Institutional shares held 230 Million
3.5M calls
2.59M puts
Total value of holdings $46B
$701M calls
$518M puts
Market Cap $99.7B
498,624,000 Shares Out.
Institutional ownership 46.13%
# of Institutions 1,911


Latest Institutional Activity in MPC

Top Purchases

Q4 2025
Sg Americas Securities, LLC Shares Held: 320K ($64.1M)
Q4 2025
Assenagon Asset Management S.A. Shares Held: 320K ($64.1M)
Q4 2025
Clear Trail Advisors, LLC Shares Held: 50.1K ($10M)
Q4 2025
Sagespring Wealth Partners, LLC Shares Held: 31.2K ($6.25M)
Q4 2025
Procyon Advisors, LLC Shares Held: 7.42K ($1.48M)

Top Sells

Q4 2025
North Crest Asset Manangement, LLC Shares Held: 7K ($1.4M)
Q4 2025
Coastline Trust CO Shares Held: 4.2K ($839K)
Q4 2025
Board Of The Pension Protection Fund Shares Held: 200 ($40K)
Q4 2025
Goal Vest Advisory LLC Shares Held: 305 ($61K)
Q4 2025
Dynamic Advisor Solutions LLC Shares Held: 9.8K ($1.96M)

About MPC

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.


Insider Transactions at MPC

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
73.6K Shares
From 25 Insiders
Grant, award, or other acquisition 59.8K shares
Open market or private purchase 3K shares
Exercise of conversion of derivative security 10.9K shares
Sell / Disposition
39.1K Shares
From 12 Insiders
Open market or private sale 18.3K shares
Payment of exercise price or tax liability 20.8K shares

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