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, Q1 2026
Institutional positions in Tecogen Inc. as of Mar 31, 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
- 62
- −2 vs. Q4 2025
- Shares held
- 7.79M
- +1.04M (+15.4%) vs. Q4 2025
- Total value
- $19.9M
- −$13.4M (−40.2%) vs. Q4 2025
- New holders
- 15
- 16 more added
- Sold out
- 17
- 19 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Tecogen Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| MAI Capital Management | 64 | $164 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 120 | $307 | 0.00% | +3+2.6% | Added |
| Fortitude Family Office, LLC | 181 | $463 | 0.00% | +181 | New |
| State of Wyoming | 494 | $1.26K | 0.00% | −44−8.2% | Reduced |
| National Bank of Canada | 500 | $1.28K | 0.00% | +270+117.4% | Added |
| Federation des caisses Desjardins du Quebec | 562 | $1.44K | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 1,583 | $4.05K | 0.00% | +1,583 | New |
| Advisory Services Network, LLC | 2,490 | $6.37K | 0.00% | +2,490 | New |
| EverSource Wealth Advisors, LLC | 2,500 | $6.40K | 0.00% | +1,500+150.0% | Added |
| Royal Bank of Canada | 3,143 | $8.00K | 0.00% | −82,402−96.3% | Reduced |
| GWM Advisors LLC | 4,419 | $11.3K | 0.00% | +4,331+4,921.6% | Added |
| Vanguard Global Advisers, LLC | 5,434 | $13.9K | 0.00% | +5,434 | New |
| Citizens Financial Group Inc | 10,000 | $25.6K | 0.00% | +10,000 | New |
| Tower Research Capital LLC (TRC) | 10,189 | $26.1K | 0.00% | +10,189 | New |
| Dimensional Fund Advisors LP | 11,163 | $28.6K | 0.00% | +11,163 | New |
| IMC-Chicago, LLC | 13,650 | $34.9K | 0.00% | −29,305−68.2% | Reduced |
| HRT Financial LP | 15,071 | $38.0K | 0.00% | +15,071 | New |
| Commonwealth Equity Services, LLC | 16,124 | $41.3K | 0.00% | +4,350+36.9% | Added |
| Shikiar Asset Management Inc | 17,650 | $45.0K | 0.01% | +4,350+32.7% | Added |
| Pathstone Holdings, LLC | 18,725 | $47.9K | 0.00% | 00.0% | Unchanged |
| Gabelli Funds LLC | 20,000 | $51.2K | 0.00% | +20,000 | New |
| Goldman Sachs Group Inc | 25,106 | $64.3K | 0.00% | −42,618−62.9% | Reduced |
| Bridgeway Capital Management, LLC | 33,048 | $84.6K | 0.00% | +7,548+29.6% | Added |
| Jump Financial, LLC | 35,500 | $90.9K | 0.00% | +35,500 | New |
| Northern Trust Corp | 37,681 | $96.5K | 0.00% | 00.0% | Unchanged |
| Harbor Capital Advisors, Inc. | 39,973 | $102.0K | 0.01% | −474−1.2% | Reduced |
| Gamco Investors, Inc. Et Al | 40,000 | $102.4K | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 41,251 | $105.6K | 0.00% | −32,542−44.1% | Reduced |
| Simplex Trading, LLC | 41,332 | $105.8K | 0.00% | −5,199−11.2% | Reduced |
| Diametric Capital, LP | 53,131 | $136.0K | 0.04% | −96−0.2% | Reduced |
| Corsair Capital Management, L.P. | 55,017 | $140.8K | 0.02% | 00.0% | Unchanged |
| PFG Investments, LLC | 62,523 | $160.1K | 0.01% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 67,418 | $172.6K | 0.00% | −151,210−69.2% | Reduced |
| State Street Corp | 69,226 | $177.2K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 76,736 | $196.4K | 0.00% | +6,758+9.7% | Added |
| Apis Capital Advisors, LLC | 77,000 | $197.1K | 0.03% | +77,000 | New |
| Group One Trading, L.P. | 83,922 | $214.8K | 0.01% | +27,344+48.3% | Added |
| Granahan Investment Management Inc | 88,496 | $226.6K | 0.01% | −89,326−50.2% | Reduced |
| Gsa Capital Partners LLP | 94,170 | $241.0K | 0.01% | +74,738+384.6% | Added |
| Vanguard Fiduciary Trust Co | 96,442 | $246.9K | 0.00% | +96,442 | New |
| Thompson Davis & Co., Inc. | 99,000 | $253.4K | 0.17% | −21,450−17.8% | Reduced |
| Susquehanna International Group, LLP | 109,457 | $280.2K | 0.00% | −193,454−63.9% | Reduced |
| Jane Street Group, LLC | 117,342 | $300.4K | 0.00% | −90,265−43.5% | Reduced |
| HighTower Advisors, LLC | 132,665 | $339.6K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 137,200 | $351.2K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 147,472 | $377.5K | 0.00% | +98,552+201.5% | Added |
| BlackRock, Inc. | 184,779 | $473.0K | 0.00% | −6,581−3.4% | Reduced |
| Raymond James Financial Inc | 185,794 | $475.6K | 0.00% | +86,040+86.3% | Added |
| Geode Capital Management, LLC | 192,002 | $491.8K | 0.00% | +14,088+7.9% | Added |
| Marshall Wace, LLP | 207,467 | $531.1K | 0.00% | −78,858−27.5% | Reduced |
| Integrated Wealth Concepts LLC | 218,380 | $559.1K | 0.00% | +218,380 | New |
| Gendell Jeffrey L | 245,541 | $628.6K | 0.01% | −50,000−16.9% | Reduced |
| Renaissance Technologies LLC | 272,300 | $697.1K | 0.00% | +218,000+401.5% | Added |
| Meros Investment Management, LP | 291,705 | $746.8K | 0.32% | +291,705 | New |
| UBS Group AG | 319,836 | $818.8K | 0.00% | +214,877+204.7% | Added |
| Palisades Investment Partners, LLC | 333,907 | $854.8K | 0.34% | −56,305−14.4% | Reduced |
| Arosa Capital Management LP | 350,000 | $896.0K | 0.58% | 00.0% | Unchanged |
| Herald Investment Management Ltd | 420,000 | $1.08M | 0.15% | 00.0% | Unchanged |
| Portolan Capital Management, LLC | 443,555 | $1.14M | 0.06% | −2,255−0.5% | Reduced |
| Clear Harbor Asset Management, LLC | 650,000 | $1.66M | 0.12% | +40,000+6.6% | Added |
| Bard Associates Inc | 688,309 | $1.76M | 0.44% | −798−0.1% | Reduced |
| Vanguard Capital Management LLC | 769,964 | $1.97M | 0.00% | +769,964 | New |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −83,907−100.0% | Sold out |
| Mangrove Partners | 0 | $0 | 0.00% | −61,207−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −54,763−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −42,000−100.0% | Sold out |
| J.W. Cole Advisors, Inc. | 0 | $0 | 0.00% | −26,300−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −22,820−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −22,507−100.0% | Sold out |
| Hidden Cove Wealth Management, LLC | 0 | $0 | 0.00% | −21,087−100.0% | Sold out |
| Ark Wealth Advisors LLC | 0 | $0 | 0.00% | −14,881−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −12,000−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −10,920−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −10,784−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −8,535−100.0% | Sold out |
| Advisor Group Holdings, Inc. | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| JPMorgan Chase & Co | 0 | $0 | 0.00% | −450−100.0% | Sold out |
| BNP Paribas Arbitrage, SA | 0 | $0 | 0.00% | −214−100.0% | Sold out |
| Laurel Wealth Advisors LLC | 0 | $0 | 0.00% | −45−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |