MDU RESOURCES GROUP INC reports

Company location: Bismarck, ND
Fiscal year end: 31 December

MDU RESOURCES GROUP INC has filed 1,790 SEC EDGAR filings since 11 Feb 1994

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SEC filing history

Showing 26-50 of 1,000 matching filings.

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25

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2

8-K File 001-03480

MDU RESOURCES GROUP, INC. FORM 8-K

Filing date: 05 Feb 2026
Reporting date: 05 Feb 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-03480

8-K

Filing date: 16 Jan 2026
Reporting date: 15 Jan 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

4 filing

Filing date: 02 Jan 2026
Reporting date: 31 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 02 Jan 2026
Reporting date: 31 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03480

8-K

Filing date: 29 Dec 2025
Reporting date: 23 Dec 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-03480

8-K

Filing date: 12 Dec 2025
Reporting date: 11 Dec 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-03480

FORM 8-K

Filing date: 05 Dec 2025
Reporting date: 03 Dec 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

424B5 File 333-289348

424B5

Filing date: 05 Dec 2025
Reporting date: Not listed
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

424B5 File 333-289348

424B5

Filing date: 03 Dec 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03480

MDU RESOURCES FORM 8-K CAP EX

Filing date: 20 Nov 2025
Reporting date: 20 Nov 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

4 filing

Filing date: 14 Nov 2025
Reporting date: 13 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 14 Nov 2025
Reporting date: 13 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 14 Nov 2025
Reporting date: 13 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 14 Nov 2025
Reporting date: 13 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 14 Nov 2025
Reporting date: 13 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 14 Nov 2025
Reporting date: 13 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 14 Nov 2025
Reporting date: 13 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 14 Nov 2025
Reporting date: 13 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-03480

MDU RESOURCES FORM 10-Q

Filing date: 10 Nov 2025
Reporting date: 30 Sep 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-03480

MDU RESOURCES FORM 8-K EARNINGS RELEASE

Filing date: 06 Nov 2025
Reporting date: 06 Nov 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

4 filing

Filing date: 01 Oct 2025
Reporting date: 30 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 01 Oct 2025
Reporting date: 30 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 09 Sep 2025
Reporting date: 08 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 19 Aug 2025
Reporting date: 19 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

3

3 filing

Filing date: 14 Aug 2025
Reporting date: 12 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

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