Tecogen (TGEN)
Builds natural-gas cogeneration, cooling, and energy systems with lifecycle service.
$3.32
After hours0.00 (0.00%)
At close$3.32(+0.30%)
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13F · 13D/G · Form 4
| Institutions | 31.41% | 9.48M shares | |
|---|---|---|---|
| 77 holders · as of Jun 30, 2026 | |||
| Insiders | 13.86% | 4.19M shares | |
| 6 holders · as of Sep 8, 2026 | |||
| Strategic holders | 0.80% | 241.8K shares | |
| 1 holder · as of Jan 11, 2018 | |||
| Other | 53.93% | 16.28M shares | |
| remainder | |||
30.19M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
13F, as of Jun 30, 2026
77 holders · 9.48M shares · 21 new positions · 38 increased · 16 reduced · 13 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Portolan Capital Management, LLC | 1.55M | 5.14% | +1.11M | Aug 14, 2026 |
| Vanguard Capital Management LLC | 788.7K | 2.61% | +18.7K | Aug 13, 2026 |
| Bard Associates Inc | 682.2K | 2.26% | −6.1K | Aug 12, 2026 |
| Clear Harbor Asset Management, LLC | 650.0K | 2.15% | 0 | Aug 12, 2026 |
| Herald Investment Management Ltd | 420.0K | 1.39% | 0 | Jul 23, 2026 |
| Gratia Capital, LLC | 388.7K | 1.29% | +388.7Knew | Aug 14, 2026 |
| UBS Group AG | 363.0K | 1.20% | +43.2K | Aug 13, 2026 |
| Meros Investment Management, LP | 353.5K | 1.17% | +61.8K | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Portolan Capital Management, LLC | 5.19% | 1.55M | 13G | Jun 10, 2026 |
Form 4
Latest trades
No open-market trades in the last 12 months.
House and Senate disclosures
Not reported.