Insider · CIK 0001274775

Hatsopoulos John

CIK 0001274775 Name as filed on the most recent filing

Filed as Hatsopoulos John (136)

182 transaction lines · from 136 filings · filed 2004-01-15 to 2024-09-27 The span is the filing dates this catalog holds, not the entity's full filing history. Absence here is not evidence of absence at the SEC.

How this page attributes a trade

A line appears here when the filing that carries it names this CIK as a reporting owner, not only when the parser picked this CIK as the line's primary owner. That is why a joint filing appears on both owners' pages rather than vanishing from the second one. The catalog never merges two CIKs into one person and never splits one CIK into two: identity here is the SEC's own identifier and nothing else.

01

Issuers this insider has filed against

Ordered by last-seen filing date, newest first. Roles are as filed on the Form 4 and are not normalised.

02

Transactions

Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.

182 transactions · Newest transaction date first, id breaking the tie.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-22 05:23 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2023-06-08 P, Open-market purchase Tecogen Inc.TGEN 546, acquired Open Form 4 filing 0001537435-23-000064
2023-06-07 P, Open-market purchase Tecogen Inc.TGEN 2 lines 9,986, acquired Open Form 4 filing 0001537435-23-000059
2023-06-06 P, Open-market purchase Tecogen Inc.TGEN 7,000, acquired Open Form 4 filing 0001537435-23-000057
2023-06-06 P, Open-market purchase Tecogen Inc.TGEN 1,140, acquired Open Form 4 filing 0001537435-23-000055
2023-06-02 P, Open-market purchase Tecogen Inc.TGEN 1,090, acquired Open Form 4 filing 0001537435-23-000053
2023-05-26 P, Open-market purchase Tecogen Inc.TGEN 1,170, acquired Open Form 4 filing 0001537435-23-000051
2023-05-25 P, Open-market purchase Tecogen Inc.TGEN 1,170, acquired Open Form 4 filing 0001537435-23-000049
2023-05-23 P, Open-market purchase Tecogen Inc.TGEN 1,170, acquired Open Form 4 filing 0001537435-23-000049
2023-05-15 P, Open-market purchase Tecogen Inc.TGEN 3,645, acquired Open Form 4 filing 0001537435-23-000047
2023-03-28 P, Open-market purchase Tecogen Inc.TGEN 17,700, acquired Open Form 4 filing 0001537435-23-000029
2023-03-27 P, Open-market purchase Tecogen Inc.TGEN 11,393, acquired Open Form 4 filing 0001537435-23-000027
2023-03-24 P, Open-market purchase Tecogen Inc.TGEN 45,995, acquired Open Form 4 filing 0001537435-23-000023
2023-03-21 P, Open-market purchase Tecogen Inc.TGEN 8,800, acquired Open Form 4 filing 0001537435-23-000015
2023-03-20 P, Open-market purchase Tecogen Inc.TGEN 8,400, acquired Open Form 4 filing 0001537435-23-000011
2022-10-19 P, Open-market purchase Tecogen Inc.TGEN 5,000, acquired Open Form 4 filing 0001537435-22-000123
2022-10-17 P, Open-market purchase Tecogen Inc.TGEN 4,898, acquired Open Form 4 filing 0001537435-22-000121
2022-10-11 P, Open-market purchase Tecogen Inc.TGEN 4,800, acquired Open Form 4 filing 0001537435-22-000119
2022-10-10 P, Open-market purchase Tecogen Inc.TGEN 4,800, acquired Open Form 4 filing 0001537435-22-000119
2022-09-08 P, Open-market purchase Tecogen Inc.TGEN 5,828, acquired Open Form 4 filing 0001537435-22-000112
2022-09-02 P, Open-market purchase Tecogen Inc.TGEN 5,500, acquired Open Form 4 filing 0001537435-22-000110
2022-09-01 P, Open-market purchase Tecogen Inc.TGEN 5,498, acquired Open Form 4 filing 0001537435-22-000110
2022-08-31 P, Open-market purchase Tecogen Inc.TGEN 5,500, acquired Open Form 4 filing 0001537435-22-000110
2022-08-30 P, Open-market purchase Tecogen Inc.TGEN 5,700, acquired Open Form 4 filing 0001537435-22-000108
2022-08-29 P, Open-market purchase Tecogen Inc.TGEN 6,168, acquired Open Form 4 filing 0001537435-22-000108
2022-08-26 P, Open-market purchase Tecogen Inc.TGEN 6,187, acquired Open Form 4 filing 0001537435-22-000108
2022-08-25 P, Open-market purchase Tecogen Inc.TGEN 6,250, acquired Open Form 4 filing 0001537435-22-000106
2022-08-24 P, Open-market purchase Tecogen Inc.TGEN 2 lines 6,167, acquired Open Form 4 filing 0001537435-22-000106
2022-08-23 P, Open-market purchase Tecogen Inc.TGEN 6,250, acquired Open Form 4 filing 0001537435-22-000106
2022-08-22 P, Open-market purchase Tecogen Inc.TGEN 6,050, acquired Open Form 4 filing 0001537435-22-000104
2020-04-23 P, Open-market purchase Tecogen Inc.TGEN 5 lines 25,093, acquired Open Form 4 filing 0001537435-20-000036
2016-05-12 P, Open-market purchase Eurosite Power Inc.EUSP 1,000,000, acquired Open Form 4 filing 0001528103-16-000128
2016-05-12 P, Open-market purchase Eurosite Power Inc.EUSP 1,000,000, acquired Open Form 4 filing 0001528103-16-000111
2016-05-04 S, Open-market sale Eurosite Power Inc.EUSP Not reported Open Form 4 filing 0001528103-16-000098
2016-04-22 P, Open-market purchase Tecogen Inc.TGEN Not reported Open Form 4 filing 0001537435-16-000107
2016-01-07 P, Open-market purchase Eurosite Power Inc.EUSP 2,700, acquired Open Form 4 filing 0001528103-16-000074
2015-12-29 P, Open-market purchase Eurosite Power Inc.EUSP 3,600, acquired Open Form 4 filing 0001528103-15-000069
2015-12-22 P, Open-market purchase Eurosite Power Inc.EUSP 4,500, acquired Open Form 4 filing 0001528103-15-000068
2015-12-09 P, Open-market purchase American DG Energy IncADGE 21,126, acquired Open Form 4 filing 0001378706-15-000162
2015-12-08 P, Open-market purchase American DG Energy IncADGE 12,499, acquired Open Form 4 filing 0001378706-15-000144
2015-12-03 P, Open-market purchase American DG Energy IncADGE 1,450, acquired Open Form 4 filing 0001378706-15-000134
2015-12-02 P, Open-market purchase American DG Energy IncADGE 822, acquired Open Form 4 filing 0001378706-15-000134
2015-11-30 P, Open-market purchase Eurosite Power Inc.EUSP 1,790, acquired Open Form 4 filing 0001528103-15-000067
2015-11-30 P, Open-market purchase American DG Energy IncADGE 1,515, acquired Open Form 4 filing 0001378706-15-000121
2015-11-27 P, Open-market purchase American DG Energy IncADGE 1,990, acquired Open Form 4 filing 0001378706-15-000111

This column is intentionally blank

No transaction line is stored for this reporting owner, though the catalog holds filings naming them. That happens when the filings report only holdings or only positions the store does not carry, and when a parse failed; each filing page states its own parse status.

Codes on this page
P, Open-market purchase
Open-market purchase
S, Open-market sale
Open-market sale
Relationships on this page
D, Director
Director
%, Ten percent owner
Ten percent owner

Every value is as reported on the Form 4, totalled to the dollar. Share counts, the price per share and the full list of reporting owners are on each filing's own page, which every row here opens. A row marked n lines adds up that many filed lines of one filing, on one day, on one side of the market; a filing whose lines fall across two pages is left as its lines on both, so no total here is ever short.

What this insider's stored lines contain

Exact counts over every stored line for this entity. This is a statement of composition, not a filter: the only filter this page offers is the open-market one above, because that is the only one an index serves today.

  • Open-market purchase 181
  • Open-market sale 1
  • Option exercise 0
  • Grant or award 0
  • Tax withholding 0
  • Disposition to the issuer 0
  • In-the-money option exercise 0

How to cite this page

ebomi catalog. HATSOPOULOS JOHN, insider transactions. Retrieved 2026-08-24 from https://ebomi.com/insider/0001274775

Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6

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