MDU RESOURCES GROUP INC — All Filings
1,006 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
10-K/A
10-Q
11-K
11-K/A
15-12B
25-NSE
3
3/A
4
4/A
424B2
424B3
424B5
5
5/A
8-A12B
8-A12B/A
8-K
8-K/A
8-K12B
ARS
AW
CORRESP
DEF 14A
DEFA14A
DEFR14A
NO ACT
POS AM
POSASR
PRE 14A
PRER14A
S-3
S-3/A
S-3ASR
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-001749 | Mar 27, 2026 | — |
| 10-K | 10-K | 0000067716-26-000014 | Feb 20, 2026 | Dec 31, 2025 |
| 4 | — | 0001225208-26-002189 | Feb 19, 2026 | Feb 17, 2026 |
| 4 | — | 0001225208-26-002191 | Feb 19, 2026 | Feb 17, 2026 |
| 4 | — | 0001225208-26-002188 | Feb 19, 2026 | Feb 17, 2026 |
| 4 | — | 0001225208-26-002190 | Feb 19, 2026 | Feb 17, 2026 |
| 4 | — | 0001225208-26-002187 | Feb 19, 2026 | Feb 17, 2026 |
| 4 | — | 0001225208-26-002186 | Feb 19, 2026 | Feb 17, 2026 |
| 4 | — | 0001225208-26-002185 | Feb 19, 2026 | Feb 17, 2026 |
| 4 | — | 0001225208-26-002184 | Feb 19, 2026 | Feb 17, 2026 |
| 4 | — | 0001225208-26-001965 | Feb 17, 2026 | Feb 13, 2026 |
| SCHEDULE 13G | — | 0000313028-26-000007 | Feb 11, 2026 | — |
| 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | 0000067716-26-000008 | Feb 5, 2026 | — |
| 8-K | 8-K | 0000067716-26-000005 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | — | 0001225208-26-000029 | Jan 2, 2026 | Dec 31, 2025 |
| 4 | — | 0001225208-26-000028 | Jan 2, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001539497-25-003350 | Dec 29, 2025 | Dec 23, 2025 |
| 8-K | 8-K | 0000067716-25-000095 | Dec 12, 2025 | Dec 11, 2025 |
| 8-K | FORM 8-K | 0001539497-25-003175 | Dec 5, 2025 | Dec 3, 2025 |
| 424B5 | 424B5 | 0001539497-25-003160 | Dec 5, 2025 | — |
| 424B5 | 424B5 | 0001539497-25-003113 | Dec 3, 2025 | — |
| 8-K | MDU RESOURCES FORM 8-K CAP EX | 0000067716-25-000092 | Nov 20, 2025 | — |
| 4 | — | 0001225208-25-009223 | Nov 14, 2025 | Nov 13, 2025 |
| 4 | — | 0001225208-25-009222 | Nov 14, 2025 | Nov 13, 2025 |
| 4 | — | 0001225208-25-009221 | Nov 14, 2025 | Nov 13, 2025 |
| 4 | — | 0001225208-25-009220 | Nov 14, 2025 | Nov 13, 2025 |
| 4 | — | 0001225208-25-009218 | Nov 14, 2025 | Nov 13, 2025 |
| 4 | — | 0001225208-25-009219 | Nov 14, 2025 | Nov 13, 2025 |
| 4 | — | 0001225208-25-009217 | Nov 14, 2025 | Nov 13, 2025 |
| 4 | — | 0001225208-25-009216 | Nov 14, 2025 | Nov 13, 2025 |
| 10-Q | MDU RESOURCES FORM 10-Q | 0000067716-25-000090 | Nov 10, 2025 | Sep 30, 2025 |
| 8-K | MDU RESOURCES FORM 8-K EARNINGS RELEASE | 0000067716-25-000087 | Nov 6, 2025 | — |
| 4 | — | 0001225208-25-008199 | Oct 1, 2025 | Sep 30, 2025 |
| 4 | — | 0001225208-25-008198 | Oct 1, 2025 | Sep 30, 2025 |
| 4 | — | 0001225208-25-007846 | Sep 9, 2025 | Sep 8, 2025 |
| 4 | — | 0001225208-25-007348 | Aug 19, 2025 | — |
| 3 | — | 0001225208-25-007280 | Aug 14, 2025 | Aug 12, 2025 |
| 3 | — | 0001225208-25-007279 | Aug 14, 2025 | Aug 12, 2025 |
| 8-K | 8-K | 0000067716-25-000083 | Aug 13, 2025 | Aug 12, 2025 |
| 8-K | FORM 8-K | 0001539497-25-002057 | Aug 7, 2025 | — |
| 424B5 | 424B5 | 0001539497-25-002056 | Aug 7, 2025 | — |
| S-3ASR | S-3ASR | 0001539497-25-002050 | Aug 7, 2025 | — |
| 10-Q | MDU RESOURCES FORM 10-Q | 0000067716-25-000074 | Aug 7, 2025 | Jun 30, 2025 |
| 8-K | MDU RESOURCES FORM 8-K | 0000067716-25-000073 | Aug 7, 2025 | — |
| 4 | — | 0001225208-25-006697 | Jul 16, 2025 | May 15, 2025 |
| 4 | — | 0001225208-25-006247 | Jul 1, 2025 | Jun 30, 2025 |
| 4 | — | 0001225208-25-006246 | Jul 1, 2025 | Jun 30, 2025 |
| 11-K/A | MDU RESOURCES GROUP, INC. FORM 11-K/A | 0000067716-25-000064 | Jun 23, 2025 | Dec 31, 2024 |
| 11-K | MDU RESOURCES GROUP, INC. FORM 11-K | 0000067716-25-000061 | Jun 18, 2025 | Dec 31, 2024 |
| SD | SD | 0000067716-25-000058 | May 30, 2025 | — |