John Hatsopoulos is Director at TECOGEN INC. (TGEN). They have made 118 open-market trades across 4 companies since 2008, most recently 2026-03-20.
CIK 0001274775
118 open-market purchases totalling $3.3M since 2008, never a sale. Across 67 scored buys the stock is up 2.9% at ninety days, and 3.1 points behind the S&P over the same stretch.
67 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 96% | 96% | 96% |
| Avg Move | +9.7% | +2.9% | +2.9% |
| Alpha | -20.4% | +1.4% | -3.1% |
| Scored | 67 | 67 | 67 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TGEN | BUY | 2024-09-27 | 2024-09-27 | $0.84 | $8K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-09-25 | 2024-09-25 | $0.86 | $9K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-08-19 | 2024-08-20 | $0.90 | $9K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-07-10 | 2024-07-12 | $0.65 | $15K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-05-29 | 2024-05-29 | $0.80 | $8K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-05-28 | 2024-05-29 | $0.80 | $1K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-05-22 | 2024-05-28 | $0.80 | $10K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-05-21 | 2024-05-22 | $0.79 | $11K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-05-16 | 2024-05-17 | $0.75 | $2K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-05-15 | 2024-05-16 | $0.74 | $7K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-04-24 | 2024-04-24 | $0.67 | $3K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-04-23 | 2024-04-23 | $0.69 | $4K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-04-16 | 2024-04-16 | $0.68 | $680 | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-04-15 | 2024-04-16 | $0.70 | $700 | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-04-12 | 2024-04-12 | $0.70 | $700 | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-04-11 | 2024-04-11 | $0.70 | $700 | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-04-09 | 2024-04-09 | $0.70 | $700 | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-04-08 | 2024-04-08 | $0.70 | $700 | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-03-27 | 2024-04-02 | $0.70 | $7K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-01-22 | 2024-01-23 | $0.77 | $8K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-01-18 | 2024-01-19 | $0.73 | $7K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2024-01-16 | 2024-01-16 | $0.73 | $73K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2023-12-27 | 2023-12-28 | $0.80 | $20K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2023-12-22 | 2023-12-26 | $0.80 | $20K | +11.4% | +3.1% | +3.1% |
| TGEN | BUY | 2023-12-14 | 2023-12-15 | $0.89 | $45K | +11.4% | +3.1% | +3.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.