573 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, 220 increasing their positions, 123 reducing their positions, and 45 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

0.66% less ownership

Funds ownership: 21.26%20.61% (-0.66%)

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: 3028 (-2)

Holders
573
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
28
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$143M
Puts
$96.3M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
OC
201
Oppenheimer & Co
New York
$1.42M
OF
202
Outfitter Financial
Maine
$1.4M
OCPWS
203
One Charles Private Wealth Services
Massachusetts
$1.37M
CAG
204
Csenge Advisory Group
Florida
$1.36M
MFFIA
205
McIntyre, Freedman & Flynn Investment Advisers
Massachusetts
$1.35M
ACP
206
Argyle Capital Partners
California
$1.35M
AF
207
Allworth Financial
California
$1.32M
Pathstone Holdings
208
Pathstone Holdings
New Jersey
$1.31M
Northern Trust
209
Northern Trust
Illinois
$1.29M
VC
210
Veracity Capital
Georgia
$1.28M
CCC
211
Chelsea Counsel Company
California
$1.25M
AFG
212
American Financial Group
Ohio
$1.25M
EWA
213
Exencial Wealth Advisors
Oklahoma
$1.24M
Wolverine Trading
214
Wolverine Trading
Illinois
$1.21M
SMC
215
Smith, Moore & Co
Missouri
$1.13M
SSG
216
Summit Securities Group
New York
$1.12M
IC
217
Inscription Capital
Texas
$1.12M
Allspring Global Investments
218
Allspring Global Investments
North Carolina
$1.12M
SEI Investments
219
SEI Investments
Pennsylvania
$1.11M
CAMG
220
CWA Asset Management Group
Florida
$1.11M
ACL
221
Applied Capital LLC
Florida
$1.1M
CWM
222
C2C Wealth Management
Arizona
$1.07M
TC
223
Trilogy Capital
California
$1.06M
GC
224
Guggenheim Capital
Illinois
$1M
IA
225
Inspire Advisors
Idaho
$994K