MPLX
MPLX
638 hedge funds and large institutions have $11.1B invested in MPLX in 2026 Q2 according to their latest regulatory filings, with 59 funds opening new positions, 244 increasing their positions, 148 reducing their positions, and 57 closing their positions.
214% more call options, than puts
Call options by funds: $230M | Put options by funds: $73.2M
65% more repeat investments, than reductions
Existing positions increased: 244 | Existing positions reduced: 148
4% more first-time investments, than exits
New positions opened: 59 | Existing positions closed: 57
0.63% less ownership
Funds ownership: 19.97% → 19.34% (-0.63%)
4% less capital invested
Capital invested by funds: $11.6B → $11.1B (-$515M)
1% less funds holding
Funds holding: 646 → 638 (-8)
19% less funds holding in top 10
Funds holding in top 10: 26 → 21 (-5)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AA
ALPS Advisors
Denver,
Colorado
|
+$85.4M |
| 2 |
HF
HRT Financial
New York
|
+$41.7M |
| 3 |
Mirae Asset Global ETFs Holdings
Causeway Bay,
Hong Kong
|
+$38.6M |
| 4 |
AAP
Arax Advisory Partners
Denver,
Colorado
|
+$33.2M |
| 5 |
MMA
Mizuho Markets Americas
New York
|
+$32.1M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
TCA
Tortoise Capital Advisors
Overland Park,
Kansas
|
-$154M |
| 2 |
Blackstone Inc
New York
|
-$134M |
| 3 |
Bank of Montreal
Toronto,
Ontario, Canada
|
-$82.5M |
| 4 |
Goldman Sachs
New York
|
-$65.7M |
| 5 |
KACA
Kayne Anderson Capital Advisors
Los Angeles,
California
|
-$53.8M |
MPLX Hedge Fund Activity: Q2 2026 in Review
638 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in MPLX (MPLX) for Q2 2026, worth a combined $11.1B — down 4.4% from $11.6B a quarter earlier.
Buyers outnumbered sellers: 59 funds opened new MPLX positions and 57 closed out — a net gain of 2 holders — while 244 added to existing stakes and 148 trimmed.
The largest buyer was ALPS Advisors, adding an estimated $85.4M. The largest seller was Tortoise Capital Advisors, cutting an estimated $154M.
- 638 institutional investors held MPLX (MPLX) as of Q2 2026, down from 646 in Q1 2026.
- Funds reported $11.1B of MPLX stock for Q2 2026, down 4.4% quarter-over-quarter.
- 59 funds opened new MPLX positions in Q2 2026 and 57 closed out, a net change of +2 holders.
- The largest MPLX buyer in Q2 2026 was ALPS Advisors, an estimated $85.4M added.
- The largest MPLX seller in Q2 2026 was Tortoise Capital Advisors, an estimated $154M sold.
Based on aggregated 13F filings for Q2 2026.