Maryann T. Mannen - Insider Trading & Ownership

Location
C/O Marathon Petroleum Corporation, 539 South Main St, Findlay, OH
Summary
The estimated net worth of Maryann T. Mannen is at least $29.7M dollars as of November 10, 2025. Maryann T. Mannen is the President & CEO, Director of Marathon Petroleum Corp and owns shares of Marathon Petroleum Corp (MPC) stock worth about $16.7M. Maryann T. Mannen is the President & CEO, Director of MPLX LP and owns shares of MPLX LP (MPLX) stock worth about $10.2M. Maryann T. Mannen is the Director of Owens Corning and owns shares of Owens Corning (OC) stock worth about $2.78M.
Signature
/s/ Katherine M. Serevitch, Attorney-in-Fact
All Insider Reports
All Insider Reports

Ownership of Maryann T. Mannen

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
MPC Marathon Petroleum Corp President & CEO, Director $16.7M Aug 1, 2025
MPLX, MPLXP MPLX LP President & CEO, Director $10.2M Mar 1, 2025
OC Owens Corning Director $2.78M Nov 6, 2025

Insider Transactions Reported by Maryann T. Mannen:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.