Tecogen INC.
SEC CIK 1537435 · TGEN · last insider filing 2026-06-30
Directors (from insider filings)
| Name | Capacity as filed | Filings |
|---|---|---|
| Albertine John M | Director | filed 2022 - 2026 |
| Lewis Earl | Director | filed 2014 - 2026 |
| Ghoniem Ahmed | Director | filed 2013 - 2026 |
| Galiteva Angelina | Director | filed 2013 - 2026 |
| Hirsch Susan B | Director | filed 2023 - 2026 |
| Rangesh Abinand | Director · Chief Financial Officer | filed 2022 - 2026 |
| Hatsopoulos John | Director · Co-Chief Executive Officer | filed 2013 - 2026 |
| Holubow Fred | Director | filed 2020 - 2023 |
| Jenkins Ralph | Director | filed 2022 - 2022 |
| Benjamin Locke M. | Director · Co-CEO | filed 2014 - 2022 |
| Petersen Deanna M | Director | filed 2018 - 2020 |
| Maxwell Charlest | Director | filed 2013 - 2017 |
| Davidson Keith | Director | filed 2016 - 2016 |
| Hatsopoulos George N | Director | filed 2013 - 2016 |
| Aoun Joseph E | Director | filed 2013 - 2014 |
Officers (from insider filings)
| Name | Title as filed | Filings |
|---|---|---|
| Deschenes Roger P. | CAO | filed 2025 - 2026 |
| Panora Robert | COO and President | filed 2013 - 2026 |
| Whiting John Kimball IV | General Counsel & Secretary | filed 2020 - 2026 |
| Lafaille Stephen | VP of Business Development | filed 2025 - 2026 |
| Brown Bonnie Jean | Chief Accounting Officer | filed 2013 - 2018 |
| Garrison David A | CFO, Treasurer and Secretary | filed 2014 - 2016 |
About this record
From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.
Source: SEC Insider Transactions Data Sets (Forms 3/4/5), US Federal Government public domain.