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GAMCO INVESTORS, INC. ET AL

Position in TGEN — Tecogen Inc.

CIK 807249 GREENWICH, CT

Position in TGEN

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$102,400
-$95,200 QoQ
Shares Held
40,000
0.0% QoQ
Ownership
0.134%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
6 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 Mar 31, 2026

GAMCO INVESTORS, INC. ET AL holds $37,636,792 across 7 Electrical Equipment & Parts names. TGEN ranks #7 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 TGEN
Tecogen Inc.
This page
40,000 $102,400

All Filings in TGEN

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6 filing rows on record
Report Date Value (USD) Shares
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