Mdu Resources MDU SEC Filings

NYSE MDU
$19.27 +0.15 (+0.78%)
As of: Oct 22, 2026 · 1:04 PM EDT
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing Mdu Resources Group Inc (MDU) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
1SCHEDULE 13GBeneficial Ownership0000354204-26-001079Oct 8, 2026 2:25 PM
24Insider Transaction0001225208-26-008065Oct 1, 2026 1:06 AM
34Insider Transaction0001225208-26-008064Oct 1, 2026 1:05 AM
4SCHEDULE 13GBeneficial Ownership0000313028-26-000040Aug 12, 2026 3:05 PM
5S-8Prospectus0000067716-26-000076Aug 6, 2026 8:44 PM
6S-8Prospectus0000067716-26-000075Aug 6, 2026 8:34 PM
710-QQuarterly & Annual Report0000067716-26-000072Aug 6, 2026 8:20 PM
88-KCurrent Report0000067716-26-000064Aug 6, 2026 12:35 PM
9SCHEDULE 13GBeneficial Ownership Report0000354204-26-000843Jul 14, 2026 5:27 PM
104Insider Transaction0001225208-26-006307Jul 1, 2026 1:22 AM
114Insider Transaction0001225208-26-006306Jul 1, 2026 1:22 AM
1211-KOthers0000067716-26-000059Jun 18, 2026 8:01 PM
138-KCurrent Report0000067716-26-000054May 13, 2026 4:04 PM
14SCHEDULE 13GBeneficial Ownership0000313028-26-000033May 13, 2026 3:25 PM
1510-QQuarterly & Annual Report0000067716-26-000050May 7, 2026 9:12 PM
168-KCurrent Report0000067716-26-000045May 7, 2026 12:33 PM
17SCHEDULE 13GBeneficial Ownership Report0002100119-26-000863Apr 30, 2026 11:45 AM
18SCHEDULE 13GBeneficial Ownership Report0002100121-26-000489Apr 29, 2026 6:14 PM
19SCHEDULE 13GBeneficial Ownership Report0000354204-26-000563Apr 9, 2026 5:42 PM
204Insider Transaction0001225208-26-004136Apr 1, 2026 9:25 PM
214Insider Transaction0001225208-26-004136Apr 1, 2026 9:25 PM
224Insider Transaction0001225208-26-004136Apr 1, 2026 9:25 PM
234Insider Transaction0001225208-26-004135Apr 1, 2026 9:25 PM
244Insider Transaction0001225208-26-004135Apr 1, 2026 9:25 PM
254Insider Transaction0001225208-26-004135Apr 1, 2026 9:25 PM
26ARSOthers0000067716-26-000042Apr 1, 2026 12:29 PM
27DEFA14AOthers0000067716-26-000041Apr 1, 2026 12:25 PM
28DEF 14AOthers0000067716-26-000040Apr 1, 2026 12:22 PM
29SCHEDULE 13GBeneficial Ownership Report0000102909-26-001749Mar 27, 2026 2:31 PM
3010-KQuarterly & Annual Report0000067716-26-000014Feb 20, 2026 1:32 PM
314Insider Transaction0001225208-26-002189Feb 19, 2026 11:22 PM
324Insider Transaction0001225208-26-002189Feb 19, 2026 11:22 PM
334Insider Transaction0001225208-26-002189Feb 19, 2026 11:22 PM
344Insider Transaction0001225208-26-002191Feb 19, 2026 11:22 PM
354Insider Transaction0001225208-26-002191Feb 19, 2026 11:22 PM
364Insider Transaction0001225208-26-002191Feb 19, 2026 11:22 PM
374Insider Transaction0001225208-26-002188Feb 19, 2026 11:22 PM
384Insider Transaction0001225208-26-002188Feb 19, 2026 11:22 PM
394Insider Transaction0001225208-26-002188Feb 19, 2026 11:22 PM
404Insider Transaction0001225208-26-002187Feb 19, 2026 11:22 PM
414Insider Transaction0001225208-26-002190Feb 19, 2026 11:22 PM
424Insider Transaction0001225208-26-002190Feb 19, 2026 11:22 PM
434Insider Transaction0001225208-26-002187Feb 19, 2026 11:22 PM
444Insider Transaction0001225208-26-002190Feb 19, 2026 11:22 PM
454Insider Transaction0001225208-26-002187Feb 19, 2026 11:22 PM
464Insider Transaction0001225208-26-002186Feb 19, 2026 11:22 PM
474Insider Transaction0001225208-26-002186Feb 19, 2026 11:22 PM
484Insider Transaction0001225208-26-002186Feb 19, 2026 11:22 PM
494Insider Transaction0001225208-26-002185Feb 19, 2026 11:22 PM
504Insider Transaction0001225208-26-002185Feb 19, 2026 11:22 PM
...

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