Apostolou Stephanie L sold KOP
February 26, 2026 · Form 4 insider transaction
Apostolou Stephanie L sold 3,149 shares of Koppers Holdings Inc. at $37.24 per share, a transaction worth $117.3K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 4 days after the transaction.
Direction
Disposed (sell-side)
Shares
3,149
Price
$37.24
Total value
$117.3K
InsiderApostolou Stephanie L
Role—
CompanyKoppers Holdings Inc. (KOP)
SecurityCommon Stock
Transaction codeF: Shares withheld for taxes
Transaction dateFebruary 26, 2026
Filing dateMarch 2, 2026
Shares owned after63,150
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Shares surrendered to the issuer by the reporting person as payment for the tax withholding related to the vesting of PSUs.