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.
Q1 2026 vs. Q4 2025
How the institutions holding Tecogen Inc. changed between Q4 2025 and Q1 2026.
All holders in Q1 2026All holders in Q4 2025
| Measure | Q4 2025 | Of which not filed for Q1 2026 | Q1 2026 | Change |
|---|---|---|---|---|
| Holders | 65 | 1 | 62 | −2 |
| Shares | 7.62M | 871.8K | 7.79M | +1.04M (+15.4%) |
| Value | $37.6M | $4.31M | $19.9M | −$13.4M (−40.2%) |
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (15)
Institutions that held Tecogen Inc. at the end of Q1 2026 but not at the end of Q4 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Vanguard Capital Management LLC | 769,964 | $1.97M | 0.00% |
| Meros Investment Management, LP | 291,705 | $746.8K | 0.32% |
| Integrated Wealth Concepts LLC | 218,380 | $559.1K | 0.00% |
| Vanguard Fiduciary Trust Co | 96,442 | $246.9K | 0.00% |
| Apis Capital Advisors, LLC | 77,000 | $197.1K | 0.03% |
| Jump Financial, LLC | 35,500 | $90.9K | 0.00% |
| Gabelli Funds LLC | 20,000 | $51.2K | 0.00% |
| HRT Financial LP | 15,071 | $38.0K | 0.00% |
| Dimensional Fund Advisors LP | 11,163 | $28.6K | 0.00% |
| Tower Research Capital LLC (TRC) | 10,189 | $26.1K | 0.00% |
| Citizens Financial Group Inc | 10,000 | $25.6K | 0.00% |
| Vanguard Global Advisers, LLC | 5,434 | $13.9K | 0.00% |
| Advisory Services Network, LLC | 2,490 | $6.37K | 0.00% |
| UBS Asset Management Americas Inc | 1,583 | $4.05K | 0.00% |
| Fortitude Family Office, LLC | 181 | $463 | 0.00% |
Sold out (17)
Institutions that held Tecogen Inc. at the end of Q4 2025 and filed for Q1 2026 without it.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Point72 Asset Management, L.P. | 83,907 | $414.5K |
| Mangrove Partners | 61,207 | $302.4K |
| XTX Topco Ltd | 54,763 | $270.5K |
| Omers Administration Corp | 42,000 | $207.5K |
| J.W. Cole Advisors, Inc. | 26,300 | $129.9K |
| Quantbot Technologies LP | 22,820 | $112.7K |
| Millennium Management LLC | 22,507 | $111.2K |
| Hidden Cove Wealth Management, LLC | 21,087 | $104.2K |
| Ark Wealth Advisors LLC | 14,881 | $73.5K |
| Charles Schwab Investment Management Inc | 12,000 | $59.3K |
| Lighthouse Investment Partners, LLC | 10,920 | $53.9K |
| Bank of America Corp | 10,784 | $53.3K |
| Citigroup Inc | 8,535 | $42.2K |
| Advisor Group Holdings, Inc. | 500 | $2.47K |
| JPMorgan Chase & Co | 450 | $2.22K |
| BNP Paribas Arbitrage, SA | 214 | $1.06K |
| Laurel Wealth Advisors LLC | 45 | $223 |
Not filed for Q1 2026 yet (1)
Institutions that held Tecogen Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Vanguard Group Inc | 871,840 | $4.31M |