TECOGEN INC. — Director's Dealing 2017

May 25, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TECOGEN INC. (TGEN)
CIK: 0001537435
Period of Report: 2017-05-23

Reporting Person: HATSOPOULOS JOHN (Director, Co-Chief Executive Officer, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-23	Common Stock	J	47338	—	Acquired	3299733	Direct

Footnotes

F1: Following the completion of the Merger and pursuant to the Merger Agreement between the Company and American DG Energy Inc. dated November 1, 2016 and as amended March 23, 2017, American DG Energy's securities were converted to securities of the Company.