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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
WI
1926
Wahed Invest
New York
– -$1.3M -8,006 Closed
SC
1927
SummitTX Capital
Texas
– -$1.19M -7,342 Closed
OTL
1928
Oak Thistle LLC
New York
– -$1.18M -7,227 Closed
ET
1929
Entropy Technologies
New York
– -$995K -6,118 Closed
OAM
1930
Oxford Asset Management
United Kingdom
– -$924K -5,680 Closed
VI
1931
Versor Investments
New York
– -$851K -5,230 Closed
HT
1932
Headlands Technologies
Illinois
– -$850K -5,226 Closed
Walleye Trading
1933
Walleye Trading
New York
– -$1.05M -5,191 Closed
PCM
1934
Prelude Capital Management
New York
– -$747K -4,592 Closed
DAS
1935
Diversify Advisory Services
Utah
– -$792K -4,512 Closed
CP
1936
CenterBook Partners
Connecticut
– -$721K -4,433 Closed
FRM
1937
Fox Run Management
Connecticut
– -$721K -4,433 Closed
GCP
1938
GSA Capital Partners
United Kingdom
– -$692K -4,252 Closed
LWP
1939
LeClair Wealth Partners
Ohio
– -$628K -3,863 Closed
TWA
1940
TCI Wealth Advisors
Arizona
– -$597K -3,671 Closed
IA
1941
IFG Advisory
Georgia
– -$558K -3,429 Closed
CCG
1942
Ceeto Capital Group
Florida
– -$537K -3,300 Closed
HWAM
1943
Hennion & Walsh Asset Management
New Jersey
– -$533K -3,280 Closed
RS
1944
R Squared
Hong Kong
– -$480K -2,950 Closed
WFI
1945
West Family Investments
California
– -$421K -2,590 Closed
WPA
1946
Wealth Preservation Advisors
Tennessee
– -$395K -2,430 Closed
NC
1947
nVerses Capital
Florida
– -$388K -2,385 Closed
CG
1948
Cynosure Group
Utah
– -$387K -2,377 Closed
SMA
1949
Sage Mountain Advisors
Georgia
– -$376K -2,311 Closed
SCP
1950
Sivia Capital Partners
California
– -$362K -2,227 Closed
76 77
78
79 80

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.