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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

Rank Fund Capital Flow
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

Rank Fund Capital Flow
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
CG
151
Caprock Group
Idaho
$2.7M +$2.69M +53,046 New
MOACM
152
Mutual of America Capital Management
New York
$2.69M +$278K +5,480 +11%
IMC Chicago
153
IMC Chicago
Illinois
$2.58M +$2.62M +51,611 New
PMG
154
Private Management Group
California
$2.5M – – –
IAA
155
Independent Advisor Alliance
North Carolina
$2.43M +$41.1K +810 +2%
NRCM
156
Northern Right Capital Management
Connecticut
$2.37M -$197K -3,882 -8%
ASN
157
Advisory Services Network
Georgia
$2.34M +$255K +5,037 +12%
CWP
158
CFM Wealth Partners
Texas
$2.33M +$195K +3,853 +9%
SPIA
159
Steward Partners Investment Advisory
New York
$2.23M -$1.2M -23,584 -35%
PFBT
160
Parkside Financial Bank & Trust
Missouri
$2.21M +$4.41K +87 +0.2%
SAM
161
Silvercrest Asset Management
New York
$2.17M -$302K -5,956 -12%
KeyBank National Association
162
KeyBank National Association
Ohio
$2.14M +$110K +2,178 +5%
Fayez Sarofim & Co
163
Fayez Sarofim & Co
Texas
$2.14M – – –
PFA
164
Pathway Financial Advisers
Indiana
$2.13M +$438K +8,636 +25%
BG
165
Bahl & Gaynor
Ohio
$2.12M – – –
ZIG
166
Zurich Insurance Group
Switzerland
$2.12M – – –
Acadian Asset Management
167
Acadian Asset Management
Massachusetts
$2.08M -$669K -13,188 -24%
DA
168
Doliver Advisors
Texas
$2.08M – – –
GP
169
Geneva Partners
Wisconsin
$2M – – –
PI
170
PFG Investments
New York
$1.99M +$14K +276 +0.7%
CRC
171
Curi RMB Capital
Illinois
$1.96M +$19.7K +388 +1%
DWP
172
Daymark Wealth Partners
Ohio
$1.95M -$33.6K -662 -2%
FCM
173
Fourpath Capital Management
Oklahoma
$1.95M – – –
BC
174
Barnett & Company
Tennessee
$1.94M -$53.8K -1,060 -3%
SWP
175
Stratos Wealth Partners
Ohio
$1.89M -$25.1K -494 -1%
5 6
7
8 9

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.