ModelEdge

Koppers Holdings Inc.
KOP
Filing Type8-K
Filing Date5/7/2026
Updated5/8/26, 8:12 AM

Filing

8-K
Earnings Release

Exhibits

8-KFinancial Results, Costs of Shutting Down or Selling Parts of the Business, Changes in Board, Management or Compensation, Shareholder votes, Reg. FD
EX-99.1Financial Results, Costs of Shutting Down or Selling Parts of the Business, Changes in Board, Management or Compensation, Shareholder votes, Reg. FD
EX-99.2Financial Results, Costs of Shutting Down or Selling Parts of the Business, Changes in Board, Management or Compensation, Shareholder votes, Reg. FD
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