Investor Hatsopoulos John
13D/G Filings

This page shows a list of all the recent 13D/G filings made by Hatsopoulos John . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

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Date Form Target Prev
Shares		 Current
Shares		 Change
(Percent)		 Ownership
(Percent)		 Change
(Percent)
2019-03-26 13G/A TGEN / Tecogen Inc. 2,283,184 2,322,596
2018-02-12 13G/A TGEN / Tecogen Inc. 3,252,395 2,283,184
2017-02-15 13G/A TGEN / Tecogen Inc. 3,718,939 3,252,395
2016-12-20 13D/A EUSP / Aivita Group Inc. 7,709,785 5,121,898
2016-05-24 13D EUSP / Aivita Group Inc. 7,709,785 7,709,785
2016-05-23 13D EUSP / Aivita Group Inc. 6,962,552 7,709,785
2016-05-13 13D EUSP / Aivita Group Inc. 6,962,552
2016-02-16 13G/A TGEN / Tecogen Inc. 3,718,939
2016-02-16 13G/A ADGE / American DG Energy, Inc. 1,651,987
2015-02-18 13G TGEN / Tecogen Inc. 3,718,939
2015-02-18 13G/A ADGE / American DG Energy, Inc. 9,924,990
2014-02-14 13G/A ADGE / American DG Energy, Inc. 5,378,507
2013-02-14 13G/A ADGE / American DG Energy, Inc. 5,246,137
2012-02-13 13G/A ADGE / American DG Energy, Inc. 5,651,834