Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001229771-26-000020
Filing Date
2026-09-01
Accepted
2026-09-01 16:23:23
Documents
1
Period of Report
2026-08-31

Document Format Files

Seq Description Document Type Size
1 FORM 4 wk-form4_1788294201.html 4  
1 FORM 4 wk-form4_1788294201.xml 4 4532
  Complete submission text file 0001229771-26-000020.txt   6013
Mailing Address 436 SEVENTH AVENUE PITTSBURGH PA 15219
Business Address
BALL M LEROY (Reporting) CIK: 0001229771 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-32737 | Film No.: 261351166

Mailing Address 436 SEVENTH AVENUE PITTSBURGH PA 15219
Business Address 436 SEVENTH AVENUE PITTSBURGH PA 15219 412-227-2001
Koppers Holdings Inc. (Issuer) CIK: 0001315257 (see all company filings)

EIN.: 201878963 | State of Incorp.: PA | Fiscal Year End: 1231
SIC: 2400 Lumber & Wood Products (No Furniture)
(CF Office: 04 Manufacturing)