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CIK 0001315257 · Large accelerated filer

Koppers Holdings Inc.

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Ticker
KOP
Exchange
NYSE
Industry
Lumber & Wood Products (No Furniture)
FY end
Dec 31
Incorporated
PA
Entity type
operating
EIN
201878963
Phone
412-227-2001
Business address
436 SEVENTH AVENUE, PITTSBURGH, PA, 15219
Former names
KI Holdings Inc.
  1. 4 Insider Changes in Ownership
  2. 4 Insider Changes in Ownership
  3. 4 Insider Changes in Ownership
  4. 4 Insider Changes in Ownership
  5. 8-K Event Executive or director change · Regulation FD disclosure
  6. 10-Q Report Quarterly Report
  7. 8-K Event Results of operations · Exit or restructuring costs · Executive or director change · Shareholder vote results · Regulation FD disclosure
  8. S-8 Other Securities Offered to Employees in Benefit Plans
  9. 8-K/A Event Executive or director change
  10. SCHEDULE 13G Stake Statement of Beneficial Ownership
  11. SCHEDULE 13G/A Stake Statement of Beneficial Ownership
  12. ARS Other Annual Report to Security Holders
  13. DEF 14A Proxy Proxy Statement
  14. SCHEDULE 13G/A Stake Statement of Beneficial Ownership
  15. 4 Insider Changes in Ownership
  16. 4 Insider Changes in Ownership
  17. 4 Insider Changes in Ownership
  18. 4 Insider Changes in Ownership
  19. 4 Insider Changes in Ownership
  20. 4 Insider Changes in Ownership

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