# MDU Resources Group Inc: filings

MDU · NYSE · CIK 67716 · [Utilities](/sectors/utilities.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/mdu.md) · [Financials](/companies/mdu/financials.md) · [Filings](/companies/mdu/filings.md) · [Insiders](/companies/mdu/insiders.md)

## Reports and events: 333 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 570, 8-K 227, 10-Q 53, SC 13G/A 42, 3 41, 10-K 18, 11-K 18, DEF 14A 18, SC 13G 15, CORRESP 13, DEFA14A 13, SD 12, ARS 11, UPLOAD 11, 8-K/A 10, 5 9, S-3ASR 7, S-8 7, S-8 POS 7, SCHEDULE 13G 7, SC 13D/A 6, 424B5 5, 4/A 3, 8-A12B/A 3, PRE 14A 3, SCHEDULE 13G/A 3, 25-NSE 2, 3/A 2, NO ACT 2, POSASR 2, 11-K/A 1, 15-12B 1, 424B2 1, 424B3 1, 5/A 1, 8-A12B 1, 8-K12B 1, AW 1, DEFR14A 1, POS AM 1, SC 13D 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-08-06 | 20:20 ET | [10-Q](/filings/0000067716-26-000072.md) | Quarterly report, period 2026-06-30 | 0000067716-26-000072 |
| 2026-08-06 | 12:35 ET | [8-K](/filings/0000067716-26-000064.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-26-000064 |
| 2026-05-13 | 20:04 ET | [8-K](/filings/0000067716-26-000054.md) | 5.02 Departure or appointment of officers or directors; 5.05 Item not in the standard list; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000067716-26-000054 |
| 2026-05-07 | 21:12 ET | [10-Q](/filings/0000067716-26-000050.md) | Quarterly report, period 2026-03-31 | 0000067716-26-000050 |
| 2026-05-07 | 12:33 ET | [8-K](/filings/0000067716-26-000045.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-26-000045 |
| 2026-04-01 | 12:22 ET | [DEF 14A](/filings/0000067716-26-000040.md) | Proxy statement, period 2026-05-11 | 0000067716-26-000040 |
| 2026-02-20 | 13:32 ET | [10-K](/filings/0000067716-26-000014.md) | Annual report, period 2025-12-31 | 0000067716-26-000014 |
| 2026-02-05 | 13:32 ET | [8-K](/filings/0000067716-26-000008.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-26-000008 |
| 2026-01-16 | 21:53 ET | [8-K](/filings/0000067716-26-000005.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000067716-26-000005 |
| 2025-12-29 | 21:40 ET | [8-K](/filings/0001539497-25-003350.md) | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001539497-25-003350 |
| 2025-12-12 | 21:32 ET | [8-K](/filings/0000067716-25-000095.md) | 1.01 Entry into a material agreement; 2.01 Completion of an acquisition or disposition; 9.01 Financial statements and exhibits | 0000067716-25-000095 |
| 2025-12-05 | 21:01 ET | [8-K](/filings/0001539497-25-003175.md) | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001539497-25-003175 |
| 2025-11-20 | 21:33 ET | [8-K](/filings/0000067716-25-000092.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-25-000092 |
| 2025-11-10 | 13:31 ET | [10-Q](/filings/0000067716-25-000090.md) | Quarterly report, period 2025-09-30 | 0000067716-25-000090 |
| 2025-11-06 | 13:35 ET | [8-K](/filings/0000067716-25-000087.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-25-000087 |
| 2025-08-13 | 20:49 ET | [8-K](/filings/0000067716-25-000083.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-25-000083 |
| 2025-08-07 | 21:20 ET | [8-K](/filings/0001539497-25-002057.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001539497-25-002057 |
| 2025-08-07 | 12:37 ET | [10-Q](/filings/0000067716-25-000074.md) | Quarterly report, period 2025-06-30 | 0000067716-25-000074 |
| 2025-08-07 | 12:31 ET | [8-K](/filings/0000067716-25-000073.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-25-000073 |
| 2025-05-15 | 20:04 ET | [8-K](/filings/0000067716-25-000052.md) | 5.02 Departure or appointment of officers or directors; 5.05 Item not in the standard list; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000067716-25-000052 |
| 2025-05-08 | 12:38 ET | [10-Q](/filings/0000067716-25-000042.md) | Quarterly report, period 2025-03-31 | 0000067716-25-000042 |
| 2025-05-08 | 12:32 ET | [8-K](/filings/0000067716-25-000041.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-25-000041 |
| 2025-04-03 | 12:14 ET | [DEF 14A](/filings/0000067716-25-000031.md) | Proxy statement, period 2025-05-13 | 0000067716-25-000031 |
| 2025-02-20 | 19:35 ET | [10-K](/filings/0000067716-25-000016.md) | Annual report, period 2024-12-31 | 0000067716-25-000016 |
| 2025-02-14 | 21:36 ET | [8-K](/filings/0000067716-25-000012.md) | 1.01 Entry into a material agreement; 5.03 Amendment to articles or bylaws; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-25-000012 |
| 2025-02-06 | 13:33 ET | [8-K](/filings/0000067716-25-000007.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-25-000007 |
| 2024-11-21 | 21:33 ET | [8-K](/filings/0000067716-24-000113.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-24-000113 |
| 2024-11-14 | 21:38 ET | [8-K](/filings/0000067716-24-000111.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000067716-24-000111 |
| 2024-11-07 | 13:47 ET | [10-Q](/filings/0000067716-24-000107.md) | Quarterly report, period 2024-09-30 | 0000067716-24-000107 |
| 2024-11-07 | 13:34 ET | [8-K](/filings/0000067716-24-000105.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-24-000105 |
| 2024-11-06 | 01:38 ET | [8-K](/filings/0000067716-24-000100.md) | 9.01 Financial statements and exhibits | 0000067716-24-000100 |
| 2024-11-01 | 20:31 ET | [SC 13D/A](/filings/0001011438-24-000522.md) | Ownership report, active investor, amended | 0001011438-24-000522 |
| 2024-11-01 | 12:40 ET | [8-K](/filings/0001140361-24-044885.md) | 1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 2.01 Completion of an acquisition or disposition; 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001140361-24-044885 |
| 2024-10-17 | 12:37 ET | [8-K](/filings/0000067716-24-000097.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-24-000097 |
| 2024-10-02 | 12:34 ET | [8-K](/filings/0000067716-24-000092.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000067716-24-000092 |
| 2024-09-03 | 20:36 ET | [8-K](/filings/0000067716-24-000089.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-24-000089 |
| 2024-08-15 | 20:36 ET | [8-K](/filings/0000067716-24-000085.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-24-000085 |
| 2024-08-08 | 12:38 ET | [10-Q](/filings/0000067716-24-000082.md) | Quarterly report, period 2024-06-30 | 0000067716-24-000082 |
| 2024-08-08 | 12:32 ET | [8-K](/filings/0000067716-24-000081.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-24-000081 |
| 2024-07-18 | 20:32 ET | [8-K](/filings/0000067716-24-000074.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000067716-24-000074 |
| 2024-05-20 | 21:33 ET | [8-K](/filings/0000067716-24-000059.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000067716-24-000059 |
| 2024-05-02 | 12:40 ET | [10-Q](/filings/0000067716-24-000055.md) | Quarterly report, period 2024-03-31 | 0000067716-24-000055 |
| 2024-05-02 | 12:32 ET | [8-K](/filings/0000067716-24-000054.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-24-000054 |
| 2024-03-29 | 14:07 ET | [DEF 14A](/filings/0000067716-24-000042.md) | Proxy statement, period 2024-05-14 | 0000067716-24-000042 |
| 2024-03-18 | 21:02 ET | [SC 13D/A](/filings/0001011438-24-000285.md) | Ownership report, active investor, amended | 0001011438-24-000285 |
| 2024-03-18 | 12:14 ET | [8-K](/filings/0000067716-24-000026.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0000067716-24-000026 |
| 2024-03-13 | 12:32 ET | [8-K](/filings/0000067716-24-000022.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-24-000022 |
| 2024-02-22 | 22:28 ET | [10-K](/filings/0000067716-24-000017.md) | Annual report, period 2023-12-31 | 0000067716-24-000017 |
| 2024-02-21 | 20:35 ET | [8-K](/filings/0000067716-24-000013.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000067716-24-000013 |
| 2024-02-08 | 13:33 ET | [8-K](/filings/0000067716-24-000009.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000067716-24-000009 |

Page 1 of 7. [Older](/companies/mdu/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 14:53 ET. No prices; not investment advice.