CIK 0001537435 · Non-accelerated filer<br>Smaller reporting company
TECOGEN INC.
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- TGEN
- Exchange
- NYSE
- Industry
- Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 043536131
- Phone
- 781-466-6400
- Business address
- 76 TREBLE COVE ROAD, BLDG. 1, NORTH BILLERICA, MA, 01862
- Former names
- TECOGEN INC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-04-24 | Ghoniem Ahmed Director | Purchase | +12,723 | $0.79 | $10K | 12,723 |
| 2026-04-13 | Hirsch Susan B Director | Purchase | +5,000 | $3.73 | $19K | 265,416 |
| 2026-03-27 | Hirsch Susan B Director | Purchase | +10,000 | $2.54 | $25K | 260,416 |
| 2026-03-27 | Lewis Earl Director | Purchase | +5,000 | $2.52 | $13K | 1,011,006 |
| 2026-03-26 | Lewis Earl Director | Purchase | +5,000 | $2.88 | $14K | 1,006,006 |
| 2026-03-23 | Whiting John Kimball IV General Counsel & Secretary | Purchase | +10,000 | $2.38 | $24K | 22,612 |
| 2026-03-20 | Deschenes Roger P. CAO | Purchase | +10,000 | $2.23 | $22K | 52,962 |
| 2026-03-20 | Rangesh Abinand Chief Executive Officer | Purchase | +3,000 | $2.30 | $7K | 67,193 |
| 2025-03-03 | Lafaille Stephen VP of Business Development | Purchase | +400 | $2.50 | $1K | 400 |
| 2024-11-22 | LEWIS EARL R Director | Purchase | +100,000 | $0.71 | $71K | 737,000 |
| 2024-09-27 | HATSOPOULOS JOHN Director | Purchase | +10,000 | $0.84 | $8K | 988,951 |
| 2024-09-25 | HATSOPOULOS JOHN Director | Purchase | +10,000 | $0.86 | $9K | 978,951 |
| 2024-08-19 | HATSOPOULOS JOHN Director | Purchase | +10,000 | $0.90 | $9K | 968,951 |
| 2024-07-15 | LEWIS EARL R Director | Purchase | +10,000 | $0.68 | $7K | 625,000 |
| 2024-07-15 | LEWIS EARL R Director | Purchase | +10,000 | $0.68 | $7K | 635,000 |
| 2024-07-15 | LEWIS EARL R Director | Purchase | +10,000 | $0.68 | $7K | 625,000 |
| 2024-07-10 | HATSOPOULOS JOHN Director | Purchase | +22,466 | $0.65 | $15K | 958,951 |
| 2024-05-29 | HATSOPOULOS JOHN Director | Purchase | +10,000 | $0.80 | $8K | 935,220 |
| 2024-05-28 | HATSOPOULOS JOHN Director | Purchase | +1,265 | $0.80 | $1K | 936,485 |
| 2024-05-24 | HATSOPOULOS JOHN Director | Purchase | +8,735 | $0.80 | $7K | 925,220 |
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