Trade Summary

1 week ago, BALL M LEROY, serving as CEO at Koppers Holdings Inc. (KOP), sold 3,412 shares at $43.90 per share, for a total transaction value of $149,786.80. Following this transaction, BALL M LEROY now holds 436,243 shares of KOP.

This sale represents a 0.78% decrease in BALL M LEROY's stake in the company.

The trade was executed on Thursday, June 18, 2026 and publicly disclosed via SEC Form 4 filing on Tuesday, June 23, 2026 at 6:27 PM ET, 5 days after the trade was made.

Koppers Holdings Inc. operates in the BASIC MATERIALS sector, specifically within the SPECIALTY CHEMICALS industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.