Stephen Lafaille - Jul 24, 2025 Form 4 Insider Report for TECOGEN INC. (TGEN)

Role
VP of Business Development
Signature
/s/ Stephen Lafaille
Stock symbol
TGEN
Transactions as of
Jul 24, 2025
Transactions value $
$201,026
Form type
4
Date filed
7/28/2025, 11:12 AM
Previous filing
Jun 24, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Lafaille Stephen VP of Business Development 76 TREBLE COVE ROAD, NORTH BILLERICA /s/ Stephen Lafaille 2025-07-28 0002074096

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TGEN Common Stock Award $0 +12K +2994% $0.00 12.4K Jul 24, 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction TGEN Stock Option (Right to Buy) Award $201K +24.1K +49.27% $8.35 72.9K Jul 24, 2025 Common Stock 24.1K $8.35 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Restricted Stock Award, vests 25% per year
F2 Vests 25% per year