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Koppers Holdings Inc. (KOP) Create: Alert

All | News | Filings
Date FiledTypeDescription
01/20/2023 SC 13G BlackRock Inc. reports a 16.8% stake in KOPPERS HOLDINGS INC
02/14/2022 SC 13G Rubric Capital Management LP reports a 5.2% stake in Koppers Holdings Inc.
02/12/2021 SC 13G Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
02/14/2020 SC 13G Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
04/08/2019 SC 13G VANGUARD GROUP INC reports a 10.4% stake in Koppers Holdings Inc
02/14/2019 SC 13G Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
02/14/2019 SC 13G Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
11/15/2018 SC 13G Division of Investment, Department of the Treasury, State of New Jersey reports a 5.1% stake in Koppers Holdings Inc.
02/14/2018 SC 13G Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
02/14/2017 SC 13G Form SC 13G - Statement of acquisition of beneficial ownership by individuals
02/12/2016 SC 13G Form SC 13G - Statement of acquisition of beneficial ownership by individuals
02/10/2012 SC 13G Form SC 13G - Statement of acquisition of beneficial ownership by individuals
02/09/2012 SC 13G Koppers Holdings Inc. reports a 5.4% stake in Koppers Holdings Inc
02/14/2011 SC 13G Koppers Holdings Inc. reports a 11.6% stake in Koppers Holdings Inc.
02/07/2011 SC 13G Form SC 13G - Statement of acquisition of beneficial ownership by individuals
06/10/2010 SC 13G Koppers Holdings Inc. reports a 10.3% stake in Koppers Holdings Inc.
02/16/2010 SC 13G Form SC 13G - Statement of acquisition of beneficial ownership by individuals
02/12/2010 SC 13G Koppers Holdings Inc. reports a 6.2% stake in Koppers Holdings, Inc.
02/09/2010 SC 13G Koppers Holdings Inc. reports a 5% stake in KOPPERS HOLDINGS INC
04/09/2009 SC 13G Form SC 13G -- Statement of acquisition of beneficial ownership by individuals
01/12/2009 SC 13G SOUTHERNSUN ASSET MANAGEMENT, INC reports a 7.9% stake in Koppers Holdings Inc.

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