Knife River Corp

Symbol
KNF on NYSE
Industry
Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (Office Of Energy & Transportation)
Business address
1150 W. Century Ave,, Bismarck, ND, 58503
State of incorporation
DE
Fiscal year end
31 December
Former names
Knife River Holding Co (to 01 Jun 2023)
⭐ Add to watchlist ⭐
Get insider transactions for this issuer
Knife River Corp has filed 146 SEC EDGAR filings since 14 Dec 2022

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
SCHEDULE 13G/A Open Document Open Filing 14 Nov 2025 005-94109
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 09-30-2025 05 Nov 2025 30 Sep 2025 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K 04 Nov 2025 04 Nov 2025 001-41642
SCHEDULE 13G Open Document Open Filing 14 Aug 2025 005-94109
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 06-30-2025 05 Aug 2025 30 Jun 2025 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K 05 Aug 2025 05 Aug 2025 001-41642
11-K Open Document Open Filing KNIFE RIVER CORPORATION FORM 11-K 12 Jun 2025 31 Dec 2024 001-41642
8-K Open Document | Data Open Filing 8-K 28 May 2025 22 May 2025 001-41642
4 Open Document Open Filing 27 May 2025 22 May 2025
4 Open Document Open Filing 27 May 2025 22 May 2025
4 Open Document Open Filing 27 May 2025 22 May 2025
4 Open Document Open Filing 27 May 2025 22 May 2025
4 Open Document Open Filing 27 May 2025 22 May 2025
4 Open Document Open Filing 27 May 2025 22 May 2025
UPLOAD Open Document Open Filing 27 May 2025 001-41642
CORRESP Open Document Open Filing 14 May 2025
UPLOAD Open Document Open Filing 08 May 2025 001-41642
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 03-31-2025 06 May 2025 31 Mar 2025 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K 06 May 2025 06 May 2025 001-41642
3 Open Document Open Filing 25 Apr 2025 19 Apr 2025
ARS Open Document Open Filing KRC 2024 ANNUAL REPORT 07 Apr 2025 31 Dec 2024 001-41642
DEFA14A Open Document Open Filing DEFA14A 07 Apr 2025 001-41642
DEF 14A Open Document | Data Open Filing DEF 14A 07 Apr 2025 22 May 2025 001-41642
PRE 14A Open Document | Data Open Filing PRE 14A 28 Mar 2025 22 May 2025 001-41642
8-K Open Document | Data Open Filing 8-K 28 Mar 2025 28 Mar 2025 001-41642
8-K Open Document | Data Open Filing 8-K 10 Mar 2025 07 Mar 2025 001-41642
4 Open Document Open Filing 03 Mar 2025 28 Feb 2025
4 Open Document Open Filing 03 Mar 2025 27 Feb 2025
4 Open Document Open Filing 03 Mar 2025 27 Feb 2025
4 Open Document Open Filing 03 Mar 2025 27 Feb 2025
4 Open Document Open Filing 03 Mar 2025 27 Feb 2025
4 Open Document Open Filing 03 Mar 2025 27 Feb 2025
4 Open Document Open Filing 03 Mar 2025 27 Feb 2025
10-K Open Document | Data Open Filing KNIFE RIVER FORM 10-K 2024 21 Feb 2025 31 Dec 2024 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION 8-K 13 Feb 2025 13 Feb 2025 001-41642
8-K Open Document | Data Open Filing 8-K 17 Jan 2025 17 Jan 2025 001-41642
4 Open Document Open Filing 02 Jan 2025 31 Dec 2024
8-K Open Document | Data Open Filing 8-K 26 Dec 2024 20 Dec 2024 001-41642
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 09-30-2024 04 Nov 2024 30 Sep 2024 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K 04 Nov 2024 04 Nov 2024 001-41642
4 Open Document Open Filing 01 Oct 2024 30 Sep 2024
8-K Open Document | Data Open Filing 8-K 21 Aug 2024 20 Aug 2024 001-41642
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 06-30-2024 06 Aug 2024 30 Jun 2024 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K 06 Aug 2024 06 Aug 2024 001-41642
4 Open Document Open Filing 28 Jun 2024 27 Jun 2024
4 Open Document Open Filing 28 Jun 2024 28 Jun 2024
3 Open Document Open Filing 27 Jun 2024 27 Jun 2024
8-K Open Document | Data Open Filing 8-K 27 Jun 2024 27 Jun 2024 001-41642
11-K Open Document Open Filing KNIFE RIVER CORPORATION FORM 11-K 11 Jun 2024 31 Dec 2023 001-41642
8-K Open Document | Data Open Filing 8-K 17 May 2024 14 May 2024 001-41642
4 Open Document Open Filing 16 May 2024 15 May 2024
4 Open Document Open Filing 16 May 2024 15 May 2024
4 Open Document Open Filing 16 May 2024 15 May 2024
4 Open Document Open Filing 16 May 2024 15 May 2024
4 Open Document Open Filing 16 May 2024 15 May 2024
3 Open Document Open Filing 15 May 2024 14 May 2024
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 03-31-2024 07 May 2024 31 Mar 2024 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K 07 May 2024 07 May 2024 001-41642
4 Open Document Open Filing 01 Apr 2024 29 Mar 2024
ARS Open Document Open Filing KRC 2023 ANNUAL REPORT 29 Mar 2024 31 Dec 2023 001-41642
DEFA14A Open Document Open Filing DEFA14A 29 Mar 2024 001-41642
DEF 14A Open Document | Data Open Filing DEF 14A 29 Mar 2024 14 May 2024 001-41642
4 Open Document Open Filing 04 Mar 2024 29 Feb 2024
10-K Open Document | Data Open Filing KNIFE RIVER FORM 10-K 2023 27 Feb 2024 31 Dec 2023 001-41642
4 Open Document Open Filing 26 Feb 2024 22 Feb 2024
4 Open Document Open Filing 26 Feb 2024 22 Feb 2024
4 Open Document Open Filing 26 Feb 2024 22 Feb 2024
4 Open Document Open Filing 26 Feb 2024 22 Feb 2024
4 Open Document Open Filing 26 Feb 2024 22 Feb 2024
4 Open Document Open Filing 26 Feb 2024 22 Feb 2024
4 Open Document Open Filing 26 Feb 2024 22 Feb 2024
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K 15 Feb 2024 15 Feb 2024 001-41642
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 13 Feb 2024 005-94109
SC 13G/A Open Document Open Filing 23 Jan 2024 005-94109
SC 13G Open Document Open Filing SCHEDULE 13G 08 Dec 2023 005-94109
4 Open Document Open Filing 16 Nov 2023 15 Nov 2023
4 Open Document Open Filing 16 Nov 2023 15 Nov 2023
4 Open Document Open Filing 16 Nov 2023 15 Nov 2023
4 Open Document Open Filing 16 Nov 2023 15 Nov 2023
4 Open Document Open Filing 16 Nov 2023 15 Nov 2023
4 Open Document Open Filing 13 Nov 2023 10 Nov 2023
424B4 Open Document Open Filing 424B4 08 Nov 2023 333-274692
424B3 Open Document Open Filing 424B3 06 Nov 2023 333-274692
424B4 Open Document Open Filing 424B4 06 Nov 2023 333-274692
424B3 Open Document Open Filing 424B3 06 Nov 2023 333-274692
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 09-30-2023 06 Nov 2023 30 Sep 2023 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K 06 Nov 2023 06 Nov 2023 001-41642
EFFECT Open Document Open Filing 28 Sep 2023 333-274692
S-1 Open Document | Data Open Filing S-1 26 Sep 2023 333-274692
DRS Open Document Open Filing 01 Sep 2023 377-06850
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 06-30-2023 08 Aug 2023 30 Jun 2023 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K 08 Aug 2023 08 Aug 2023 001-41642
4/A Open Document Open Filing 28 Jul 2023 12 Jul 2023
4/A Open Document Open Filing 28 Jul 2023 12 Jul 2023
4/A Open Document Open Filing 28 Jul 2023 12 Jul 2023
4/A Open Document Open Filing 28 Jul 2023 12 Jul 2023
4/A Open Document Open Filing 28 Jul 2023 12 Jul 2023
4 Open Document Open Filing 13 Jul 2023 12 Jul 2023
4 Open Document Open Filing 13 Jul 2023 12 Jul 2023
4 Open Document Open Filing 13 Jul 2023 12 Jul 2023
4 Open Document Open Filing 13 Jul 2023 12 Jul 2023
4 Open Document Open Filing 13 Jul 2023 12 Jul 2023
4 Open Document Open Filing 13 Jul 2023 12 Jul 2023
SC 13G Open Document Open Filing 07 Jul 2023 005-94109
4 Open Document Open Filing 02 Jun 2023 31 May 2023
S-8 Open Document Open Filing S-8 02 Jun 2023 333-272357
S-8 Open Document Open Filing S-8 02 Jun 2023 333-272356
3 Open Document Open Filing 01 Jun 2023 31 May 2023
3 Open Document Open Filing 01 Jun 2023 31 May 2023
3 Open Document Open Filing 01 Jun 2023 31 May 2023
3 Open Document Open Filing 01 Jun 2023 31 May 2023
3 Open Document Open Filing 01 Jun 2023 31 May 2023
3 Open Document Open Filing 01 Jun 2023 31 May 2023
3 Open Document Open Filing 01 Jun 2023 31 May 2023
3 Open Document Open Filing 01 Jun 2023 31 May 2023
8-K Open Document | Data Open Filing 8-K 01 Jun 2023 30 May 2023 001-41642
3 Open Document Open Filing 22 May 2023 21 May 2023
8-K Open Document | Data Open Filing 8-K 18 May 2023 18 May 2023 001-41642
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 03-31-2023 16 May 2023 31 Mar 2023 001-41642
8-K Open Document | Data Open Filing FORM 8-K 12 May 2023 10 May 2023 001-41642
3 Open Document Open Filing 10 May 2023 10 May 2023
3 Open Document Open Filing 10 May 2023 10 May 2023
3 Open Document Open Filing 10 May 2023 10 May 2023
3 Open Document Open Filing 10 May 2023 10 May 2023
3 Open Document Open Filing 10 May 2023 10 May 2023
3 Open Document Open Filing 10 May 2023 10 May 2023
3 Open Document Open Filing 10 May 2023 10 May 2023
SEC STAFF ACTION Open Document Open Filing 10 May 2023
CERT Open Document Open Filing NYSE CERTIFICATION 09 May 2023 001-41642
CORRESP Open Document Open Filing 08 May 2023
10-12B/A Open Document Open Filing 10-12B/A 08 May 2023 001-41642
CORRESP Open Document Open Filing 03 May 2023
UPLOAD Open Document Open Filing 03 May 2023
CORRESP Open Document Open Filing 28 Apr 2023
10-12B/A Open Document Open Filing 10-12B/A 28 Apr 2023 001-41642
UPLOAD Open Document Open Filing 17 Apr 2023
CORRESP Open Document Open Filing 07 Apr 2023
10-12B/A Open Document Open Filing 10-12B/A 07 Apr 2023 001-41642
UPLOAD Open Document Open Filing 21 Mar 2023
CORRESP Open Document Open Filing 10 Mar 2023
10-12B Open Document Open Filing FORM 10-12B 10 Mar 2023 001-41642
UPLOAD Open Document Open Filing 15 Feb 2023
DRSLTR Open Document Open Filing 03 Feb 2023
DRS/A Open Document Open Filing 03 Feb 2023 377-06503
UPLOAD Open Document Open Filing 13 Jan 2023
DRS Open Document Open Filing 14 Dec 2022 377-06503