KOPPERS HOLDINGS INC

Ticker: KOP CUSIP: 50060P106 Class: Common Stock

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 30,714 Value ($000) $832 Avg Close $27.92 Range $24.93 - $30.27

Q3 2025

Shares 41,714 Value ($000) $1,168 Avg Close $30.64 Range $26.64 - $35.42

Q2 2025

Shares 47,514 Value ($000) $1,528 Avg Close $28.51 Range $22.81 - $33.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	30,714	$832	$27.92	$24.93 - $30.27
Q3 2025	41,714	$1,168	$30.64	$26.64 - $35.42
Q2 2025	47,514	$1,528	$28.51	$22.81 - $33.40