Summary
Marathon Petroleum Corporation (MPC) announced a significant leadership transition, appointing Maryann T. Mannen as Chief Executive Officer, effective August 1, 2024. Ms. Mannen, currently President and previously CFO, will succeed Michael J. Hennigan, who will transition to Executive Chairman of the Board. This move signifies a planned succession, with Ms. Mannen bringing extensive experience from her roles within MPC and prior leadership positions at TechnipFMC. The transition also includes changes to the Board of Directors, with Ms. Mannen being elected as a director effective August 1, 2024, and appointed to the Sustainability and Public Policy Committee. Mr. Hennigan's continued executive role as Chairman, with a waiver of the mandatory retirement policy, suggests a desire for continued strategic guidance from him during this period. Specific compensation adjustments for the new roles are pending and will be disclosed in an amendment to this filing.
Key Highlights
- 1Maryann T. Mannen appointed Chief Executive Officer, effective August 1, 2024.
- 2Michael J. Hennigan to transition from CEO to Executive Chairman of the Board, effective August 1, 2024.
- 3Mandatory retirement policy waived indefinitely for Mr. Hennigan to allow his continued executive service as Chairman.
- 4Ms. Mannen will also assume the role of President and CEO of MPLX GP LLC, effective August 1, 2024.
- 5Maryann T. Mannen elected as a Director to the Board, effective August 1, 2024, and appointed to the Sustainability and Public Policy Committee.
- 6Compensation adjustments for the new executive roles are not yet determined and will be disclosed later.