Institutional shares held 3.67 Million
0 calls
0 puts
Total value of holdings $32.4M
$0 calls
$0 puts
Market Cap $219M
24,850,300 Shares Out.
Institutional ownership 14.77%
# of Institutions 27


Latest Institutional Activity in TGEN

Top Purchases

Q2 2025
Vanguard Group Inc Shares Held: 826K ($7.28M)
Q2 2025
Bard Associates Inc Shares Held: 624K ($5.5M)
Q2 2025
Clear Harbor Asset Management, LLC Shares Held: 610K ($5.38M)
Q2 2025
Portolan Capital Management, LLC Shares Held: 466K ($4.11M)
Q2 2025
Herald Investment Management LTD Shares Held: 321K ($2.83M)

Top Sells

Q1 2022
Alan B. Lancz & Associates, Inc. Shares Held: 0 ($0)
Q3 2020
Financial Counselors Inc Shares Held: 0 ($0)
Q2 2020
Wellington Management Group LLP Shares Held: 0 ($0)
Q2 2020
Essex Investment Management CO LLC Shares Held: 0 ($0)
Q2 2020
Parsons Capital Management Inc Shares Held: 0 ($0)

About TGEN

Tecogen Inc. designs, manufactures, markets, and maintains industrial and commercial cogeneration systems for residential, commercial, recreational, and industrial use in the United States and internationally. It operates through three segments: Products, Services, and Energy Production. The company offers InVerde e+ and TecoPower, a cogeneration product that supplies electricity and hot water; TECOCHILL air-conditioning and refrigeration chillers; Tecofrost gas engine-driven refrigeration compressors; and water heaters under the Ilios brand name, as well as emissions control technology under the Ultera brand name. It also provides long-term maintenance contracts, parts sales, and turnkey installation services through a network of eleven field service centers in California, the Midwest, the Northeast, and the Southeast, as well as in Ontario, Canada. In addition, the company installs, owns, operates, and maintains distributed generation of electricity, energy, and other complementary systems. It serves hospitals and nursing homes, colleges, universities, health clubs, spas, hotels, motels, office and retail buildings, food and beverage processors, multi-unit residential buildings, laundries, ice rinks, swimming pools, factories, municipal buildings, military installations, and indoor growing facilities. The company was incorporated in 2000 and is headquartered in Waltham, Massachusetts.


Insider Transactions at TGEN

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
655K Shares
From 11 Insiders
Open market or private purchase 130K shares
Other acquisition or disposition 240K shares
Exercise of in-the-money or at-the-money derivatives securities 189K shares
Grant, award, or other acquisition 95.8K shares
Sell / Disposition
60K Shares
From 1 Insiders
Open market or private sale 60K shares

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