Form4insider filings, from the source

Company · CIK 0001537435 · SIC 3585 — Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip · NYSE

TECOGEN INC. · TGEN

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jun 26, 2026 AForm 4/A →Sep 8, 5:12 pm EDTStephen LafailleVP of Business Development29,013——41,389—
Jun 26, 2026 AForm 4/A →Sep 8, 5:11 pm EDTJohn Kimball Whiting IVGeneral Counsel & Secretary19,342——41,954—
Jun 26, 2026 AForm 4/A →Sep 8, 5:11 pm EDTRobert PanoraCOO and President9,671——72,194—
Jun 26, 2026 AForm 4/A →Sep 8, 5:10 pm EDTRoger P. DeschenesChief Financial Officer29,013——81,975—
Jun 26, 2026 AForm 4/A →Sep 8, 5:08 pm EDTAbinand RangeshChief Executive Officer, Director174,081——241,274—
Jun 26, 2026 AForm 4 →Jun 30, 8:36 pm EDTJohn Kimball Whiting IVGeneral Counsel & Secretary19,342——19,342— amended
Jun 26, 2026 AForm 4 →Jun 30, 8:36 pm EDTStephen LafailleVP of Business Development29,013——29,013— amended
Jun 26, 2026 AForm 4 →Jun 30, 8:35 pm EDTRoger P. DeschenesCAO29,013——29,013— amended
Jun 26, 2026 AForm 4 →Jun 30, 8:35 pm EDTRobert PanoraCOO and President9,671——9,671— amended
Jun 26, 2026 AForm 4 →Jun 30, 8:34 pm EDTAbinand RangeshChief Executive Officer, Director174,081——174,081— amended

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jun 26, 2026 AForm 4 →Jun 30, 8:35 pm EDTRobert PanoraCOO and President26,041$5.17$134,63226,041— amended
Jun 26, 2026 AForm 4 →Jun 30, 8:34 pm EDTAbinand RangeshChief Executive Officer, Director26,041$5.17$134,63226,041— amended
Jun 26, 2026 AForm 4 →Jun 30, 8:34 pm EDTSusan B HirschDirector25,000$5.17$129,25025,000—
Jun 26, 2026 AForm 4 →Jun 30, 8:33 pm EDTJohn M AlbertineDirector25,000$5.17$129,25025,000—
Jun 26, 2026 AForm 4 →Jun 30, 8:32 pm EDTEarl LewisDirector25,000$5.17$129,25025,000—
Jun 26, 2026 AForm 4 →Jun 30, 8:32 pm EDTAhmed GhoniemDirector25,000$5.17$129,25025,000—
Jun 26, 2026 AForm 4 →Jun 30, 8:30 pm EDTAngelina GalitevaDirector25,000$5.17$129,25025,000—