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 |
2025-06-03 Sale(A) |
2025-07-14 09:02 am |
TECOGEN INC. | TGEN | PANORA ROBERT A COO and President |
102,700 | $5.3627 | $550,752 | 162,523 (Direct) |
View |
2025-03-03 Purchase |
2025-06-24 5:41 pm |
TECOGEN INC. | TGEN | Lafaille Stephen VP of Business Development |
400 | $2.5 | $1,000 | 110,400 (Direct) |
View |
2025-06-03 Sale |
2025-06-24 5:41 pm |
TECOGEN INC. | TGEN | Lafaille Stephen VP of Business Development |
60,000 | $5.7633 | $345,800 | 110,400 (Direct) |
View |
2023-10-09 Purchase(A) |
2025-03-25 5:11 pm |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
2,000 | $0.8 | $1,600 | 627,000 (Direct) |
View |
2024-07-15 Purchase(A) |
2025-03-25 5:09 pm |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
10,000 | $0.68 | $6,800 | 625,000 (Direct) |
View |
2024-11-22 Purchase |
2024-12-06 09:14 am |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
100,000 | $0.71 | $71,000 | 737,000 (Direct) |
View |
2023-10-09 Purchase |
2024-12-06 09:12 am |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
2,000 | $0.8 | $1,600 | 637,000 (Direct) |
View |
2024-09-27 Purchase |
2024-09-27 12:55 pm |
TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director |
10,000 | $0.838 | $8,380 | 988,951 (Direct) |
View |
2024-09-25 Purchase |
2024-09-25 4:29 pm |
TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director |
10,000 | $0.8597 | $8,597 | 978,951 (Direct) |
View |
2024-08-19 Purchase |
2024-08-20 10:18 am |
TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director |
10,000 | $0.895 | $8,950 | 968,951 (Direct) |
View |
2024-07-15 Purchase |
2024-07-17 4:38 pm |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
10,000 | $0.68 | $6,800 | 635,000 (Indirect) |
View |
2024-07-15 Purchase |
2024-07-15 12:09 pm |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
10,000 | $0.68 | $6,800 | 625,000 (Direct) |
View |
2024-07-10 Purchase |
2024-07-12 4:44 pm |
TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director |
22,466 | $0.65 | $14,603 | 958,951 (Direct) |
View |
2024-05-28 Purchase |
2024-05-29 3:25 pm |
TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director |
1,265 | $0.8 | $1,012 | 936,485 (Direct) |
View |
2024-05-29 Purchase |
2024-05-29 3:03 pm |
TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director |
10,000 | $0.8 | $8,000 | 935,220 (Direct) |
View |
2024-05-22 Purchase |
2024-05-28 10:12 am |
TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director |
11,935 | $0.79732 | $9,516 | 925,220 (Direct) |
View |
2024-05-21 Purchase |
2024-05-22 2:22 pm |
TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director |
13,800 | $0.79 | $10,902 | 913,285 (Direct) |
View |
2024-05-16 Purchase |
2024-05-17 09:15 am |
TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director |
3,000 | $0.7493 | $2,248 | 899,485 (Direct) |
View |
2024-05-15 Purchase |
2024-05-16 09:18 am |
TECOGEN INC. | TGEN | HATSOPOULOS JOHN Director |
10,000 | $0.74 | $7,400 | 896,485 (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 |
2025-07-24 Option Award |
2025-07-28 12:40 pm |
2026-07-24 2035-07-24 |
TECOGEN INC. | TGEN | ALBERTINE JOHN M Director |
25,000 | $8.35 | 175,000 (Direct) |
View |
2025-07-24 Option Award |
2025-07-28 11:12 am |
N/A N/A |
TECOGEN INC. | TGEN | Lafaille Stephen VP of Business Development |
11,976 | $0 | 85,313 (Direct) |
View |
2025-07-24 Option Award |
2025-07-28 11:12 am |
2026-07-24 2035-07-24 |
TECOGEN INC. | TGEN | Lafaille Stephen VP of Business Development |
24,075 | $8.35 | 85,313 (Direct) |
View |
2025-07-24 Option Award |
2025-07-28 11:09 am |
N/A N/A |
TECOGEN INC. | TGEN | Whiting John Kimball IV General Counsel & Secretary |
11,976 | $0 | 436,687 (Direct) |
View |
2025-07-24 Option Award |
2025-07-28 11:09 am |
2026-07-24 2035-07-24 |
TECOGEN INC. | TGEN | Whiting John Kimball IV General Counsel & Secretary |
24,075 | $8.35 | 436,687 (Direct) |
View |
2025-07-24 Option Award |
2025-07-28 11:07 am |
N/A N/A |
TECOGEN INC. | TGEN | Deschenes Roger P. CAO |
17,964 | $0 | 195,025 (Direct) |
View |
2025-07-24 Option Award |
2025-07-28 11:07 am |
2025-07-24 2035-07-24 |
TECOGEN INC. | TGEN | Deschenes Roger P. CAO |
12,063 | $8.35 | 195,025 (Direct) |
View |
2025-07-24 Option Award |
2025-07-28 11:04 am |
N/A N/A |
TECOGEN INC. | TGEN | Rangesh Abinand Chief Executive Officer |
53,892 | $0 | 664,391 (Direct) |
View |
2025-07-24 Option Award |
2025-07-28 11:04 am |
2026-07-24 2035-07-24 |
TECOGEN INC. | TGEN | Rangesh Abinand Chief Executive Officer |
36,123 | $8.35 | 664,391 (Direct) |
View |
2025-07-24 Option Award |
2025-07-28 11:02 am |
2026-07-24 2035-07-24 |
TECOGEN INC. | TGEN | Hirsch Susan B Director |
25,000 | $8.35 | 150,000 (Direct) |
View |
2025-07-24 Option Award |
2025-07-28 10:59 am |
2026-07-24 2035-07-24 |
TECOGEN INC. | TGEN | GHONIEM AHMED Director |
25,000 | $8.35 | 237,723 (Direct) |
View |
2025-07-24 Option Award |
2025-07-28 10:57 am |
2026-07-24 2035-07-24 |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
25,000 | $8.35 | 91,250 (Direct) |
View |
2025-07-24 Option Award |
2025-07-28 10:55 am |
2026-07-24 2035-07-25 |
TECOGEN INC. | TGEN | GALITEVA ANGELINA Director |
25,000 | $8.35 | 225,000 (Direct) |
View |
2025-06-16 Exercise(A) |
2025-07-14 09:02 am |
N/A 2030-07-09 |
TECOGEN INC. | TGEN | PANORA ROBERT A COO and President |
30,000 | $0.71 | 162,523 (Direct) |
View |
2025-06-16 Exercise(A) |
2025-07-14 09:02 am |
2016-05-12 2026-05-12 |
TECOGEN INC. | TGEN | PANORA ROBERT A COO and President |
12,723 | $0.786 | 162,523 (Direct) |
View |
2025-06-16 Exercise(A) |
2025-07-14 09:02 am |
2023-01-21 2032-01-21 |
TECOGEN INC. | TGEN | PANORA ROBERT A COO and President |
52,500 | $1.1 | 162,523 (Direct) |
View |
2025-05-27 Exercise(A) |
2025-07-14 09:00 am |
N/A 2030-07-09 |
TECOGEN INC. | TGEN | PANORA ROBERT A COO and President |
70,000 | $0.71 | 200,000 (Direct) |
View |
2025-06-06 Exercise |
2025-06-24 5:41 pm |
2023-01-21 2032-01-21 |
TECOGEN INC. | TGEN | Lafaille Stephen VP of Business Development |
35,000 | $1.1 | 110,400 (Direct) |
View |
2025-06-03 Exercise |
2025-06-24 5:41 pm |
N/A 2030-07-09 |
TECOGEN INC. | TGEN | Lafaille Stephen VP of Business Development |
25,000 | $0.71 | 110,400 (Direct) |
View |
Ownership |
2025-06-24 12:59 pm |
N/A N/A |
TECOGEN INC. | TGEN | Lafaille Stephen VP of Business Development |
0 | $0 | 109,262 (Direct) |
View |
Ownership |
2025-06-24 12:14 pm |
N/A N/A |
TECOGEN INC. | TGEN | Deschenes Roger P. CAO |
0 | $0 | 164,998 (Direct) |
View |
2025-06-16 Exercise |
2025-06-20 08:50 am |
N/A N/A |
TECOGEN INC. | TGEN | PANORA ROBERT A COO and President |
52,500 | $1.1 | 265,223 (Direct) |
View |
2025-06-16 Exercise |
2025-06-20 08:50 am |
N/A N/A |
TECOGEN INC. | TGEN | PANORA ROBERT A COO and President |
12,723 | $0.79 | 265,223 (Direct) |
View |
2025-06-16 Exercise |
2025-06-20 08:50 am |
N/A N/A |
TECOGEN INC. | TGEN | PANORA ROBERT A COO and President |
30,000 | $0.71 | 265,223 (Direct) |
View |
2025-05-27 Exercise |
2025-06-02 6:14 pm |
N/A 2030-07-09 |
TECOGEN INC. | TGEN | PANORA ROBERT A COO and President |
70,000 | $0.71 | 130,000 (Direct) |
View |
2025-05-06 Exercise |
2025-05-07 09:26 am |
N/A N/A |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
6,250 | $1.1 | 1,001,006 (Direct) |
View |
2025-05-06 Exercise |
2025-05-07 09:26 am |
N/A N/A |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
12,500 | $1.2 | 1,001,006 (Direct) |
View |
2025-05-06 Exercise |
2025-05-07 09:26 am |
N/A N/A |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
15,000 | $1.75 | 1,001,006 (Direct) |
View |
2025-05-01 Other |
2025-05-05 09:37 am |
N/A N/A |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
240,256 | $2.14 | 1,207,512 (Direct) |
View |
2024-11-22 Exercise(A) |
2025-03-25 5:12 pm |
2021-07-09 2030-07-09 |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
100,000 | $0.71 | 827,000 (Direct) |
View |
2024-11-22 Exercise(A) |
2025-03-25 5:12 pm |
N/A N/A |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
100,000 | $0.71 | 827,000 (Direct) |
View |
2024-06-06 Option Award |
2024-06-18 3:55 pm |
2025-06-06 2034-06-06 |
TECOGEN INC. | TGEN | GHONIEM AHMED Director |
25,000 | $0.77 | 212,723 (Direct) |
View |
2024-06-06 Option Award |
2024-06-18 3:54 pm |
2025-06-06 2034-06-06 |
TECOGEN INC. | TGEN | GALITEVA ANGELINA Director |
25,000 | $0.77 | 200,000 (Direct) |
View |
2024-06-06 Option Award |
2024-06-18 3:52 pm |
2025-06-06 2034-06-06 |
TECOGEN INC. | TGEN | Hirsch Susan B Director |
25,000 | $0.77 | 125,000 (Direct) |
View |
2024-06-06 Option Award |
2024-06-18 3:51 pm |
2025-06-06 2034-06-06 |
TECOGEN INC. | TGEN | ALBERTINE JOHN M Director |
25,000 | $0.77 | 150,000 (Direct) |
View |
2024-06-06 Option Award |
2024-06-18 3:48 pm |
2025-06-06 2034-06-06 |
TECOGEN INC. | TGEN | LEWIS EARL R Director |
25,000 | $0.77 | 200,000 (Direct) |
View |