BALL M LEROY 4

What Happened
M. LeRoy Ball, CEO and a director of Koppers Holdings Inc., sold 2,659 shares of Koppers common stock in an open-market transaction on May 13, 2026. The shares were sold at $42.55 per share for total proceeds of $113,140. This was a sale (often routine) rather than a purchase, so it does not indicate additional insider buying conviction.

Key Details

• Transaction date: May 13, 2026 (reported on Form 4 filed May 14, 2026) — filing was submitted the next day and is timely under Form 4 rules.
• Price: $42.55 per share. Total proceeds: $113,140.
• Shares sold: 2,659 (transaction code S = Sale; listed as open-market or private sale).
• Shares owned after transaction: Not specified in the filed Form 4 (not reported in the transaction summary provided).
• Footnote: The filing notes inclusion of 496 shares acquired under the Koppers Employee Stock Purchase Plan on March 31, 2026; those acquisitions were exempt under Rule 16b-3(c) and 16b-3(d).

Context: Sales by executives can be routine (diversification, tax planning, or liquidity) and do not by themselves signal a change in company outlook. Purchases generally carry more weight for inferring insider confidence. No indication in the filing of a 10b5-1 plan, gift, option exercise, or late filing.