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| Keyboard |
| Lafaille Stephen
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|---|---|
| CIK # | 0002074096 |
| EDGAR Form | CIK | 2011 - 2026 |
|---|---|---|
| 3 | [0002074096] | |
| 4 | [0002074096] |
| Form 3/4/5 Subject | 2011 - 2026 |
|---|---|
| Tecogen Inc | |
| Lafaille Stephen |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Tecogen Inc TGEN
Common Stock
|
2025-07-24 | Grant | 11,976 | $0.00 | |
|
Tecogen Inc TGEN
Stock Option (Right to Buy) · derivative
|
2025-07-24 | Grant | 24,075 | $8.35 | 201,026 |
|
Tecogen Inc TGEN
Common Stock
|
2025-06-23 | Option exercise | 10,000 | $1.10 | 11,000 |
|
Tecogen Inc TGEN
Common Stock
|
2025-06-23 | Sell | 10,000 | $7.25 | 72,500 |
|
Tecogen Inc TGEN
Stock Options (Right to Buy) · derivative
|
2025-06-23 | Option exercise | 10,000 | $1.10 | 11,000 |
|
Tecogen Inc TGEN
Common Stock
|
2025-06-06 | Option exercise | 25,000 | $1.10 | 27,500 |
|
Tecogen Inc TGEN
Stock Options (Right to Buy) · derivative
|
2025-06-06 | Option exercise | 25,000 | $1.10 | 27,500 |
|
Tecogen Inc TGEN
Common Stock
|
2025-06-06 | Sell | 25,000 | $5.98 | 149,500 |
|
Tecogen Inc TGEN
Stock Options (Right to Buy) · derivative
|
2025-06-04 | Option exercise | 15,000 | $0.71 | 10,650 |
|
Tecogen Inc TGEN
Common Stock
|
2025-06-04 | Option exercise | 15,000 | $0.71 | 10,650 |
|
Tecogen Inc TGEN
Common Stock
|
2025-06-04 | Sell | 15,000 | $5.00 | 75,000 |
|
Tecogen Inc TGEN
Common Stock
|
2025-06-03 | Sell | 10,000 | $4.88 | 48,800 |
|
Tecogen Inc TGEN
Common Stock
|
2025-06-03 | Option exercise | 10,000 | $0.71 | 7,100 |
|
Tecogen Inc TGEN
Stock Options (Right to Buy) · derivative
|
2025-06-03 | Option exercise | 10,000 | $0.71 | 7,100 |
|
Tecogen Inc TGEN
Common Stock
|
2025-03-03 | Buy | 400 | $2.50 | 1,000 |