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TGEN

Tecogen Inc
TGEN

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: 30 → 70 (+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

Top Buyers

Rank Fund Capital Flow
1
PIP
Palisades Investment Partners
California
+$3.02M
2
ACM
Arosa Capital Management
Florida
+$2.3M
3
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$2.02M
4
Two Sigma Investments
Two Sigma Investments
New York
+$1.98M
5
Citadel Advisors
Citadel Advisors
Florida
+$1.71M

Top Sellers

Rank Fund Capital Flow
1
CCM
Corsair Capital Management
New York
-$102K
2
ASN
Advisory Services Network
Georgia
-$40.1K
3
GRP
Global Retirement Partners
California
-$35K
4
SAM
Shikiar Asset Management
New York
-$28.1K
5
GI
GAMCO Investors
Connecticut
-$16K
Name Holding Trade Value Shares
Change 		Change in
Stake
State Street
26
State Street
Massachusetts
$614K +$227K +28,326 +68%
HighTower Advisors
27
HighTower Advisors
Illinois
$556K -$4.01K -500 -0.8%
PI
28
PFG Investments
New York
$551K – – –
CCM
29
Corsair Capital Management
New York
$485K -$102K -12,760 -19%
MHP
30
Manatuck Hill Partners
Connecticut
$441K +$401K +50,000 New
Marshall Wace
31
Marshall Wace
United Kingdom
$432K +$394K +49,089 New
Millennium Management
32
Millennium Management
New York
$425K +$387K +48,245 New
AIP
33
ARS Investment Partners
New York
$380K +$346K +43,173 New
GI
34
GAMCO Investors
Connecticut
$352K -$16K -2,000 -5%
HBCM
35
Heron Bay Capital Management
Michigan
$327K – – –
Two Sigma Advisers
36
Two Sigma Advisers
New York
$319K +$290K +36,200 New
EFA
37
Evernest Financial Advisors
Indiana
$301K +$274K +34,150 New
Group One Trading
38
Group One Trading
Illinois
$299K +$272K +33,952 New
Simplex Trading
39
Simplex Trading
Illinois
$278K +$253K +31,562 New
JWCA
40
J.W. Cole Advisors
Florida
$277K +$252K +31,400 New
DC
41
Diametric Capital
Massachusetts
$271K +$246K +30,741 New
HCA
42
Harbor Capital Advisors
Illinois
$242K +$220K +27,481 New
Northern Trust
43
Northern Trust
Illinois
$227K – – –
BCM
44
Bridgeway Capital Management
Texas
$225K +$204K +25,500 New
Morgan Stanley
45
Morgan Stanley
New York
$197K +$175K +21,785 +3,631%
VF
46
Virtu Financial
New York
$177K +$161K +20,036 New
Pathstone Holdings
47
Pathstone Holdings
New Jersey
$165K – – –
SAM
48
Shikiar Asset Management
New York
$163K -$28.1K -3,500 -16%
Wolverine Trading
49
Wolverine Trading
Illinois
$144K +$140K +17,495 New
TRCT
50
Tower Research Capital (TRC)
New York
$134K +$118K +14,738 +2,971%
1
2
3

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.