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
2024-09-27 P, Open-market purchase Tecogen Inc.TGEN 8,380, acquired Open Form 4 filing 0001537435-24-000114
2024-09-25 P, Open-market purchase Tecogen Inc.TGEN 8,597, acquired Open Form 4 filing 0001537435-24-000112
2024-08-19 P, Open-market purchase Tecogen Inc.TGEN 8,950, acquired Open Form 4 filing 0001537435-24-000108
2024-07-10 P, Open-market purchase Tecogen Inc.TGEN 14,603, acquired Open Form 4 filing 0001537435-24-000090
2024-05-29 P, Open-market purchase Tecogen Inc.TGEN 8,000, acquired Open Form 4 filing 0001537435-24-000073
2024-05-28 P, Open-market purchase Tecogen Inc.TGEN 1,012, acquired Open Form 4 filing 0001537435-24-000075
2024-05-24 P, Open-market purchase Tecogen Inc.TGEN 6,988, acquired Open Form 4 filing 0001537435-24-000071
2024-05-22 P, Open-market purchase Tecogen Inc.TGEN 2,528, acquired Open Form 4 filing 0001537435-24-000071
2024-05-21 P, Open-market purchase Tecogen Inc.TGEN 10,902, acquired Open Form 4 filing 0001537435-24-000069
2024-05-16 P, Open-market purchase Tecogen Inc.TGEN 2,248, acquired Open Form 4 filing 0001537435-24-000067
2024-05-15 P, Open-market purchase Tecogen Inc.TGEN 7,400, acquired Open Form 4 filing 0001537435-24-000065
2024-04-24 P, Open-market purchase Tecogen Inc.TGEN 3,354, acquired Open Form 4 filing 0001537435-24-000048
2024-04-23 P, Open-market purchase Tecogen Inc.TGEN 2 lines 4,103, acquired Open Form 4 filing 0001537435-24-000046
2024-04-16 P, Open-market purchase Tecogen Inc.TGEN 679, acquired Open Form 4 filing 0001537435-24-000042
2024-04-15 P, Open-market purchase Tecogen Inc.TGEN 700, acquired Open Form 4 filing 0001537435-24-000038
2024-04-12 P, Open-market purchase Tecogen Inc.TGEN 700, acquired Open Form 4 filing 0001537435-24-000036
2024-04-11 P, Open-market purchase Tecogen Inc.TGEN 700, acquired Open Form 4 filing 0001537435-24-000030
2024-04-09 P, Open-market purchase Tecogen Inc.TGEN 700, acquired Open Form 4 filing 0001537435-24-000028
2024-04-08 P, Open-market purchase Tecogen Inc.TGEN 700, acquired Open Form 4 filing 0001537435-24-000026
2024-04-01 P, Open-market purchase Tecogen Inc.TGEN 2 lines 3,928, acquired Open Form 4 filing 0001537435-24-000024
2024-03-28 P, Open-market purchase Tecogen Inc.TGEN 1,672, acquired Open Form 4 filing 0001537435-24-000024
2024-03-27 P, Open-market purchase Tecogen Inc.TGEN 1,400, acquired Open Form 4 filing 0001537435-24-000024
2024-01-22 P, Open-market purchase Tecogen Inc.TGEN 7,700, acquired Open Form 4 filing 0001537435-24-000008
2024-01-18 P, Open-market purchase Tecogen Inc.TGEN 7,346, acquired Open Form 4 filing 0001537435-24-000006
2024-01-16 P, Open-market purchase Tecogen Inc.TGEN 73,460, acquired Open Form 4 filing 0001537435-24-000004
2023-12-27 P, Open-market purchase Tecogen Inc.TGEN 20,000, acquired Open Form 4 filing 0001537435-23-000163
2023-12-22 P, Open-market purchase Tecogen Inc.TGEN 20,000, acquired Open Form 4 filing 0001537435-23-000161
2023-12-14 P, Open-market purchase Tecogen Inc.TGEN 3 lines 44,675, acquired Open Form 4 filing 0001537435-23-000159
2023-11-20 P, Open-market purchase Tecogen Inc.TGEN 3,380, acquired Open Form 4 filing 0001537435-23-000154
2023-11-17 P, Open-market purchase Tecogen Inc.TGEN 38,870, acquired Open Form 4 filing 0001537435-23-000152
2023-11-14 P, Open-market purchase Tecogen Inc.TGEN 85, acquired Open Form 4 filing 0001537435-23-000150
2023-10-17 P, Open-market purchase Tecogen Inc.TGEN 40,000, acquired Open Form 4 filing 0001537435-23-000137
2023-10-12 P, Open-market purchase Tecogen Inc.TGEN 40,000, acquired Open Form 4 filing 0001537435-23-000135
2023-09-29 P, Open-market purchase Tecogen Inc.TGEN 1,960, acquired Open Form 4 filing 0001537435-23-000126
2023-09-27 P, Open-market purchase Tecogen Inc.TGEN 1,256, acquired Open Form 4 filing 0001537435-23-000124
2023-09-26 P, Open-market purchase Tecogen Inc.TGEN 1,840, acquired Open Form 4 filing 0001537435-23-000118
2023-09-19 P, Open-market purchase Tecogen Inc.TGEN 4,550, acquired Open Form 4 filing 0001537435-23-000114
2023-09-07 P, Open-market purchase Tecogen Inc.TGEN 200, acquired Open Form 4 filing 0001537435-23-000110
2023-09-05 P, Open-market purchase Tecogen Inc.TGEN 9,700, acquired Open Form 4 filing 0001537435-23-000106
2023-08-22 P, Open-market purchase Tecogen Inc.TGEN 5,600, acquired Open Form 4 filing 0001537435-23-000102
2023-08-17 P, Open-market purchase Tecogen Inc.TGEN 4,857, acquired Open Form 4 filing 0001537435-23-000100
2023-08-15 P, Open-market purchase Tecogen Inc.TGEN 5,000, acquired Open Form 4 filing 0001537435-23-000100
2023-06-26 P, Open-market purchase Tecogen Inc.TGEN 960, acquired Open Form 4 filing 0001537435-23-000085
2023-06-20 P, Open-market purchase Tecogen Inc.TGEN 3,000, acquired Open Form 4 filing 0001537435-23-000083
2023-06-15 P, Open-market purchase Tecogen Inc.TGEN 5,550, acquired Open Form 4 filing 0001537435-23-000079
2023-06-12 P, Open-market purchase Tecogen Inc.TGEN 5,600, acquired Open Form 4 filing 0001537435-23-000066

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
Relationships on this page
D, Director
Director

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 2026-08-22 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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