SEC Form 4 · accession 0001229771-26-000020
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
Aug 31, 2026
Accepted (ET)
Sep 1, 2026 · 4:23 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001315257
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Aug 31, 2026 | S | 4,000 | $45.96 | D | 429,555 | D | |
| Common Stock | Aug 31, 2026 | G | 200 | $0.00 | D | 429,355 | D |
Table II — derivative securities
No Table II lines on this filing.