Susan B Hirsch insider trades: Tecogen (TGEN) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Susan reports to the SEC
Open-market buys and sales
2 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Apr 13, 2026 | TGEN | ↑ Buy | 5,000 | $3.73 | $19K | Direct | Apr 14, 2026 (1d) |
| Oct 19, 2023 | TGEN | ↑ Buy | 5,000 | $0.92 | $5K | Direct | Oct 20, 2023 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other TGEN insiders
Open-market trades in the last 12 months
About Susan B Hirsch's insider trades
Susan B Hirsch is a director at Tecogen (TGEN). Since Oct 19, 2023, Susan has reported 2 open-market purchases worth $23K and no sales on SEC Form 4. In the last 12 months: 1 buy ($19K).
Their filings also include grants and awards (28 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every TGEN insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.