562 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, 129 reducing their positions, and 33 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
562
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
101
$5.83M
102
$5.59M
103
$5.35M
104
$5.35M
105
$4.98M
106
$4.72M
107
$4.67M
108
$4.65M
109
$4.6M
110
$4.35M
111
$4.31M
112
$4.19M
113
$4.18M
114
$4.14M
115
$4.1M
116
$3.88M
117
$3.86M
118
$3.81M
119
$3.75M
120
$3.74M
121
$3.73M
122
$3.64M
123
$3.61M
124
$3.59M
125
$3.58M