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.
13F holders, Q2 2025
Institutional positions in Marathon Petroleum Corp as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 1,571
- +26 vs. Q1 2025
- Shares held
- 232.4M
- −3.76M (−1.6%) vs. Q1 2025
- Total value
- $38.5B
- +$4.88B (+14.5%) vs. Q1 2025
- New holders
- 152
- 531 more added
- Sold out
- 126
- 589 more reduced
18 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MPC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,954 | $56.0B |
| Q1 2026 | 1,897 | $53.9B |
| Q4 2025 | 1,679 | $36.4B |
| Q3 2025 | 1,662 | $42.4B |
| Q2 2025 | 1,572 | $38.5B |
| Q1 2025 | 1,564 | $33.7B |
| Q4 2024 | 1,562 | $32.4B |
| Q3 2024 | 1,583 | $38.9B |
| Q2 2024 | 1,653 | $43.4B |
| Q1 2024 | 1,692 | $52.7B |
| Q4 2023 | 1,554 | $41.1B |
| Q3 2023 | 1,476 | $43.8B |
| Q2 2023 | 1,356 | $35.4B |
| Q1 2023 | 1,442 | $44.3B |
| Q4 2022 | 1,391 | $40.9B |
| Q3 2022 | 1,293 | $36.1B |
| Q2 2022 | 1,234 | $32.3B |
| Q1 2022 | 1,185 | $36.1B |
| Q4 2021 | 1,098 | $28.9B |
| Q3 2021 | 1,008 | $29.6B |
| Q2 2021 | 1,004 | $29.5B |
| Q1 2021 | 976 | $27.0B |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding Marathon Petroleum Corp; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rakuten Investment Management, Inc. | – | – | – | – | Not filed |
| Mizuho Securities USA LLC | – | – | – | – | Not filed |
| Orion Portfolio Solutions, LLC | – | – | – | – | Not filed |
| Selway Asset Management | – | – | – | – | Not filed |
| CAPROCK Group, Inc. | – | – | – | – | Not filed |
| Schechter Investment Advisors, LLC | – | – | – | – | Not filed |
| Sheaff Brock Investment Advisors, LLC | – | – | – | – | Not filed |
| Keeley-Teton Advisors, LLC | – | – | – | – | Not filed |
| Marcum Wealth, LLC | – | – | – | – | Not filed |
| Lindbrook Capital, LLC | – | – | – | – | Not filed |
| Callan Capital, LLC | – | – | – | – | Not filed |
| Transform Wealth, LLC | – | – | – | – | Not filed |
| Sandy Spring Bank | – | – | – | – | Not filed |
| Davis Capital Management | – | – | – | – | Not filed |
| Sofos Investments, Inc. | – | – | – | – | Not filed |