Form4insider filings, from the source

SEC Form 4 · accession 0001584601-26-000011

Koppers Holdings Inc. · KOP

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

Reporting owner
Period of report
Jun 15, 2026
Accepted (ET)
Jun 17, 2026 · 4:05 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001315257

Table I — non-derivative securities

No Table I lines on this filing.

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
Dividend Equivalent RightsF1,F2—Jun 15, 2026A21A——Common Stock21296D

Explanation of responses