575 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

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:

0.65% less ownership

Funds ownership: 21.27%20.61% (-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: 3028 (-2)

Holders
575
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
TSS
376
Two Sigma Securities
New York
$344K
OWP
377
ORG Wealth Partners
Texas
$342K
SI
378
SCP Investment
California
$340K
CAGAS
379
Capital Advisory Group Advisory Services
Minnesota
$338K
OWA
380
ORBA Wealth Advisors
Illinois
$337K
DAS
381
Dynamic Advisor Solutions
Arizona
$336K
CA
382
Cannon Advisors
North Carolina
$333K
FFG
383
Fiduciary Financial Group
California
$331K
SIMG
384
Sonora Investment Management Group
Arizona
$327K
PSP
385
Principal Street Partners
Tennessee
$326K
GT
386
Glenview Trust
Kentucky
$325K
National Bank of Canada
387
National Bank of Canada
Quebec, Canada
$325K
Kovitz Investment Group Partners
388
Kovitz Investment Group Partners
Illinois
$324K
VPWA
389
Vestia Personal Wealth Advisors
Indiana
$323K
AGC
390
Aspen Grove Capital
Colorado
$322K
LC
391
Lavaca Capital
Texas
$320K
HNB
392
Hilltop National Bank
Wyoming
$320K
OIA
393
OneDigital Investment Advisors
Kansas
$311K
BB
394
Bell Bank
North Dakota
$310K
MG
395
Mather Group
Illinois
$305K
UCFA
396
United Capital Financial Advisors
Texas
$303K
GIA
397
Gladstone Institutional Advisory
Florida
$303K
AI
398
Amplify Investments
Illinois
$301K
WSCM
399
Wellington Shields Capital Management
New York
$300K
PA
400
Prossimo Advisors
California
$299K