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GAMCO INVESTORS, INC. ET AL

Position in TGEN — Tecogen Inc.

CIK 807249 GREENWICH, CT

Position in TGEN

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$208,800
+$106,400 QoQ
Shares Held
40,000
0.0% QoQ
Ownership
0.133%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#37
of 69 holders
Holding Since
Mar 2020
7 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in TGEN Over Time

Shares Held

Position Value (USD)

Position in Electrical Equipment & Parts

Industrials · as of Jun 30, 2026

GAMCO INVESTORS, INC. ET AL holds $46,913,379 across 7 Electrical Equipment & Parts names. TGEN ranks #7 (0.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 TGEN
Tecogen Inc.
This page
40,000 $208,800

All Filings in TGEN

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $208,800 40,000
2026-03-31 $102,400 40,000
2025-12-31 $197,600 40,000
2025-09-30 $352,400 40,000
2025-06-30 $285,600 42,000
2020-06-30 $32,501 46,430
2020-03-31 $43,179 46,430