MARATHON PETROLEUM CORP (MPC) Stock Institutional Trading Activity
MARATHON PETROLEUM CORP (MPC) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q1 2026), investors with some of the largest reported share count changes include Sequoia Financial Advisors, Matrix Advisors Value Fund, Cullen Value Fund, Renaissance Technologies LLC, and Mairs & Power Growth Fund. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.
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- MARATHON PETROLEUM CORP (MPC) stock institutional ownership
- MARATHON PETROLEUM CORP (MPC) stock insider trading activity
- Stock rankings
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q4 2016 | Renaissance Technologies LLC | Sell | -514,300 | 323,200 | $16,273 |
| Q4 2016 | First Eagle U.S. Value | Buy | 577,902 | 577,902 | $29,097 |
| Q4 2015 | Renaissance Technologies LLC | Buy | 405,700 | 837,500 | $43,416 |
| Q3 2015 | Renaissance Technologies LLC | Sell | -141,317 | 431,800 | $20,005 |
| Q1 2015 | Renaissance Technologies LLC | Buy | 479,917 | 573,117 | $58,681 |
| Q3 2014 | Renaissance Technologies LLC | Sell | -1,023,500 | 93,200 | $7,891 |
| Q4 2013 | Third Point | Sell | -250,000 | 1,000,000 | $91,730 |
| Q3 2013 | Renaissance Technologies LLC | Sell | -826,600 | 1,116,700 | $71,826 |
| Q2 2013 | Third Point | Buy | 1,250,000 | 1,250,000 | $88,825 |
| Q2 2013 | Viking Global Investors | Buy | 1,595,307 | 1,595,307 | $113,362 |
| Q2 2013 | Renaissance Technologies LLC | Buy | 1,943,300 | 1,943,300 | $138,091 |
Frequently asked questions about MPC activity
Which institutional owners are buying MPC?
Institutional owners buying MPC include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in MPC activity?
"Buy" means an investor increased their reported position in MPC compared to the prior reporting period. This reflects growing exposure to MARATHON PETROLEUM CORP (MPC) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in MPC increasing?
Institutional interest in MPC can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.