{"schema_version":"secwatch.filing_event.v1","accession":"0000067716-24-000089","form_type":"8-K","ticker":"MDU","cik":"0000067716","company_name":"MDU RESOURCES GROUP INC","filed_at":"2024-09-03T23:59:59+00:00","discovered_at":"2026-05-14T18:03:15.622198+00:00","generated_at":"2026-05-31T06:42:35.438862+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"MDU Resources announces anticipated board for Everus spin-off, expects completion in late 2024","bullets":["Four MDU directors (Rosenthal, Della Rocca, Ryan, Sparby) to resign from MDU board upon Everus spin-off completion.","Everus board to have seven directors, six independent; Rosenthal to chair; new directors: Wood, Wynn, Thiede (Everus CEO).","Spin-off expected late 2024, subject to MDU board approval and SEC Form 10 effectiveness.","Spin-off aims to make MDU a pure-play regulated energy delivery business; expected tax-free to stockholders."],"urls":{"canonical":"https://secwatch.observer/filing/0000067716-24-000089","json":"https://secwatch.observer/filing/0000067716-24-000089.json","markdown":"https://secwatch.observer/filing/0000067716-24-000089.md","text":"https://secwatch.observer/filing/0000067716-24-000089.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/67716/000006771624000089/0000067716-24-000089-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/67716/000006771624000089/mdu-20240903.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T06:42:35.438862+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"30e144366b","claim":"Edward A. Ryan resigned as Director at MDU RESOURCES GROUP INC.","evidence_excerpt":"each of Dale S. Rosenthal, Michael S. Della Rocca, Edward A. Ryan and David M. Sparby (collectively, the “Prospective Everus Construction Directors”) are expected to resign as directors of the Company","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/67716/000006771624000089/0000067716-24-000089-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"cbac6d5136","claim":"Dale S. Rosenthal resigned as Director at MDU RESOURCES GROUP INC.","evidence_excerpt":"each of Dale S. Rosenthal, Michael S. Della Rocca, Edward A. Ryan and David M. Sparby (collectively, the “Prospective Everus Construction Directors”) are expected to resign as directors of the Company","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/67716/000006771624000089/0000067716-24-000089-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"eba137ca3c","claim":"Michael S. Della Rocca resigned as Director at MDU RESOURCES GROUP INC.","evidence_excerpt":"each of Dale S. Rosenthal, Michael S. Della Rocca, Edward A. Ryan and David M. Sparby (collectively, the “Prospective Everus Construction Directors”) are expected to resign as directors of the Company","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/67716/000006771624000089/0000067716-24-000089-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"fe7a3ee8d7","claim":"David M. Sparby resigned as Director at MDU RESOURCES GROUP INC.","evidence_excerpt":"each of Dale S. Rosenthal, Michael S. Della Rocca, Edward A. Ryan and David M. Sparby (collectively, the “Prospective Everus Construction Directors”) are expected to resign as directors of the Company","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/67716/000006771624000089/0000067716-24-000089-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}