TGEN
TECOGEN INC.Company with tickers: TGEN
CIK
1537435
CUSIP
87876P201
Shares Outstanding
29,855,229
Price
Holdings
Short Volume
Short Interest
Fails to Deliver
SEC Filings
Earnings Calls
Insider Trading
Congress Trades
| Date | Insider | Role | Type | Shares |
|---|---|---|---|---|
| 2026-04-13 | Hirsch Susan B | Director | Buy | 5,000 |
| 2026-03-27 | Hirsch Susan B | Director | Buy | 10,000 |
| 2026-03-27 | Lewis Earl | Director | Buy | 5,000 |
| 2026-03-26 | Lewis Earl | Director | Buy | 5,000 |
| 2026-03-23 | Whiting John Kimball IV | General Counsel & Secretary | Buy | 10,000 |
| 2026-03-20 | Deschenes Roger P. | CAO | Buy | 10,000 |
| 2026-03-20 | Rangesh Abinand | Director, Chief Executive Officer | Buy | 3,000 |
| 2026-03-20 | Hatsopoulos John | Director | Convert | 50,000 |
| 2026-03-20 | Hatsopoulos John | Director | Convert | 50,000 |
| 2025-07-24 | Rangesh Abinand | Director, Chief Executive Officer | Award | 24,075 |
| 2025-07-24 | Rangesh Abinand | Director, Chief Executive Officer | Award | 53,892 |
| 2025-07-24 | Lewis Earl | Director | Award | 25,000 |
| 2025-07-24 | ALBERTINE JOHN M | Director | Award | 25,000 |
| 2025-07-24 | Lafaille Stephen | VP of Business Development | Award | 24,075 |
| 2025-07-24 | Lafaille Stephen | VP of Business Development | Award | 11,976 |
| 2025-07-24 | Whiting John Kimball IV | General Counsel & Secretary | Award | 24,075 |
| 2025-07-24 | Whiting John Kimball IV | General Counsel & Secretary | Award | 11,976 |
| 2025-07-24 | Deschenes Roger P. | CAO | Award | 12,063 |
| 2025-07-24 | Deschenes Roger P. | CAO | Award | 17,964 |
| 2025-07-24 | Hirsch Susan B | Director | Award | 25,000 |
| 2025-07-24 | GHONIEM AHMED | Director | Award | 25,000 |
| 2025-07-24 | GALITEVA ANGELINA | Director | Award | 25,000 |
| 2025-06-23 | Lafaille Stephen | VP of Business Development | Exercise | 10,000 |
| 2025-06-23 | Lafaille Stephen | VP of Business Development | Sell | 10,000 |
| 2025-06-23 | Lafaille Stephen | VP of Business Development | Exercise | 10,000 |
| 2025-06-16 | PANORA ROBERT A | COO and President | Other | 100,000 |
| 2025-06-16 | PANORA ROBERT A | COO and President | Exercise | 12,723 |
| 2025-06-06 | Lafaille Stephen | VP of Business Development | Sell | 25,000 |
| 2025-06-06 | Lafaille Stephen | VP of Business Development | Exercise | 25,000 |
| 2025-06-06 | Lafaille Stephen | VP of Business Development | Exercise | 25,000 |
| 2025-06-04 | Lafaille Stephen | VP of Business Development | Sell | 15,000 |
| 2025-06-04 | Lafaille Stephen | VP of Business Development | Exercise | 15,000 |
| 2025-06-04 | Lafaille Stephen | VP of Business Development | Exercise | 15,000 |
| 2025-06-03 | Lafaille Stephen | VP of Business Development | Exercise | 10,000 |
| 2025-06-03 | Lafaille Stephen | VP of Business Development | Exercise | 10,000 |
| 2025-06-03 | Lafaille Stephen | VP of Business Development | Sell | 10,000 |
| 2025-05-27 | PANORA ROBERT A | COO and President | Exercise | 70,000 |
| 2025-05-06 | Lewis Earl | Director | Exercise | 15,000 |
| 2025-05-01 | Lewis Earl | Director | Other | 240,256 |
| 2025-03-03 | Lafaille Stephen | VP of Business Development | Buy | 400 |
| 2024-11-22 | Lewis Earl | Director | Buy | 100,000 |
| 2024-09-27 | Hatsopoulos John | Director | Buy | 10,000 |
| 2024-09-25 | Hatsopoulos John | Director | Buy | 10,000 |
| 2024-08-19 | Hatsopoulos John | Director | Buy | 10,000 |
| 2024-07-15 | Lewis Earl | Director | Buy | 10,000 |
| 2024-07-15 | Lewis Earl | Director | Buy | 10,000 |
| 2024-07-10 | Hatsopoulos John | Director | Buy | 22,466 |
| 2024-06-06 | ALBERTINE JOHN M | Director | Award | 25,000 |
| 2024-06-06 | Lewis Earl | Director | Award | 25,000 |
| 2024-06-06 | GHONIEM AHMED | Director | Award | 25,000 |
| 2024-06-06 | GALITEVA ANGELINA | Director | Award | 25,000 |
| 2024-06-06 | Hirsch Susan B | Director | Award | 25,000 |
| 2024-05-29 | Hatsopoulos John | Director | Buy | 10,000 |
| 2024-05-28 | Hatsopoulos John | Director | Buy | 1,265 |
| 2024-05-24 | Hatsopoulos John | Director | Buy | 8,735 |
| 2024-05-22 | Hatsopoulos John | Director | Buy | 3,200 |
| 2024-05-21 | Hatsopoulos John | Director | Buy | 13,800 |
| 2024-05-16 | Hatsopoulos John | Director | Buy | 3,000 |
| 2024-05-15 | Hatsopoulos John | Director | Buy | 10,000 |
| 2024-05-01 | Lewis Earl | Director | Buy | 5,000 |
| 2024-04-24 | Lewis Earl | Director | Buy | 10,000 |
| 2024-04-24 | Hatsopoulos John | Director | Buy | 5,000 |
| 2024-04-23 | Hatsopoulos John | Director | Buy | 5,000 |
| 2024-04-23 | Lafaille Stephen | VP of Business Development | Other | 0 |
| 2024-04-23 | Lafaille Stephen | VP of Business Development | Other | 400 |
| 2024-04-23 | Deschenes Roger P. | CAO | Other | 0 |
| 2024-04-23 | Deschenes Roger P. | CAO | Other | 24,998 |
| 2024-04-23 | Deschenes Roger P. | CAO | Other | 0 |
| 2024-04-16 | Hatsopoulos John | Director | Buy | 1,000 |
| 2024-04-15 | Hatsopoulos John | Director | Buy | 1,000 |
| 2024-04-12 | Hatsopoulos John | Director | Buy | 1,000 |
| 2024-04-11 | Hatsopoulos John | Director | Buy | 1,000 |
| 2024-04-09 | Hatsopoulos John | Director | Buy | 1,000 |
| 2024-04-08 | Hatsopoulos John | Director | Buy | 1,000 |
| 2024-04-01 | Hatsopoulos John | Director | Buy | 612 |
| 2024-03-28 | Hatsopoulos John | Director | Buy | 2,388 |
| 2024-03-27 | Hatsopoulos John | Director | Buy | 2,000 |
| 2024-01-24 | Lewis Earl | Director | Buy | 9,152 |
| 2024-01-23 | Lewis Earl | Director | Buy | 10,000 |
| 2024-01-22 | Hatsopoulos John | Director | Buy | 10,000 |
| 2024-01-18 | Hatsopoulos John | Director | Buy | 10,000 |
| 2024-01-16 | Hatsopoulos John | Director | Buy | 100,000 |
| 2023-12-27 | Hatsopoulos John | Director | Buy | 25,000 |
| 2023-12-22 | Hatsopoulos John | Director | Buy | 25,000 |
| 2023-12-14 | Hatsopoulos John | Director | Buy | 1,000 |
| 2023-11-20 | Hatsopoulos John | Director | Buy | 4,000 |
| 2023-11-17 | Hatsopoulos John | Director | Buy | 46,000 |
| 2023-11-14 | Hatsopoulos John | Director | Buy | 100 |
| 2023-10-19 | Hirsch Susan B | Director | Buy | 5,000 |
| 2023-10-18 | Lewis Earl | Director | Buy | 25,000 |
| 2023-10-17 | Hatsopoulos John | Director | Buy | 50,000 |
| 2023-10-12 | Hatsopoulos John | Director | Buy | 50,000 |
| 2023-10-09 | Lewis Earl | Director | Buy | 2,000 |
| 2023-10-09 | Lewis Earl | Director | Buy | 2,000 |
| 2023-09-29 | Hatsopoulos John | Director | Buy | 2,000 |
| 2023-09-27 | Hatsopoulos John | Director | Buy | 1,380 |
| 2023-09-26 | Hatsopoulos John | Director | Buy | 2,000 |
| 2023-09-22 | Hirsch Susan B | Director | Other | 245,416 |
| 2023-09-22 | Hirsch Susan B | Director | Other | 0 |
| 2023-09-20 | Whiting John Kimball IV | General Counsel & Secretary | Award | 37,500 |