| 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 | 07 May 2025 | 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 | $26,250 | +15,000 | +1.6% | $1.75 | 982,256 | 06 May 2025 | Direct | |
| transaction | TGEN | Common Stock | Exercise of in-the-money or at-the-money derivative security | $15,000 | +12,500 | +1.3% | $1.20 | 994,756 | 06 May 2025 | Direct | |
| transaction | TGEN | Common Stock | Exercise of in-the-money or at-the-money derivative security | $6,875 | +6,250 | +0.63% | $1.10 | 1,001,006 | 06 May 2025 | Direct |