Koppers Holdings Inc.

NYSE: KOP
Share price (3/25/25): $28.36
Market cap (3/25/25): $581 million

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ended 12/31/24 FY 2024

ended 09/30/24 Q3

ended 06/30/24 Q2

ended 03/31/24 Q1

ended 12/31/23 FY 2023

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Registration of securities for employees

Registration of securities for employees

Registration of securities for employees

Registration of securities for employees

Prospectus supplement

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Washington Kevin

Lucas Stephen G

News Filter

Reports Fourth Quarter and Full-Year 2024 Results; Provides 2025 Outlook

Successfully Reprices Term Loan B

Change in Directors, Officers or Compensation

Ceasing Phthalic Anhydride Operations at Stickney Facility

Reports Third Quarter 2024 Results; Reaffirms 2024 Outlook

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Definitive proxy

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Scanned paper annual report submission

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Letter from the SEC

Scanned paper annual report submission