Apostolou Stephanie L sold KOP
January 5, 2026 · Form 4 insider transaction
Apostolou Stephanie L sold 5,757 shares of Koppers Holdings Inc. at $26.93 per share, a transaction worth $155.0K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 1 day after the transaction.
Direction
Disposed (sell-side)
Shares
5,757
Price
$26.93
Total value
$155.0K
InsiderApostolou Stephanie L
Role—
CompanyKoppers Holdings Inc. (KOP)
SecurityCommon Stock
Transaction codeF: Shares withheld for taxes
Transaction dateJanuary 5, 2026
Filing dateJanuary 6, 2026
Shares owned after58,902
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 RSUs and performance share units ("PSUs").