MDU RESOURCES GROUP INC - MDU
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 26
Latest filed: May 13, 2026
| Form | Count |
|---|---|
| 4 | 13 |
| 8-K | 7 |
| SCHEDULE 13G | 5 |
| SCHEDULE 13G/A | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| May 13, 2026 | 8-K | May 11, 2026 | 0000067716-26-000054 | View |
| May 13, 2026 | SCHEDULE 13G | — | 0000313028-26-000033 | View |
| May 07, 2026 | 8-K | May 07, 2026 | 0000067716-26-000045 | View |
| Apr 30, 2026 | SCHEDULE 13G | — | 0002100119-26-000863 | View |
| Apr 29, 2026 | SCHEDULE 13G | — | 0002100121-26-000489 | View |
| Apr 09, 2026 | SCHEDULE 13G | — | 0000354204-26-000563 | View |
| Apr 01, 2026 | 4 | Mar 31, 2026 | 0001225208-26-004135 | View |
| Apr 01, 2026 | 4 | Mar 31, 2026 | 0001225208-26-004136 | View |
| Mar 27, 2026 | SCHEDULE 13G/A | — | 0000102909-26-001749 | View |
| Feb 19, 2026 | 4 | Feb 17, 2026 | 0001225208-26-002184 | View |
| Feb 19, 2026 | 4 | Feb 17, 2026 | 0001225208-26-002185 | View |
| Feb 19, 2026 | 4 | Feb 17, 2026 | 0001225208-26-002186 | View |
| Feb 19, 2026 | 4 | Feb 17, 2026 | 0001225208-26-002187 | View |
| Feb 19, 2026 | 4 | Feb 17, 2026 | 0001225208-26-002190 | View |
| Feb 19, 2026 | 4 | Feb 17, 2026 | 0001225208-26-002188 | View |
| Feb 19, 2026 | 4 | Feb 17, 2026 | 0001225208-26-002191 | View |
| Feb 19, 2026 | 4 | Feb 17, 2026 | 0001225208-26-002189 | View |
| Feb 17, 2026 | 4 | Feb 13, 2026 | 0001225208-26-001965 | View |
| Feb 11, 2026 | SCHEDULE 13G | — | 0000313028-26-000007 | View |
| Feb 05, 2026 | 8-K | Feb 05, 2026 | 0000067716-26-000008 | View |
| Jan 16, 2026 | 8-K | Jan 15, 2026 | 0000067716-26-000005 | View |
| Jan 02, 2026 | 4 | Dec 31, 2025 | 0001225208-26-000028 | View |
| Jan 02, 2026 | 4 | Dec 31, 2025 | 0001225208-26-000029 | View |
| Dec 29, 2025 | 8-K | Dec 23, 2025 | 0001539497-25-003350 | View |
| Dec 12, 2025 | 8-K | Dec 11, 2025 | 0000067716-25-000095 | View |
| Dec 05, 2025 | 8-K | Dec 03, 2025 | 0001539497-25-003175 | View |