John Hatsopoulos
CIK 1274775 · Co-Chief Executive Officer · last filed 2026-03-23
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$6.33M
Companies
5
Total Filings
175
Lifetime Open-Market Net
$1.12M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| TGEN | Director | 1,038,951 | $5.73 | $5.95M | $672.7K | 72 | 2026-03-23 |
| AMERICAN DG ENERGY INC (ADGE) Delisted | Co-Chief Executive Officer | 1,165,946 | — | — | $417.9K | 38 | 2016-05-06 |
| AGENUS INC (AGEND) Delisted | Director | — | — | — | $0 | 1 | 2011-10-05 |
| AGEN | Director | 115,000 | $3.30 | $379.5K | $27.7K | 22 | 2011-07-06 |
| American CareSource Holdings, Inc. (ANCI) Delisted | Director | 3,333 | — | — | $0 | 2 | 2010-07-22 |
Recent Filings · Page 12 of 18
175 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2014-10-20 | — | Buy (P) | +10,000 | $5.1K | |
| 2014-10-08 | — | Mixed | +1,764,000 | $0 | |
| 2014-09-23 | AMERICAN DG ENERGY INC (ADGE) Delisted | Grant (A) | +10,000 | $10.0K | EDGAR |
| 2014-08-28 | AMERICAN DG ENERGY INC (ADGE) Delisted | Buy (P) | +10,000 | $12.7K | EDGAR |
| 2014-08-22 | AMERICAN DG ENERGY INC (ADGE) Delisted | Mixed | +52,184 | $97.0K | EDGAR |
| 2013-12-13 | — | Buy (P) | +3,105 | $1.6K | |
| 2013-12-10 | — | Buy (P) | +936 | $477 | |
| 2013-12-05 | — | Buy (P) | +426 | $217 | |
| 2013-11-25 | — | Buy (P) | +2,000 | $1.0K | |
| 2013-11-25 | AMERICAN DG ENERGY INC (ADGE) Delisted | Other (J) | +46,688 | $72.0K | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.