Trade Summary

Yesterday, Ball M Leroy, serving as CEO at Koppers Holdings Inc. (KOP), sold 2,659 shares at $42.55 per share, for a total transaction value of $113,140.00. Following this transaction, Ball M Leroy now holds 444,096 shares of KOP.

This sale represents a 1.00% decrease in Ball M Leroy's stake in the company. This is considered a medium-conviction trade.

The trade was executed on Wednesday, May 13, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, May 14, 2026 at 4:02 PM ET, 1 day 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.