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575 hedge funds and large institutions have $11.2B invested in MPLX in 2025 Q2 according to their latest regulatory filings, with 64 funds opening new positions, 214 increasing their positions, 132 reducing their positions, and 48 closing their positions.

New
Increased
Maintained
Reduced
Closed

125% more call options, than puts

Call options by funds: $167M | Put options by funds: $74.1M

62% more repeat investments, than reductions

Existing positions increased: 214 | Existing positions reduced: 132

33% more first-time investments, than exits

New positions opened: 64 | Existing positions closed: 48

1% more funds holding

Funds holding: 567575 (+8)

0.05% less ownership

Funds ownership: 21.32%21.27% (-0.05%)

4% less capital invested

Capital invested by funds: $11.6B → $11.2B (-$476M)

3% less funds holding in top 10

Funds holding in top 10: 3130 (-1)

Holders
575
Holders Change
+8
Holders Change %
+1.41%
% of All Funds
7.57%
Holding in Top 10
30
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-3.23%
% of All Funds
0.39%
New
64
Increased
214
Reduced
132
Closed
48
Calls
$167M
Puts
$74.1M
Net Calls
+$92.6M
Net Calls Change
-$111M
Name Holding Trade Value Shares
Change
Change in
Stake
EFMC
176
Empire Financial Management Company
New York
$1.87M
Susquehanna International Group
177
Susquehanna International Group
Pennsylvania
$1.86M -$337K -6,625 -16%
PHS
178
Pekin Hardy Strauss
Illinois
$1.83M
Lido Advisors
179
Lido Advisors
California
$1.76M +$24.3K +479 +1%
OWP
180
Obermeyer Wealth Partners
Colorado
$1.76M -$49.9K -982 -3%
PFA
181
Pathway Financial Advisers
Indiana
$1.75M +$86.1K +1,695 +5%
Northern Trust
182
Northern Trust
Illinois
$1.75M -$14.3M -282,126 -89%
AWM
183
Apollon Wealth Management
South Carolina
$1.73M -$15.9K -312 -0.9%
HFS
184
Howard Financial Services
Texas
$1.73M +$61K +1,200 +4%
William Blair & Company
185
William Blair & Company
Illinois
$1.72M -$1.88K -37 -0.1%
BCM
186
Brookstone Capital Management
Illinois
$1.72M -$73.4K -1,444 -4%
AIA
187
AssuredPartners Investment Advisors
Florida
$1.69M -$45.9K -903 -3%
SI
188
Stephens Inc
Arkansas
$1.68M +$3.25K +64 +0.2%
OAM
189
Oppenheimer Asset Management
New York
$1.66M -$56.4K -1,110 -3%
UB
190
UMB Bank
Missouri
$1.64M
PFS
191
Prospera Financial Services
Texas
$1.63M +$83K +1,634 +5%
KPWS
192
Kestra Private Wealth Services
Texas
$1.61M +$464K +9,128 +41%
BCM
193
Birch Capital Management
Texas
$1.6M
PP
194
Pingora Partners
Wyoming
$1.59M
PIWA
195
Prevail Innovative Wealth Advisors
Kansas
$1.56M -$520K -10,235 -25%
QCG
196
Quadrant Capital Group
Ohio
$1.55M
BI
197
Bramshill Investments
Florida
$1.55M -$8.23K -162 -0.5%
AIC
198
Anthracite Investment Company
Texas
$1.55M
IA
199
IFG Advisory
Georgia
$1.53M +$283K +5,571 +23%
ProShare Advisors
200
ProShare Advisors
Maryland
$1.52M +$226K +4,439 +18%

MPLX Hedge Fund Activity: Q2 2025 in Review

575 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in MPLX (MPLX) for Q2 2025, worth a combined $11.2B — down 4.1% from $11.6B a quarter earlier.

Buyers outnumbered sellers: 64 funds opened new MPLX positions and 48 closed out — a net gain of 16 holders — while 214 added to existing stakes and 132 trimmed.

The largest buyer was Victory Capital Management, opening a new position worth an estimated $73.5M. The largest seller was Amundi, exiting entirely with an estimated $73.6M sold.

  • 575 institutional investors held MPLX (MPLX) as of Q2 2025, up from 567 in Q1 2025.
  • Funds reported $11.2B of MPLX stock for Q2 2025, down 4.1% quarter-over-quarter.
  • 64 funds opened new MPLX positions in Q2 2025 and 48 closed out, a net change of +16 holders.
  • The largest MPLX buyer in Q2 2025 was Victory Capital Management, an estimated $73.5M added.
  • The largest MPLX seller in Q2 2025 was Amundi, an estimated $73.6M sold.

Based on aggregated 13F filings for Q2 2025.