Institutional shares held 7.54 Million
251K calls
533K puts
Total value of holdings $49.1M
$1.63M calls
$3.47M puts
Market Cap $162M
24,850,300 Shares Out.
Institutional ownership 30.35%
# of Institutions 79


Latest Institutional Activity in TGEN

Top Purchases

Q3 2025
Palisades Investment Partners, LLC Shares Held: 377K ($2.45M)
Q3 2025
Arosa Capital Management LP Shares Held: 288K ($1.87M)
Q3 2025
Susquehanna International Group, LLP Shares Held: 252K ($1.64M)
Q3 2025
Two Sigma Investments, LP Shares Held: 247K ($1.61M)
Q3 2025
Citadel Advisors LLC Shares Held: 214K ($1.39M)

Top Sells

Q3 2025
Corsair Capital Management, L.P. Shares Held: 55K ($358K)
Q3 2025
Advisory Services Network, LLC Shares Held: 5K ($32.6K)
Q3 2025
Shikiar Asset Management Inc Shares Held: 18.5K ($120K)
Q3 2025
Gamco Investors, Inc. Et Al Shares Held: 40K ($260K)
Q3 2025
High Tower Advisors, LLC Shares Held: 63.1K ($411K)

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
625K Shares
From 10 Insiders
Other acquisition or disposition 240K shares
Open market or private purchase 100K 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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