Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0002052113-25-001508
Filing Date
2025-04-23
Accepted
2025-04-23 20:57:57
Documents
3

Document Format Files

Seq Description Document Type Size
1 primary_doc.html SCHEDULE 13G/A  
1 primary_doc.xml SCHEDULE 13G/A 5502
2 EXHIBIT 24: POWER OF ATTORNEY PowerOfAttorney.txt EX-24 2796
3 EXHIBIT 99: ITEM 7 Item_7.txt EX-99 646
  Complete submission text file 0002052113-25-001508.txt   10862
Mailing Address 436 SEVENTH AVENUE PITTSBURGH PA 15219
Business Address 436 SEVENTH AVENUE PITTSBURGH PA 15219 412-227-2001
Koppers Holdings Inc. (Subject) CIK: 0001315257 (see all company filings)

EIN.: 201878963 | State of Incorp.: PA | Fiscal Year End: 1231
Type: SCHEDULE 13G/A | Act: 34 | File No.: 005-81507 | Film No.: 25863273
SIC: 2400 Lumber & Wood Products (No Furniture)
(CF Office: 04 Manufacturing)

Mailing Address 50 HUDSON YARDS NEW YORK NY 10001
Business Address 50 HUDSON YARDS NEW YORK NY 10001 (212) 810-5800
BlackRock, Inc. (Filed by) CIK: 0002012383 (see all company filings)

EIN.: 991116001 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SCHEDULE 13G/A
SIC: 6211 Security Brokers, Dealers & Flotation Companies
(CF Office: 02 Finance)