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CIK 0001537435 · Non-accelerated filer<br>Smaller reporting company

TECOGEN INC.

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Ticker
TGEN
Exchange
NYSE
Industry
Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
043536131
Phone
781-466-6400
Business address
76 TREBLE COVE ROAD, BLDG. 1, NORTH BILLERICA, MA, 01862
Former names
TECOGEN INC
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Date Insider Transaction Shares Price Value Owned after
2025-07-24 LEWIS EARL R Director Grant or award · Stock Option (Right to Buy) +25,000 $8.35 $209K 91,250
2025-07-24 GALITEVA ANGELINA Director Grant or award · Stock Option (Right to Buy) +25,000 $8.35 $209K 225,000
2025-06-24 PANORA ROBERT A COO and President Sale −900 $6.86 $6K 62,523
2025-06-23 PANORA ROBERT A COO and President Sale −31,800 $6.36 $202K 63,423
2025-06-23 Lafaille Stephen VP of Business Development Option exercise +10,000 $1.10 $11K 10,400
2025-06-23 Lafaille Stephen VP of Business Development Sale −10,000 $7.25 $73K 400
2025-06-23 Lafaille Stephen VP of Business Development Option exercise · Stock Options (Right to Buy) −10,000 $1.10 $11K 17,500
2025-06-18 PANORA ROBERT A COO and President Sale −13,000 $5.03 $65K 95,223
2025-06-16 PANORA ROBERT A COO and President Option exercise +12,723 $0.79 $10K 25,723
2025-06-16 PANORA ROBERT A COO and President Option exercise +30,000 $0.71 $21K 55,723
2025-06-16 PANORA ROBERT A COO and President Option exercise +52,500 $1.10 $58K 108,223
2025-06-16 PANORA ROBERT A COO and President Option exercise · Stock Option (Right to Buy) −12,723 $0.79 $10K 0
2025-06-16 PANORA ROBERT A COO and President Option exercise · Stock Option (Right to Buy) −30,000 $0.71 $21K 100,000
2025-06-16 PANORA ROBERT A COO and President Option exercise · Stock Option (Right to Buy) −52,500 $1.10 $58K 0
2025-06-16 PANORA ROBERT A COO and President Option exercise +12,723 $0.79 $10K 82,723
2025-06-16 PANORA ROBERT A COO and President Option exercise +30,000 $0.71 $21K 112,723
2025-06-16 PANORA ROBERT A COO and President Option exercise +52,500 $1.10 $58K 165,223
2025-06-06 Lafaille Stephen VP of Business Development Option exercise +25,000 $1.10 $28K 25,400
2025-06-06 Lafaille Stephen VP of Business Development Sale −25,000 $5.98 $150K 400
2025-06-06 Lafaille Stephen VP of Business Development Option exercise · Stock Options (Right to Buy) −25,000 $1.10 $28K 27,500

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