Mdu Resources Group Inc SEC filings MDU
Mdu Resources Group Inc has 1,004 filings in SEC EDGAR's recent list, going back to Dec 8, 2010. Its latest annual report, Form ARS, was filed on Apr 1, 2026 for the period ended Mar 31, 2026. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| ARS | Annual report to shareholders | Apr 1, 2026 | Mar 31, 2026 |
| 10-K | Annual report | Feb 20, 2026 | Dec 31, 2025 |
| ARS | Annual report to shareholders | Apr 3, 2025 | Mar 27, 2025 |
| 10-K | Annual report | Feb 20, 2025 | Dec 31, 2024 |
| ARS | Annual report to shareholders | Mar 29, 2024 | Dec 31, 2023 |
| 10-K | Annual report | Feb 22, 2024 | Dec 31, 2023 |
| ARS | Annual report to shareholders | Mar 24, 2023 | Dec 31, 2022 |
| 10-K | Annual report | Feb 24, 2023 | Dec 31, 2022 |
| 10-K | Annual report | Feb 23, 2022 | Dec 31, 2021 |
| 10-K | Annual report | Feb 19, 2021 | Dec 31, 2020 |
| 10-K | Annual report | Feb 21, 2020 | Dec 31, 2019 |
| 10-K | Annual report | Feb 22, 2019 | Dec 31, 2018 |
| 10-K | Annual report | Feb 23, 2018 | Dec 31, 2017 |
| 10-K | Annual report | Feb 24, 2017 | Dec 31, 2016 |
| 10-K | Annual report | Feb 19, 2016 | Dec 31, 2015 |
| ARS | Annual report to shareholders | Mar 18, 2015 | Dec 31, 2014 |
| 10-K | Annual report | Feb 20, 2015 | Dec 31, 2014 |
| ARS | Annual report to shareholders | Mar 12, 2014 | Dec 31, 2013 |
| 10-K | Annual report | Feb 21, 2014 | Dec 31, 2013 |
| ARS | Annual report to shareholders | Mar 14, 2013 | Dec 31, 2012 |
| 10-K | Annual report | Feb 28, 2013 | Dec 31, 2012 |
| ARS | Annual report to shareholders | Mar 9, 2012 | Dec 31, 2011 |
| 10-K | Annual report | Feb 24, 2012 | Dec 31, 2011 |
| ARS | Annual report to shareholders | Mar 11, 2011 | Dec 31, 2010 |
| 10-K | Annual report | Feb 23, 2011 | Dec 31, 2010 |
Showing 25 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Natural Gas Distribution (SIC 4924)
- Listed as
- MDU (NYSE)
- Fiscal year ends
- December 31
- Headquarters
- Bismarck, ND
- SEC filer status
- Large accelerated filer
- SEC CIK
- 67716
- Former names
- MDU RESOURCES GROUP INC (until Nov 5, 2026)
Other Natural Gas Distribution companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.