Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2023-06-02 Purchase | 2023-06-05 08:41 am | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 1,000 | $1.09 | $1,090 | 421,631 (Direct) | View |
2023-05-26 Purchase | 2023-05-26 3:38 pm | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 1,000 | $1.17 | $1,170 | 420,631 (Direct) | View |
2023-05-23 Purchase | 2023-05-26 09:17 am | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 2,000 | $1.17 | $2,340 | 419,631 (Direct) | View |
2023-05-15 Purchase | 2023-05-16 6:11 pm | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 3,649 | $0.999 | $3,645 | 417,631 (Direct) | View |
2023-05-15 Purchase | 2023-05-16 5:59 pm | TECOGEN INC. | TGEN | LEWIS EARL R Director | 10,000 | $0.96 | $9,600 | 493,183 (Direct) | View |
2023-03-24 Purchase | 2023-03-30 1:41 pm | TECOGEN INC. | TGEN | LEWIS EARL R Director | 35,000 | $1.0856 | $37,996 | 483,183 (Direct) | View |
2023-03-28 Purchase | 2023-03-29 09:27 am | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 17,700 | $1 | $17,700 | 413,982 (Direct) | View |
2023-03-27 Purchase | 2023-03-27 5:08 pm | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 11,419 | $0.9977 | $11,393 | 396,282 (Direct) | View |
2023-03-20 Purchase | 2023-03-27 11:33 am | TECOGEN INC. | TGEN | Rangesh Abinand Chief Executive Officer | 1,800 | $0.87537 | $1,576 | 7,800 (Direct) | View |
2023-03-24 Purchase | 2023-03-24 4:09 pm | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 50,000 | $0.9199 | $45,995 | 384,863 (Direct) | View |
2023-03-22 Purchase | 2023-03-23 11:50 am | TECOGEN INC. | TGEN | LEWIS EARL R Director | 5,000 | $0.87 | $4,350 | 448,183 (Direct) | View |
2023-03-21 Purchase | 2023-03-21 4:18 pm | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 10,000 | $0.88 | $8,800 | 334,863 (Direct) | View |
2023-03-20 Purchase | 2023-03-21 4:10 pm | TECOGEN INC. | TGEN | LEWIS EARL R Director | 15,000 | $0.89 | $13,350 | 443,183 (Direct) | View |
2023-03-20 Purchase | 2023-03-21 11:08 am | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 10,000 | $0.84 | $8,400 | 324,863 (Direct) | View |
2022-10-19 Purchase | 2022-10-19 4:39 pm | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 5,000 | $1 | $5,000 | 314,863 (Direct) | View |
2022-10-17 Purchase | 2022-10-18 4:10 pm | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 5,000 | $0.9795 | $4,898 | 309,863 (Direct) | View |
2022-10-10 Purchase | 2022-10-12 10:11 am | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 10,000 | $0.96 | $9,600 | 304,863 (Direct) | View |
2022-09-28 Purchase | 2022-09-29 4:55 pm | TECOGEN INC. | TGEN | LEWIS EARL R Director | 13,183 | $0.95759 | $12,624 | 428,183 (Direct) | View |
2022-09-08 Purchase | 2022-09-12 10:35 am | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 5,000 | $1.1655 | $5,828 | 294,863 (Direct) | View |
2022-08-31 Purchase | 2022-09-02 3:52 pm | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 15,000 | $1.0999 | $16,498 | 289,863 (Direct) | View |
2022-08-26 Purchase | 2022-08-30 4:39 pm | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 15,000 | $1.2036 | $18,055 | 274,863 (Direct) | View |
2022-08-23 Purchase | 2022-08-25 2:49 pm | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 15,000 | $1.2444 | $18,667 | 259,863 (Direct) | View |
2022-08-22 Purchase | 2022-08-23 2:09 pm | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 5,000 | $1.21 | $6,050 | 244,863 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
Ownership | 2022-12-19 09:39 am | 2023-12-07 2032-12-07 | TECOGEN INC. | TGEN | ALBERTINE JOHN M Director | 0 | $0 | 100,000 (Direct) | View |
2022-06-23 Option Award | 2022-06-28 6:32 pm | 2023-06-23 2032-06-23 | TECOGEN INC. | TGEN | Jenkins Ralph Director | 25,000 | $1.2 | 150,000 (Direct) | View |
2022-06-23 Option Award | 2022-06-28 6:30 pm | 2023-06-23 2032-06-23 | TECOGEN INC. | TGEN | HOLUBOW FRED Director | 25,000 | $1.2 | 150,000 (Direct) | View |
2022-06-23 Option Award | 2022-06-28 6:28 pm | 2023-06-23 2032-06-23 | TECOGEN INC. | TGEN | LEWIS EARL R Director | 25,000 | $1.2 | 150,000 (Direct) | View |
2022-06-23 Option Award | 2022-06-28 6:26 pm | 2023-06-23 2032-06-23 | TECOGEN INC. | TGEN | GHONIEM AHMED Director | 25,000 | $1.2 | 162,723 (Direct) | View |
2022-06-23 Option Award | 2022-06-28 6:24 pm | 2023-06-23 2032-06-23 | TECOGEN INC. | TGEN | GALITEVA ANGELINA Director | 25,000 | $1.2 | 150,000 (Direct) | View |
Ownership(A) | 2022-05-06 5:01 pm | N/A N/A | TECOGEN INC. | TGEN | Whiting John Kimball IV General Counsel & Secretary | 0 | $0 | 363,136 (Direct) | View |
Ownership(A) | 2022-05-06 4:59 pm | N/A N/A | TECOGEN INC. | TGEN | Rangesh Abinand Chief Financial Officer | 0 | $0 | 136,000 (Direct) | View |
Ownership(A) | 2022-05-06 4:53 pm | N/A 2026-04-29 | TECOGEN INC. | TGEN | PANORA ROBERT A COO and President | 0 | $0 | 265,223 (Direct) | View |
Ownership(A) | 2022-05-06 4:49 pm | N/A N/A | TECOGEN INC. | TGEN | Benjamin Locke M. CEO | 0 | $0 | 812,718 (Direct) | View |
Ownership(A) | 2022-05-06 4:44 pm | N/A N/A | TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director | 0 | $0 | 328,148 (Direct) | View |
Ownership | 2022-05-06 4:39 pm | N/A N/A | TECOGEN INC. | TGEN | Pacheco Ann Marie Brown Trustee 10% Owner | 0 | $0 | 3,714,704 (Direct) | View |
Ownership(A) | 2022-03-16 2:27 pm | N/A N/A | TECOGEN INC. | TGEN | Benjamin Locke M. CEO | 0 | $0 | 812,718 (Direct) | View |
Ownership | 2022-03-16 11:11 am | N/A N/A | TECOGEN INC. | TGEN | Rangesh Abinand Chief Financial Officer | 0 | $0 | 136,000 (Direct) | View |
Ownership | 2022-03-16 11:09 am | 2022-06-08 2031-06-08 | TECOGEN INC. | TGEN | Jenkins Ralph Director | 0 | $0 | 100,000 (Direct) | View |
Ownership | 2022-03-11 5:04 pm | 2021-07-09 2030-07-09 | TECOGEN INC. | TGEN | HOLUBOW FRED Director | 0 | $0 | 125,000 (Direct) | View |
Ownership | 2022-03-11 5:03 pm | 2016-05-12 2026-05-12 | TECOGEN INC. | TGEN | GHONIEM AHMED Director | 0 | $0 | 137,723 (Direct) | View |