Insider Trading & Ownership of M. LEROY BALL

Location: Pittsburgh, PA
Summary: The estimated net worth of M. LEROY BALL is at least $14,258,712 dollars as of 17 Dec 2025. M. LEROY BALL is the CEO, Director of Koppers Holdings Inc. and owns shares of Koppers Holdings Inc. (KOP) stock worth about $10.89M. M. LEROY BALL is the Director of ATI INC and owns shares of ATI INC (ATI) stock worth about $3.37M.
Signature: /s/ Stephanie L. Apostolou, Attorney in Fact
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Ownership of M. LEROY BALL

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
KOP	Koppers Holdings Inc.	CEO, Director	$10,890,760	-$185,383	-1.7%	16 Dec 2025
ATI	ATI INC	Director	$3,367,952			19 Nov 2025

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.