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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
DWM
551
Darwin Wealth Management
Florida
$12K – – –
FNWA
552
Financial Network Wealth Advisors
Utah
$10.4K +$51 +1 +0.5%
CTB
553
Country Trust Bank
Illinois
$9.99K -$5.07K -100 -33%
MSFP
554
Mark Sheptoff Financial Planning
Connecticut
$9.99K – – –
HWA
555
HHM Wealth Advisors
Tennessee
$9.99K +$10.1K +200 New
AUB
556
Atlantic Union Bankshares
Virginia
$9.69K +$9.84K +194 New
VFM
557
Vision Financial Markets
Connecticut
$6.36K +$152 +3 +2%
BTI
558
Blue Trust Inc
Georgia
$6.24K -$24.6K -484 -79%
CCM
559
Cloud Capital Management
Washington
$6K +$6.85K +135 New
NWM
560
Nova Wealth Management
Florida
$5.64K – – –
CAM
561
Costello Asset Management
Pennsylvania
$5.2K – – –
GBT
562
Grove Bank & Trust
Florida
$5K – – –
OIA
563
Optimum Investment Advisors
Illinois
$5K – – –
JWM
564
JPL Wealth Management
Colorado
$5K +$5.07K +100 New
MWPCG
565
Measured Wealth Private Client Group
New Hampshire
$5K +$5.07K +100 New
SIS
566
Strategic Investment Solutions
Illinois
$5K +$5.07K +100 New
KA
567
Kozak & Associates
Colorado
$4.95K +$203 +4 +4%
CFFP
568
Center for Financial Planning
Michigan
$4.25K – – –
PCM
569
Penserra Capital Management
California
$4K – – –
WPA
570
Wealth Preservation Advisors
Tennessee
$2K – – –
PMFA
571
Plante Moran Financial Advisors
Michigan
$1.25K – – –
TPCW
572
TD Private Client Wealth
New York
$1.15K -$3.4K -67 -74%
IRC
573
Investors Research Corp
Georgia
$999 – – –
AWM
574
Abound Wealth Management
Tennessee
$817 – – –
DFA
575
DHJJ Financial Advisors
Illinois
$500 +$507 +10 New
21 22
23
24 25

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.