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
476
$202K
477
$201K
478
$198K
479
$197K
480
$185K
481
$181K
482
$181K
483
$174K
484
$172K
485
$172K
486
$170K
487
$164K
488
$161K
489
$157K
490
$150K
491
$147K
492
$142K
493
$141K
494
$135K
495
$123K
496
$123K
497
$110K
498
$109K
499
$109K
500
$108K