Koppers Holdings Inc. SC 13G and SC 13G/A reports

Location
436 Seventh Avenue, Pittsburgh, Pennsylvania
State of incorporation
Pennsylvania
Fiscal year end
December 31
Data updated at
8/8/2024, 12:18 PM
Form type Sec Links Description Filing date Reporting date
SC 13G/A Report SCHEDULE 13G/A Feb 13, 2024
SC 13G/A Report Feb 12, 2024
SC 13G/A Report SC 13G/A Feb 12, 2024
SC 13G Report SEC SCHEDULE 13G Feb 9, 2024
SC 13G/A Report Jan 22, 2024
SC 13G/A Report Feb 14, 2023
SC 13G/A Report SC 13G/A Feb 10, 2023
SC 13G/A Report SCHEDULE 13G/A Feb 9, 2023
SC 13G/A Report Jan 26, 2023
SC 13G Report Jan 20, 2023
SC 13G/A Report Mar 2, 2022
SC 13G Report SC 13G Feb 14, 2022
SC 13G/A Report SCHEDULE 13G/A Feb 10, 2022
SC 13G/A Report Feb 8, 2022
SC 13G/A Report Jan 28, 2022
SC 13G Report SCHEDULE 13G Feb 12, 2021
SC 13G/A Report Feb 11, 2021
SC 13G/A Report SCHEDULE 13G/A Feb 10, 2021
SC 13G/A Report Jan 26, 2021
SC 13G Report SCHEDULE 13G Feb 14, 2020
SC 13G/A Report Feb 14, 2020
SC 13G/A Report Feb 13, 2020
SC 13G/A Report SCHEDULE 13G/A Feb 12, 2020
SC 13G/A Report Feb 4, 2020
SC 13G/A Report DIVISION OF INVESTMENT, DEPARTMENT OF THE TREASURY,STATE OF NEW JERSEY Sep 26, 2019
SC 13G Report Apr 8, 2019
SC 13G/A Report SC 13G/A Feb 14, 2019
SC 13G Report SCHEDULE 13G Feb 14, 2019
SC 13G Report KOPPERS HOLDINGS INC. Feb 14, 2019
SC 13G/A Report Jan 31, 2019
SC 13G/A Report DIVISION OF INVESTMENT, DEPARTMENT OF THE TREASURY,STATE OF NEW JERSEY Jan 31, 2019
SC 13G/A Report Jan 10, 2019
SC 13G Report DIVISION OF INVESTMENT, DEPARTMENT OF THE TREASURY,STATE OF NEW JERSEY Nov 15, 2018
SC 13G Report SCHEDULE 13G Feb 14, 2018
SC 13G/A Report Feb 14, 2018
SC 13G/A Report SC 13G/A Feb 12, 2018
SC 13G/A Report Feb 9, 2018
SC 13G/A Report Jan 19, 2018
SC 13G/A Report Feb 23, 2017
SC 13G Report SCHEDULE 13G Feb 14, 2017
SC 13G/A Report SC 13G/A Feb 10, 2017
SC 13G/A Report Feb 10, 2017
SC 13G/A Report Jan 12, 2017
SC 13G/A Report Jun 9, 2016
SC 13G Report SCHEDULE 13G Feb 12, 2016
SC 13G/A Report SEC SCHEDULE 13G Feb 11, 2016
SC 13G Report SC 13G Feb 10, 2016
SC 13G/A Report Feb 10, 2016
SC 13G/A Report Feb 10, 2016
SC 13G/A Report KOP AS OF 12/31/2015 Feb 9, 2016
SC 13G/A Report Jan 26, 2016
SC 13G Report SCHEDULE 13G Sep 4, 2015
SC 13G Report SCHEDULE 13G Feb 13, 2015
SC 13G/A Report KOP AS OF 12/31/2014 Feb 13, 2015
SC 13G/A Report SEC SCHEDULE 13G Feb 12, 2015
SC 13G/A Report Feb 10, 2015
SC 13G/A Report Jan 22, 2015
SC 13G Report DISCLOSURE DOCUMENT Feb 14, 2014
SC 13G/A Report Feb 11, 2014
SC 13G/A Report KOP AS OF 01/31/2014 Feb 10, 2014
SC 13G/A Report KOP AS OF 12/31/2013 Feb 7, 2014
SC 13G/A Report Jan 29, 2014
SC 13G/A Report Jun 10, 2013
SC 13G/A Report Feb 14, 2013
SC 13G Report Feb 13, 2013
SC 13G/A Report Feb 11, 2013
SC 13G/A Report Feb 8, 2013
SC 13G/A Report KOP AS OF 12/31/12 Feb 7, 2013
SC 13G/A Report Jan 10, 2013
SC 13G/A Report Jul 10, 2012
SC 13G/A Report Feb 14, 2012
SC 13G/A Report Feb 14, 2012
SC 13G/A Report Feb 13, 2012
SC 13G Report Feb 10, 2012
SC 13G/A Report KOP AS OF 12/31/11 Feb 10, 2012
SC 13G Report Feb 9, 2012
SC 13G/A Report Feb 7, 2012
SC 13G Report Feb 14, 2011
SC 13G/A Report KOPPERS HOLDINGS, INC. Feb 14, 2011
SC 13G/A Report Feb 9, 2011
SC 13G/A Report KOP AS OF 12/31/2010 Feb 9, 2011
SC 13G/A Report Feb 7, 2011
SC 13G Report Feb 7, 2011
SC 13G/A Report KOPPERS HOLDINGS, INC. Jan 10, 2011
SC 13G Report Jun 10, 2010
SC 13G/A Report Apr 9, 2010
SC 13G Report Feb 16, 2010
SC 13G/A Report AMENDMENT NO. 2 Feb 12, 2010
SC 13G/A Report KOP AS OF 12/31/2009 Feb 12, 2010
SC 13G/A Report KOPPERS HOLDINGS, INC. Feb 12, 2010
SC 13G Report KOPPERS HOLDINGS, INC. Feb 12, 2010
SC 13G Report Feb 9, 2010
SC 13G Report Jan 29, 2010