Koppers SVP Culture and Engagement Stephen G. Lucas sells 1,308 shares for $58,301.4

• Koppers Holdings officer Stephen G. Lucas, SVP, Culture and Engagement, sold 1,308 common shares on Aug. 12, 2026.
• Sale priced at USD 44.55 per share on a weighted-average basis.
• Direct holdings fell to 34,345 shares following the transaction.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Koppers Holdings Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001919175-26-000008), on August 13, 2026, and is solely responsible for the information contained therein.