February 26, 2026 · Form 4 insider transaction
BALL M LEROY sold 22,236 shares of KOPPERS HOLDINGS INC at $37.24 per share, a transaction worth $828.1K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 4 days after the transaction.
Shares surrendered to the issuer by the reporting person as payment for the tax withholding related to the vesting of PSUs.