{"schema_version":"secwatch.filing_event.v1","accession":"0001510295-22-000071","form_type":"8-K","ticker":"MPC","cik":"0001510295","company_name":"Marathon Petroleum Corp","filed_at":"2022-10-11T23:59:59+00:00","discovered_at":"2026-05-14T18:03:50.921550+00:00","generated_at":"2026-06-23T04:22:15.570999+00:00","sec_items":["8.01","9.01"],"event_type":"leadership","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Marathon Petroleum CEO Michael Hennigan reports no sign of cancer after treatment","bullets":["CEO Michael Hennigan completed seven-week radiation and chemotherapy for throat cancer diagnosed in April 2022.","Recent tests and scans show no sign of cancer; prognosis is excellent.","Hennigan will continue to be monitored as a routine precaution.","He remains focused on leading Marathon Petroleum and thanked employees and shareholders for support."],"urls":{"canonical":"https://secwatch.observer/filing/0001510295-22-000071","json":"https://secwatch.observer/filing/0001510295-22-000071.json","markdown":"https://secwatch.observer/filing/0001510295-22-000071.md","text":"https://secwatch.observer/filing/0001510295-22-000071.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1510295/000151029522000071/0001510295-22-000071-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1510295/000151029522000071/mpc-20221011.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-23T04:22:15.570999+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"}