InsiderTrades

Form 4/A for TGEN TECOGEN INC.

Accepted 2026-09-08 17:10:44 ET · period of report 2026-06-26 · accession 0001537435-26-000087 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
A 2026-09-08 17:10 2026-06-26 TGEN Deschenes Roger P. CFO A - Grant $0.00 +29.0K 82.0K +55% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-06-26 A A 29,013 $0.00 81,975 D — — (F1) Restricted Stock Award pursuant to Tecogen Inc. 2022 Stock Incentive Plan. Restrictions lapse 25% per year. (F2) Not applicable (F3) Corrected number of shares beneficially owned following restricted stock grant previously reported on June 30, 2026.