John Hatsopoulos
Known title: DirectorCIK: 0001274775
John Hatsopoulos's purchase track record
How the stock did after each of John Hatsopoulos's open-market purchases, measured from the purchase date. Several fills within a week count as one purchase.
Purchases measured
30
of 30 since August 22, 2022
Stock higher 6 months later
40%
3 months: 37%
Median 6-month return
-7.1%
3 months: -4.0%
Beat the S&P 500
37%
median -18.1% vs. index
| Purchase | Stock | Amount | 3 months | 6 months | S&P 500, 6 mo. |
|---|---|---|---|---|---|
| 9/25/2024 | TGEN | $17K | +81.7% | +218.3% | -0.2% |
| 8/19/2024 | TGEN | $9K | +1.1% | +154.4% | +9.3% |
| 7/10/2024 | TGEN | $15K | +15.1% | +204.5% | +5.1% |
| 5/24/2024 | TGEN | $16K | +33.8% | +13.8% | +12.5% |
| 5/15/2024 | TGEN | $23K | +3.5% | +21.6% | +12.8% |
| 4/24/2024 | TGEN | $3K | +4.3% | +31.0% | +14.3% |
| 4/16/2024 | TGEN | $5K | +16.2% | +33.1% | +15.1% |
| 4/8/2024 | TGEN | $3K | -1.5% | +13.2% | +9.5% |
| 3/27/2024 | TGEN | $7K | -3.4% | +14.7% | +9.0% |
| 1/16/2024 | TGEN | $89K | -15.0% | -1.3% | +18.9% |
| 12/22/2023 | TGEN | $40K | -12.5% | -11.9% | +14.9% |
| 12/14/2023 | TGEN | $45K | -13.0% | -11.2% | +15.1% |
| 11/14/2023 | TGEN | $42K | -27.4% | -19.7% | +16.7% |
| 10/12/2023 | TGEN | $80K | -5.4% | -11.8% | +19.5% |
| 9/27/2023 | TGEN | $3K | -17.6% | -21.4% | +22.8% |
| 9/19/2023 | TGEN | $6K | -4.5% | -20.4% | +16.5% |
| 9/5/2023 | TGEN | $10K | -21.6% | -30.2% | +12.9% |
| 8/15/2023 | TGEN | $15K | -14.4% | -37.8% | +11.6% |
| 6/20/2023 | TGEN | $4K | -12.0% | -16.0% | +8.6% |
| 6/12/2023 | TGEN | $11K | -10.4% | -24.5% | +6.5% |
Computed by MarketWall from SEC Form 4 filings and daily closing prices (close on the purchase date to the close about 3 and 6 months later). Companies that have since delisted are not included. Past results, not investment advice.
Associated companies
Transaction History
| TGEN | ▲ Buy | Option Exercise | 50,000 | $44K | 3/20/2026 | View on chart |
| TGEN | ▲ Buy | Open Market | 10,000 | $8K | 9/27/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 10,000 | $9K | 9/25/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 10,000 | $9K | 8/19/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 22,466 | $15K | 7/10/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 10,000 | $8K | 5/29/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,265 | $1K | 5/28/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 8,735 | $7K | 5/24/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 3,200 | $3K | 5/22/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 13,800 | $11K | 5/21/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 3,000 | $2K | 5/16/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 10,000 | $7K | 5/15/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $3K | 4/24/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $3K | 4/23/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $678 | 4/23/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $679 | 4/16/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $700 | 4/15/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $700 | 4/12/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $700 | 4/11/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $700 | 4/9/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $700 | 4/8/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 612 | $428 | 4/1/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $4K | 4/1/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 2,388 | $2K | 3/28/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 2,000 | $1K | 3/27/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 10,000 | $8K | 1/22/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 10,000 | $7K | 1/18/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 100,000 | $73K | 1/16/2024 | View on chart |
| TGEN | ▲ Buy | Open Market | 25,000 | $20K | 12/27/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 25,000 | $20K | 12/22/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 44,000 | $40K | 12/14/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $825 | 12/14/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $4K | 12/14/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 4,000 | $3K | 11/20/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 46,000 | $39K | 11/17/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 100 | $85 | 11/14/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 50,000 | $40K | 10/17/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 50,000 | $40K | 10/12/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 2,000 | $2K | 9/29/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,380 | $1K | 9/27/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 2,000 | $2K | 9/26/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $5K | 9/19/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 200 | $200 | 9/7/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 10,000 | $10K | 9/5/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $6K | 8/22/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 4,674 | $5K | 8/17/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $5K | 8/15/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $960 | 6/26/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 3,000 | $3K | 6/20/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $6K | 6/15/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $6K | 6/12/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 500 | $546 | 6/8/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 7,000 | $7K | 6/7/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 3,000 | $3K | 6/7/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $1K | 6/6/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 7,000 | $7K | 6/6/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $1K | 6/2/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $1K | 5/26/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $1K | 5/25/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 1,000 | $1K | 5/23/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 3,649 | $4K | 5/15/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 17,700 | $18K | 3/28/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 11,419 | $11K | 3/27/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 50,000 | $46K | 3/24/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 10,000 | $9K | 3/21/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 10,000 | $8K | 3/20/2023 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $5K | 10/19/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $5K | 10/17/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $5K | 10/11/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $5K | 10/10/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $6K | 9/8/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $6K | 9/2/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $5K | 9/1/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $6K | 8/31/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $6K | 8/30/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $6K | 8/29/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $6K | 8/26/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $6K | 8/25/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 2,300 | $3K | 8/24/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 2,700 | $3K | 8/24/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $6K | 8/23/2022 | View on chart |
| TGEN | ▲ Buy | Open Market | 5,000 | $6K | 8/22/2022 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 15, 2026
Tecogen's InVerde Helps Data Center Cut Electricity Costs
A data center reported a substantial reduction in its electricity expenses after installing Tecogen's InVerde system. The news highlights the company's energy-efficiency technology gaining traction in high-usage facilities. Such adoption could support revenue growth, especially as the stock trades near its recent support level.
Tecogen's InVerde Helps Data Center Cut Electricity Costs. A data center reported a substantial reduction in its electricity expenses after installing Tecogen's InVerde system. The news highlights the company's energy-efficiency technology gaining traction in high-usage facilities. Such adoption could support revenue growth, especially as the stock trades near its recent support level.