Form4insider filings, from the source

SEC Form 4 · accession 0001229771-26-000013

Koppers Holdings Inc. · KOP

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner
M Leroy Ball
Officer — CEO · Director
Period of report
Jun 11, 2026
Accepted (ET)
Jun 15, 2026 · 4:10 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001315257

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Common StockF1Jun 11, 2026S4,141$41.34D439,955D
Common StockJun 11, 2026G300$0.00D439,655D

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses