We are live on ! Find out more
MPC icon

Marathon Petroleum
MPC

1,892 hedge funds and large institutions have $53.9B invested in Marathon Petroleum in 2026 Q1 according to their latest regulatory filings, with 350 funds opening new positions, 569 increasing their positions, 677 reducing their positions, and 111 closing their positions.

New
Increased
Maintained
Reduced
Closed

215% more first-time investments, than exits

New positions opened: 350 | Existing positions closed: 111

86% more funds holding in top 10

Funds holding in top 10: 14 → 26 (+12)

48% more capital invested

Capital invested by funds: $36.4B → $53.9B (+$17.5B)

37% more call options, than puts

Call options by funds: $861M | Put options by funds: $631M

13% more funds holding

Funds holding: 1,678 → 1,892 (+214)

0.63% more ownership

Funds ownership: 74.41% → 75.04% (+0.63%)

16% less repeat investments, than reductions

Existing positions increased: 569 | Existing positions reduced: 677

Holders
1,892
Holders Change
+214
Holders Change %
+12.75%
% of All Funds
23.15%
Holding in Top 10
26
Holding in Top 10 Change
+12
Holding in Top 10 Change %
+85.71%
% of All Funds
0.32%
New
350
Increased
569
Reduced
677
Closed
111
Calls
$861M
Puts
$631M
Net Calls
+$230M
Net Calls Change
+$205M

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$398M
2
Fidelity Investments
Fidelity Investments
Massachusetts
+$291M
3
State Street
State Street
Massachusetts
+$220M
4
Two Sigma Investments
Two Sigma Investments
New York
+$129M
5
Goldman Sachs
Goldman Sachs
New York
+$83.8M

Top Sellers

Rank Fund Capital Flow
1
Wellington Management Group
Wellington Management Group
Massachusetts
-$316M
2
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
-$291M
3
Harris Associates
Harris Associates
Illinois
-$248M
4
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$157M
5
Citadel Advisors
Citadel Advisors
Florida
-$143M
Name Holding Trade Value Shares
Change 		Change in
Stake
Vanguard Asset Management
51
Vanguard Asset Management
$139M +$115M +568,369 New
Mariner
52
Mariner
Kansas
$135M +$298K +1,477 +0.3%
PAM
53
Panagora Asset Management
Massachusetts
$135M +$82.9M +410,318 +290%
Citigroup
54
Citigroup
New York
$132M +$20.4M +101,101 +23%
California Public Employees Retirement System
55
California Public Employees Retirement System
California
$131M -$9.85M -48,765 -8%
Acadian Asset Management
56
Acadian Asset Management
Massachusetts
$130M +$62.6M +310,073 +141%
Bank of Montreal
57
Bank of Montreal
Ontario, Canada
$129M +$2.62M +12,960 +3%
Los Angeles Capital Management
58
Los Angeles Capital Management
California
$122M +$57.9M +286,949 +134%
A
59
AustralianSuper
Australia
$120M +$3.25M +16,099 +3%
HSBC Holdings
60
HSBC Holdings
United Kingdom
$119M -$11.7M -58,132 -11%
Thrivent Financial for Lutherans
61
Thrivent Financial for Lutherans
Minnesota
$107M +$1.1M +5,427 +1%
AQR Capital Management
62
AQR Capital Management
Connecticut
$106M +$4.68M +23,166 +6%
Millennium Management
63
Millennium Management
New York
$105M +$58.3M +288,583 +201%
LPL Financial
64
LPL Financial
California
$104M +$2.68M +13,270 +3%
Victory Capital Management
65
Victory Capital Management
Texas
$103M -$128M -633,211 -60%
Holocene Advisors
66
Holocene Advisors
New York
$101M +$83.6M +414,134 New
Arrowstreet Capital
67
Arrowstreet Capital
Massachusetts
$100M +$76.1M +376,721 +1,117%
ECP
68
Empyrean Capital Partners
California
$97.2M -$7.75M -38,400 -9%
Franklin Resources
69
Franklin Resources
California
$97.2M +$35.5M +175,954 +79%
Natixis Advisors
70
Natixis Advisors
Massachusetts
$96.3M +$31.1M +153,805 +64%
Federated Hermes
71
Federated Hermes
Pennsylvania
$94.6M +$35.9M +177,983 +85%
Marshall Wace
72
Marshall Wace
United Kingdom
$93.6M +$30.3M +149,936 +64%
Squarepoint
73
Squarepoint
New York
$90.2M +$43.5M +215,324 +140%
Envestnet Asset Management
74
Envestnet Asset Management
Illinois
$89.3M +$17M +84,355 +30%
Robeco Institutional Asset Management
75
Robeco Institutional Asset Management
Netherlands
$86.1M +$23.8M +118,047 +50%
1 2
3
4 5

MPC Hedge Fund Activity: Q1 2026 in Review

1,892 of the 8,172 institutional investors tracked by Wall St. Rank reported a position in Marathon Petroleum (MPC) for Q1 2026, worth a combined $53.9B — up 48% from $36.4B a quarter earlier.

Buyers outnumbered sellers: 350 funds opened new MPC positions and 111 closed out — a net gain of 239 holders — while 569 added to existing stakes and 677 trimmed.

The largest buyer was BlackRock, adding an estimated $398M. The largest seller was Wellington Management Group, cutting an estimated $316M.

  • 1,892 institutional investors held Marathon Petroleum (MPC) as of Q1 2026, up from 1,678 in Q4 2025.
  • Funds reported $53.9B of Marathon Petroleum stock for Q1 2026, up 48% quarter-over-quarter.
  • 350 funds opened new Marathon Petroleum positions in Q1 2026 and 111 closed out, a net change of +239 holders.
  • The largest Marathon Petroleum buyer in Q1 2026 was BlackRock, an estimated $398M added.
  • The largest Marathon Petroleum seller in Q1 2026 was Wellington Management Group, an estimated $316M sold.

Based on aggregated 13F filings for Q1 2026.