Tecogen Inc.
TGEN- Exchange
- NYSE
- Industry
- Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip
- SEC CIK
- 0001537435
No open-market purchases or sales by Tecogen Inc. insiders were filed in the last 90 days; 69 institutions reported holding it in 13F filings for Q2 2026, worth $49.5M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Tecogen Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 69
- +7 vs. Q1 2026
- Shares held
- 9.48M
- +1.69M (+21.7%) vs. Q1 2026
- Total value
- $49.5M
- +$29.5M (+148.2%) vs. Q1 2026
- New holders
- 20
- 18 more added
- Sold out
- 13
- 15 more reduced
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TGEN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 69 | $49.5M |
| Q1 2026 | 62 | $19.9M |
| Q4 2025 | 65 | $37.6M |
| Q3 2025 | 70 | $68.0M |
| Q2 2025 | 30 | $26.8M |
| Q1 2025 | 1 | $28.0K |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 1 | $260.1K |
| Q3 2023 | 1 | $272.9K |
| Q2 2023 | 1 | $320.9K |
| Q1 2023 | 1 | $381.3K |
| Q4 2022 | 1 | $401.0K |
| Q3 2022 | 1 | $304.0K |
| Q2 2022 | 1 | $362.0K |
| Q1 2022 | 1 | $529.0K |
| Q4 2021 | 2 | $397.0K |
| Q3 2021 | 1 | $581.0K |
| Q2 2021 | 1 | $600.0K |
| Q1 2021 | 1 | $545.0K |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Tecogen Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Portolan Capital Management, LLC | 1,551,113 | $8.10M | 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 |
| Gratia Capital, LLC | 388,660 | $2.03M | 2.33% | +388,660 | New |
| UBS Group AG | 363,049 | $1.90M | 0.00% | +43,213+13.5% | Added |
| Meros Investment Management, LP | 353,487 | $1.85M | 0.59% | +61,782+21.2% | Added |
| Palisades Investment Partners, LLC | 323,090 | $1.69M | 0.48% | −10,817−3.2% | Reduced |
| Susquehanna International Group, LLP | 315,831 | $1.65M | 0.00% | +206,374+188.5% | Added |
| Morgan Stanley | 301,695 | $1.57M | 0.00% | +224,959+293.2% | Added |
| Raymond James Financial Inc | 290,260 | $1.52M | 0.00% | +104,466+56.2% | Added |
| BlackRock, Inc. | 251,464 | $1.31M | 0.00% | +66,685+36.1% | Added |
| Citadel Advisors LLC | 242,276 | $1.26M | 0.00% | +94,804+64.3% | Added |
| Huntleigh Advisors, Inc. | 220,074 | $1.15M | 0.16% | +220,074 | New |
| Heartland Advisors Inc | 182,100 | $950.6K | 0.04% | +182,100 | New |
| Geode Capital Management, LLC | 180,870 | $944.8K | 0.00% | −11,132−5.8% | Reduced |
| Thompson Davis & Co., Inc. | 144,840 | $755.9K | 0.45% | +45,840+46.3% | Added |
| New York State Common Retirement Fund | 137,200 | $716.2K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 126,451 | $660.0K | 0.04% | +32,281+34.3% | Added |
| Arosa Capital Management LP | 125,000 | $652.5K | 0.57% | −225,000−64.3% | Reduced |
| Integrated Wealth Concepts LLC | 112,080 | $585.1K | 0.00% | −106,300−48.7% | Reduced |
| Apis Capital Advisors, LLC | 112,000 | $584.6K | 0.06% | +35,000+45.5% | Added |
| Vanguard Fiduciary Trust Co | 105,956 | $553.1K | 0.00% | +9,514+9.9% | Added |
| Goldman Sachs Group Inc | 69,530 | $362.9K | 0.00% | +44,424+176.9% | Added |
| State Street Corp | 69,226 | $361.4K | 0.00% | 00.0% | Unchanged |
| Diametric Capital, LP | 66,326 | $346.2K | 0.04% | +13,195+24.8% | Added |
| PFG Investments, LLC | 62,523 | $326.4K | 0.01% | 00.0% | Unchanged |
| IMC-Chicago, LLC | 61,800 | $322.6K | 0.00% | +48,150+352.7% | Added |
| HRT Financial LP | 59,285 | $309.0K | 0.00% | +44,214+293.4% | Added |
| Corsair Capital Management, L.P. | 55,017 | $287.2K | 0.04% | 00.0% | Unchanged |
| Marshall Wace, LLP | 54,806 | $286.1K | 0.00% | −152,661−73.6% | Reduced |
| Shikiar Asset Management Inc | 54,050 | $282.0K | 0.07% | +36,400+206.2% | Added |
| Group One Trading, L.P. | 49,872 | $260.3K | 0.01% | −34,050−40.6% | Reduced |
| Gendell Jeffrey L | 49,823 | $260.1K | 0.00% | −195,718−79.7% | Reduced |
| Jane Street Group, LLC | 49,087 | $256.2K | 0.00% | −68,255−58.2% | Reduced |
| Gamco Investors, Inc. Et Al | 40,000 | $208.8K | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 39,500 | $206.2K | 0.00% | −93,165−70.2% | Reduced |
| Northern Trust Corp | 37,569 | $196.1K | 0.00% | −112−0.3% | Reduced |
| Bridgeway Capital Management, LLC | 33,048 | $172.5K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 32,411 | $169.2K | 0.00% | +32,411 | New |
| Centiva Capital, LP | 27,528 | $143.7K | 0.00% | +27,528 | New |
| Crewe Advisors LLC | 23,000 | $120.1K | 0.01% | +23,000 | New |
| Gabelli Funds LLC | 20,000 | $104.4K | 0.00% | 00.0% | Unchanged |
| Jefferies Financial Group Inc. | 19,300 | $100.7K | 0.00% | +19,300 | New |
| Pathstone Holdings, LLC | 18,725 | $97.7K | 0.00% | 00.0% | Unchanged |
| Virtu Financial LLC | 16,377 | $85.0K | 0.00% | +16,377 | New |
| D. E. Shaw & Co., Inc. | 15,339 | $80.1K | 0.00% | +15,339 | New |
| Belvedere Trading LLC | 15,206 | $79.4K | 0.01% | +15,206 | New |
| Quadrature Capital Ltd | 14,061 | $73.4K | 0.00% | +14,061 | New |
| Commonwealth Equity Services, LLC | 13,624 | $71.1K | 0.00% | −2,500−15.5% | Reduced |
| Wealthspire Advisors, LLC | 11,711 | $61.1K | 0.00% | +11,711 | New |
| Dimensional Fund Advisors LP | 11,163 | $58.3K | 0.00% | 00.0% | Unchanged |
| Citizens Financial Group Inc | 10,000 | $52.2K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 5,434 | $28.4K | 0.00% | 00.0% | Unchanged |
| Persistent Asset Partners Ltd | 2,271 | $11.9K | 0.00% | +2,271 | New |
| Citigroup Inc | 1,602 | $8.36K | 0.00% | +1,602 | New |
| UBS Asset Management Americas Inc | 1,583 | $8.26K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 562 | $2.93K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 479 | $2.50K | 0.00% | −40,853−98.8% | Reduced |
| Northwestern Mutual Wealth Management Co | 266 | $1.39K | 0.00% | +266 | New |
| Royal Bank of Canada | 227 | $1.00K | 0.00% | −2,916−92.8% | Reduced |
| Fortitude Family Office, LLC | 181 | $945 | 0.00% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 118 | $616 | 0.00% | +118 | New |
| SBI Securities Co., Ltd. | 110 | $574 | 0.00% | −10−8.3% | Reduced |
| Bare Financial Services, Inc | 103 | $538 | 0.00% | +103 | New |
| FMR LLC | 53 | $279 | 0.00% | +53 | New |
| Hollencrest Capital Management | 15 | $78 | 0.00% | +15 | New |
| Caitong International Asset Management Co., Ltd | 1 | $5 | 0.00% | +1 | New |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −272,300−100.0% | Sold out |
| Granahan Investment Management Inc | 0 | $0 | 0.00% | −88,496−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −67,418−100.0% | Sold out |
| LPL Financial LLC | 0 | $0 | 0.00% | −41,251−100.0% | Sold out |
| Harbor Capital Advisors, Inc. | 0 | $0 | 0.00% | −39,973−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −35,500−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −10,189−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −4,419−100.0% | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −2,500−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −2,490−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −494−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −64−100.0% | Sold out |