{"schema_version":"secwatch.filing_event.v1","accession":"0001510295-25-000032","form_type":"8-K","ticker":"MPC","cik":"0001510295","company_name":"Marathon Petroleum Corp","filed_at":"2025-04-30T23:59:59+00:00","discovered_at":"2026-05-14T18:02:48.544517+00:00","generated_at":"2026-05-23T02:16:12.395127+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Marathon Petroleum EVP Refining Timothy Aydt to retire; Mike Henschen named successor","bullets":["Timothy J. Aydt, EVP Refining, to retire effective September 2, 2025 after over 40 years of service.","Mike Henschen appointed as EVP Refining, effective June 1, 2025.","Aydt will remain with Marathon Petroleum in a non-executive role from June 1 until his retirement."],"urls":{"canonical":"https://secwatch.observer/filing/0001510295-25-000032","json":"https://secwatch.observer/filing/0001510295-25-000032.json","markdown":"https://secwatch.observer/filing/0001510295-25-000032.md","text":"https://secwatch.observer/filing/0001510295-25-000032.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1510295/000151029525000032/0001510295-25-000032-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1510295/000151029525000032/mpc-20250428.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T02:16:12.395127+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":"0d5ce6e4c5","claim":"Timothy J. Aydt departed as Executive Vice President, Refining at Marathon Petroleum Corp.","evidence_excerpt":"Timothy J. Aydt, Executive Vice President, Refining, of Marathon Petroleum Corporation (the “Company”), notified the Company of his intention to retire from the Company, following over 40 years of service, effective September 2, 2025.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1510295/000151029525000032/0001510295-25-000032-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retire"},{"label":"Role","value":"Executive Vice President, Refining"}],"fact_type":"executive_change"},{"claim_id":"e8f92e18f2","claim":"Mike Henschen was appointed as Executive Vice President, Refining at Marathon Petroleum Corp.","evidence_excerpt":"The Company has announced that Mike Henschen will succeed Mr. Aydt as Executive Vice President, Refining, effective June 1, 2025.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1510295/000151029525000032/0001510295-25-000032-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Executive Vice President, Refining"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}