TECOGEN INC. — Director's Dealing 2025

Jun 3, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TECOGEN INC. (TGEN)
CIK: 0001537435
Period of Report: 2025-05-27

Reporting Person: PANORA ROBERT A (COO and President)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-05-27	Stock Option (Right to Buy)	$0.71	X	70000	Acquired	2030-07-09	Common Stock (70000)	Direct

Footnotes

F1: 100,000 shares of the 200,000 options shares granted pursuant to Stock Option Agreement dated 7/9/2020 vested on 6/30/2022 upon achievement of Adjusted EBITDA performance milestone.

F2: Exercise of option to purchase 70,000 shares of the 100,000 vested shares pursuant to Stock Option Agreement dated 7/9/2020 for 200,000 option shares leaves vested options to purchase 30,000 shares and unvested options to purchase 100,000 shares.