Sec Form 4 Filing - Natsis Tryfon @ EUROSITE POWER INC. - 2016-09-30

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Natsis Tryfon 2. Issuer Name and Ticker or Trading Symbol EUROSITE POWER INC. [ EUSP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 36 CHEMIN DU MILIEU, COLLONGE-BELLERIVE 3. Date of Earliest Transaction (MM/DD/YY) 09/30/2016 (Street) GENEVA, V81245 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 09/30/2016 J( 1 ) 9,700,000 A 29,071,297 D ( 2 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Warrants (right to buy) $ 0.6 09/30/2016 J( 3 ) 1,020,000 01/29/2016 10/03/2017 Common Stock 1,020,000 ( 3 ) 0 D ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Natsis Tryfon 36 CHEMIN DU MILIEU, COLLONGE-BELLERIVE GENEVA, V81245 X Pantopoulou Despoina 36 CHEMIN DU MILIEU, COLLONGE-BELLERIVE GENEVA, V81245 X Signatures /s/ Tryfon Natsis 10/24/2016 Signature of Reporting Person Date /s/ Despoina Pantopoulou 10/24/2016 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Reporting Persons acquired 9,700,000 shares of common stock of the Issuer from American DG Energy Inc. ("ADGE") in exchange for the cancellation of an aggregate amount of $4,263,737 in principal and prepaid interest of the 6% senior unsecured convertible debenture due 2018 issued to the Reporting Persons by ADGE. ( 2 )The reported securities are jointly owned by Tryfon Natsis and his wife, Despoina Pantopoulou, as joint tenants with the right of survivorship. ( 3 )The Reporting Persons received an aggregate of $2,200,000 from the Issuer in exchange, in part, for the Reporting Persons cancelling and relinquishing warrants they held to purchase an aggregate amount of 1,020,000 shares of common stock of the Issuer from ADGE.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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