Knife River Corp

Symbol
KNF on NYSE
Entity
Company
Industry
Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (Office Of Energy & Transportation)
Business address
1150 W. Century Ave,, 58503 Bismarck, ND
Phone
701-530-1400
State of incorporation
DE
Fiscal year end
December 31
Category
Large accelerated filer
Former names
Knife River Holding Co (to 6/1/2023)
All SEC filings
View on sec.gov
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Knife River Corp has filed 143 SEC EDGAR filings since 12/14/2022

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
SCHEDULE 13G Open Document Open Filing Aug 14, 2025 005-94109
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 06-30-2025 Aug 5, 2025 Jun 30, 2025 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K Aug 5, 2025 Aug 5, 2025 001-41642
11-K Open Document Open Filing KNIFE RIVER CORPORATION FORM 11-K Jun 12, 2025 Dec 31, 2024 001-41642
8-K Open Document | Data Open Filing 8-K May 28, 2025 May 22, 2025 001-41642
4 Open Document Open Filing May 27, 2025 May 22, 2025
4 Open Document Open Filing May 27, 2025 May 22, 2025
4 Open Document Open Filing May 27, 2025 May 22, 2025
4 Open Document Open Filing May 27, 2025 May 22, 2025
4 Open Document Open Filing May 27, 2025 May 22, 2025
4 Open Document Open Filing May 27, 2025 May 22, 2025
UPLOAD Open Document Open Filing May 27, 2025 001-41642
CORRESP Open Document Open Filing May 14, 2025
UPLOAD Open Document Open Filing May 8, 2025 001-41642
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 03-31-2025 May 6, 2025 Mar 31, 2025 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K May 6, 2025 May 6, 2025 001-41642
3 Open Document Open Filing Apr 25, 2025 Apr 19, 2025
ARS Open Document Open Filing KRC 2024 ANNUAL REPORT Apr 7, 2025 Dec 31, 2024 001-41642
DEFA14A Open Document Open Filing DEFA14A Apr 7, 2025 001-41642
DEF 14A Open Document | Data Open Filing DEF 14A Apr 7, 2025 May 22, 2025 001-41642
PRE 14A Open Document | Data Open Filing PRE 14A Mar 28, 2025 May 22, 2025 001-41642
8-K Open Document | Data Open Filing 8-K Mar 28, 2025 Mar 28, 2025 001-41642
8-K Open Document | Data Open Filing 8-K Mar 10, 2025 Mar 7, 2025 001-41642
4 Open Document Open Filing Mar 3, 2025 Feb 28, 2025
4 Open Document Open Filing Mar 3, 2025 Feb 27, 2025
4 Open Document Open Filing Mar 3, 2025 Feb 27, 2025
4 Open Document Open Filing Mar 3, 2025 Feb 27, 2025
4 Open Document Open Filing Mar 3, 2025 Feb 27, 2025
4 Open Document Open Filing Mar 3, 2025 Feb 27, 2025
4 Open Document Open Filing Mar 3, 2025 Feb 27, 2025
10-K Open Document | Data Open Filing KNIFE RIVER FORM 10-K 2024 Feb 21, 2025 Dec 31, 2024 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION 8-K Feb 13, 2025 Feb 13, 2025 001-41642
8-K Open Document | Data Open Filing 8-K Jan 17, 2025 Jan 17, 2025 001-41642
4 Open Document Open Filing Jan 2, 2025 Dec 31, 2024
8-K Open Document | Data Open Filing 8-K Dec 26, 2024 Dec 20, 2024 001-41642
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 09-30-2024 Nov 4, 2024 Sep 30, 2024 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K Nov 4, 2024 Nov 4, 2024 001-41642
4 Open Document Open Filing Oct 1, 2024 Sep 30, 2024
8-K Open Document | Data Open Filing 8-K Aug 21, 2024 Aug 20, 2024 001-41642
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 06-30-2024 Aug 6, 2024 Jun 30, 2024 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K Aug 6, 2024 Aug 6, 2024 001-41642
4 Open Document Open Filing Jun 28, 2024 Jun 27, 2024
4 Open Document Open Filing Jun 28, 2024 Jun 28, 2024
3 Open Document Open Filing Jun 27, 2024 Jun 27, 2024
8-K Open Document | Data Open Filing 8-K Jun 27, 2024 Jun 27, 2024 001-41642
11-K Open Document Open Filing KNIFE RIVER CORPORATION FORM 11-K Jun 11, 2024 Dec 31, 2023 001-41642
8-K Open Document | Data Open Filing 8-K May 17, 2024 May 14, 2024 001-41642
4 Open Document Open Filing May 16, 2024 May 15, 2024
4 Open Document Open Filing May 16, 2024 May 15, 2024
4 Open Document Open Filing May 16, 2024 May 15, 2024
4 Open Document Open Filing May 16, 2024 May 15, 2024
4 Open Document Open Filing May 16, 2024 May 15, 2024
3 Open Document Open Filing May 15, 2024 May 14, 2024
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 03-31-2024 May 7, 2024 Mar 31, 2024 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K May 7, 2024 May 7, 2024 001-41642
4 Open Document Open Filing Apr 1, 2024 Mar 29, 2024
ARS Open Document Open Filing KRC 2023 ANNUAL REPORT Mar 29, 2024 Dec 31, 2023 001-41642
DEFA14A Open Document Open Filing DEFA14A Mar 29, 2024 001-41642
DEF 14A Open Document | Data Open Filing DEF 14A Mar 29, 2024 May 14, 2024 001-41642
4 Open Document Open Filing Mar 4, 2024 Feb 29, 2024
10-K Open Document | Data Open Filing KNIFE RIVER FORM 10-K 2023 Feb 27, 2024 Dec 31, 2023 001-41642
4 Open Document Open Filing Feb 26, 2024 Feb 22, 2024
4 Open Document Open Filing Feb 26, 2024 Feb 22, 2024
4 Open Document Open Filing Feb 26, 2024 Feb 22, 2024
4 Open Document Open Filing Feb 26, 2024 Feb 22, 2024
4 Open Document Open Filing Feb 26, 2024 Feb 22, 2024
4 Open Document Open Filing Feb 26, 2024 Feb 22, 2024
4 Open Document Open Filing Feb 26, 2024 Feb 22, 2024
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K Feb 15, 2024 Feb 15, 2024 001-41642
SC 13G/A Open Document Open Filing SCHEDULE 13G/A Feb 13, 2024 005-94109
SC 13G/A Open Document Open Filing Jan 23, 2024 005-94109
SC 13G Open Document Open Filing SCHEDULE 13G Dec 8, 2023 005-94109
4 Open Document Open Filing Nov 16, 2023 Nov 15, 2023
4 Open Document Open Filing Nov 16, 2023 Nov 15, 2023
4 Open Document Open Filing Nov 16, 2023 Nov 15, 2023
4 Open Document Open Filing Nov 16, 2023 Nov 15, 2023
4 Open Document Open Filing Nov 16, 2023 Nov 15, 2023
4 Open Document Open Filing Nov 13, 2023 Nov 10, 2023
424B4 Open Document Open Filing 424B4 Nov 8, 2023 333-274692
424B3 Open Document Open Filing 424B3 Nov 6, 2023 333-274692
424B4 Open Document Open Filing 424B4 Nov 6, 2023 333-274692
424B3 Open Document Open Filing 424B3 Nov 6, 2023 333-274692
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 09-30-2023 Nov 6, 2023 Sep 30, 2023 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K Nov 6, 2023 Nov 6, 2023 001-41642
EFFECT Open Document Open Filing Sep 28, 2023 333-274692
S-1 Open Document | Data Open Filing S-1 Sep 26, 2023 333-274692
DRS Open Document Open Filing Sep 1, 2023 377-06850
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 06-30-2023 Aug 8, 2023 Jun 30, 2023 001-41642
8-K Open Document | Data Open Filing KNIFE RIVER CORPORATION FORM 8-K Aug 8, 2023 Aug 8, 2023 001-41642
4/A Open Document Open Filing Jul 28, 2023 Jul 12, 2023
4/A Open Document Open Filing Jul 28, 2023 Jul 12, 2023
4/A Open Document Open Filing Jul 28, 2023 Jul 12, 2023
4/A Open Document Open Filing Jul 28, 2023 Jul 12, 2023
4/A Open Document Open Filing Jul 28, 2023 Jul 12, 2023
4 Open Document Open Filing Jul 13, 2023 Jul 12, 2023
4 Open Document Open Filing Jul 13, 2023 Jul 12, 2023
4 Open Document Open Filing Jul 13, 2023 Jul 12, 2023
4 Open Document Open Filing Jul 13, 2023 Jul 12, 2023
4 Open Document Open Filing Jul 13, 2023 Jul 12, 2023
4 Open Document Open Filing Jul 13, 2023 Jul 12, 2023
SC 13G Open Document Open Filing Jul 7, 2023 005-94109
4 Open Document Open Filing Jun 2, 2023 May 31, 2023
S-8 Open Document Open Filing S-8 Jun 2, 2023 333-272357
S-8 Open Document Open Filing S-8 Jun 2, 2023 333-272356
3 Open Document Open Filing Jun 1, 2023 May 31, 2023
3 Open Document Open Filing Jun 1, 2023 May 31, 2023
3 Open Document Open Filing Jun 1, 2023 May 31, 2023
3 Open Document Open Filing Jun 1, 2023 May 31, 2023
3 Open Document Open Filing Jun 1, 2023 May 31, 2023
3 Open Document Open Filing Jun 1, 2023 May 31, 2023
3 Open Document Open Filing Jun 1, 2023 May 31, 2023
3 Open Document Open Filing Jun 1, 2023 May 31, 2023
8-K Open Document | Data Open Filing 8-K Jun 1, 2023 May 30, 2023 001-41642
3 Open Document Open Filing May 22, 2023 May 21, 2023
8-K Open Document | Data Open Filing 8-K May 18, 2023 May 18, 2023 001-41642
10-Q Open Document | Data Open Filing KNIFE RIVER FORM 10-Q 03-31-2023 May 16, 2023 Mar 31, 2023 001-41642
8-K Open Document | Data Open Filing FORM 8-K May 12, 2023 May 10, 2023 001-41642
3 Open Document Open Filing May 10, 2023 May 10, 2023
3 Open Document Open Filing May 10, 2023 May 10, 2023
3 Open Document Open Filing May 10, 2023 May 10, 2023
3 Open Document Open Filing May 10, 2023 May 10, 2023
3 Open Document Open Filing May 10, 2023 May 10, 2023
3 Open Document Open Filing May 10, 2023 May 10, 2023
3 Open Document Open Filing May 10, 2023 May 10, 2023
SEC STAFF ACTION Open Document Open Filing May 10, 2023
CERT Open Document Open Filing NYSE CERTIFICATION May 9, 2023 001-41642
CORRESP Open Document Open Filing May 8, 2023
10-12B/A Open Document Open Filing 10-12B/A May 8, 2023 001-41642
CORRESP Open Document Open Filing May 3, 2023
UPLOAD Open Document Open Filing May 3, 2023
CORRESP Open Document Open Filing Apr 28, 2023
10-12B/A Open Document Open Filing 10-12B/A Apr 28, 2023 001-41642
UPLOAD Open Document Open Filing Apr 17, 2023
CORRESP Open Document Open Filing Apr 7, 2023
10-12B/A Open Document Open Filing 10-12B/A Apr 7, 2023 001-41642
UPLOAD Open Document Open Filing Mar 21, 2023
CORRESP Open Document Open Filing Mar 10, 2023
10-12B Open Document Open Filing FORM 10-12B Mar 10, 2023 001-41642
UPLOAD Open Document Open Filing Feb 15, 2023
DRSLTR Open Document Open Filing Feb 3, 2023
DRS/A Open Document Open Filing Feb 3, 2023 377-06503
UPLOAD Open Document Open Filing Jan 13, 2023
DRS Open Document Open Filing Dec 14, 2022 377-06503