| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| LEWIS EARL R | Director | C/O TECOGEN INC., 76 TREBLE COVE ROAD, NORTH BILLERICA | /s/ Earl R. Lewis | 2025-05-07 | 0001230427 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | TGEN | Common Stock | Exercise of in-the-money or at-the-money derivative security | $26.3K | +15K | +1.55% | $1.75 | 982K | May 6, 2025 | Direct | |
| transaction | TGEN | Common Stock | Exercise of in-the-money or at-the-money derivative security | $15K | +12.5K | +1.27% | $1.20 | 995K | May 6, 2025 | Direct | |
| transaction | TGEN | Common Stock | Exercise of in-the-money or at-the-money derivative security | $6.88K | +6.25K | +0.63% | $1.10 | 1M | May 6, 2025 | Direct |