NYSE:KOP | News — Page 3 | Koppers Holdings Inc.

KOP News — Page 3

Official issuer or fund updates, exact SEC current reports, and large established publisher coverage, newest first. Every lawfully retained item remains in the corpus; each public page contains at most 100 rows. Headlines open the exact source; summaries are concise descriptions and not investment recommendations. Captured 2026-08-31.

DateTypePublisherHeadlineSummary
2005-10-25Current reportSEC filingKoppers Holdings Inc. filed Form 8-KKoppers Holdings Inc. filed Form 8-K covering items 1.01,9.01.
2005-08-02Current reportSEC filingKoppers Holdings Inc. filed Form 8-KKoppers Holdings Inc. filed Form 8-K covering items 8.01.
2005-05-27Current reportSEC filingKoppers Holdings Inc. filed Form 8-KKoppers Holdings Inc. filed Form 8-K covering items 7.01,9.01.