KOP
Koppers Holdings·NYSE
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KOP Filings
Filing Date
Form Description
Form Type
2025-12-03
Form 8-K/A - Current report: [Amend]
Key Events
2025-12-03 · Key Events
Form 8-K/A - Current report: [Amend]
2025-11-07
Koppers Holdings Inc. (KOP) Q3 2025 Earnings Call Transcript
Earnings Call
2025-11-07 · Earnings Call
Koppers Holdings Inc. (KOP) Q3 2025 Earnings Call Transcript
2025-11-07
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2025-11-07 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2025-11-07
Form 3 - Initial statement of beneficial ownership of securities
Ownership
2025-11-07 · Ownership
Form 3 - Initial statement of beneficial ownership of securities
2025-11-07
Form 10-Q - Quarterly report [Sections 13 or 15(d)]
Financials
2025-11-07 · Financials
Form 10-Q - Quarterly report [Sections 13 or 15(d)]
2025-11-07
Form 8-K - Current report
Key Events
2025-11-07 · Key Events
Form 8-K - Current report
2025-11-05
Form 8-K - Current report
Key Events
2025-11-05 · Key Events
Form 8-K - Current report
2025-10-31
Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
2025-10-31 ·
Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
2025-09-17
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2025-09-17 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2025-09-17
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2025-09-17 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
