ROSEN, TOP RANKED INVESTOR COUNSEL, Encourages Koppers Holdings Inc. Investors with Losses to Inquire About Securities Class Action Investigation – KOPBusiness Wire • 04/05/22
Koppers Announces Sale of Property and Assets at Facility in Sweetwater, TennesseePRNewsWire • 04/05/22
ROSEN, A LEADING LAW FIRM, Encourages Koppers Holdings Inc. Investors with Losses to Inquire About Securities Class Action Investigation - KOPNewsfile Corp • 04/01/22
KOP SHAREHOLDER ALERT: ROSEN, LEADING INVESTOR COUNSEL, Encourages Koppers Holdings Inc. Investors with Losses to Inquire About Securities Class Action Investigation - KOPPRNewsWire • 03/27/22
SHAREHOLDER ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of Koppers Holdings Inc. - KOPPRNewsWire • 03/26/22
KOP Investor Notice: ROSEN, Top Ranked Investor Counsel, Encourages Koppers Holdings Inc. Investors with Losses to Inquire About Securities Class Action Investigation - KOPNewsfile Corp • 03/24/22
KOP LOSS ALERT: ROSEN, A HIGHLY RECOGNIZED LAW FIRM, Encourages Koppers Holdings Inc. Investors with Losses to Inquire About Securities Class Action Investigation - KOPNewsfile Corp • 03/21/22
INVESTIGATION REMINDER: The Schall Law Firm Encourages Investors in Koppers Holdings Inc. with Losses of $100,000 to Contact the FirmBusiness Wire • 03/16/22
ROSEN, RECOGNIZED INVESTOR COUNSEL, Encourages Koppers Holdings Inc. Investors to Inquire About Securities Class Action Investigation - KOPPRNewsWire • 03/15/22
INVESTIGATION ALERT: The Schall Law Firm Encourages Investors in Koppers Holdings Inc. with Losses of $100,000 to Contact the FirmBusiness Wire • 03/15/22
KOP Equity Notice: ROSEN, Globally Respected Investor Counsel, Encourages Koppers Holdings Inc. Investors with Losses Exceeding $100K to Inquire About Securities Class Action Investigation - KOPNewsfile Corp • 03/13/22
Two Koppers Employees Named 2022 STEP Ahead Award Honorees By The Manufacturing InstitutePRNewsWire • 03/10/22
EQUITY ALERT: ROSEN, A TOP RANKED LAW FIRM, Encourages Koppers Holdings Inc. Investors with Losses to Inquire About Securities Class Action Investigation – KOPBusiness Wire • 03/07/22
KOPPERS ALERT: Bragar Eagel & Squire, P.C. is Investigating Koppers Holdings Inc. on Behalf of Koppers Stockholders and Encourages Investors to Contact the FirmBusiness Wire • 03/03/22
SHAREHOLDER ALERT: Investigation of Koppers Holdings (KOP) Announced by Holzer & Holzer, LLCNewsfile Corp • 02/28/22
Glancy Prongay & Murray LLP, a Leading Securities Fraud Law Firm, Announces Investigation of Koppers Holdings Inc. (KOP) on Behalf of InvestorsBusiness Wire • 02/25/22
INVESTOR ALERT: Law Offices of Howard G. Smith Announces Investigation of Koppers Holdings Inc. (KOP) on Behalf of InvestorsBusiness Wire • 02/24/22
(KOP) News: Why Did Koppers Holdings Inc. Stock Price Drop? Contact Johnson Fistel Regarding InvestigationNewsfile Corp • 02/24/22
The Law Offices of Frank R. Cruz Announces Investigation of Koppers Holdings Inc. (KOP) on Behalf of InvestorsBusiness Wire • 02/24/22
Koppers Holdings, Inc. (KOP) CEO Leroy Ball On Q4 2021 Results - Earnings Call TranscriptSeeking Alpha • 02/23/22
Koppers Reports Fourth Quarter and Full-Year 2021 Results; Provides 2022 OutlookPRNewsWire • 02/23/22
Koppers Holdings Inc. Reinstates Quarterly Cash Dividend and Declares First Dividend Since 2014PRNewsWire • 02/23/22