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GAMCO INVESTORS, INC. ET AL

Position in KOP — Koppers Holdings Inc.

CIK 807249 GREENWICH, CT

Position in KOP

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$1,114,525
+$282,790 QoQ
Shares Held
28,814
-6.2% QoQ
Ownership
0.150%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2025
4 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in KOP Over Time

Shares Held

Position Value (USD)

Position in Specialty Chemicals

Basic Materials · as of Mar 31, 2026

GAMCO INVESTORS, INC. ET AL holds $200,213,876 across 24 Specialty Chemicals names. KOP ranks #18 (0.6% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in KOP

Export CSV
4 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $1,114,525 28,814
2025-12-31 $831,735 30,714
2025-09-30 $1,167,992 41,714
2025-06-30 $1,527,575 47,514