secwatch.observer — SEC 8-K summary ====================================== Issuer: MPLX LP (MPLX) CIK: 0001552000 Form: 8-K Filed at: 2026-03-18T23:59:59+00:00 Accession: 0001552000-26-000012 Event type: leadership Sentiment: neutral Materiality: 0.40 Item codes: 5.02 LLM model: deepseek-v4-flash:cloud@v2 MPLX appoints Erin Brzezinski as VP & Controller (principal accounting officer) effective April 1, 2026 -------------------------------------------------------------------------------- - 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. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1552000/000155200026000012/0001552000-26-000012-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1552000/000155200026000012/mplx-20260316.htm HTML page: https://secwatch.observer/filing/0001552000-26-000012 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer