576 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%20.62% (-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
576
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
551
$12K
552
$10.4K
553
$9.99K
554
$9.99K
555
$9.99K
556
$9.69K
557
$6.36K
558
$6.24K
559
$6K
560
$5.64K
561
$5.2K
562
$5K
563
$5K
564
$5K
565
$5K
566
$5K
567
$4.95K
568
$4.25K
569
$4K
570
$2K
571
$1.25K
572
$1.15K
573
$999
574
$817
575
$500