# Knife River Corp: filings

KNF · NYSE · CIK 1955520 · [Materials](/sectors/materials.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/knf.md) · [Financials](/companies/knf/financials.md) · [Filings](/companies/knf/filings.md) · [Insiders](/companies/knf/insiders.md)

## Reports and events: 45 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 64, 8-K 27, 3 19, 10-Q 11, UPLOAD 7, CORRESP 6, 4/A 5, SCHEDULE 13G/A 5, SCHEDULE 13G 4, 10-12B/A 3, 10-K 3, 11-K 3, ARS 3, DEF 14A 3, DEFA14A 3, 424B3 2, 424B4 2, DRS 2, S-8 2, SC 13G 2, SC 13G/A 2, 10-12B 1, CERT 1, DRS/A 1, DRSLTR 1, EFFECT 1, PRE 14A 1, S-1 1, SEC STAFF ACTION 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-09-23 | 12:03 ET | [8-K](/filings/0001628280-26-063145.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-26-063145 |
| 2026-08-04 | 21:28 ET | [10-Q](/filings/0001628280-26-052748.md) | Quarterly report, period 2026-06-30 | 0001628280-26-052748 |
| 2026-08-04 | 12:40 ET | [8-K](/filings/0001628280-26-052184.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-26-052184 |
| 2026-05-21 | 20:37 ET | [8-K](/filings/0001628280-26-037338.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001628280-26-037338 |
| 2026-05-18 | 20:45 ET | [8-K](/filings/0001628280-26-036006.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001628280-26-036006 |
| 2026-05-05 | 20:48 ET | [10-Q](/filings/0001628280-26-030688.md) | Quarterly report, period 2026-03-31 | 0001628280-26-030688 |
| 2026-05-05 | 11:52 ET | [8-K](/filings/0001628280-26-030137.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-26-030137 |
| 2026-04-06 | 11:59 ET | [DEF 14A](/filings/0001628280-26-023783.md) | Proxy statement, period 2026-05-20 | 0001628280-26-023783 |
| 2026-02-20 | 13:00 ET | [10-K](/filings/0001955520-26-000003.md) | Annual report, period 2025-12-31 | 0001955520-26-000003 |
| 2026-02-17 | 12:05 ET | [8-K](/filings/0001628280-26-008306.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-26-008306 |
| 2025-11-05 | 22:34 ET | [10-Q](/filings/0001955520-25-000069.md) | Quarterly report, period 2025-09-30 | 0001955520-25-000069 |
| 2025-11-04 | 12:59 ET | [8-K](/filings/0001955520-25-000065.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001955520-25-000065 |
| 2025-08-05 | 20:37 ET | [10-Q](/filings/0001955520-25-000060.md) | Quarterly report, period 2025-06-30 | 0001955520-25-000060 |
| 2025-08-05 | 11:50 ET | [8-K](/filings/0001955520-25-000057.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001955520-25-000057 |
| 2025-05-28 | 21:00 ET | [8-K](/filings/0001955520-25-000043.md) | 3.03 Change to security holders’ rights; 5.03 Amendment to articles or bylaws; 5.07 Shareholder vote results | 0001955520-25-000043 |
| 2025-05-06 | 20:36 ET | [10-Q](/filings/0001955520-25-000034.md) | Quarterly report, period 2025-03-31 | 0001955520-25-000034 |
| 2025-05-06 | 11:47 ET | [8-K](/filings/0001955520-25-000031.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001955520-25-000031 |
| 2025-04-07 | 20:38 ET | [DEF 14A](/filings/0001955520-25-000026.md) | Proxy statement, period 2025-05-22 | 0001955520-25-000026 |
| 2025-03-28 | 20:27 ET | [8-K](/filings/0001955520-25-000016.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001955520-25-000016 |
| 2025-03-10 | 21:14 ET | [8-K](/filings/0001955520-25-000013.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0001955520-25-000013 |
| 2025-02-21 | 14:04 ET | [10-K](/filings/0001955520-25-000010.md) | Annual report, period 2024-12-31 | 0001955520-25-000010 |
| 2025-02-13 | 12:58 ET | [8-K](/filings/0001955520-25-000006.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001955520-25-000006 |
| 2025-01-17 | 22:06 ET | [8-K](/filings/0001955520-25-000003.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001955520-25-000003 |
| 2024-12-26 | 23:38 ET | [8-K](/filings/0001955520-24-000054.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001955520-24-000054 |
| 2024-11-04 | 21:45 ET | [10-Q](/filings/0001955520-24-000051.md) | Quarterly report, period 2024-09-30 | 0001955520-24-000051 |
| 2024-11-04 | 12:52 ET | [8-K](/filings/0001955520-24-000049.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001955520-24-000049 |
| 2024-08-21 | 20:46 ET | [8-K](/filings/0001955520-24-000045.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001955520-24-000045 |
| 2024-08-06 | 20:46 ET | [10-Q](/filings/0001955520-24-000040.md) | Quarterly report, period 2024-06-30 | 0001955520-24-000040 |
| 2024-08-06 | 11:54 ET | [8-K](/filings/0001955520-24-000037.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001955520-24-000037 |
| 2024-06-27 | 20:53 ET | [8-K](/filings/0001955520-24-000034.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001955520-24-000034 |
| 2024-05-17 | 21:31 ET | [8-K](/filings/0001955520-24-000028.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001955520-24-000028 |
| 2024-05-07 | 20:48 ET | [10-Q](/filings/0001955520-24-000026.md) | Quarterly report, period 2024-03-31 | 0001955520-24-000026 |
| 2024-05-07 | 11:43 ET | [8-K](/filings/0001955520-24-000022.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001955520-24-000022 |
| 2024-03-29 | 15:06 ET | [DEF 14A](/filings/0001955520-24-000016.md) | Proxy statement, period 2024-05-14 | 0001955520-24-000016 |
| 2024-02-27 | 21:51 ET | [10-K](/filings/0001955520-24-000007.md) | Annual report, period 2023-12-31 | 0001955520-24-000007 |
| 2024-02-15 | 12:08 ET | [8-K](/filings/0001955520-24-000003.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001955520-24-000003 |
| 2023-11-06 | 12:08 ET | [10-Q](/filings/0001955520-23-000020.md) | Quarterly report, period 2023-09-30 | 0001955520-23-000020 |
| 2023-11-06 | 12:05 ET | [8-K](/filings/0001955520-23-000019.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001955520-23-000019 |
| 2023-09-26 | 10:56 ET | [S-1](/filings/0001628280-23-032983.md) | Registration statement | 0001628280-23-032983 |
| 2023-08-08 | 21:22 ET | [10-Q](/filings/0001955520-23-000014.md) | Quarterly report, period 2023-06-30 | 0001955520-23-000014 |
| 2023-08-08 | 11:35 ET | [8-K](/filings/0001955520-23-000010.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001955520-23-000010 |
| 2023-06-01 | 12:51 ET | [8-K](/filings/0001140361-23-027662.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 3.03 Change to security holders’ rights; 5.01 Change in control; 5.02 Departure or appointment of officers or directors; 5.03 Amendment to articles or bylaws; 5.05 Item not in the standard list; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-23-027662 |
| 2023-05-18 | 20:56 ET | [8-K](/filings/0001140361-23-025497.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001140361-23-025497 |
| 2023-05-16 | 20:41 ET | [10-Q](/filings/0001955520-23-000006.md) | Quarterly report, period 2023-03-31 | 0001955520-23-000006 |
| 2023-05-12 | 13:00 ET | [8-K](/filings/0001140361-23-024280.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001140361-23-024280 |

Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:16 ET. No prices; not investment advice.