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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.

Q2 2025 vs. Q1 2025

How the institutions holding Tecogen Inc. changed between Q1 2025 and Q2 2025.

All holders in Q2 2025All holders in Q1 2025

13F holders of TGEN: Q1 2025 compared with Q2 2025
MeasureQ1 2025Q2 2025Change
Holders130+29
Shares12.5K3.87M+3.85M (+30,821.9%)
Value$28.0K$26.4M+$26.4M (+94,233.6%)

New holders (29)

Institutions that held Tecogen Inc. at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to TGEN in Q2 2025
InstitutionSharesValue% of portfolio
Vanguard Group Inc825,643$5.61M0.00%
Bard Associates Inc623,582$4.24M1.36%
Clear Harbor Asset Management, LLC610,000$4.15M0.31%
Portolan Capital Management, LLC465,571$3.17M0.20%
Herald Investment Management Ltd321,078$2.19M0.33%
BlackRock, Inc.184,779$1.26M0.00%
Integrated Wealth Concepts LLC177,250$1.21M0.01%
Geode Capital Management, LLC142,850$971.4K0.00%
Corsair Capital Management, L.P.67,760$460.8K0.09%
HighTower Advisors, LLC63,567$432.3K0.00%
PFG Investments, LLC62,523$425.2K0.02%
Royal Bank of Canada58,500$398.0K0.00%
Gamco Investors, Inc. Et Al42,000$285.6K0.00%
Gendell Jeffrey L41,700$283.6K0.01%
State Street Corp41,400$281.5K0.00%
Heron Bay Capital Management37,167$252.7K0.05%
Gordian Capital Singapore Pte Ltd15,089$193.4K0.29%
Northern Trust Corp25,737$175.0K0.00%
Pathstone Holdings, LLC18,725$127.3K0.00%
Advisory Services Network, LLC10,000$96.8K0.00%
Global Retirement Partners, LLC5,145$35.0K0.00%
Lazard Asset Management LLC1,329$9.00K0.00%
Morgan Stanley600$4.08K0.00%
Tower Research Capital LLC (TRC)496$3.37K0.00%
JPMorgan Chase & Co450$3.06K0.00%
SBI Securities Co., Ltd.117$7960.00%
Bank of America Corp116$7890.00%
MAI Capital Management64$4360.00%
UBS Group AG3$220.00%

Sold out (0)

Institutions that held Tecogen Inc. at the end of Q1 2025 and filed for Q2 2025 without it.

None.