Marathon Petroleum
1,657 hedge funds and large institutions have $42.4B invested in Marathon Petroleum in 2025 Q3 according to their latest regulatory filings, with 194 funds opening new positions, 496 increasing their positions, 621 reducing their positions, and 77 closing their positions.
152% more first-time investments, than exits
New positions opened: 194 | Existing positions closed: 77
26% more call options, than puts
Call options by funds: $750M | Put options by funds: $594M
9% more capital invested
Capital invested by funds: $39B → $42.4B (+$3.36B)
6% more funds holding in top 10
Funds holding in top 10: 16 → 17 (+1)
6% more funds holding
Funds holding: 1,567 → 1,657 (+90)
3.26% less ownership
Funds ownership: 75.61% → 72.35% (-3.3%)
20% less repeat investments, than reductions
Existing positions increased: 496 | Existing positions reduced: 621
Top Buyers
| 1 |
Millennium Management
New York
|
+$236M |
| 2 |
Two Sigma Investments
New York
|
+$136M |
| 3 |
Fidelity Investments
Boston,
Massachusetts
|
+$129M |
| 4 |
Two Sigma Advisers
New York
|
+$91M |
| 5 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$82.2M |
Top Sellers
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$406M |
| 2 |
Pacer Advisors
Malvern,
Pennsylvania
|
-$347M |
| 3 |
BlackRock
New York
|
-$176M |
| 4 |
Goldman Sachs
New York
|
-$147M |
| 5 |
UBS AM
Chicago,
Illinois
|
-$121M |
MPC Hedge Fund Activity: Q3 2025 in Review
1,657 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Marathon Petroleum (MPC) for Q3 2025, worth a combined $42.4B — up 8.6% from $39B a quarter earlier.
Buyers outnumbered sellers: 194 funds opened new MPC positions and 77 closed out — a net gain of 117 holders — while 496 added to existing stakes and 621 trimmed.
The largest buyer was Millennium Management, adding an estimated $236M. The largest seller was Wellington Management Group, cutting an estimated $406M.
- 1,657 institutional investors held Marathon Petroleum (MPC) as of Q3 2025, up from 1,567 in Q2 2025.
- Funds reported $42.4B of Marathon Petroleum stock for Q3 2025, up 8.6% quarter-over-quarter.
- 194 funds opened new Marathon Petroleum positions in Q3 2025 and 77 closed out, a net change of +117 holders.
- The largest Marathon Petroleum buyer in Q3 2025 was Millennium Management, an estimated $236M added.
- The largest Marathon Petroleum seller in Q3 2025 was Wellington Management Group, an estimated $406M sold.
Based on aggregated 13F filings for Q3 2025.