Marathon Petroleum
MPC
1,573 hedge funds and large institutions have $38.5B invested in Marathon Petroleum in 2025 Q2 according to their latest regulatory filings, with 152 funds opening new positions, 530 increasing their positions, 591 reducing their positions, and 123 closing their positions.
78% more funds holding in top 10
Funds holding in top 10: 9 → 16 (+7)
58% more call options, than puts
Call options by funds: $690M | Put options by funds: $437M
24% more first-time investments, than exits
New positions opened: 152 | Existing positions closed: 123
1.11% more ownership
Funds ownership: 74.35% → 75.47% (+1.1%)
3% more capital inflows, than outflows
Capital inflows: $2.53B | Capital outflows: $2.46B
1% more funds holding
Funds holding: 1,562 → 1,573 (+11)
10% less repeat investments, than reductions
Existing positions increased: 530 | Existing positions reduced: 591
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Vanguard Group
Malvern,
Pennsylvania
|
+$588M |
| 2 |
Harris Associates
Chicago,
Illinois
|
+$299M |
| 3 |
Geode Capital Management
Boston,
Massachusetts
|
+$155M |
| 4 |
JP Morgan Chase
New York
|
+$116M |
| 5 |
Boston Partners
Boston,
Massachusetts
|
+$107M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Pacer Advisors
Malvern,
Pennsylvania
|
-$224M |
| 2 |
Amundi
Paris,
France
|
-$185M |
| 3 |
State Street
Boston,
Massachusetts
|
-$154M |
| 4 |
BlackRock
New York
|
-$135M |
| 5 |
Invesco
Atlanta,
Georgia
|
-$117M |
MPC Hedge Fund Activity: Q2 2025 in Review
1,573 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Marathon Petroleum (MPC) for Q2 2025, worth a combined $38.5B — up 14% from $33.7B a quarter earlier.
Buyers outnumbered sellers: 152 funds opened new MPC positions and 123 closed out — a net gain of 29 holders — while 530 added to existing stakes and 591 trimmed.
The largest buyer was Vanguard Group, adding an estimated $588M. The largest seller was Pacer Advisors, cutting an estimated $224M.
- 1,573 institutional investors held Marathon Petroleum (MPC) as of Q2 2025, up from 1,562 in Q1 2025.
- Funds reported $38.5B of Marathon Petroleum stock for Q2 2025, up 14% quarter-over-quarter.
- 152 funds opened new Marathon Petroleum positions in Q2 2025 and 123 closed out, a net change of +29 holders.
- The largest Marathon Petroleum buyer in Q2 2025 was Vanguard Group, an estimated $588M added.
- The largest Marathon Petroleum seller in Q2 2025 was Pacer Advisors, an estimated $224M sold.
Based on aggregated 13F filings for Q2 2025.