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  • Insider Ownership

Insider Trading & Ownership of Maryann T. Mannen

Location
Findlay, OH
Summary
The estimated net worth of Maryann T. Mannen is at least $36,198,560 dollars as of 03 Mar 2026. Maryann T. Mannen is the Chairman, President & CEO, Director of Marathon Petroleum Corp and owns shares of Marathon Petroleum Corp (MPC) stock worth about $23.07M. Maryann T. Mannen is the Chairman, President & CEO, Director of MPLX LP and owns shares of MPLX LP (MPLX) stock worth about $9.8M. Maryann T. Mannen is the Director of Owens Corning and owns shares of Owens Corning (OC) stock worth about $3.33M.
Signature
/s/ Molly R. Benson, Attorney-in-Fact for Maryann T. Mannen
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Ownership of Maryann T. Mannen

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
MPC Marathon Petroleum Corp Chairman, President & CEO, Director $23,074,036 01 Mar 2026
MPLX, MPLXP MPLX LP Chairman, President & CEO, Director $9,798,481 01 Mar 2026
OC Owens Corning Director $3,326,043 27 Feb 2026

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.