Marathon Petroleum Corporation, together with its subsidiaries, operates as an integrated downstream energy company primarily in the United States. It operates in two segments, Refining & Marketing, and Midstream. The Refining & Marketing segment refines crude oil and other feedstocks at its refineries in the Gulf Coast, Mid-Continent, and West Coast regions of the United States; and purchases refined products and ethanol for resale. Its refined products include transportation fuels, such as reformulated gasolines and blend-grade gasolines; heavy fuel oil; and asphalt. This segment also manufactures aromatics, propane, propylene, and sulfur. It sells refined products to wholesale marketing customers in the United States and internationally, buyers on the spot market, and independent entrepreneurs who operate primarily Marathon branded outlets, as well as through long-term fuel supply contracts to direct dealer locations primarily under the ARCO brand. The Midstream segment transports, stores, distributes, and markets crude oil and refined products through refining logistics assets, pipelines, terminals, towboats, and barges; gathers, processes, and transports natural gas; and gathers, transports, fractionates, stores, and markets natural gas liquids. As of December 31, 2021, the company operated 7,159 brand jobber outlets in 37 states, the District of Columbia, and Mexico through independent entrepreneurs. Marathon Petroleum Corporation was founded in 1887 and is headquartered in Findlay, Ohio.

Marathon Petroleum Corporation

Initial Statement of Beneficial Ownership

Insider	Title	Transaction Type	Shares Traded	% of Shares Traded	% Chg. in Shares	End of Filing Shares	Price	Transaction Value	Filing Date	Transaction Date
Molly R. Benson	Chief Legal Officer & Corporate Secretary Show All	Derivative Exercise and Sale (Derivative Exercise and Sale)	-10.9K	-0.003578%	—	28.8K	62.7 - 163.0	-1.1M	19 Aug 2025	15 Aug 2025 - 15 Aug 2025
Molly R. Benson	Chief Legal Officer & Corporate Secretary Show All	Sale	-10.9K	—	—	—	163.0 - 163.0	-1.8M	15 Aug 2025	15 Aug 2025 - 15 Aug 2025
Maryann T. Mannen	President, CEO & Director Show All	Sale to Issuer (Sale to Issuer)	-908.0	-0.000295%	-0.9%	100.5K	166.4 - 166.4	-151.1K	05 Aug 2025	01 Aug 2025 - 01 Aug 2025
Kim K. W. Rucker	Independent Director Show All	Automatic Disposition (Automatic Disposition)	-7.4K	-0.002406%	-100.0%	—	175.0 - 175.0	-1.3M	07 Jul 2025	03 Jul 2025 - 03 Jul 2025
Kim K. W. Rucker	Independent Director Show All	Sale	-7.4K	—	—	—	175.0 - 175.0	-1.3M	03 Jul 2025	03 Jul 2025 - 03 Jul 2025
Michael A. Henschen
Michael A. Henschen
John P. Surma
John Michael Stice
Frank M. Semple
Kim K. W. Rucker
Eileen P. Paterson
Kimberly Nichole Ellison-Taylor
Jonathan Z. Cohen
Jeffrey C. Campbell
B. Evan Bayh
Abdulaziz Bin Fahd Al-Khayyal
Edward G. Galante
Susan Tomasky
Abdulaziz Bin Fahd Al-Khayyal
B. Evan Bayh
Charles E. Bunch
Jeffrey C. Campbell
Jonathan Z. Cohen
Kimberly Nichole Ellison-Taylor
Eileen P. Paterson
Kim K. W. Rucker
Frank M. Semple
John Michael Stice
John P. Surma