Tecogen Inc
TGEN
66 hedge funds and large institutions have $37.7M invested in Tecogen Inc in 2025 Q4 according to their latest regulatory filings, with 15 funds opening new positions, 23 increasing their positions, 16 reducing their positions, and 19 closing their positions.
59% more call options, than puts
Call options by funds: $2.57M | Put options by funds: $1.62M
44% more repeat investments, than reductions
Existing positions increased: 23 | Existing positions reduced: 16
0.5% less ownership
Funds ownership: 26.04% → 25.54% (-0.5%)
7% less funds holding
Funds holding: 71 → 66 (-5)
15% less capital inflows, than outflows
Capital inflows: $10.3M | Capital outflows: $12.1M
21% less first-time investments, than exits
New positions opened: 15 | Existing positions closed: 19
100% less funds holding in top 10
Funds holding in top 10: 1 → 0 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Marshall Wace
London,
United Kingdom
|
+$1.78M |
| 2 |
Jane Street
New York
|
+$859K |
| 3 |
UBS Group
Zurich,
Switzerland
|
+$716K |
| 4 |
Point72 Asset Management
Stamford,
Connecticut
|
+$630K |
| 5 |
LPL Financial
San Diego,
California
|
+$554K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Integrated Wealth Concepts
Waltham,
Massachusetts
|
-$1.91M |
| 2 |
Apis Capital Advisors
New York
|
-$1.35M |
| 3 |
Citadel Advisors
Miami,
Florida
|
-$1.24M |
| 4 |
Portolan Capital Management
Boston,
Massachusetts
|
-$1.13M |
| 5 |
Russell Investments Group
London,
United Kingdom
|
-$834K |
TGEN Hedge Fund Activity: Q4 2025 in Review
66 of the 8,307 institutional investors tracked by Wall St. Rank reported a position in Tecogen Inc (TGEN) for Q4 2025, worth a combined $37.7M — down 45% from $68.1M a quarter earlier.
Sellers outnumbered buyers: 19 funds closed out of TGEN and 15 opened new positions — a net loss of 4 holders — while 16 trimmed existing stakes and 23 added.
The largest buyer was Marshall Wace, adding an estimated $1.78M. The largest seller was Integrated Wealth Concepts, exiting entirely with an estimated $1.91M sold.
- 66 institutional investors held Tecogen Inc (TGEN) as of Q4 2025, down from 71 in Q3 2025.
- Funds reported $37.7M of Tecogen Inc stock for Q4 2025, down 45% quarter-over-quarter.
- 15 funds opened new Tecogen Inc positions in Q4 2025 and 19 closed out, a net change of -4 holders.
- The largest Tecogen Inc buyer in Q4 2025 was Marshall Wace, an estimated $1.78M added.
- The largest Tecogen Inc seller in Q4 2025 was Integrated Wealth Concepts, an estimated $1.91M sold.
Based on aggregated 13F filings for Q4 2025.