Mplx LP
SEC CIK 1552000 · MPLX · last insider filing 2026-05-19
Directors (from insider filings)
| Name | Capacity as filed | Filings |
|---|---|---|
| Helms Christopher A | Director | filed 2012 - 2026 |
| Surma John P | Director | filed 2012 - 2026 |
| Semple Frank M | Director · Vice Chairman | filed 2015 - 2026 |
| Walker Ray N JR | Director | filed 2025 - 2026 |
| Stice J Michael | Director | filed 2018 - 2026 |
| Peiffer Garry L. | Director · President | filed 2012 - 2026 |
| Breves Christine S | Director | filed 2022 - 2026 |
| Seaman Maryann T. | Director · President & CEO | filed 2021 - 2026 |
| Hagedorn Carl Kristopher | Director · VP and Controller | filed 2017 - 2026 |
| Khoury Maria A | Director | filed 2026 - 2026 |
| Hennigan Michael J | Director · President & CEO | filed 2017 - 2025 |
| Quaid John J | Director · Exec VP and CFO | filed 2021 - 2025 |
| Sandman DAN D | Director | filed 2012 - 2023 |
| Beall Pamela K.M. | Director · VP, Investor Relations | filed 2012 - 2021 |
| Templin Donald C. | Director · VP and Chief Financial Officer | filed 2012 - 2021 |
| Beatty Michael L | Director | filed 2015 - 2021 |
| Marathon Petroleum Corp | Director | filed 2012 - 2021 |
| Mplx Logistics Holdings LLC | Director | filed 2012 - 2021 |
| Mplx GP LLC | Director | filed 2012 - 2021 |
| MPC Investment LLC | Director | filed 2012 - 2021 |
| Heminger Gary R. | Director · Chief Executive Officer | filed 2012 - 2020 |
| Goff Gregory James | Director | filed 2018 - 2019 |
| Griffith Timothy T. | Director · Vice President and Treasurer | filed 2012 - 2019 |
| Daberko David A. | Director | filed 2012 - 2018 |
| Mplx Holdings Inc. | Director | filed 2016 - 2018 |
| Wilson C. Richard | Director | filed 2012 - 2017 |
| Markwest Hydrocarbon L.L.C. | Director | filed 2016 - 2016 |
Officers (from insider filings)
| Name | Title as filed | Filings |
|---|---|---|
| Brzezinski Erin M | VP and Controller | filed 2026 - 2026 |
| Floerke Gregory Scott | Exec. VP and COO | filed 2015 - 2026 |
| Lyon Shawn M | Senior VP, Log. & Storage | filed 2022 - 2026 |
| Benson Molly R | Chief Legal Ofc & Corp Sec | filed 2024 - 2026 |
| Iten Rebecca L | VP and Controller | filed 2025 - 2025 |
| Gagle Suzanne | VP and Gen Counsel | filed 2017 - 2023 |
| Kaczynski Thomas | VP, Finance and Treasurer | filed 2015 - 2022 |
| Aydt Timothy J | Exec. VP and Chief Comm Ofc. | filed 2020 - 2022 |
| Wright Kelly D | VP and Controller | filed 2021 - 2021 |
| Swearingen John S | VP, Crude Oil & Ref Prod Pipe | filed 2015 - 2020 |
| Bromley C Corwin | Exec. VP and Gen Counsel | filed 2015 - 2017 |
| Rosson Paula L | Senior VP and CAO | filed 2015 - 2017 |
| Nickerson Randy S | Exec VP and CCO | filed 2016 - 2017 |
| Masten Nancy | Exec VP and CFO | filed 2015 - 2016 |
| Pierson Craig O. | Vice President, Operations | filed 2012 - 2016 |
| Mollenkopf John C | Exec VP and COO | filed 2015 - 2015 |
| Feldman Ian D | Controller | filed 2014 - 2015 |
| Wilder J. Michael | VP, General Counsel & Sec | filed 2012 - 2015 |
| Shaffner George P. | VP and Chief Operating Officer | filed 2012 - 2015 |
| Braddock Michael G. | Vice President and Controller | filed 2012 - 2014 |
About this record
From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.
Source: SEC Insider Transactions Data Sets (Forms 3/4/5), US Federal Government public domain.