614 hedge funds and large institutions have $9.52B invested in MPLX in 2025 Q4 according to their latest regulatory filings, with 83 funds opening new positions, 231 increasing their positions, 133 reducing their positions, and 32 closing their positions.

New
Increased
Maintained
Reduced
Closed

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 repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

3.07% less ownership

Funds ownership: 20.61%17.55% (-3.1%)

7% less funds holding in top 10

Funds holding in top 10: 2826 (-2)

9% less capital invested

Capital invested by funds: $10.5B → $9.52B (-$970M)

Holders
614
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
26
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$218M
Puts
$72.7M
Net Calls
Net Calls Change

Top Buyers

1 +$88M
2 +$57.6M
3 +$14.5M
4
Citadel Advisors
Citadel Advisors
Florida
+$12.3M
5
AP
Americana Partners
Texas
+$11M

Top Sellers

1 -$1.35B
2 -$115M
3 -$73M
4
Invesco
Invesco
Georgia
-$71.7M
5
JP Morgan Chase
JP Morgan Chase
New York
-$71.6M