{"schema_version":"secwatch.filing_event.v1","accession":"0001552000-26-000012","form_type":"8-K","ticker":"MPLX","cik":"0001552000","company_name":"MPLX LP","filed_at":"2026-03-18T23:59:59+00:00","discovered_at":"2026-05-14T18:02:35.406913+00:00","generated_at":"2026-05-15T09:51:16.371376+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"MPLX appoints Erin Brzezinski as VP & Controller (principal accounting officer) effective April 1, 2026","bullets":["Erin Brzezinski to succeed Rebecca Iten as Vice President and Controller of MPLX GP, effective April 1, 2026.","Brzezinski currently serves as principal accounting officer of Marathon Petroleum (MPC) and will continue in that role.","She will report to MPLX CFO Kris Hagedorn and also to MPC CFO Maria Khoury.","Brzezinski previously served as MPC's Vice President and Controller since Jan 2024, and before that at PwC and Cooper Tire.","No arrangements or family relationships with MPLX directors or officers."],"urls":{"canonical":"https://secwatch.observer/filing/0001552000-26-000012","json":"https://secwatch.observer/filing/0001552000-26-000012.json","markdown":"https://secwatch.observer/filing/0001552000-26-000012.md","text":"https://secwatch.observer/filing/0001552000-26-000012.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1552000/000155200026000012/0001552000-26-000012-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1552000/000155200026000012/mplx-20260316.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T09:51:16.371376+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"}