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Filing Detail
Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0000950170-23-070471
Filing Date
2023-12-14
Accepted
2023-12-14 17:15:04
Documents
1
Period of Report
2023-12-12

Document Format Files

Seq Description Document Type Size
1 4 ownership.html 4  
1 4 ownership.xml 4 4147
  Complete submission text file 0000950170-23-070471.txt   5563
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)

IRS No.: 201878963 | State of Incorp.: PA | Fiscal Year End: 1231
SIC: 2400 Lumber & Wood Products (No Furniture)

Mailing Address 436 SEVENTH AVENUE SUITE 1550 PITTSBURGH PA 15219
Business Address
Dowd Joseph P (Reporting) CIK: 0001553647 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-32737 | Film No.: 231487944