TGEN TECOGEN INC.
NYSE · SEC CIK 1537435 · EDGAR
- Bought, last 12 months
- $134.1K 8 purchases by 6 insiders
- Sold, last 12 months
- $0 0 sales by 0 insiders
- Filings on record
- 146 since 2021-08-19, latest 2026-09-08 17:12
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Hirsch Susan B | Dir | $44.0K | — |
| Lewis Earl | Dir | $27.0K | — |
| Whiting John Kimball IV | GC, Sec | $23.8K | — |
| Deschenes Roger P. | CFO | $22.3K | — |
| Ghoniem Ahmed | Dir | $10.0K | — |
| Rangesh Abinand | CEO, Dir, CFO | $6,900 | — |
| Lafaille Stephen | VP of Business Development | — | — |
| Panora Robert | COO, Pres | — | — |
| Hatsopoulos John | Dir | — | — |
Transactions 121
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 2026-09-08 17:12 | 2026-06-26 | TGEN | Lafaille Stephen | VP of Business Development | A - Grant | $0.00 | +29.0K | 41.4K | +234% | $0 |
| A | 2026-09-08 17:11 | 2026-06-26 | TGEN | Whiting John Kimball IV | GC, Sec | A - Grant | $0.00 | +19.3K | 42.0K | +86% | $0 |
| A | 2026-09-08 17:11 | 2026-06-26 | TGEN | Panora Robert | COO, Pres | A - Grant | $0.00 | +9,671 | 72.2K | +15% | $0 |
| A | 2026-09-08 17:10 | 2026-06-26 | TGEN | Deschenes Roger P. | CFO | A - Grant | $0.00 | +29.0K | 82.0K | +55% | $0 |
| A | 2026-09-08 17:08 | 2026-06-26 | TGEN | Rangesh Abinand | CEO, Dir | A - Grant | $0.00 | +174.1K | 241.3K | +259% | $0 |
| 2026-06-30 20:36 | 2026-06-26 | TGEN | Whiting John Kimball IV | GC, Sec | A - Grant | — | +19.3K | 19.3K | New | — | |
| 2026-06-30 20:36 | 2026-06-26 | TGEN | Lafaille Stephen | VP of Business Development | A - Grant | — | +29.0K | 29.0K | New | — | |
| 2026-06-30 20:35 | 2026-06-26 | TGEN | Deschenes Roger P. | CAO | A - Grant | — | +29.0K | 29.0K | New | — | |
| D | 2026-06-30 20:35 | 2026-06-26 | TGEN | Panora Robert | COO, Pres | A - Grant | — | +9,671 | 9,671 | New | — |
| D | 2026-06-30 20:34 | 2026-06-26 | TGEN | Rangesh Abinand | CEO, Dir, CFO | A - Grant | — | +174.1K | 174.1K | New | — |
| D | 2026-04-27 09:30 | 2026-04-24 | TGEN | Ghoniem Ahmed | Dir | P - Purchase | $0.786 | +12.7K | 12.7K | New | +$10.0K |
| 2026-04-14 16:03 | 2026-04-13 | TGEN | Hirsch Susan B | Dir | P - Purchase | $3.73 | +5,000 | 265.4K | +2% | +$18.6K | |
| 2026-03-27 | 2026-03-27 | TGEN | Hirsch Susan B | Dir | P - Purchase | $2.54 | +10.0K | 260.4K | +4% | +$25.4K | |
| 2026-03-27 | 2026-03-26 | TGEN | Lewis Earl | Dir | P - Purchase | $2.88 | +5,000 | 1.01M | +0.5% | +$14.4K | |
| 2026-03-27 | 2026-03-27 | TGEN | Lewis Earl | Dir | P - Purchase | $2.52 | +5,000 | 1.01M | +0.5% | +$12.6K | |
| 2026-03-23 | 2026-03-23 | TGEN | Whiting John Kimball IV | GC, Sec | P - Purchase | $2.38 | +10.0K | 22.6K | +79% | +$23.8K | |
| D | 2026-03-23 | 2026-03-20 | TGEN | Hatsopoulos John | Dir | M - OptEx | $0.88 | +50.0K | 1.04M | +5% | +$44.0K |
| 2026-03-23 | 2026-03-20 | TGEN | Deschenes Roger P. | CAO | P - Purchase | $2.23 | +10.0K | 53.0K | +23% | +$22.3K | |
| 2026-03-23 | 2026-03-20 | TGEN | Rangesh Abinand | CEO, Dir, CFO | P - Purchase | $2.30 | +3,000 | 67.2K | +5% | +$6,900 | |
| D | 2025-07-28 | 2025-07-24 | TGEN | Rangesh Abinand | CEO, Dir, CFO | A - Grant | $0.00 | +53.9K | 64.2K | +523% | $0 |
| D | 2025-07-28 | 2025-07-24 | TGEN | Deschenes Roger P. | CAO | A - Grant | $0.00 | +18.0K | 43.0K | +72% | $0 |
| D | 2025-07-28 | 2025-07-24 | TGEN | Whiting John Kimball IV | GC, Sec | A - Grant | $0.00 | +12.0K | 12.6K | +1,883% | $0 |
| D | 2025-07-28 | 2025-07-24 | TGEN | Lafaille Stephen | VP of Business Development | A - Grant | $0.00 | +12.0K | 12.4K | +2,994% | $0 |
| DA | 2025-07-14 | 2025-05-27 | TGEN | PANORA ROBERT A | COO, Pres | M - OptEx | $0.71 | +70.0K | 70.0K | New | +$49.7K |
| DMA | 2025-07-14 | 2025-06-16 | TGEN | PANORA ROBERT A | COO, Pres | M - OptEx | $0.9357 | +95.2K | 108.2K | +732% | +$89.1K |
| DMA | 2025-07-14 | 2025-06-03+ | TGEN | PANORA ROBERT A | COO, Pres | S - Sale+OE | $5.36 | -102.7K | 62.5K | -62% | -$550.8K |
| D | 2025-06-24 | 2025-03-03 | TGEN | Lafaille Stephen | VP of Business Development | P - Purchase | $2.50 | +400 | 400 | New | +$1,000 |
| DM | 2025-06-24 | 2025-06-03+ | TGEN | Lafaille Stephen | VP of Business Development | X - OptEx | $0.9375 | +60.0K | 10.4K | New | +$56.2K |
| DM | 2025-06-24 | 2025-06-03+ | TGEN | Lafaille Stephen | VP of Business Development | S - Sale+OE | $5.76 | -60.0K | 400 | -99% | -$345.8K |
| M | 2025-06-20 | 2025-06-16 | TGEN | PANORA ROBERT A | COO, Pres | X - OptEx | $0.9357 | +95.2K | 82.7K | New | +$89.1K |
| M | 2025-05-07 | 2025-05-06 | TGEN | LEWIS EARL R | Dir | X - OptEx | $1.43 | +33.8K | 1.00M | +3% | +$48.1K |
| 2025-05-05 | 2025-05-01 | TGEN | LEWIS EARL R | Dir | J - Other | $2.14 | +240.3K | 967.3K | +33% | +$514.1K | |
| A | 2025-03-25 | 2023-10-09 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.8 | +2,000 | 627.0K | +0.3% | +$1,600 |
| A | 2025-03-25 | 2024-07-15 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.68 | +10.0K | 625.0K | +2% | +$6,800 |
| DA | 2025-03-25 | 2024-11-22 | TGEN | LEWIS EARL R | Dir | X - OptEx | $0.71 | +100.0K | 727.0K | +16% | +$71.0K |
| 2024-12-06 | 2023-10-09 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.8 | +2,000 | 637.0K | +0.3% | +$1,600 | |
| 2024-12-06 | 2024-11-22 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.71 | +100.0K | 737.0K | +16% | +$71.0K | |
| 2024-09-27 | 2024-09-27 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.84 | +10.0K | 989.0K | +1% | +$8,400 | |
| 2024-09-25 | 2024-09-25 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.86 | +10.0K | 979.0K | +1% | +$8,600 | |
| 2024-08-20 | 2024-08-19 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.9 | +10.0K | 969.0K | +1% | +$9,000 | |
| I | 2024-07-17 | 2024-07-15 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.68 | +10.0K | 635.0K | +2% | +$6,800 |
| 2024-07-15 | 2024-07-15 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.68 | +10.0K | 625.0K | +2% | +$6,800 | |
| 2024-07-12 | 2024-07-10 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.65 | +22.5K | 959.0K | +2% | +$14.6K | |
| 2024-05-29 | 2024-05-29 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.8 | +10.0K | 935.2K | +1% | +$8,000 | |
| 2024-05-29 | 2024-05-28 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.8 | +1,265 | 936.5K | +0.1% | +$1,012 | |
| M | 2024-05-28 | 2024-05-22+ | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.7973 | +11.9K | 916.5K | +1% | +$9,516 |
| 2024-05-22 | 2024-05-21 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.79 | +13.8K | 913.3K | +2% | +$10.9K | |
| 2024-05-17 | 2024-05-16 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.75 | +3,000 | 899.5K | +0.3% | +$2,250 | |
| 2024-05-16 | 2024-05-15 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.74 | +10.0K | 896.5K | +1% | +$7,400 | |
| 2024-05-03 | 2024-05-01 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.75 | +5,000 | 615.0K | +0.8% | +$3,750 | |
| 2024-04-24 | 2024-04-24 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.67 | +5,000 | 886.5K | +0.6% | +$3,350 | |
| 2024-04-24 | 2024-04-24 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.68 | +10.0K | 610.0K | +2% | +$6,800 | |
| M | 2024-04-23 | 2024-04-23 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.6883 | +6,000 | 880.5K | +0.7% | +$4,130 |
| 2024-04-16 | 2024-04-16 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.68 | +1,000 | 875.5K | +0.1% | +$680 | |
| 2024-04-16 | 2024-04-15 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.7 | +1,000 | 874.5K | +0.1% | +$700 | |
| 2024-04-12 | 2024-04-12 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.7 | +1,000 | 873.5K | +0.1% | +$700 | |
| 2024-04-11 | 2024-04-11 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.7 | +1,000 | 872.5K | +0.1% | +$700 | |
| 2024-04-09 | 2024-04-09 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.7 | +1,000 | 871.5K | +0.1% | +$700 | |
| 2024-04-08 | 2024-04-08 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.7 | +1,000 | 870.5K | +0.1% | +$700 | |
| M | 2024-04-02 | 2024-03-27+ | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.7 | +10.0K | 863.9K | +1% | +$7,000 |
| 2024-01-25 | 2024-01-24 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.78 | +9,152 | 560.8K | +2% | +$7,139 | |
| 2024-01-23 | 2024-01-23 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.68 | +10.0K | 551.7K | +2% | +$6,800 | |
| 2024-01-23 | 2024-01-22 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.77 | +10.0K | 859.5K | +1% | +$7,700 | |
| 2024-01-19 | 2024-01-18 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.73 | +10.0K | 849.5K | +1% | +$7,300 | |
| 2024-01-16 | 2024-01-16 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.73 | +100.0K | 839.5K | +14% | +$73.0K | |
| 2023-12-28 | 2023-12-27 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.8 | +25.0K | 739.5K | +3% | +$20.0K | |
| 2023-12-26 | 2023-12-22 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.8 | +25.0K | 714.5K | +4% | +$20.0K | |
| M | 2023-12-15 | 2023-12-14 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.8936 | +50.0K | 689.5K | +8% | +$44.7K |
| 2023-11-21 | 2023-11-20 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.85 | +4,000 | 639.5K | +0.6% | +$3,400 | |
| 2023-11-17 | 2023-11-14 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.85 | +100 | 589.5K | +0.0% | +$85 | |
| 2023-11-17 | 2023-11-17 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.85 | +46.0K | 635.5K | +8% | +$39.1K | |
| 2023-10-20 | 2023-10-19 | TGEN | Hirsch Susan B | Dir | P - Purchase | $0.92 | +5,000 | 250.4K | +2% | +$4,600 | |
| 2023-10-18 | 2023-10-18 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.91 | +25.0K | 541.7K | +5% | +$22.8K | |
| 2023-10-17 | 2023-10-17 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.8 | +50.0K | 589.4K | +9% | +$40.0K | |
| 2023-10-13 | 2023-10-12 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.8 | +50.0K | 539.4K | +10% | +$40.0K | |
| 2023-10-11 | 2023-10-09 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.8 | +2,000 | 516.7K | +0.4% | +$1,600 | |
| 2023-10-02 | 2023-09-29 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.98 | +2,000 | 489.4K | +0.4% | +$1,960 | |
| 2023-09-28 | 2023-09-27 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.91 | +1,380 | 487.4K | +0.3% | +$1,256 | |
| D | 2023-09-27 | 2023-09-26 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.92 | +2,000 | 486.0K | +0.4% | +$1,840 |
| 2023-09-19 | 2023-09-19 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.91 | +5,000 | 484.0K | +1% | +$4,550 | |
| 2023-09-11 | 2023-09-08 | TGEN | LEWIS EARL R | Dir | P - Purchase | $0.95 | +10.0K | 514.7K | +2% | +$9,500 | |
| 2023-09-08 | 2023-09-07 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.00 | +200 | 479.0K | +0.0% | +$200 | |
| 2023-09-06 | 2023-09-05 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.97 | +10.0K | 478.8K | +2% | +$9,700 | |
| 2023-09-06 | 2023-09-05 | TGEN | LEWIS EARL R | Dir | P - Purchase | $1.00 | +10.0K | 504.7K | +2% | +$10.0K | |
| M | 2023-09-01 | 2023-08-15+ | TGEN | Rangesh Abinand | CEO, Dir, CFO | P - Purchase | $1.02 | +1,001 | 9,301 | +12% | +$1,021 |
| 2023-08-23 | 2023-08-22 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.12 | +5,000 | 468.8K | +1% | +$5,600 | |
| M | 2023-08-17 | 2023-08-15+ | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.02 | +9,674 | 459.1K | +2% | +$9,861 |
| 2023-08-17 | 2023-08-14 | TGEN | LEWIS EARL R | Dir | P - Purchase | $1.00 | +1,500 | 494.7K | +0.3% | +$1,500 | |
| 2023-06-27 | 2023-06-26 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $0.96 | +1,000 | 454.1K | +0.2% | +$960 | |
| 2023-06-21 | 2023-06-20 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.00 | +3,000 | 453.1K | +0.7% | +$3,000 | |
| 2023-06-20 | 2023-06-20 | TGEN | Rangesh Abinand | CEO, Dir, CFO | P - Purchase | $1.04 | +1,500 | 9,300 | +19% | +$1,560 | |
| 2023-06-15 | 2023-06-15 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.11 | +5,000 | 450.1K | +1% | +$5,550 | |
| 2023-06-12 | 2023-06-12 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.12 | +5,000 | 445.1K | +1% | +$5,600 | |
| 2023-06-09 | 2023-06-08 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.09 | +500 | 440.1K | +0.1% | +$545 | |
| M | 2023-06-08 | 2023-06-07 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.00 | +10.0K | 439.6K | +2% | +$10.0K |
| 2023-06-07 | 2023-06-06 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.00 | +7,000 | 429.6K | +2% | +$7,000 | |
| 2023-06-06 | 2023-06-06 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.14 | +1,000 | 422.6K | +0.2% | +$1,140 | |
| 2023-06-05 | 2023-06-02 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.09 | +1,000 | 421.6K | +0.2% | +$1,090 | |
| M | 2023-05-26 | 2023-05-23+ | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.17 | +2,000 | 418.6K | +0.5% | +$2,340 |
| 2023-05-26 | 2023-05-26 | TGEN | HATSOPOULOS JOHN | Dir | P - Purchase | $1.17 | +1,000 | 420.6K | +0.2% | +$1,170 |
Purchase Sale Sale after option exercise All abbreviations