Montauk Renewables
MNTK
91 hedge funds and large institutions have $41.7M invested in Montauk Renewables in 2025 Q3 according to their latest regulatory filings, with 13 funds opening new positions, 25 increasing their positions, 33 reducing their positions, and 8 closing their positions.
63% more first-time investments, than exits
New positions opened: 13 | Existing positions closed: 8
6% more funds holding
Funds holding: 86 → 91 (+5)
0.09% less ownership
Funds ownership: 14.68% → 14.59% (-0.09%)
10% less capital invested
Capital invested by funds: $46.4M → $41.7M (-$4.72M)
24% less repeat investments, than reductions
Existing positions increased: 25 | Existing positions reduced: 33
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
+$281K |
| 2 |
JP Morgan Chase
New York
|
+$242K |
| 3 |
Barclays
London,
United Kingdom
|
+$195K |
| 4 |
Goldman Sachs
New York
|
+$157K |
| 5 |
D.E. Shaw & Co
New York
|
+$91.7K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$234K |
| 2 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$194K |
| 3 |
SAM
Storebrand Asset Management
Lysaker,
Norway
|
-$185K |
| 4 |
Marshall Wace
London,
United Kingdom
|
-$126K |
| 5 |
Deutsche Bank
Frankfurt Am Main Ge,
Germany
|
-$124K |
MNTK Hedge Fund Activity: Q3 2025 in Review
91 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Montauk Renewables (MNTK) for Q3 2025, worth a combined $41.7M — down 10% from $46.4M a quarter earlier.
Buyers outnumbered sellers: 13 funds opened new MNTK positions and 8 closed out — a net gain of 5 holders — while 25 added to existing stakes and 33 trimmed.
The largest buyer was Citadel Advisors, adding an estimated $281K. The largest seller was BlackRock, cutting an estimated $234K.
- 91 institutional investors held Montauk Renewables (MNTK) as of Q3 2025, up from 86 in Q2 2025.
- Funds reported $41.7M of Montauk Renewables stock for Q3 2025, down 10% quarter-over-quarter.
- 13 funds opened new Montauk Renewables positions in Q3 2025 and 8 closed out, a net change of +5 holders.
- The largest Montauk Renewables buyer in Q3 2025 was Citadel Advisors, an estimated $281K added.
- The largest Montauk Renewables seller in Q3 2025 was BlackRock, an estimated $234K sold.
Based on aggregated 13F filings for Q3 2025.