Koppers Has Released Our 2024 Corporate Sustainability Report!

SEC Filing Details

Document Details

Form
Filing Date
Feb 12, 2026
Document Date
Feb 10, 2026
Form Description
Statement of changes in beneficial ownership of securities
Filing Group
3,4,5
Company
Koppers Holdings, Inc.
Issuer
Koppers Holdings Inc.
Filer
BALL M LEROY