Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000102909-25-000256
Filing Date
2025-10-31
Accepted
2025-10-31 11:04:23
Documents
1

Document Format Files

Seq Description Document Type Size
1 primary_doc.html SCHEDULE 13G/A  
1 primary_doc.xml SCHEDULE 13G/A 4482
  Complete submission text file 0000102909-25-000256.txt   6216
Mailing Address PO BOX 2600 V26 VALLEY FORGE PA 19482-2600
Business Address 100 VANGUARD BLVD MALVERN PA 19355 6106691000
VANGUARD GROUP INC (Filed by) CIK: 0000102909 (see all company filings)

EIN.: 231945930 | State of Incorp.: PA | Fiscal Year End: 1231
Type: SCHEDULE 13G/A

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.: 251438825
SIC: 2400 Lumber & Wood Products (No Furniture)
(CF Office: 04 Manufacturing)