Koppers Holdings Inc (KOP) Actualités

Koppers Announces Participation in Upcoming Investor Conferences

Koppers Announces Participation in Upcoming Investor Conferences PR Newswire PITTSBURGH, March 7, 2025...

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Form 8-K - Current report

Koppers Announces $100 Million Share Repurchase Program

Koppers Announces $100 Million Share Repurchase Program PR Newswire PITTSBURGH, Feb. 27, 2025 Supported by...

Form 3 - Initial statement of beneficial ownership of securities

Koppers Holdings Inc. Announces Increase to Quarterly Cash Dividend

Koppers Holdings Inc. Announces Increase to Quarterly Cash Dividend PR Newswire PITTSBURGH, Feb. 12, 2025...

Koppers Holdings Inc. Schedules Fourth Quarter and Full-Year 2024 Conference Call

Koppers Holdings Inc. Schedules Fourth Quarter and Full-Year 2024 Conference Call PR Newswire PITTSBURGH, Feb...

Form 4 - Statement of changes in beneficial ownership of securities

Form 4 - Statement of changes in beneficial ownership of securities

Form 4 - Statement of changes in beneficial ownership of securities

Form 4 - Statement of changes in beneficial ownership of securities

Form 4 - Statement of changes in beneficial ownership of securities

Form 4 - Statement of changes in beneficial ownership of securities

Form 4 - Statement of changes in beneficial ownership of securities