$KOP SEC Filings

Filing Filed On
SC 13G/A 07 Feb 2012
KOPPERS HOLDINGS, INC. 14 Feb 2011
SC 13G/A 09 Feb 2011
KOP AS OF 12/31/2010 09 Feb 2011
SC 13G/A 07 Feb 2011
KOPPERS HOLDINGS, INC. 10 Jan 2011
SC 13G/A 09 Apr 2010
KOPPERS HOLDINGS, INC. 12 Feb 2010
KOP AS OF 12/31/2009 12 Feb 2010
AMENDMENT NO. 2 12 Feb 2010
AMENDMENT NO. 1 13 Feb 2009
SC 13G/A 13 Feb 2009
KOP AS OF 12/31/08 12 Feb 2009
SC 13G/A 09 Jan 2009
KOP AS OF 8/31/08 10 Sep 2008
KOPPERS HOLDINGS INC. 28 Apr 2008
SC 13G/A 14 Feb 2008
KOPPERS HOLDINGS INC. - SARATOGA PARTNERS III, L.P. SCHEDULE 13G/A - 02/14/08 14 Feb 2008
SC 13G/A - - KOPPERS HOLDINGS INC. 13 Feb 2008
KOPPERS HOLDINGS INC. 25 Jan 2008