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MPLX
MPLX

576 hedge funds and large institutions have $10.5B invested in MPLX in 2025 Q3 according to their latest regulatory filings, with 54 funds opening new positions, 221 increasing their positions, 123 reducing their positions, and 45 closing their positions.

New
Increased
Maintained
Reduced
Closed

80% more repeat investments, than reductions

Existing positions increased: 221 | Existing positions reduced: 123

48% more call options, than puts

Call options by funds: $143M | Put options by funds: $96.3M

20% more first-time investments, than exits

New positions opened: 54 | Existing positions closed: 45

0% more funds holding

Funds holding: 575 → 576 (+1)

0.65% less ownership

Funds ownership: 21.27% → 20.62% (-0.65%)

6% less capital invested

Capital invested by funds: $11.2B → $10.5B (-$672M)

7% less funds holding in top 10

Funds holding in top 10: 30 → 28 (-2)

Holders
576
Holders Change
+1
Holders Change %
+0.17%
% of All Funds
7.56%
Holding in Top 10
28
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-6.67%
% of All Funds
0.37%
New
54
Increased
221
Reduced
123
Closed
45
Calls
$143M
Puts
$96.3M
Net Calls
+$46.4M
Net Calls Change
-$46.2M

Top Buyers

1
N
Natixis
France
+$28.9M
2
TCA
Tortoise Capital Advisors
Kansas
+$16.7M
3
AA
ALPS Advisors
Colorado
+$16.5M
4
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$15.4M
5
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings
Hong Kong
+$15.2M

Top Sellers

1
Blackstone Inc
Blackstone Inc
New York
-$148M
2
UBS Group
UBS Group
Switzerland
-$78.3M
3
Victory Capital Management
Victory Capital Management
Texas
-$60.9M
4
Goldman Sachs
Goldman Sachs
New York
-$53.2M
5
BC
Brookfield Corp
Ontario, Canada
-$47.3M
Name Holding Trade Value Shares
Change 		Change in
Stake
PTC
501
Private Trust Company
Ohio
$99.9K – – –
ACM
502
Anfield Capital Management
California
$90K -$91.3K -1,800 -50%
CSPIA
503
Cary Street Partners Investment Advisory
Virginia
$89.9K +$91.3K +1,800 New
GWP
504
Gen-Wealth Partners
Michigan
$87.7K +$82.4K +1,625 +1,250%
Russell Investments Group
505
Russell Investments Group
United Kingdom
$81.1K – – –
JWA
506
JFS Wealth Advisors
Pennsylvania
$80.9K +$82.2K +1,620 New
HPC
507
HM Payson & Co
Maine
$78.1K – – –
Fifth Third Bancorp
508
Fifth Third Bancorp
Ohio
$74.9K -$84.5K -1,666 -53%
CNBTD
509
Citizens National Bank Trust Department
Mississippi
$73.2K – – –
CTC
510
Central Trust Company
Missouri
$72.8K – – –
MA
511
Montag & Associates
Georgia
$71K – – –
AT
512
Avalon Trust
New Mexico
$69.3K – – –
ME
513
McIlrath & Eck
Washington
$68.8K +$69.8K +1,377 New
FHC
514
First Horizon Corporation
Tennessee
$65.7K +$66.7K +1,315 New
CFD
515
Creative Financial Designs
Indiana
$62.9K – – –
APW
516
Aventura Private Wealth
Florida
$62.1K – – –
TC
517
Trust Company
Kansas
$61.7K – – –
HWA
518
Heritage Wealth Advisors
Virginia
$60.3K +$355 +7 +0.6%
GWM
519
Geneos Wealth Management
Colorado
$56.7K – – –
FFO
520
Fortitude Family Office
Arizona
$50.4K – – –
APW
521
Atlantic Private Wealth
North Carolina
$50K – – –
HIA
522
Harbor Investment Advisory
Maryland
$50K – – –
MA
523
MCF Advisors
Kentucky
$50K – – –
WOSD
524
WFA of San Diego
California
$50K – – –
QC
525
Quent Capital
New York
$42.3K +$43K +847 New
19 20
21
22 23

MPLX Hedge Fund Activity: Q3 2025 in Review

576 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in MPLX (MPLX) for Q3 2025, worth a combined $10.5B — down 6% from $11.2B a quarter earlier.

Buyers outnumbered sellers: 54 funds opened new MPLX positions and 45 closed out — a net gain of 9 holders — while 221 added to existing stakes and 123 trimmed.

The largest buyer was Natixis, adding an estimated $28.9M. The largest seller was Blackstone Inc, cutting an estimated $148M.

  • 576 institutional investors held MPLX (MPLX) as of Q3 2025, up from 575 in Q2 2025.
  • Funds reported $10.5B of MPLX stock for Q3 2025, down 6% quarter-over-quarter.
  • 54 funds opened new MPLX positions in Q3 2025 and 45 closed out, a net change of +9 holders.
  • The largest MPLX buyer in Q3 2025 was Natixis, an estimated $28.9M added.
  • The largest MPLX seller in Q3 2025 was Blackstone Inc, an estimated $148M sold.

Based on aggregated 13F filings for Q3 2025.