John K. Whiting IV - 20 Sep 2023 Form 4 Insider Report for TECOGEN INC. (TGEN)

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	$33,000	+37,500	+10%	$0.8800	400,000	20 Sep 2023	Common Stock	37,500	$0.8800	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Id	Content
F1	Vests 50% per year