TECOGEN INC.

TGEN
Exchange
NYSE
Industry
Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip
SEC CIK
0001537435

Price chart

Open-market purchases and sales by TGEN insiders, newest first.

Insider trades
Filed (ET)Trade dateInsiderTransactionSharesAvg priceValueShares afterHolding changeFiling
Apr 27, 2026Apr 24, 2026GHONIEM AHMEDDirectorPPurchaseCommon Stock+12.72K$0.79+$10.05K12.72KNew positionSEC
Apr 14, 2026Apr 13, 2026Hirsch Susan BDirectorPPurchaseCommon Stock+5K$3.73+$18.65K265.42K+1.9%SEC
Mar 27, 2026Mar 27, 2026Hirsch Susan BDirectorPPurchaseCommon Stock+10K$2.54+$25.4K260.42K+4.0%SEC
Mar 27, 2026Mar 26, 2026LEWIS EARL RDirectorPPurchaseCommon Stock+5K$2.88+$14.4K1.01M+0.5%SEC
Mar 27, 2026Mar 27, 2026LEWIS EARL RDirectorPPurchaseCommon Stock+5K$2.52+$12.6K1.01M+0.5%SEC

The largest institutional positions in TGEN at the end of Q2 2026.

Institutions holding TGEN in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Portolan Capital Management, LLC1,551,113$8.1M0.30%+1,107,558+249.7%Added
VANGUARD CAPITAL MANAGEMENT LLC788,670$4.12M0.00%+18,706+2.4%Added
BARD ASSOCIATES INC682,221$3.56M0.79%−6,088−0.9%Reduced
Clear Harbor Asset Management, LLC650,000$3.39M0.21%00.0%Unchanged
Herald Investment Management Ltd420,000$2.19M0.30%00.0%Unchanged