Who owns Tecogen Inc.?
Institutional ownership of TGEN from SEC Form 13F filings across 40 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
40
13F holders
$20.8M
value, 2026 filers
13.5%
of shares outstanding (4.0M sh)
11
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of TGEN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 788,670 | $4.1M | 0.0% | 2.6% | -48.8% |
| 2 | UBS Group AG | 363,049 | $1.9M | 0.0% | 1.2% | +13.5% |
| 3 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 315,831 | $1.6M | 0.0% | 1.1% | +188.5% |
| 4 | MORGAN STANLEY | 301,695 | $1.6M | 0.0% | 1% | +293.2% |
| 5 | RAYMOND JAMES FINANCIAL INC | 290,260 | $1.5M | 0.0% | 1% | +56.2% |
| 6 | BlackRock, Inc. | 251,464 | $1.3M | 0.0% | 0.8% | +36.1% |
| 7 | CITADEL ADVISORS LLC | 242,276 | $1.3M | 0.0% | 0.8% | +64.3% |
| 8 | Huntleigh Advisors, Inc.NEW | 220,074 | $1.1M | 0.2% | 0.7% | new |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 180,870 | $944,802 | 0.0% | 0.6% | -5.8% |
| 10 | THOMPSON DAVIS & CO., INC. | 144,840 | $755,856 | 0.5% | 0.5% | +46.3% |
| 11 | NEW YORK STATE COMMON RETIREMENT FUND | 137,200 | $716,184 | 0.0% | 0.5% | 0.0% |
| 12 | Integrated Wealth Concepts LLC | 112,080 | $585,058 | 0.0% | 0.4% | -48.7% |
| 13 | VANGUARD FIDUCIARY TRUST CO | 105,956 | $553,090 | 0.0% | 0.4% | +9.9% |
| 14 | GOLDMAN SACHS GROUP INC | 69,530 | $362,946 | 0.0% | 0.2% | +176.9% |
| 15 | Diametric Capital, LP | 66,326 | $346,221 | 0.0% | 0.2% | +24.8% |
| 16 | PFG Investments, LLC | 62,523 | $326,370 | 0.0% | 0.2% | 0.0% |
| 17 | HRT FINANCIAL LP | 59,285 | $309 | 0.0% | 0.2% | +293.4% |
| 18 | MARSHALL WACE, LLP | 54,806 | $286,087 | 0.0% | 0.2% | -73.6% |
| 19 | JANE STREET GROUP, LLC | 49,087 | $256,234 | 0.0% | 0.2% | -58.2% |
| 20 | HighTower Advisors, LLC | 39,500 | $206,191 | 0.0% | 0.1% | -70.2% |
| 21 | NORTHERN TRUST CORP | 37,569 | $196,110 | 0.0% | 0.1% | -0.3% |
| 22 | Centiva Capital, LPNEW | 27,528 | $143,696 | 0.0% | 0.1% | new |
| 23 | Crewe Advisors LLCNEW | 23,000 | $120,060 | 0.0% | 0.1% | new |
| 24 | Pathstone Holdings, LLC | 18,725 | $97,745 | 0.0% | 0.1% | 0.0% |
| 25 | D. E. Shaw & Co., Inc.NEW | 15,339 | $80,070 | 0.0% | 0.1% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.