564 hedge funds and large institutions have $11.6B invested in MPLX in 2025 Q1 according to their latest regulatory filings, with 75 funds opening new positions, 199 increasing their positions, 130 reducing their positions, and 33 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
564
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
31
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$280M
Puts
$76.8M
Net Calls
Net Calls Change

Top Buyers

1 +$115M
2 +$55.4M
3 +$46.8M
4
JP Morgan Chase
JP Morgan Chase
New York
+$35M
5
Neuberger Berman Group
Neuberger Berman Group
New York
+$18.9M
Name Holding Trade Value Shares
Change
Change in
Stake
301
$541K
302
$538K
303
$538K
304
$537K
305
$535K
306
$532K
307
$531K
308
$527K
309
$523K
310
$521K
311
$516K
312
$515K
313
$512K
314
$512K
315
$510K
316
$504K
317
$496K
318
$493K
319
$490K
320
$489K
321
$488K
322
$482K
323
$482K
324
$481K
325
$481K