Recent News

• 08.27.2025 - August 27, 2025 2:20 PM EDT - August 27, 2025 2:55 PM EDT : Midwest IDEAS Conference
• 08.21.2025 - Koppers Announces Participation in Midwest IDEAS Investor Conference
• 08.12.2025 - August 12, 2025 - August 13, 2025 : Koppers Management Meeting with Financial Community in Boston and New York
• 08.11.2025 - Koppers Management Meeting with Financial Community in Boston and New York
• 08.08.2025 - Q2 2025 Koppers Holdings Inc. Earnings Conference Call
• 08.08.2025 - KOPPERS REPORTS SECOND QUARTER 2025 RESULTS; REVISES 2025 OUTLOOK
• 08.07.2025 - Koppers Holdings Inc. Declares Quarterly Cash Dividend
• 07.25.2025 - Koppers Holdings Inc. Schedules Second Quarter 2025 Conference Call
• 06.25.2025 - Koppers Releases 2024 Corporate Sustainability Report
• 06.18.2025 - Koppers Extends Revolving Credit Facility Maturity Date to 2030

Recent Filings

• 08.18.2025 - 4 Statement of changes in beneficial ownership of securities
• 08.15.2025 - 144 Report of proposed sale of securities
• 08.11.2025 - 144 Report of proposed sale of securities
• 08.08.2025 - EX-99.1 EX-99.1
• 08.08.2025 - 8-K Current report
• 08.08.2025 - 10-Q Quarterly report [Sections 13 or 15(d)]
• 06.20.2025 - 4 Statement of changes in beneficial ownership of securities
• 06.18.2025 - 8-K Current report
• 06.18.2025 - EX-99.1 EX-99.1