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TGEN

Tecogen Inc

70 hedge funds and large institutions have $68M invested in Tecogen Inc in 2025 Q3 according to their latest regulatory filings, with 42 funds opening new positions, 14 increasing their positions, 6 reducing their positions, and 2 closing their positions.

New
Increased
Maintained
Reduced
Closed

2,000% more first-time investments, than exits

New positions opened: 42 | Existing positions closed: 2

158% more capital invested

Capital invested by funds: $26.4M → $68M (+$41.6M)

133% more funds holding

Funds holding: 3070 (+40)

133% more repeat investments, than reductions

Existing positions increased: 14 | Existing positions reduced: 6

10.73% more ownership

Funds ownership: 15.3%26.03% (+11%)

48% less call options, than puts

Call options by funds: $3.26M | Put options by funds: $6.3M

Holders
70
Holders Change
+40
Holders Change %
+133.33%
% of All Funds
0.92%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
% of All Funds
0.01%
New
42
Increased
14
Reduced
6
Closed
2
Calls
$3.26M
Puts
$6.3M
Net Calls
-$3.04M
Net Calls Change
-$3.04M
Name Holding Trade Value Shares
Change
Change in
Stake
Vanguard Group
1
Vanguard Group
Pennsylvania
$7.67M +$359K +44,797 +5%
BA
2
Bard Associates
Illinois
$6.08M +$537K +67,029 +11%
CHAM
3
Clear Harbor Asset Management
Connecticut
$5.39M +$12.8K +1,600 +0.3%
PCM
4
Portolan Capital Management
Massachusetts
$5.25M +$1.04M +130,235 +28%
HIM
5
Herald Investment Management
United Kingdom
$3.9M +$1M +125,000 +39%
PIP
6
Palisades Investment Partners
California
$3.32M +$3.02M +376,594 New
ACM
7
Arosa Capital Management
Florida
$2.53M +$2.3M +287,500 New
Susquehanna International Group
8
Susquehanna International Group
Pennsylvania
$2.22M +$2.02M +252,035 New
Two Sigma Investments
9
Two Sigma Investments
New York
$2.17M +$1.98M +246,705 New
GJL
10
Gendell Jeffrey L
$2.15M +$1.62M +201,922 +484%
IWC
11
Integrated Wealth Concepts
Massachusetts
$1.91M +$314K +39,215 +22%
Citadel Advisors
12
Citadel Advisors
Florida
$1.88M +$1.71M +213,708 New
BlackRock
13
BlackRock
New York
$1.63M
Geode Capital Management
14
Geode Capital Management
Massachusetts
$1.47M +$190K +23,707 +17%
Raymond James Financial
15
Raymond James Financial
Florida
$1.39M +$1.27M +157,888 New
ACA
16
Apis Capital Advisors
New York
$1.35M +$1.23M +153,000 New
New York State Common Retirement Fund
17
New York State Common Retirement Fund
New York
$1.21M +$1.1M +137,200 New
Goldman Sachs
18
Goldman Sachs
New York
$1.17M +$1.06M +132,762 New
Royal Bank of Canada
19
Royal Bank of Canada
Ontario, Canada
$1.08M +$512K +63,889 +109%
TDC
20
Thompson Davis & Co
Virginia
$1.04M +$946K +117,953 New
GIM
21
Granahan Investment Management
Massachusetts
$990K +$901K +112,338 New
Renaissance Technologies
22
Renaissance Technologies
New York
$900K +$819K +102,200 New
Russell Investments Group
23
Russell Investments Group
United Kingdom
$834K +$759K +94,696 New
Jane Street
24
Jane Street
New York
$820K +$746K +93,110 New
EI
25
EAM Investors
California
$653K +$594K +74,101 New

TGEN Hedge Fund Activity: Q3 2025 in Review

70 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Tecogen Inc (TGEN) for Q3 2025, worth a combined $68M — up 158% from $26.4M a quarter earlier.

Buyers outnumbered sellers: 42 funds opened new TGEN positions and 2 closed out — a net gain of 40 holders — while 14 added to existing stakes and 6 trimmed.

The largest buyer was Palisades Investment Partners, opening a new position worth an estimated $3.02M. The largest seller was Corsair Capital Management, cutting an estimated $102K.

  • 70 institutional investors held Tecogen Inc (TGEN) as of Q3 2025, up from 30 in Q2 2025.
  • Funds reported $68M of Tecogen Inc stock for Q3 2025, up 158% quarter-over-quarter.
  • 42 funds opened new Tecogen Inc positions in Q3 2025 and 2 closed out, a net change of +40 holders.
  • The largest Tecogen Inc buyer in Q3 2025 was Palisades Investment Partners, an estimated $3.02M added.
  • The largest Tecogen Inc seller in Q3 2025 was Corsair Capital Management, an estimated $102K sold.

Based on aggregated 13F filings for Q3 2025.