{"schema_version":"secwatch.filing_event.v1","accession":"0000067716-25-000083","form_type":"8-K","ticker":"MDU","cik":"0000067716","company_name":"MDU RESOURCES GROUP INC","filed_at":"2025-08-13T23:59:59+00:00","discovered_at":"2026-05-14T18:02:46.168951+00:00","generated_at":"2026-05-17T14:05:32.393728+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"MDU Resources elects Charles M. Kelley and Tammy J. Miller to board of directors","bullets":["Board expanded to nine; Kelley and Miller elected effective Aug. 12, 2025 to serve until 2026 annual meeting.","Kelley brings 40+ years in natural gas; former ONEOK SVP, oversaw $600M+ in capital projects.","Miller, former ND lieutenant governor and ex-CEO of Border States, which grew from $485M to $2.5B in sales.","Both deemed independent under NYSE standards and will serve on the Audit Committee."],"urls":{"canonical":"https://secwatch.observer/filing/0000067716-25-000083","json":"https://secwatch.observer/filing/0000067716-25-000083.json","markdown":"https://secwatch.observer/filing/0000067716-25-000083.md","text":"https://secwatch.observer/filing/0000067716-25-000083.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/67716/000006771625000083/0000067716-25-000083-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/67716/000006771625000083/mdu-20250812.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T14:05:32.393728+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}