{"schema_version":"secwatch.filing_event.v1","accession":"0001510295-23-000080","form_type":"8-K","ticker":"MPC","cik":"0001510295","company_name":"Marathon Petroleum Corp","filed_at":"2023-12-21T23:59:59+00:00","discovered_at":"2026-05-14T18:03:29.313931+00:00","generated_at":"2026-06-07T09:00:36.770349+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Marathon Petroleum names Maryann Mannen President, John Quaid CFO effective Jan 1, 2024","bullets":["Maryann T. Mannen promoted from EVP/CFO to President of MPC, effective Jan 1, 2024.","Current CEO Michael J. Hennigan ceases as President but remains CEO and chairman of MPLX GP.","John J. Quaid appointed EVP and CFO of MPC, succeeding Mannen, effective Jan 1, 2024.","Mannen's annual base salary set at $1,000,000; Quaid's at $635,000, with bonus and LTI targets.","C. Kristopher Hagedorn becomes EVP/CFO of MPLX, continues as MPC Sr. VP/Controller temporarily."],"urls":{"canonical":"https://secwatch.observer/filing/0001510295-23-000080","json":"https://secwatch.observer/filing/0001510295-23-000080.json","markdown":"https://secwatch.observer/filing/0001510295-23-000080.md","text":"https://secwatch.observer/filing/0001510295-23-000080.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/0001510295-23-000080-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/mpc-20231221.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-07T09:00:36.770349+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":"c6884cc70f","claim":"Maryann T. Mannen was appointed as President at Marathon Petroleum Corp.","evidence_excerpt":"On December 21, 2023, Marathon Petroleum Corporation (the “Company”) announced the appointment of Maryann T. Mannen to serve as President, effective January 1, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/0001510295-23-000080-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"President"}],"fact_type":"executive_change"},{"claim_id":"ee64adc14e","claim":"John J. Quaid was appointed as Executive Vice President and Chief Financial Officer at Marathon Petroleum Corp.","evidence_excerpt":"On December 21, 2023, the Company announced the appointment of John J. Quaid to serve as its Executive Vice President and Chief Financial Officer, effective January 1, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/0001510295-23-000080-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Executive Vice President and Chief Financial Officer"}],"fact_type":"executive_change"},{"claim_id":"f3fbd31a49","claim":"Michael J. Hennigan changed role as President at Marathon Petroleum Corp.","evidence_excerpt":"Michael J. Hennigan, who will cease to serve as President of the Company effective January 1, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/0001510295-23-000080-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"ceased"},{"label":"Role","value":"President"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}