Marathon Petroleum Corp
MPC- Exchange
- NYSE
- Industry
- Petroleum Refining
- SEC CIK
- 0001510295
In the last 90 days, Marathon Petroleum Corp insiders filed 0 open-market purchases and 5 sales; 1,954 institutions reported holding it in 13F filings for Q2 2026, worth $56.0B in total; Harris Associates (Oakmark) is the only superinvestor holding it.
Superinvestors holding MPC, Q2 2026
1 superinvestor reports holding Marathon Petroleum Corp on Form 13F, worth $58.6M in total. Weight is Marathon Petroleum Corp's share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| Harris Associates (Oakmark)Bill Nygren | 0.1% | 229,011 | $58.6M | Reduced−91.8% |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of MPC each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
1 superinvestor holding at quarter end
- Reduced
- Harris Associates (Oakmark) (−91.8%)
Q1 2026
1 superinvestor holding at quarter end
- Reduced
- Harris Associates (Oakmark) (−30.4%)
Q4 2025
1 superinvestor holding at quarter end
- Added
- Harris Associates (Oakmark) (+0.7%)
Q3 2025
1 superinvestor holding at quarter end
- Reduced
- Harris Associates (Oakmark) (−3.0%)
Q2 2025
1 superinvestor holding at quarter end
- Added
- Harris Associates (Oakmark) (+93.2%)
Q1 2025
1 superinvestor holding at quarter end
Q3 2024
0 superinvestors holding at quarter end
- Sold out
- Elliott Investment Management
Q2 2024
1 superinvestor holding at quarter end
- Sold out
- Maverick Capital
Q1 2024
2 superinvestors holding at quarter end
- Added
- Maverick Capital (+7.1%)
- Reduced
- Elliott Investment Management (−33.4%)
Q4 2023
2 superinvestors holding at quarter end
Q2 2023
1 superinvestor holding at quarter end
- Sold out
- Maverick Capital
Q1 2023
2 superinvestors holding at quarter end
- Added
- Maverick Capital (+49.0%)
Q4 2022
2 superinvestors holding at quarter end
Q1 2022
1 superinvestor holding at quarter end
- Added
- Elliott Investment Management (+4.7%)
Q3 2021
1 superinvestor holding at quarter end
- Sold out
- Maverick Capital
Q2 2021
2 superinvestors holding at quarter end