December 11th, 2017
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Koppers Holdings Inc. Common Stock (NY:KOP)

43.89 +2.73 (+6.63%)
Streaming Delayed Price Updated: 2:15 PM EDT, May 8, 2026 Add to My Watchlist
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Press Releases about Koppers Holdings Inc. Common Stock

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ROSEN, TOP RANKED INVESTOR COUNSEL, Encourages Koppers Holdings Inc. Investors with Losses to Inquire About Securities Class Action Investigation – KOP
From The Rosen Law Firm, P.A.
Via Business Wire
News headline image
NYSE:KOP Investor Alert: Investigation over Potential Securities Laws Violations by Koppers Holdings Inc. ↗
San Diego, CA -- (SBWIRE) -- 04/04/2022 -- Koppers Holdings Inc. is under investigation over potential securities laws violations in connection with certain financial statements. 
Via SBWire
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INVESTIGATION REMINDER: The Schall Law Firm Encourages Investors in Koppers Holdings Inc. with Losses of $100,000 to Contact the Firm
From The Schall Law Firm
Via Business Wire
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INVESTIGATION ALERT: The Schall Law Firm Encourages Investors in Koppers Holdings Inc. with Losses of $100,000 to Contact the Firm
From The Schall Law Firm
Via Business Wire
News headline image
KOP INVESTOR ALERT: ROSEN, NATIONAL TRIAL LAWYERS, Encourages Koppers Holdings Inc. Investors with Losses to Inquire About Securities Class Action Investigation KOP
Search for the latest press releases from publicly traded companies, private corporations, non-profits and other public sector organizations. 
Via NewMediaWire
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Koppers Holdings Inc. (NYSE:KOP) Investor Notice: Investigation over Possible Violations of Securities Laws ↗
San Diego, CA -- (SBWIRE) -- 03/08/2022 -- Koppers Holdings Inc is under investigation over potential securities laws in connection with certain financial statements. 
Via SBWire
News headline image
Glancy Prongay & Murray LLP, a Leading Securities Fraud Law Firm, Announces Investigation of Koppers Holdings Inc. (KOP) on Behalf of Investors
From Glancy Prongay & Murray LLP
Via Business Wire
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INVESTOR ALERT: Law Offices of Howard G. Smith Announces Investigation of Koppers Holdings Inc. (KOP) on Behalf of Investors
From Law Offices of Howard G. Smith
Via Business Wire
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The Law Offices of Frank R. Cruz Announces Investigation of Koppers Holdings Inc. (KOP) on Behalf of Investors
From The Law Offices of Frank R. Cruz
Via Business Wire
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Koppers Holdings Inc. (NYSE:KOP) Investor Alert: Investigation Concerning Potential Wrongdoing ↗
San Diego, CA -- (SBWIRE) -- 04/27/2021 -- Certain directors of Koppers Holdings Inc. are under investigation over potential breaches of fiduciary duties by certain officers and directors at Koppers... 
Via SBWire
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