John Hatsopoulos 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 John reports to the SEC
and 2 more companies
Open-market buys and sales
129 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Sep 27, 2024 | TGEN | ↑ Buy | 10,000 | $0.84 | $8K | Direct | Sep 27, 2024 (0d) |
| Sep 25, 2024 | TGEN | ↑ Buy | 10,000 | $0.86 | $9K | Direct | Sep 25, 2024 (0d) |
| Aug 19, 2024 | TGEN | ↑ Buy | 10,000 | $0.90 | $9K | Direct | Aug 20, 2024 (1d) |
| Jul 10, 2024 | TGEN | ↑ Buy | 22,466 | $0.65 | $15K | Direct | Jul 12, 2024 (2d) |
| May 29, 2024 | TGEN | ↑ Buy | 10,000 | $0.80 | $8K | Direct | May 29, 2024 (0d) |
| May 28, 2024 | TGEN | ↑ Buy | 1,265 | $0.80 | $1K | Direct | May 29, 2024 (1d) |
| May 24, 2024 | TGEN | ↑ Buy | 11,935 | $0.80 | $10K | Direct | May 28, 2024 (4d) |
| May 21, 2024 | TGEN | ↑ Buy | 13,800 | $0.79 | $11K | Direct | May 22, 2024 (1d) |
| May 16, 2024 | TGEN | ↑ Buy | 3,000 | $0.75 | $2K | Direct | May 17, 2024 (1d) |
| May 15, 2024 | TGEN | ↑ Buy | 10,000 | $0.74 | $7K | Direct | May 16, 2024 (1d) |
| Apr 24, 2024 | TGEN | ↑ Buy | 5,000 | $0.67 | $3K | Direct | Apr 24, 2024 (0d) |
| Apr 23, 2024 | TGEN | ↑ Buy | 6,000 | $0.68 | $4K | Direct | Apr 23, 2024 (0d) |
| Apr 16, 2024 | TGEN | ↑ Buy | 1,000 | $0.68 | $679 | Direct | Apr 16, 2024 (0d) |
| Apr 15, 2024 | TGEN | ↑ Buy | 1,000 | $0.70 | $700 | Direct | Apr 16, 2024 (1d) |
| Apr 12, 2024 | TGEN | ↑ Buy | 1,000 | $0.70 | $700 | Direct | Apr 12, 2024 (0d) |
| Apr 11, 2024 | TGEN | ↑ Buy | 1,000 | $0.70 | $700 | Direct | Apr 11, 2024 (0d) |
| Apr 9, 2024 | TGEN | ↑ Buy | 1,000 | $0.70 | $700 | Direct | Apr 9, 2024 (0d) |
| Apr 8, 2024 | TGEN | ↑ Buy | 1,000 | $0.70 | $700 | Direct | Apr 8, 2024 (0d) |
| Apr 1, 2024 | TGEN | ↑ Buy | 10,000 | $0.70 | $7K | Direct | Apr 2, 2024 (1d) |
| Jan 22, 2024 | TGEN | ↑ Buy | 10,000 | $0.77 | $8K | Direct | Jan 23, 2024 (1d) |
| Jan 18, 2024 | TGEN | ↑ Buy | 10,000 | $0.73 | $7K | Direct | Jan 19, 2024 (1d) |
| Jan 16, 2024 | TGEN | ↑ Buy | 100,000 | $0.73 | $73K | Direct | Jan 16, 2024 (0d) |
| Dec 27, 2023 | TGEN | ↑ Buy | 25,000 | $0.80 | $20K | Direct | Dec 28, 2023 (1d) |
| Dec 22, 2023 | TGEN | ↑ Buy | 25,000 | $0.80 | $20K | Direct | Dec 26, 2023 (4d) |
| Dec 14, 2023 | TGEN | ↑ Buy | 50,000 | $0.89 | $45K | Direct | Dec 15, 2023 (1d) |
| Nov 20, 2023 | TGEN | ↑ Buy | 4,000 | $0.84 | $3K | Direct | Nov 21, 2023 (1d) |
| Nov 17, 2023 | TGEN | ↑ Buy | 46,000 | $0.84 | $39K | Direct | Nov 17, 2023 (0d) |
| Nov 14, 2023 | TGEN | ↑ Buy | 100 | $0.84 | $85 | Direct | Nov 17, 2023 (3d) |
| Oct 17, 2023 | TGEN | ↑ Buy | 50,000 | $0.80 | $40K | Direct | Oct 17, 2023 (0d) |
| Oct 12, 2023 | TGEN | ↑ Buy | 50,000 | $0.80 | $40K | Direct | Oct 13, 2023 (1d) |
| Sep 29, 2023 | TGEN | ↑ Buy | 2,000 | $0.98 | $2K | Direct | Oct 2, 2023 (3d) |
| Sep 27, 2023 | TGEN | ↑ Buy | 1,380 | $0.91 | $1K | Direct | Sep 28, 2023 (1d) |
| Sep 26, 2023 | TGEN | ↑ Buy | 2,000 | $0.92 | $2K | Direct | Sep 27, 2023 (1d) |
| Sep 19, 2023 | TGEN | ↑ Buy | 5,000 | $0.91 | $5K | Direct | Sep 19, 2023 (0d) |
| Sep 7, 2023 | TGEN | ↑ Buy | 200 | $1.00 | $200 | Direct | Sep 8, 2023 (1d) |
| Sep 5, 2023 | TGEN | ↑ Buy | 10,000 | $0.97 | $10K | Direct | Sep 6, 2023 (1d) |
| Aug 22, 2023 | TGEN | ↑ Buy | 5,000 | $1.12 | $6K | Direct | Aug 23, 2023 (1d) |
| Aug 17, 2023 | TGEN | ↑ Buy | 9,674 | $1.02 | $10K | Direct | Aug 17, 2023 (0d) |
| Jun 26, 2023 | TGEN | ↑ Buy | 1,000 | $0.96 | $960 | Direct | Jun 27, 2023 (1d) |
| Jun 20, 2023 | TGEN | ↑ Buy | 3,000 | $1.00 | $3K | Direct | Jun 21, 2023 (1d) |
| Jun 15, 2023 | TGEN | ↑ Buy | 5,000 | $1.11 | $6K | Direct | Jun 15, 2023 (0d) |
| Jun 12, 2023 | TGEN | ↑ Buy | 5,000 | $1.12 | $6K | Direct | Jun 12, 2023 (0d) |
| Jun 8, 2023 | TGEN | ↑ Buy | 500 | $1.09 | $546 | Direct | Jun 9, 2023 (1d) |
| Jun 7, 2023 | TGEN | ↑ Buy | 10,000 | $1.00 | $10K | Direct | Jun 8, 2023 (1d) |
| Jun 6, 2023 | TGEN | ↑ Buy | 7,000 | $1.00 | $7K | Direct | Jun 7, 2023 (1d) |
| Jun 6, 2023 | TGEN | ↑ Buy | 1,000 | $1.14 | $1K | Direct | Jun 6, 2023 (0d) |
| Jun 2, 2023 | TGEN | ↑ Buy | 1,000 | $1.09 | $1K | Direct | Jun 5, 2023 (3d) |
| May 26, 2023 | TGEN | ↑ Buy | 1,000 | $1.17 | $1K | Direct | May 26, 2023 (0d) |
| May 25, 2023 | TGEN | ↑ Buy | 2,000 | $1.17 | $2K | Direct | May 26, 2023 (1d) |
| May 15, 2023 | TGEN | ↑ Buy | 3,649 | $1.00 | $4K | Direct | May 16, 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 John Hatsopoulos's insider trades
John Hatsopoulos is a director at Tecogen (TGEN). Since Mar 20, 2008, John has reported 129 open-market purchases worth $2.3M and no sales on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (29 filings), other transactions (11 filings), gifts (6 filings), option exercises (2 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.