Form4insider filings, from the source

SEC Form 4 · accession 0001315257-26-000043

Koppers Holdings Inc. · KOP

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

Reporting owner
Xudong Feng
Director
Period of report
Jun 3, 2026
Accepted (ET)
Jun 4, 2026 · 4:05 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001315257

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Common StockJun 3, 2026G5,695$0.00D26,489D

Table II — derivative securities

No Table II lines on this filing.