KOPPERS HOLDINGS INC

Ticker: KOP CUSIP: 50060P106 Class: Common Stock

Weiss Asset Management LP's Holding History (CIK: 0001357550)

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

Q3 2025

Shares 14,412 Value ($000) $404 Avg Close $30.64 Range $26.64 - $35.42

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	14,412	$404	$30.64	$26.64 - $35.42