Montauk Renewables
MNTK
82 hedge funds and large institutions have $33.3M invested in Montauk Renewables in 2025 Q4 according to their latest regulatory filings, with 4 funds opening new positions, 25 increasing their positions, 33 reducing their positions, and 13 closing their positions.
0.61% less ownership
Funds ownership: 14.59% → 13.98% (-0.61%)
10% less funds holding
Funds holding: 91 → 82 (-9)
20% less capital invested
Capital invested by funds: $41.7M → $33.3M (-$8.45M)
24% less repeat investments, than reductions
Existing positions increased: 25 | Existing positions reduced: 33
69% less first-time investments, than exits
New positions opened: 4 | Existing positions closed: 13
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Morgan Stanley
New York
|
+$176K |
| 2 |
BlackRock
New York
|
+$110K |
| 3 |
Deutsche Bank
Frankfurt Am Main Ge,
Germany
|
+$89.9K |
| 4 |
Geode Capital Management
Boston,
Massachusetts
|
+$71.7K |
| 5 |
Jane Street
New York
|
+$62.2K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Vanguard Group
Malvern,
Pennsylvania
|
-$812K |
| 2 |
Millennium Management
New York
|
-$338K |
| 3 |
Dimensional Fund Advisors
Austin,
Texas
|
-$276K |
| 4 |
Barclays
London,
United Kingdom
|
-$266K |
| 5 |
Northern Trust
Chicago,
Illinois
|
-$118K |
MNTK Hedge Fund Activity: Q4 2025 in Review
82 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Montauk Renewables (MNTK) for Q4 2025, worth a combined $33.3M — down 20% from $41.7M a quarter earlier.
Sellers outnumbered buyers: 13 funds closed out of MNTK and 4 opened new positions — a net loss of 9 holders — while 33 trimmed existing stakes and 25 added.
The largest buyer was Morgan Stanley, adding an estimated $176K. The largest seller was Vanguard Group, cutting an estimated $812K.
- 82 institutional investors held Montauk Renewables (MNTK) as of Q4 2025, down from 91 in Q3 2025.
- Funds reported $33.3M of Montauk Renewables stock for Q4 2025, down 20% quarter-over-quarter.
- 4 funds opened new Montauk Renewables positions in Q4 2025 and 13 closed out, a net change of -9 holders.
- The largest Montauk Renewables buyer in Q4 2025 was Morgan Stanley, an estimated $176K added.
- The largest Montauk Renewables seller in Q4 2025 was Vanguard Group, an estimated $812K sold.
Based on aggregated 13F filings for Q4 2025.