KOP Latest Press Releases

-- November 13, 2026 --

Koppers Holdings Inc. (KOP) Securities Investigation Notice - Levi & Korsinsky PRNewswire 2:05 PM

-- November 12, 2026 --

Koppers Management Participating in Southwest IDEAS Investor Conference PRNewswire 7:55 AM

-- November 11, 2026 --

KOP Investors Have Opportunity to Join Koppers Holdings Inc. Fraud Investigation with SBS Law Business Wire 4:34 PM

Levi & Korsinsky Notifies Investors of Pending Investigation Into Securities Claims Involving Koppers Holdings Inc. (KOP) Globe Newswire 10:31 AM

-- November 10, 2026 --

KOP Investor Alert: Levi & Korsinsky Notifies Investors of Investigation Into Koppers Holdings Inc. (KOP) ACCESS Newswire 10:15 AM

-- November 9, 2026 --

KOP SHAREHOLDER INVESTIGATION: SueWallSt Notifies Investors of Potential Securities Claims Involving Koppers Holdings Inc. PRNewswire 10:17 AM

-- November 6, 2026 --

Koppers Holdings Investigation Notice: Levi & Korsinsky Notifies Investors of Pending Investigation Into Koppers Holdings Inc. (KOP) PRNewswire 8:40 PM

KOPPERS REPORTS THIRD QUARTER 2026 RESULTS PRNewswire 7:55 AM

-- November 4, 2026 --

Koppers Holdings Inc. Declares Quarterly Cash Dividend PRNewswire 4:31 PM

-- October 23, 2026 --

Koppers Holdings Inc. Schedules Third Quarter 2026 Conference Call PRNewswire 7:56 AM

-- August 31, 2026 --

Koppers Holdings Inc. to Host Investor Day on September 17, 2026 PRNewswire 7:55 AM

-- August 10, 2026 --

Koppers Management Meeting with Financial Community in Montreal and Toronto PRNewswire 7:56 AM

-- August 6, 2026 --

KOPPERS REPORTS SECOND QUARTER 2026 RESULTS PRNewswire 7:55 AM

-- August 5, 2026 --

Koppers Holdings Inc. Declares Quarterly Cash Dividend PRNewswire 10:10 AM

-- July 23, 2026 --

Koppers Holdings Inc. Schedules Second Quarter 2026 Conference Call PRNewswire 7:55 AM

-- June 25, 2026 --

Koppers Publishes 2025 Corporate Sustainability Report Highlighting Record Safety and Emissions Performance and Refreshed 2030 Strategy PRNewswire 8:30 AM

-- June 16, 2026 --

Sidoti Events, LLC's June Small-Cap Virtual Conference ACCESS Newswire 10:00 AM

-- June 15, 2026 --

Koppers Announces Participation in Upcoming June Investor Conferences PRNewswire 7:59 AM

Market Data Delayed 15 Minutes