11 insiders reported 48 Form 4 transactions for TECOGEN INC. (TGEN) over the past 18 months (most recent 2026-09-08). Recent activity: Deschenes Roger P. (Chief Financial Officer) Buy 29,013 shares, Panora Robert (COO and President) Buy 9,671 shares, Whiting John Kimball IV (General Counsel & Secretary) Buy 19,342 shares, Rangesh Abinand (Chief Executive Officer) Buy 174,081 shares, Lafaille Stephen (VP of Business Development) Buy 29,013 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-08 | Deschenes Roger P. | Chief Financial Officer | Buy | 29,013 | $0 |
| 2026-09-08 | Panora Robert | COO and President | Buy | 9,671 | $0 |
| 2026-09-08 | Whiting John Kimball IV | General Counsel & Secretary | Buy | 19,342 | $0 |
| 2026-09-08 | Rangesh Abinand | Chief Executive Officer | Buy | 174,081 | $0 |
| 2026-09-08 | Lafaille Stephen | VP of Business Development | Buy | 29,013 | $0 |
| 2026-06-30 | Rangesh Abinand | Chief Executive Officer | Buy | 174,081 | $0 |
| 2026-06-30 | Lafaille Stephen | VP of Business Development | Buy | 29,013 | $0 |
| 2026-06-30 | Panora Robert | COO and President | Buy | 9,671 | $0 |
| 2026-06-30 | Deschenes Roger P. | CAO | Buy | 29,013 | $0 |
| 2026-06-30 | Whiting John Kimball IV | General Counsel & Secretary | Buy | 19,342 | $0 |
| 2026-04-27 | Ghoniem Ahmed | Director | Buy | 12,723 | $10,051 |
| 2026-04-14 | Hirsch Susan B | Director | Buy | 5,000 | $18,650 |
| 2026-03-27 | Lewis Earl | Director | Buy | 5,000 | $14,400 |
| 2026-03-27 | Lewis Earl | Director | Buy | 5,000 | $12,600 |
| 2026-03-27 | Hirsch Susan B | Director | Buy | 10,000 | $25,400 |
| 2026-03-23 | Deschenes Roger P. | CAO | Buy | 10,000 | $22,300 |
| 2026-03-23 | Hatsopoulos John | Director | Buy | 50,000 | $44,000 |
| 2026-03-23 | Whiting John Kimball IV | General Counsel & Secretary | Buy | 10,000 | $23,800 |
| 2026-03-23 | Rangesh Abinand | Chief Executive Officer | Buy | 3,000 | $6,900 |
| 2025-07-28 | Whiting John Kimball IV | General Counsel & Secretary | Buy | 11,976 | $0 |
| 2025-07-28 | Deschenes Roger P. | CAO | Buy | 17,964 | $0 |
| 2025-07-28 | Rangesh Abinand | Chief Executive Officer | Buy | 53,892 | $0 |
| 2025-07-28 | Lafaille Stephen | VP of Business Development | Buy | 11,976 | $0 |
| 2025-07-14 | PANORA ROBERT A | COO and President | Sell | 26,000 | $121,940 |
| 2025-07-14 | PANORA ROBERT A | COO and President | Sell | 31,000 | $155,000 |
来源：SEC Form 4 申报文件 · 截至 2026-09-08