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TGEN

Tecogen Inc

62 hedge funds and large institutions have $19.9M invested in Tecogen Inc in 2026 Q1 according to their latest regulatory filings, with 15 funds opening new positions, 16 increasing their positions, 19 reducing their positions, and 17 closing their positions.

New
Increased
Maintained
Reduced
Closed

122% more call options, than puts

Call options by funds: $1.58M | Put options by funds: $711K

0.56% more ownership

Funds ownership: 25.53%26.09% (+0.56%)

5% less funds holding

Funds holding: 6562 (-3)

12% less first-time investments, than exits

New positions opened: 15 | Existing positions closed: 17

16% less repeat investments, than reductions

Existing positions increased: 16 | Existing positions reduced: 19

47% less capital invested

Capital invested by funds: $37.6M → $19.9M (-$17.7M)

Holders
62
Holders Change
-3
Holders Change %
-4.62%
% of All Funds
0.76%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
15
Increased
16
Reduced
19
Closed
17
Calls
$1.58M
Puts
$711K
Net Calls
+$865K
Net Calls Change
-$93K
Name Holding Trade Value Shares
Change
Change in
Stake
Group One Trading
26
Group One Trading
Illinois
$215K +$100K +27,344 +48%
ACA
27
Apis Capital Advisors
New York
$197K +$283K +77,000 New
Morgan Stanley
28
Morgan Stanley
New York
$196K +$24.8K +6,758 +10%
State Street
29
State Street
Massachusetts
$177K
Two Sigma Investments
30
Two Sigma Investments
New York
$173K -$555K -151,210 -69%
PI
31
PFG Investments
New York
$160K
CCM
32
Corsair Capital Management
New York
$141K
DC
33
Diametric Capital
Massachusetts
$136K -$353 -96 -0.2%
Simplex Trading
34
Simplex Trading
Illinois
$106K -$19.1K -5,199 -11%
LPL Financial
35
LPL Financial
California
$106K -$120K -32,542 -44%
GI
36
GAMCO Investors
Connecticut
$102K
HCA
37
Harbor Capital Advisors
Illinois
$102K -$1.74K -474 -1%
Northern Trust
38
Northern Trust
Illinois
$96.5K
JF
39
Jump Financial
Illinois
$90.9K +$130K +35,500 New
BCM
40
Bridgeway Capital Management
Texas
$84.6K +$27.7K +7,548 +30%
Goldman Sachs
41
Goldman Sachs
New York
$64.3K -$157K -42,618 -63%
GF
42
Gabelli Funds
New York
$51.2K +$73.5K +20,000 New
Pathstone Holdings
43
Pathstone Holdings
New Jersey
$47.9K
SAM
44
Shikiar Asset Management
New York
$45K +$16K +4,350 +33%
Commonwealth Equity Services
45
Commonwealth Equity Services
Massachusetts
$41.3K +$16K +4,350 +37%
HF
46
HRT Financial
New York
$38K +$55.4K +15,071 New
IMC Chicago
47
IMC Chicago
Illinois
$34.9K -$108K -29,305 -68%
Dimensional Fund Advisors
48
Dimensional Fund Advisors
Texas
$28.6K +$41K +11,163 New
TRCT
49
Tower Research Capital (TRC)
New York
$26.1K +$37.4K +10,189 New
CFG
50
Citizens Financial Group
Rhode Island
$25.6K +$36.7K +10,000 New

TGEN Hedge Fund Activity: Q1 2026 in Review

62 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Tecogen Inc (TGEN) for Q1 2026, worth a combined $19.9M — down 47% from $37.6M a quarter earlier.

Sellers outnumbered buyers: 17 funds closed out of TGEN and 15 opened new positions — a net loss of 2 holders — while 19 trimmed existing stakes and 16 added.

The largest buyer was Meros Investment Management, opening a new position worth an estimated $1.07M. The largest seller was Susquehanna International Group, cutting an estimated $711K.

  • 62 institutional investors held Tecogen Inc (TGEN) as of Q1 2026, down from 65 in Q4 2025.
  • Funds reported $19.9M of Tecogen Inc stock for Q1 2026, down 47% quarter-over-quarter.
  • 15 funds opened new Tecogen Inc positions in Q1 2026 and 17 closed out, a net change of -2 holders.
  • The largest Tecogen Inc buyer in Q1 2026 was Meros Investment Management, an estimated $1.07M added.
  • The largest Tecogen Inc seller in Q1 2026 was Susquehanna International Group, an estimated $711K sold.

Based on aggregated 13F filings for Q1 2026.