At the end of Q2 2025, 30 institutions reported holding Tecogen Inc./Waltham Ma (TGEN) in their 13F filings, up 29 from Q1 2025. 29 opened new positions and 0 sold out. The largest holders were Vanguard Group Inc. ($5.6M), Bard Associates Inc. ($4.2M) and Clear Harbor Asset Management, LLC ($4.1M). One famous investor held it Mario Gabelli (0.0% of GAMCO Investors's portfolio).
Company
Tecogen Inc./Waltham Ma
CUSIP
87876P201
Latest filing quarter
Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
Institutions
Total Value
New Positions
29
$26.2M
Exits
0
$0
All 13F filers, Q1 2025 → Q2 2025: 3,847,596 shares bought, net +3,847,596 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.