Roger P. Deschenes - 24 Jul 2025 Form 4 Insider Report for TECOGEN INC. (TGEN)

Role: CAO
Signature: /s/ Roger P. Deschenes
Issuer symbol: TGEN
Transactions as of: 24 Jul 2025
Net transactions value: +$100,726
Form type: 4
Filing time: 28 Jul 2025, 11:07:14 UTC
Previous filing: 24 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Deschenes Roger P.	CAO	76 TREBLE COVE ROAD, NORTH BILLERICA	/s/ Roger P. Deschenes	28 Jul 2025	0001496259

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TGEN	Common Stock	Award	$0	+17,964	+72%	$0.000000	42,962	24 Jul 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	$100,726	+12,063	+8.6%	$8.35	152,063	24 Jul 2025	Common Stock	12,063	$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