565 hedge funds and large institutions have $10.5B invested in MPLX in 2025 Q3 according to their latest regulatory filings, with 51 funds opening new positions, 219 increasing their positions, 121 reducing their positions, and 43 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
565
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
Pathstone Holdings
207
Pathstone Holdings
New Jersey
$1.31M
Northern Trust
208
Northern Trust
Illinois
$1.29M
VC
209
Veracity Capital
Georgia
$1.28M
AFG
210
American Financial Group
Ohio
$1.25M
CCC
211
Chelsea Counsel Company
California
$1.25M
EWA
212
Exencial Wealth Advisors
Oklahoma
$1.24M
Wolverine Trading
213
Wolverine Trading
Illinois
$1.21M
SMC
214
Smith, Moore & Co
Missouri
$1.13M
SSG
215
Summit Securities Group
New York
$1.12M
IC
216
Inscription Capital
Texas
$1.12M
Allspring Global Investments
217
Allspring Global Investments
North Carolina
$1.12M
SEI Investments
218
SEI Investments
Pennsylvania
$1.11M
CAMG
219
CWA Asset Management Group
Florida
$1.11M
ACL
220
Applied Capital LLC
Florida
$1.1M
CWM
221
C2C Wealth Management
Arizona
$1.07M
TC
222
Trilogy Capital
California
$1.06M
GC
223
Guggenheim Capital
Illinois
$1M
IA
224
Inspire Advisors
Idaho
$994K
FWIA
225
Fort Washington Investment Advisors
Ohio
$990K