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Koppers Holdings Inc. Common Stock
(NY:
KOP
)
26.67
-0.41 (-1.51%)
Official Closing Price
Updated: 7:00 PM EST, Jan 2, 2026
Add to My Watchlist
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Press Releases about Koppers Holdings Inc. Common Stock
ROSEN, TOP RANKED INVESTOR COUNSEL, Encourages Koppers Holdings Inc. Investors with Losses to Inquire About Securities Class Action Investigation – KOP
April 05, 2022
From
The Rosen Law Firm, P.A.
Via
Business Wire
NYSE:KOP Investor Alert: Investigation over Potential Securities Laws Violations by Koppers Holdings Inc.
↗
April 04, 2022
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
INVESTIGATION REMINDER: The Schall Law Firm Encourages Investors in Koppers Holdings Inc. with Losses of $100,000 to Contact the Firm
March 16, 2022
From
The Schall Law Firm
Via
Business Wire
INVESTIGATION ALERT: The Schall Law Firm Encourages Investors in Koppers Holdings Inc. with Losses of $100,000 to Contact the Firm
March 15, 2022
From
The Schall Law Firm
Via
Business Wire
KOP INVESTOR ALERT: ROSEN, NATIONAL TRIAL LAWYERS, Encourages Koppers Holdings Inc. Investors with Losses to Inquire About Securities Class Action Investigation KOP
March 11, 2022
Search for the latest press releases from publicly traded companies, private corporations, non-profits and other public sector organizations.
Via
NewMediaWire
Koppers Holdings Inc. (NYSE:KOP) Investor Notice: Investigation over Possible Violations of Securities Laws
↗
March 08, 2022
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
Glancy Prongay & Murray LLP, a Leading Securities Fraud Law Firm, Announces Investigation of Koppers Holdings Inc. (KOP) on Behalf of Investors
February 25, 2022
From
Glancy Prongay & Murray LLP
Via
Business Wire
INVESTOR ALERT: Law Offices of Howard G. Smith Announces Investigation of Koppers Holdings Inc. (KOP) on Behalf of Investors
February 24, 2022
From
Law Offices of Howard G. Smith
Via
Business Wire
The Law Offices of Frank R. Cruz Announces Investigation of Koppers Holdings Inc. (KOP) on Behalf of Investors
February 24, 2022
From
The Law Offices of Frank R. Cruz
Via
Business Wire
Koppers Holdings Inc. (NYSE:KOP) Investor Alert: Investigation Concerning Potential Wrongdoing
↗
April 27, 2021
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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