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Stock impact report

Marathon Petroleum Corp. Elects Maryann T. Mannen as Chairman of the Board

Marathon Petroleum Corporation (MPC) 
Last marathon petroleum corporation earnings: 1/29 06:30 am Check Earnings Report
US:NYSE Investor Relations: ir.marathonpetroleum.com
Company Research Source: PR Newswire
FINDLAY, Ohio, Nov. 4, 2025 /PRNewswire/ -- Marathon Petroleum Corp. (NYSE: MPC) today announced that the board of directors of MPC has elected Maryann T. Mannen, president and chief executive officer and member of the board of directors, as chairman of the board, effective Jan. 1, 2026. Mannen will assume the role of chairman of the board in addition to her current responsibilities. Mannen will succeed Michael J. Hennigan, who has elected to retire as executive chairman and as a member of the board of directors, also effective Jan. 1, 2026. John Surma will continue to serve as independent lead director of the board. "We congratulate Maryann as our new chairman of the board," said Mr. Surma. "We are confident in Maryann's leadership and enthusiastic about our company's direction. We thank Mike for his exemplary service during a period of significant value creation." "Mike's continued leadership and remarkable achievements Show less Read more
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