Knife River Corp reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Bismarck, ND
SEC filing record 1 source field available
Fiscal year end
31 December
Knife River Corp has filed 187 SEC EDGAR filings since 14 Dec 2022

SEC filing history

Showing 1-25 of 187 matching filings.

Per page
25
Current page
1
8-K File 001-41642

KNIFE RIVER CORPORATION FORM 8-K

Filing date
23 Sep 2026
Reporting date
23 Sep 2026
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SCHEDULE 13G/A File 005-94109

SCHEDULE 13G/A filing

Filing date
14 Aug 2026
Reporting date
Not listed
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SCHEDULE 13G File 005-94109

SCHEDULE 13G filing

Filing date
12 Aug 2026
Reporting date
Not listed
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10-Q File 001-41642

KNIFE RIVER FORM 10-Q 06-30-2026

Filing date
04 Aug 2026
Reporting date
30 Jun 2026
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8-K File 001-41642

KNIFE RIVER CORPORATION FORM 8-K

Filing date
04 Aug 2026
Reporting date
04 Aug 2026
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SCHEDULE 13G File 005-94109

SCHEDULE 13G filing

Filing date
31 Jul 2026
Reporting date
Not listed
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4

4 filing

Filing date
01 Jul 2026
Reporting date
30 Jun 2026
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11-K File 001-41642

KNIFE RIVER CORPORATION FORM 11-K

Filing date
17 Jun 2026
Reporting date
31 Dec 2025
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4

4 filing

Filing date
21 May 2026
Reporting date
20 May 2026
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4

4 filing

Filing date
21 May 2026
Reporting date
20 May 2026
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4

4 filing

Filing date
21 May 2026
Reporting date
20 May 2026
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4

4 filing

Filing date
21 May 2026
Reporting date
20 May 2026
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4

4 filing

Filing date
21 May 2026
Reporting date
20 May 2026
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4

4 filing

Filing date
21 May 2026
Reporting date
20 May 2026
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3

3 filing

Filing date
21 May 2026
Reporting date
21 May 2026
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SCHEDULE 13G/A File 005-94109

SCHEDULE 13G/A filing

Filing date
15 May 2026
Reporting date
Not listed
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10-Q File 001-41642

KNIFE RIVER FORM 10-Q 03-31-2026

Filing date
05 May 2026
Reporting date
31 Mar 2026
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8-K File 001-41642

KNIFE RIVER CORPORATION 8-K

Filing date
05 May 2026
Reporting date
05 May 2026
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SCHEDULE 13G File 005-94109

SCHEDULE 13G filing

Filing date
30 Apr 2026
Reporting date
Not listed
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ARS File 001-41642

KRC 2025 ANNUAL REPORT

Filing date
06 Apr 2026
Reporting date
31 Dec 2025
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DEFA14A File 001-41642

DEFA14A

Filing date
06 Apr 2026
Reporting date
Not listed
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DEF 14A File 001-41642

DEF 14A

Filing date
06 Apr 2026
Reporting date
20 May 2026
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4

4 filing

Filing date
01 Apr 2026
Reporting date
31 Mar 2026
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