Document |
| UPLOAD | Jan. 13, 2023 | - | View Document |
| DRS | Dec. 14, 2022 | - | View Document |