John Hatsopoulos insider trades
Open-market stock purchases and sales by John Hatsopoulos, Director at Tecogen Inc, from SEC Form 4 filings since Mar 20, 2026.
Recent trades
| Date | Stock | Trade | Value |
|---|---|---|---|
| Mar 20, 2026 | TGEN Tecogen Inc | Bought (not open market) | $44K |
Companies traded
- TGEN Tecogen Inc: other filings, last Mar 20, 2026