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, Q4 2025
Institutional positions in Tecogen Inc. as of Dec 31, 2025. 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
- 65
- −4 vs. Q3 2025
- Shares held
- 7.62M
- −91.0K (−1.2%) vs. Q3 2025
- Total value
- $37.6M
- −$30.2M (−44.5%) vs. Q3 2025
- New holders
- 15
- 23 more added
- Sold out
- 19
- 16 more reduced
1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: 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 | $26.4M |
| 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, Q4 2025
Shares, value and share of portfolio for each institution holding Tecogen Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Laurel Wealth Advisors LLC | 45 | $223 | 0.00% | +45 | New |
| MAI Capital Management | 64 | $317 | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 88 | $435 | 0.00% | −10,212−99.1% | Reduced |
| SBI Securities Co., Ltd. | 117 | $578 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 214 | $1.06K | 0.00% | +214 | New |
| National Bank of Canada | 230 | $1.14K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 450 | $2.22K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 500 | $2.47K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 538 | $2.66K | 0.00% | +448+497.8% | Added |
| Federation des caisses Desjardins du Quebec | 562 | $2.78K | 0.00% | +562 | New |
| EverSource Wealth Advisors, LLC | 1,000 | $4.94K | 0.00% | −1,000−50.0% | Reduced |
| Citigroup Inc | 8,535 | $42.2K | 0.00% | +8,535 | New |
| Bank of America Corp | 10,784 | $53.3K | 0.00% | +5,948+123.0% | Added |
| Lighthouse Investment Partners, LLC | 10,920 | $53.9K | 0.00% | +10,920 | New |
| Commonwealth Equity Services, LLC | 11,774 | $58.2K | 0.00% | +11,774 | New |
| Charles Schwab Investment Management Inc | 12,000 | $59.3K | 0.00% | 00.0% | Unchanged |
| Shikiar Asset Management Inc | 13,300 | $66.0K | 0.02% | −5,200−28.1% | Reduced |
| Ark Wealth Advisors LLC | 14,881 | $73.5K | 0.08% | +14,881 | New |
| Pathstone Holdings, LLC | 18,725 | $92.5K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 19,432 | $96.0K | 0.01% | +19,432 | New |
| Hidden Cove Wealth Management, LLC | 21,087 | $104.2K | 0.07% | +7,045+50.2% | Added |
| Millennium Management LLC | 22,507 | $111.2K | 0.00% | −25,738−53.3% | Reduced |
| Quantbot Technologies LP | 22,820 | $112.7K | 0.00% | +22,820 | New |
| Bridgeway Capital Management, LLC | 25,500 | $126.0K | 0.00% | 00.0% | Unchanged |
| J.W. Cole Advisors, Inc. | 26,300 | $129.9K | 0.00% | −5,100−16.2% | Reduced |
| Northern Trust Corp | 37,681 | $186.1K | 0.00% | +11,944+46.4% | Added |
| Gamco Investors, Inc. Et Al | 40,000 | $197.6K | 0.00% | 00.0% | Unchanged |
| Harbor Capital Advisors, Inc. | 40,447 | $200.0K | 0.02% | +12,966+47.2% | Added |
| Omers Administration Corp | 42,000 | $207.5K | 0.00% | +42,000 | New |
| IMC-Chicago, LLC | 42,955 | $212.2K | 0.00% | +42,955 | New |
| Simplex Trading, LLC | 46,531 | $229.9K | 0.01% | +14,969+47.4% | Added |
| Citadel Advisors LLC | 48,920 | $241.7K | 0.00% | −164,788−77.1% | Reduced |
| Diametric Capital, LP | 53,227 | $262.9K | 0.07% | +22,486+73.1% | Added |
| Renaissance Technologies LLC | 54,300 | $268.2K | 0.00% | −47,900−46.9% | Reduced |
| XTX Topco Ltd | 54,763 | $270.5K | 0.01% | +54,763 | New |
| Corsair Capital Management, L.P. | 55,017 | $271.8K | 0.04% | +170.0% | Added |
| Group One Trading, L.P. | 56,578 | $279.5K | 0.01% | +22,626+66.6% | Added |
| Mangrove Partners | 61,207 | $302.4K | 0.02% | +61,207 | New |
| PFG Investments, LLC | 62,523 | $308.9K | 0.01% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 67,724 | $334.6K | 0.00% | −65,038−49.0% | Reduced |
| State Street Corp | 69,226 | $342.0K | 0.00% | −500−0.7% | Reduced |
| Morgan Stanley | 69,978 | $345.7K | 0.00% | +47,593+212.6% | Added |
| LPL Financial LLC | 73,793 | $364.5K | 0.00% | +73,793 | New |
| Point72 Asset Management, L.P. | 83,907 | $414.5K | 0.00% | +83,907 | New |
| Royal Bank of Canada | 85,545 | $423.0K | 0.00% | −36,844−30.1% | Reduced |
| Raymond James Financial Inc | 99,754 | $492.8K | 0.00% | −58,134−36.8% | Reduced |
| UBS Group AG | 104,959 | $518.5K | 0.00% | +95,371+994.7% | Added |
| Thompson Davis & Co., Inc. | 120,450 | $595.0K | 0.36% | +2,497+2.1% | Added |
| HighTower Advisors, LLC | 132,665 | $655.4K | 0.00% | +69,598+110.4% | Added |
| New York State Common Retirement Fund | 137,200 | $677.8K | 0.00% | 00.0% | Unchanged |
| Granahan Investment Management Inc | 177,822 | $878.4K | 0.04% | +65,484+58.3% | Added |
| Geode Capital Management, LLC | 177,914 | $879.5K | 0.00% | +11,357+6.8% | Added |
| BlackRock, Inc. | 191,360 | $945.3K | 0.00% | +6,581+3.6% | Added |
| Jane Street Group, LLC | 207,607 | $1.03M | 0.00% | +114,497+123.0% | Added |
| Two Sigma Investments, LP | 218,628 | $1.08M | 0.00% | −28,077−11.4% | Reduced |
| Marshall Wace, LLP | 286,325 | $1.41M | 0.00% | +237,236+483.3% | Added |
| Gendell Jeffrey L | 295,541 | $1.46M | 0.03% | +51,919+21.3% | Added |
| Susquehanna International Group, LLP | 302,911 | $1.50M | 0.00% | +50,876+20.2% | Added |
| Arosa Capital Management LP | 350,000 | $1.73M | 1.11% | +62,500+21.7% | Added |
| Palisades Investment Partners, LLC | 390,212 | $1.93M | 0.73% | +13,618+3.6% | Added |
| Herald Investment Management Ltd | 420,000 | $2.08M | 0.27% | −26,078−5.8% | Reduced |
| Portolan Capital Management, LLC | 445,810 | $2.20M | 0.12% | −149,996−25.2% | Reduced |
| Clear Harbor Asset Management, LLC | 610,000 | $3.01M | 0.21% | −1,600−0.3% | Reduced |
| Bard Associates Inc | 689,107 | $3.40M | 0.87% | −1,504−0.2% | Reduced |
| Vanguard Group Inc | 871,840 | $4.31M | 0.00% | +1,400+0.2% | Added |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −216,465−100.0% | Sold out |
| Apis Capital Advisors, LLC | 0 | $0 | 0.00% | −153,000−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −94,696−100.0% | Sold out |
| EAM Investors, LLC | 0 | $0 | 0.00% | −74,101−100.0% | Sold out |
| Manatuck Hill Partners, LLC | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| ARS Investment Partners, LLC | 0 | $0 | 0.00% | −43,173−100.0% | Sold out |
| Heron Bay Capital Management | 0 | $0 | 0.00% | −37,167−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −36,200−100.0% | Sold out |
| Evernest Financial Advisors, LLC | 0 | $0 | 0.00% | −34,150−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −20,036−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −15,234−100.0% | Sold out |
| Gordian Capital Singapore Pte Ltd | 0 | $0 | 0.00% | −14,700−100.0% | Sold out |
| Marex Group plc | 0 | $0 | 0.00% | −14,700−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −12,500−100.0% | Sold out |
| Calamos Advisors LLC | 0 | $0 | 0.00% | −12,479−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| CoreCap Advisors, LLC | 0 | $0 | 0.00% | −4,944−100.0% | Sold out |
| Altshuler Shaham Ltd | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| ORG Partners LLC | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Wolverine Trading, LLC | – | – | – | – | Not filed |