{"schema_version":"secwatch.filing_event.v1","accession":"0001510295-22-000028","form_type":"8-K","ticker":"MPC","cik":"0001510295","company_name":"Marathon Petroleum Corp","filed_at":"2022-04-21T23:59:59+00:00","discovered_at":"2026-05-14T18:04:00.973359+00:00","generated_at":"2026-06-26T05:42:20.768520+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"negative","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"MPC CEO Michael Hennigan diagnosed with throat cancer, expects to continue as CEO during treatment","bullets":["Michael J. Hennigan discovered a tumor in his throat via a health exam; cancer is limited to throat and nearby lymph nodes.","Prognosis is encouraging; cancer caught early and described as curable with a treatment protocol of radiation and chemotherapy over seven weeks.","Hennigan will remain actively involved in running the company as CEO; expects to limit travel and may limit speaking at times.","Board of Directors has been fully apprised and is supportive.","No change in leadership or operations announced; company emphasizes business outlook remains bright."],"urls":{"canonical":"https://secwatch.observer/filing/0001510295-22-000028","json":"https://secwatch.observer/filing/0001510295-22-000028.json","markdown":"https://secwatch.observer/filing/0001510295-22-000028.md","text":"https://secwatch.observer/filing/0001510295-22-000028.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1510295/000151029522000028/0001510295-22-000028-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1510295/000151029522000028/mpc-20220421.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-26T05:42:20.768520+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"}