Company facts
- Headquarters
- Bismarck, North Dakota
- Most recent report
- 10-Q, filed Aug 6, 2026
- Filings on record
- 1,000+ filings
- On EDGAR
- CIK 67716
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 63
News 8 of 214
Prospectuses and Registrations 8 of 26
- S-8 Registration statement for an employee plan Aug 6, 2026
- S-8 Registration statement for an employee plan Aug 6, 2026
- 424B5 Prospectus supplement for an offering Dec 5, 2025
- 424B5 Prospectus supplement for an offering Dec 3, 2025
- 424B5 Prospectus supplement for an offering Aug 7, 2025
- S-3ASR Automatic shelf registration Aug 7, 2025
- S-8 Registration statement for an employee plan Feb 23, 2024
- S-3ASR Automatic shelf registration Aug 14, 2020
Proxies 8 of 31
- DEFA14A Extra proxy material Apr 1, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 1, 2026
- DEFA14A Extra proxy material Apr 3, 2025
- DEF 14A Proxy statement for a shareholder vote Apr 3, 2025
- DEFA14A Extra proxy material Apr 29, 2024
- DEFA14A Extra proxy material Mar 29, 2024
- DEF 14A Proxy statement for a shareholder vote Mar 29, 2024
- DEFA14A Extra proxy material Mar 24, 2023
Ownership 8 of 600
- SCHEDULE 13G Large holder reported a passive stake Aug 12, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Jul 14, 2026
- 4 Insider reported a trade Jul 1, 2026
- 4 Insider reported a trade Jul 1, 2026
- SCHEDULE 13G Large holder reported a passive stake May 13, 2026
- SCHEDULE 13G Large holder reported a passive stake Apr 30, 2026
- SCHEDULE 13G Large holder reported a passive stake Apr 29, 2026
- SCHEDULE 13G Large holder reported a passive stake Apr 9, 2026
Other 8 of 66
- 11-K Employee stock plan report Jun 18, 2026
- ARS Annual report sent to shareholders Apr 1, 2026
- 11-K/A Employee stock plan report, amended Jun 23, 2025
- 11-K Employee stock plan report Jun 18, 2025
- SD Conflict minerals disclosure May 30, 2025
- ARS Annual report sent to shareholders Apr 3, 2025
- 11-K Employee stock plan report Jun 26, 2024
- SD Conflict minerals disclosure May 22, 2024
Everything here comes from Mdu Resources Group Inc's own filings on SEC EDGAR. The filing list is rechecked every hour.