| 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 | 05 May 2025 | 0001230427 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | TGEN | Common Stock | Other | $514,148 | +240,256 | +33% | $2.14 | 967,256 | 01 May 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Shares issued as payment of principal and accrued interest on Tecogen Inc. promissory note dated September 18, 2024 in favor of Mr. Lewis. |