TECOGEN INC.
TGEN- Exchange
- NYSE
- Industry
- Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip
- SEC CIK
- 0001537435
Insider trades, last 90 days
None
- No open-market purchases or sales were filed in the last 90 days.
13F holders, Q2 2026
69
- +7 vs. Q1 2026
- Total value $49.49M
Superinvestors holding TGEN
0
- None of the superinvestors held TGEN at the end of Q2 2026.
Price chart
Latest insider trades
View all: Latest insider tradesOpen-market purchases and sales by TGEN insiders, newest first.
| Filed (ET) | Trade date | Insider | Transaction | Shares | Avg price | Value | Shares after | Holding change | Filing |
|---|---|---|---|---|---|---|---|---|---|
| Apr 27, 2026 | Apr 24, 2026 | GHONIEM AHMEDDirector | PPurchaseCommon Stock | +12.72K | $0.79 | +$10.05K | 12.72K | New position | SEC |
| Apr 14, 2026 | Apr 13, 2026 | Hirsch Susan BDirector | PPurchaseCommon Stock | +5K | $3.73 | +$18.65K | 265.42K | +1.9% | SEC |
| Mar 27, 2026 | Mar 27, 2026 | Hirsch Susan BDirector | PPurchaseCommon Stock | +10K | $2.54 | +$25.4K | 260.42K | +4.0% | SEC |
| Mar 27, 2026 | Mar 26, 2026 | LEWIS EARL RDirector | PPurchaseCommon Stock | +5K | $2.88 | +$14.4K | 1.01M | +0.5% | SEC |
| Mar 27, 2026 | Mar 27, 2026 | LEWIS EARL RDirector | PPurchaseCommon Stock | +5K | $2.52 | +$12.6K | 1.01M | +0.5% | SEC |
Top 5 13F holders, Q2 2026
View all: Top 5 13F holders, Q2 2026The largest institutional positions in TGEN at the end of Q2 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Portolan Capital Management, LLC | 1,551,113 | $8.1M | 0.30% | +1,107,558+249.7% | Added |
| VANGUARD CAPITAL MANAGEMENT LLC | 788,670 | $4.12M | 0.00% | +18,706+2.4% | Added |
| BARD ASSOCIATES INC | 682,221 | $3.56M | 0.79% | −6,088−0.9% | Reduced |
| Clear Harbor Asset Management, LLC | 650,000 | $3.39M | 0.21% | 00.0% | Unchanged |
| Herald Investment Management Ltd | 420,000 | $2.19M | 0.30% | 00.0% | Unchanged |