Filing

Form 4

Form 4

0001584601-26-000013·Koppers Holdings Inc.

Filing metadata

Accession number: 0001584601-26-000013
Form type: Form 4
Filer: Koppers Holdings Inc.
CIK: CIK 1315257
Filed: Sep 15, 2026
Reporting period: Sep 14, 2026
Description: Insider transaction

Documents

0001584601-26-000013-index.htm

Complete submission

0001584601-26-000013.txt

directory listing

Filed by

Koppers Holdings Inc.