TECOGEN INC. - Common Stock, $0.001 par value (TGEN)

Historical Holders from Q2 2014 to Q3 2025

Symbol
TGEN on NYSE
CUSIP
87876P201
Type / Class
Equity / Common Stock, $0.001 par value
Shares outstanding
25.6M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
7.73M
Holdings value
$68M
% of all portfolios
0.001%
Grand Portfolio weight change
+0%
Number of holders
70
Number of buys
56
Number of sells
-7
Average Value change %
+0%
Average buys %
+0.001%
Average sells %
0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of TECOGEN INC. - Common Stock, $0.001 par value (TGEN)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Natsis Tryfon 1.8% $4.18M 460K Tryfon Natsis and Depoina Pantopoulou, as Joint Tenants with the Right of Survivorship Jun 30, 2025

Institutional Holders of TECOGEN INC. - Common Stock, $0.001 par value (TGEN)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 7.73M $68M +$34M $8.81 70
2025 Q2 3.85M $26.2M +$26.1M $6.80 29
2025 Q1 12.5K $28K +$28K $2.24 1
2024 Q1 0 $0 -$260K 0
2023 Q4 321K $260K $0 $0.81 1
2023 Q3 321K $273K $0 $0.85 1
2023 Q2 321K $321K $0 $1.00 1
2023 Q1 321K $381K $0 $1.19 1
2022 Q4 321K $401K $0 $1.25 1
2022 Q3 321K $304K $0 $0.95 1
2022 Q2 321K $362K $0 $1.13 1
2022 Q1 321K $529K -$12K $1.65 1
2021 Q4 331K $397K $0 $1.18 2
2021 Q3 321K $581K $0 $1.81 1
2021 Q2 321K $600K $0 $1.87 1
2021 Q1 321K $545K $0 $1.70 1
2020 Q4 321K $391K $0 $1.22 1
2020 Q3 321K $292K -$67K $0.91 1
2020 Q2 416K $291K -$2.95M $0.71 3
2020 Q1 3.58M $3.33M -$271K $0.93 19
2019 Q4 3.85M $8.17M -$318K $2.12 17
2019 Q3 4.01M $9.51M -$179K $2.38 21
2019 Q2 4.09M $15.2M +$276K $3.75 19
2019 Q1 4.01M $16M +$3.94M $4.00 22
2018 Q4 3.03M $11M -$407K $3.63 17
2018 Q3 3.2M $10.4M +$40.6K $3.15 16
2018 Q2 3.19M $11.8M +$2.28M $3.72 17
2018 Q1 2.57M $7.35M +$273K $2.86 15
2017 Q4 2.08M $5.61M -$23.3K $2.70 12
2017 Q3 2.44M $7.79M +$642K $3.19 13
2017 Q2 2.24M $7.42M +$619K $3.33 10
2017 Q1 2.02M $7.67M +$1.08M $3.79 9
2016 Q4 1.73M $7.27M -$139K $4.20 9
2016 Q3 1.76M $7.33M -$2.59M $4.16 11
2016 Q2 2.38M $12.2M -$1.57M $5.10 6
2016 Q1 2.84M $11.1M +$2.18M $3.91 11
2015 Q4 2.29M $8.03M -$360K $3.50 10
2015 Q3 2.4M $8.27M -$34.5K $3.45 10
2015 Q2 2.4M $9.86M +$4.42K $4.10 13
2015 Q1 2.4M $12.2M +$430K $5.07 11
2014 Q4 2.32M $12.1M +$5.46M $5.22 11
2014 Q3 1.27M $7.13M +$2.64M $5.60 8
2014 Q2 801K $6.4M +$6.4M $7.99 8