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567 hedge funds and large institutions have $11.6B invested in MPLX in 2025 Q1 according to their latest regulatory filings, with 75 funds opening new positions, 200 increasing their positions, 132 reducing their positions, and 33 closing their positions.

New
Increased
Maintained
Reduced
Closed

265% more call options, than puts

Call options by funds: $280M | Put options by funds: $76.8M

127% more first-time investments, than exits

New positions opened: 75 | Existing positions closed: 33

52% more repeat investments, than reductions

Existing positions increased: 200 | Existing positions reduced: 132

11% more capital invested

Capital invested by funds: $10.4B → $11.6B (+$1.2B)

7% more funds holding in top 10

Funds holding in top 10: 2931 (+2)

6% more funds holding

Funds holding: 534567 (+33)

0.09% less ownership

Funds ownership: 21.41%21.32% (-0.09%)

Holders
567
Holders Change
+33
Holders Change %
+6.18%
% of All Funds
7.6%
Holding in Top 10
31
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+6.9%
% of All Funds
0.42%
New
75
Increased
200
Reduced
132
Closed
33
Calls
$280M
Puts
$76.8M
Net Calls
+$203M
Net Calls Change
+$32.7M
Name Holding Trade Value Shares
Change
Change in
Stake
AC
26
AlphaCore Capital
California
$84M +$22.6K +431 +0%
Stifel Financial
27
Stifel Financial
Missouri
$76.6M +$966K +18,444 +1%
Amundi
28
Amundi
France
$73.6M
Allianz Asset Management
29
Allianz Asset Management
Germany
$68.2M -$15.4M -293,000 -19%
EIP
30
Epoch Investment Partners
New York
$64.5M -$9.13M -174,346 -13%
Barclays
31
Barclays
United Kingdom
$64.1M -$8.56M -163,379 -12%
BNP Paribas Financial Markets
32
BNP Paribas Financial Markets
France
$64M -$5.67M -108,312 -8%
Mariner
33
Mariner
Kansas
$57.1M +$653K +12,473 +1%
P3I
34
Progeny 3 Inc
Washington
$56.5M +$980K +18,700 +2%
Neuberger Berman Group
35
Neuberger Berman Group
New York
$53.3M +$18.5M +352,782 +55%
Wells Fargo
36
Wells Fargo
California
$49.7M +$4.24M +80,902 +10%
Deutsche Bank
37
Deutsche Bank
Germany
$47.1M -$1.69M -32,260 -4%
Raymond James Financial
38
Raymond James Financial
Florida
$47M +$146K +2,781 +0.3%
BIC
39
Beach Investment Counsel
Pennsylvania
$45.4M -$1.07M -20,446 -2%
Royal Bank of Canada
40
Royal Bank of Canada
Ontario, Canada
$41.8M -$5.35M -102,137 -12%
Jennison Associates
41
Jennison Associates
New York
$41.3M -$598K -11,417 -1%
LIM
42
Longfellow Investment Management
Massachusetts
$41M
Cohen & Steers
43
Cohen & Steers
New York
$35.2M -$29.9K -571 -0.1%
HighTower Advisors
44
HighTower Advisors
Illinois
$32.9M +$1.11M +21,225 +4%
AL
45
Appaloosa LP
New Jersey
$31M
Citigroup
46
Citigroup
New York
$29M +$4.2M +80,245 +17%
AP
47
Americana Partners
Texas
$27.9M +$2.21M +42,235 +9%
RA
48
RR Advisors
Texas
$27.4M -$943K -18,000 -3%
Citadel Advisors
49
Citadel Advisors
Florida
$26.9M -$8.52M -162,589 -24%
USCWA
50
U.S. Capital Wealth Advisors
Texas
$26.4M +$471K +8,998 +2%

MPLX Hedge Fund Activity: Q1 2025 in Review

567 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in MPLX (MPLX) for Q1 2025, worth a combined $11.6B — up 11% from $10.4B a quarter earlier.

Buyers outnumbered sellers: 75 funds opened new MPLX positions and 33 closed out — a net gain of 42 holders — while 200 added to existing stakes and 132 trimmed.

The largest buyer was Kayne Anderson Capital Advisors, adding an estimated $113M. The largest seller was Blackstone Inc, cutting an estimated $91.4M.

  • 567 institutional investors held MPLX (MPLX) as of Q1 2025, up from 534 in Q4 2024.
  • Funds reported $11.6B of MPLX stock for Q1 2025, up 11% quarter-over-quarter.
  • 75 funds opened new MPLX positions in Q1 2025 and 33 closed out, a net change of +42 holders.
  • The largest MPLX buyer in Q1 2025 was Kayne Anderson Capital Advisors, an estimated $113M added.
  • The largest MPLX seller in Q1 2025 was Blackstone Inc, an estimated $91.4M sold.

Based on aggregated 13F filings for Q1 2025.