We are live on ! Find out more
MPLX icon

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
RFP
526
Root Financial Partners
California
$38.9K +$39.5K +778 New
WAG
527
Wiser Advisor Group
Arizona
$37.7K +$38.3K +755 New
TCOT
528
Trust Company of Toledo
Ohio
$37.5K – – –
CIR
529
Clear Investment Research
Georgia
$35K – – –
TLA
530
Tanglewood Legacy Advisors
Texas
$34.8K – – –
VWA
531
VSM Wealth Advisory
Maryland
$34.3K -$15.4K -303 -31%
CCM
532
Chilton Capital Management
Texas
$32.5K -$9.89K -195 -23%
CT
533
Caldwell Trust
Florida
$31.7K – – –
RF
534
Rossby Financial
Florida
$30.9K – – –
EWA
535
EverSource Wealth Advisors
Alabama
$30.6K -$13.5K -266 -30%
OA
536
Operose Advisors
Wisconsin
$29.2K – – –
FWM
537
FSA Wealth Management
Massachusetts
$26.6K – – –
PWAM
538
Private Wealth Asset Management
Iowa
$25K – – –
TCOV
539
Trust Company of Vermont
Vermont
$25K – – –
SC
540
Solstein Capital
California
$25K +$25.4K +500 New
RAM
541
Ramirez Asset Management
New York
$22.5K – – –
WSC
542
Wellington Shields & Co
New York
$20K +$20.3K +400 New
PP
543
Pacifica Partners
Canada
$19.9K – – –
CWP
544
Concord Wealth Partners
Virginia
$19.4K – – –
AssetMark Inc
545
AssetMark Inc
California
$17K – – –
AIC
546
Archer Investment Corporation
Indiana
$17K +$355 +7 +2%
CMBA
547
C.M. Bidwell & Associates
Hawaii
$16.3K -$16.5K -326 -50%
WWM
548
Wolff Wiese Magana
California
$15.8K +$5.73K +113 +55%
KFI
549
Key Financial Inc
Pennsylvania
$14.9K +$15.2K +300 New
SS
550
Sunbelt Securities
Texas
$14K +$14.2K +280 New
20 21
22
23 24

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.