TGEN Insider Trading Activity and SEC Form 4 Filings
TGEN insider trading summary
Over the past 12 months, insiders at Tecogen Inc. (TGEN) reported 4 open-market purchases worth $72K by 4 insiders and no sales on SEC Form 4. Net insider buying was $72K.
Latest TGEN insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Apr 13, 2026 | Susan B Hirsch | Director | Buy | $19K (5,000 @ $3.73) |
| Mar 23, 2026 | John Kimball Whiting IV | General Counsel & Secretary | Buy | $24K (10,000 @ $2.38) |
| Mar 20, 2026 | Roger P. Deschenes | CAO | Buy | $22K (10,000 @ $2.23) |
| Mar 20, 2026 | Abinand Rangesh | Chief Executive Officer | Buy | $7K (3,000 @ $2.30) |
| Jun 23, 2025 | Stephen Lafaille | VP of Business Development | Sell | $73K (10,000 @ $7.25) |
| Jun 6, 2025 | Stephen Lafaille | VP of Business Development | Sell | $150K (25,000 @ $5.98) |
| Jun 4, 2025 | Stephen Lafaille | VP of Business Development | Sell | $75K (15,000 @ $5.00) |
| Jun 3, 2025 | Stephen Lafaille | VP of Business Development | Sell | $49K (10,000 @ $4.88) |
| Mar 3, 2025 | Stephen Lafaille | VP of Business Development | Buy | $1K (400 @ $2.50) |
| Nov 22, 2024 | Earl R Lewis | Director | Buy | $71K (100,000 @ $0.71) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.