$HE SEC Filings

Filing Filed On
PRIMARY DOCUMENT 13 May 2011
PRIMARY DOCUMENT 17 Nov 2010
PRIMARY DOCUMENT 19 Nov 2009
PRIMARY DOCUMENT 17 Nov 2009
PRIMARY DOCUMENT 28 Jan 2009
PRIMARY DOCUMENT 09 Jan 2009
PRIMARY DOCUMENT 06 Feb 2008
PRIMARY DOCUMENT 09 Aug 2007
PRIMARY DOCUMENT 18 Jun 2007
PRIMARY DOCUMENT 04 Mar 2005
PRIMARY DOCUMENT 04 Jan 2005
PRIMARY DOCUMENT 04 Jan 2005