Tecogen Inc.Insider Ownership
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Current Insider Ownership
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| Hatsopoulos John | Director | Common Stock | Mar 20, 2026 | 1,038,951 | 3.47 | 6,773,961 |
| Lewis Earl | Director | Common Stock | Mar 27, 2026 | 1,011,006 | 3.38 | 6,591,759 |
| Lewis Earl R | Director | Stock Option (Right to Buy)Stock Options (Right to Buy) | Jul 24, 2025Jun 6, 2024 | 366,250200,000 | 1.220.67 | 2,387,9501,304,000 |
Insider Trading Trends
Insider Transactions
Voluntary Buys vs Sells
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Historical Insider Trading (3-Years)
10b5-1
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| Ghoniem Ahmed | Common Stock | No | No | Buy | ACQUIRE P | 0.79 | +12,723 | 10,000 | 12,723 | Apr 24, 2026 | |
| Ghoniem Ahmed | Stock Option (Right to Buy) | No | No | Exercise/Conversion | DISPOSE M | 0.79 | -12,723 | 10,000 | 0 | Apr 24, 2026 | |
| Hirsch Susan B | Common Stock | No | No | Buy | ACQUIRE P | 3.73 | +5,000 | 18,650 | 265,416 | Apr 13, 2026 | |