4 | SEC Filings Hub

Filing metadata

Accession number: 0002092070-26-000002
Form type: Form 4
Filer: Koppers Holdings Inc.
CIK: CIK 1315257
Filed: Mar 25, 2026
Reporting period: Mar 23, 2026
Description: Insider transaction

Documents

0002092070-26-000002-index.htm

Complete submission

0002092070-26-000002.txt

directory listing

Filed by

Koppers Holdings Inc.