KOP
Koppers Holdings·NYSE
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KOP Filings
Filing Date
Form Description
Form Type
2026-03-04
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-03-04 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2026-03-03
Form 4/A - Statement of changes in beneficial ownership of securities: [Amend]
Ownership
2026-03-03 · Ownership
Form 4/A - Statement of changes in beneficial ownership of securities: [Amend]
2026-03-02
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-03-02 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2026-03-02
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-03-02 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2026-03-02
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-03-02 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2026-03-02
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-03-02 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2026-03-02
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-03-02 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2026-03-02
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-03-02 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2026-03-02
Form 144 - Report of proposed sale of securities
Ownership
2026-03-02 · Ownership
Form 144 - Report of proposed sale of securities
2026-02-26
Koppers Holdings Inc. (KOP) Q4 2025 Earnings Call Transcript
Earnings Call
2026-02-26 · Earnings Call
Koppers Holdings Inc. (KOP) Q4 2025 Earnings Call Transcript
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