TGEN · Company research
Tecogen Inc. (TGEN): Ownership & Institutional Holders
Reported institutional positions. Filing dates and sources matter.
RESEARCH CONTEXT
Understand the numbers
Reported institutional positions. Filing dates and sources matter. Use period, currency, units and source fields when interpreting values.
71records availableEnergy
Ownership & Institutional Holders data
Database-backed records only
| holder name | cik | period end | shares held | market value | ownership percent | shares change | shares change percent | filing date | data source |
|---|---|---|---|---|---|---|---|---|---|
| HRT FINANCIAL LP | 1475597 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 59285 | 309 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| CITIZENS FINANCIAL GROUP INC/RI | 759944 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10000 | 52200 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| BlackRock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 184779 | 964546 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| Palisades Investment Partners, LLC | 1427373 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 323090 | 1686530 | — | — | — | Aug 4, 2026 | SEC_13F_DATASET |
| HEARTLAND ADVISORS INC | 937394 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 182100 | 950562 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Wealthspire Advisors, LLC | 1646247 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 11711 | 61131 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| CITIGROUP INC | 831001 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1602 | 8362 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| DIMENSIONAL FUND ADVISORS LP | 354204 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 11161 | 58260 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Belvedere Trading LLC | 1632341 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 15206 | 79375 | — | — | — | Jul 31, 2026 | SEC_13F_DATASET |
| Virtu Financial LLC | 1533964 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16377 | 85 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| HERALD INVESTMENT MANAGEMENT Ltd | 1512022 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 420000 | 2188200 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| Vanguard Global Advisers, LLC | 1811242 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5434 | 28365 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Pathstone Holdings, LLC | 2011612 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 18725 | 97745 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| COMMONWEALTH EQUITY SERVICES, LLC | 312272 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 13624 | 71120 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| ROYAL BANK OF CANADA | 1000275 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 200 | 1000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| CORSAIR CAPITAL MANAGEMENT, L.P. | 1276470 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 55017 | 287189 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Quadrature Capital Ltd | 1651424 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 14061 | 73398 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| Fortitude Family Office, LLC | 1950506 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 181 | 945 | — | — | — | Jul 20, 2026 | SEC_13F_DATASET |
| D. E. Shaw & Co., Inc. | 1009207 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 15339 | 80070 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| STATE STREET CORP | 93751 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 69226 | 361360 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| JANE STREET GROUP, LLC | 1595888 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 303800 | 1585836 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| RAYMOND JAMES FINANCIAL INC | 720005 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 290260 | 1515157 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 1141802 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 266 | 1389 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| CITADEL ADVISORS LLC | 1423053 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 242050 | 1263501 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| HighTower Advisors, LLC | 1462245 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 39500 | 206191 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| GENDELL JEFFREY L | 1056581 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 49823 | 260076 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Apis Capital Advisors, LLC | 1386892 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 112000 | 584640 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Bare Financial Services, Inc | 2009426 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 103 | 538 | — | — | — | Jul 27, 2026 | SEC_13F_DATASET |
| Huntleigh Advisors, Inc. | 1367653 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 220074 | 1148788 | — | — | — | Aug 4, 2026 | SEC_13F_DATASET |
| PFG Investments, LLC | 1973224 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 62523 | 326370 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| NORTHERN TRUST CORP | 73124 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 37569 | 196110 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| THOMPSON DAVIS & CO., INC. | 1017284 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 144840 | 755856 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| GEODE CAPITAL MANAGEMENT, LLC | 1214717 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 142445 | 744224 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Meros Investment Management, LP | 1911372 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 353487 | 1845202 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| BARD ASSOCIATES INC | 1105907 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 682221 | 3561194 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| XTX Topco Ltd | 1828301 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 32411 | 169185 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| GSA CAPITAL PARTNERS LLP | 1362033 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 126451 | 660 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| NEW YORK STATE COMMON RETIREMENT FUND | 810265 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 137200 | 716184 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| HOLLENCREST CAPITAL MANAGEMENT | 1161722 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 15 | 78 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Caitong International Asset Management Co., Ltd | 1963355 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1 | 5 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| Federation des caisses Desjardins du Quebec | 2022297 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 562 | 2934 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| GROUP ONE TRADING LLC | 932540 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 89200 | 465624 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Portolan Capital Management, LLC | 1350290 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1551113 | 8096810 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Diametric Capital, LP | 1719087 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 66326 | 346221 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 315831 | 1648638 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 1107261 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 33048 | 172511 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Bogart Wealth, LLC | 1715740 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 118 | 616 | — | — | — | Jul 24, 2026 | SEC_13F_DATASET |
| VANGUARD FIDUCIARY TRUST CO | 933478 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 105956 | 553090 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 788670 | 4116857 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| GAMCO INVESTORS, INC. ET AL | 807249 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 40000 | 208800 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Centiva Capital, LP | 1692507 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 27528 | 143696 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Integrated Wealth Concepts LLC | 1737109 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 112080 | 585058 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| MARSHALL WACE, LLP | 1318757 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 41397 | 216092 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Jefferies Financial Group Inc. | 96223 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 19300 | 100746 | — | — | — | Aug 17, 2026 | SEC_13F_DATASET |
| Clear Harbor Asset Management, LLC | 1511857 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 650000 | 3393000 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| MORGAN STANLEY | 895421 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 292467 | 1526678 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| SHIKIAR ASSET MANAGEMENT INC | 1058022 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 54050 | 282 | — | — | — | Jul 21, 2026 | SEC_13F_DATASET |
| Persistent Asset Partners Ltd | 2056052 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2271 | 11855 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| GOLDMAN SACHS GROUP INC | 886982 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 52160 | 272275 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| IMC-Chicago, LLC | 1452861 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 162400 | 847728 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| FMR LLC | 315066 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 53 | 279 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| GRATIA CAPITAL, LLC | 1599793 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 388660 | 2028805 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| UBS Group AG | 1610520 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 361355 | 1886273 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 861177 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1583 | 8263 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Crewe Advisors LLC | 1730033 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 23000 | 120060 | — | — | — | Jul 24, 2026 | SEC_13F_DATASET |
| SBI Securities Co., Ltd. | 1851815 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 110 | 574 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| PEAK6 LLC | 1389958 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 471900 | 2463318 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| SIMPLEX TRADING, LLC | 1488542 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 45700 | 238554 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| GABELLI FUNDS LLC | 1081407 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 20000 | 104400 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Arosa Capital Management LP | 1596053 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 125000 | 652500 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| NewEdge Advisors, LLC | 1633516 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4419 | 11313 | — | — | — | Jun 3, 2026 | SEC_13F_DATASET |
Informational research only, not financial advice. Forecasts are uncertain and can be wrong.