TECOGEN INC/WALTHAM MA TGEN
$4.52
-8.3% 52w: $2.00 – $12.07
Latest 13F among current holders filed 32 days ago (Jun 3, 2026)
Price — last 12 months
research preview data2.007.0412.07
Jun 20, 2025 Jul 2, 2026
Institutional holders
62
-3 QoQ
13F value
$19.9M
-47.0% QoQ
Smart-money holders
9
signal tier ≥ 2
New smart buyers
2
Q1 2026
Options barometer
3.0×
$1.4M calls / $466K puts
Institutional value by quarter
Number of holders
Who owns TGEN?
Q1 2026 filings| Fund | Type | Shares | Value | % of fund | Change |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | Diversified mechanical | 770.0K | $2.0M | 0.0% | — |
| BARD ASSOCIATES INC | Other | 688.3K | $1.8M | 0.4% | -0.1% |
| Clear Harbor Asset Management, LLC | Other | 650.0K | $1.7M | 0.1% | +6.6% |
| Portolan Capital Management, LLC | Other | 443.6K | $1.1M | 0.1% | -0.5% |
| HERALD INVESTMENT MANAGEMENT Ltd ★2 | Fundamental diversified | 420.0K | $1.1M | 0.2% | Held |
| Arosa Capital Management LP ★2 | Fundamental concentrated | 350.0K | $896K | 0.6% | Held |
| Palisades Investment Partners, LLC ★3 | Fundamental concentrated | 333.9K | $855K | 0.3% | -14.4% |
| UBS Group AG | Bank broker | 319.8K | $819K | 0.0% | +204.7% |
| Meros Investment Management, LP ★2 | Fundamental diversified | 291.7K | $747K | 0.3% | New |
| RENAISSANCE TECHNOLOGIES LLC | Quant stat arb | 272.3K | $697K | 0.0% | +401.5% |
| GENDELL JEFFREY L ★2 | Fundamental diversified | 245.5K | $629K | 0.0% | -16.9% |
| Integrated Wealth Concepts LLC | Wealth advisor | 218.4K | $559K | 0.0% | New |
| MARSHALL WACE, LLP | Quant stat arb | 207.5K | $531K | 0.0% | -27.5% |
| GEODE CAPITAL MANAGEMENT, LLC | Index provider | 192.0K | $492K | 0.0% | +7.9% |
| RAYMOND JAMES FINANCIAL INC | Bank broker | 185.8K | $476K | 0.0% | +86.3% |
| BlackRock, Inc. | Index provider | 184.8K | $473K | 0.0% | -3.4% |
| CITADEL ADVISORS LLC | Multistrat pod | 147.5K | $378K | 0.0% | +201.5% |
| NEW YORK STATE COMMON RETIREMENT FUND | Diversified mechanical | 137.2K | $351K | 0.0% | Held |
| HighTower Advisors, LLC | Diversified mechanical | 132.7K | $340K | 0.0% | Held |
| JANE STREET GROUP, LLC | Market maker | 117.3K | $300K | 0.0% | -43.5% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Market maker | 109.5K | $280K | 0.0% | -63.9% |
| THOMPSON DAVIS & CO., INC. ★2 | Fundamental diversified | 99.0K | $253K | 0.2% | -17.8% |
| VANGUARD FIDUCIARY TRUST CO | Diversified mechanical | 96.4K | $247K | 0.0% | — |
| GSA CAPITAL PARTNERS LLP | Diversified mechanical | 94.2K | $241K | 0.0% | +384.6% |
| Granahan Investment Management, LLC | Other | 88.5K | $227K | 0.0% | -50.2% |
| GROUP ONE TRADING LLC | Market maker | 83.9K | $215K | 0.0% | +48.3% |
| Apis Capital Advisors, LLC ★2 | Fundamental concentrated | 77.0K | $197K | 0.0% | New |
| MORGAN STANLEY | Bank broker | 76.7K | $196K | 0.0% | +9.7% |
| STATE STREET CORP | Index provider | 69.2K | $177K | 0.0% | Held |
| TWO SIGMA INVESTMENTS, LP | Quant stat arb | 67.4K | $173K | 0.0% | -69.2% |
| PFG Investments, LLC | Diversified mechanical | 62.5K | $160K | 0.0% | Held |
| CORSAIR CAPITAL MANAGEMENT, L.P. ★2 | Fundamental diversified | 55.0K | $141K | 0.0% | Held |
| Diametric Capital, LP | Quant stat arb | 53.1K | $136K | 0.0% | -0.2% |
| SIMPLEX TRADING, LLC | Market maker | 41.3K | $106K | 0.0% | -11.2% |
| LPL Financial LLC | Bank broker | 41.3K | $106K | 0.0% | -44.1% |
| GAMCO INVESTORS, INC. ET AL | Other | 40.0K | $102K | 0.0% | Held |
| HARBOR CAPITAL ADVISORS, INC. | Diversified mechanical | 40.0K | $102K | 0.0% | -1.2% |
| NORTHERN TRUST CORP | Index provider | 37.7K | $96K | 0.0% | Held |
| Jump Financial, LLC | Market maker | 35.5K | $91K | 0.0% | New |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Diversified mechanical | 33.0K | $85K | 0.0% | +29.6% |
| GOLDMAN SACHS GROUP INC | Bank broker | 25.1K | $64K | 0.0% | -62.9% |
| GABELLI FUNDS LLC | Diversified mechanical | 20.0K | $51K | 0.0% | New |
| Pathstone Holdings, LLC | Diversified mechanical | 18.7K | $48K | 0.0% | Held |
| SHIKIAR ASSET MANAGEMENT INC ★2 | Fundamental diversified | 17.6K | $45K | 0.0% | +32.7% |
| COMMONWEALTH EQUITY SERVICES, LLC | Wealth advisor | 16.1K | $41K | 0.0% | +36.9% |
| HRT FINANCIAL LP | Diversified mechanical | 15.1K | $38K | 0.0% | New |
| IMC-Chicago, LLC | Market maker | 13.7K | $35K | 0.0% | -68.2% |
| DIMENSIONAL FUND ADVISORS LP | Quant stat arb | 11.2K | $29K | 0.0% | New |
| Tower Research Capital LLC (TRC) | Market maker | 10.2K | $26K | 0.0% | New |
| CITIZENS FINANCIAL GROUP INC/RI | Other | 10.0K | $26K | 0.0% | New |
Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.
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