TECOGEN INC. — Director's Dealing 2014

May 22, 2014

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: TECOGEN INC. (TGEN)
CIK: 0001537435
Period of Report: 2014-05-20

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

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2135210	Indirect
Common Stock	593770	Direct
Common Stock	989859	Indirect

Footnotes

F1: By J&P Enterprises LLC. John N. Hatsopoulos is the Executive Member and has voting and investment power of the shares held by J&P Enterprises LLC.

F2: By The John N. Hatsopoulos Family Trust 2007 for the benefit of Patricia L. Hatsopoulos, Alexander J. Hatsopoulos, and Nia Marie Hatsopoulos, for which George N. Hatsopoulos and Patricia L. Hatsopoulos are the trustees.