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Tecogen Inc. (TGEN): insider buying, hedge funds & Congress trades

Tecogen Inc. (TGEN): 11 insider purchases in the last two years (4 opportunistic).

Insider buying

FiledInsiderSharesPriceValueType
Mar 27, 2026Lewis Earl
Director
5,000$2.88$14.4Kno history
Mar 27, 2026Lewis Earl
Director
5,000$2.52$12.6Kno history
Mar 27, 2026Hirsch Susan B
Director
10,000$2.54$25.4Kno history
Mar 23, 2026Rangesh Abinand
Director, Officer, Other
3,000$2.30$6.9Kno history
Mar 23, 2026Deschenes Roger P.
Officer
10,000$2.23$22.3Kno history
Mar 23, 2026Whiting John Kimball IV
Officer
10,000$2.38$23.8Kno history
Jun 24, 2025Lafaille Stephen
Officer
400$2.50$1.0Kno history
Mar 25, 2025Lewis Earl R
Director
10,000$0.68$6.8Kopportunistic
Mar 25, 2025Lewis Earl R
Director
2,000$0.80$1.6Kopportunistic
Dec 6, 2024Lewis Earl R
Director
2,000$0.80$1.6Kopportunistic
Dec 6, 2024Lewis Earl R
Director
100,000$0.71$71.0Kopportunistic

Open-market purchases from SEC Form 4. "Opportunistic" = this insider trades every year but not on a fixed schedule (Cohen, Malloy & Pomorski); "routine" buys carry little information.

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