Ex VP, Refining

Chief Commercial Officer

Marathon Petroleum is a leading integrated downstream and midstream energy company that operates 13 refineries in the Gulf Coast, Mid-Continent, and West Coast regions of the United States with an aggregate crude oil refining capacity of 3.0 million barrels per day. The company is one of the largest producers of renewable diesel in the US; its Dickinson, North Dakota facility has the capacity to produce 184 million gallons per year, and its Martinez, California, joint venture facility (a 50/50 partnership with Neste) reached its full capacity of 730 million gallons per year in late 2024. Marathon also owns the general partner and approximately 64% of MPLX LP, a large-cap master limited partnership that owns and operates midstream energy infrastructure and logistics assets.

Institution	Shares	Value	Change
Robeco Institutional Asset Management B.V	365,555	$93M	INCREASED
New York State Teachers Retirement System	244,918	$63M	DECREASED
HM Payson &	227,433	$58M	DECREASED
Ars Investment Partners	220,952	$56M	INCREASED
Greatmark Investment Partners	161,649	$41M	DECREASED

Insider	Type	Shares	Value	Date
Michael A Henschen II (Ex VP, Refining)	EXERCISE	4,964	$248K	2026-06-04
Michael A Henschen II (Ex VP, Refining)	SELL	4,964	$1M	2026-06-04
Michael A Henschen II (Ex VP, Refining)	SELL	1,372	$369K	2026-06-04
Ricky D. Hessling (Chief Commercial Officer)	SELL	1,000	$250K	2026-05-13

MARATHON PETROLEUM CORPORATION (MPC) Ownership & Trading Activity

Top Institutional Holders

Recent Insider Trades

Recent Congressional Trades