$MAT SEC Filings

Filing Filed On
PRIMARY DOCUMENT 08 Feb 2012
PRIMARY DOCUMENT 06 Feb 2012
PRIMARY DOCUMENT 06 Feb 2012
PRIMARY DOCUMENT 03 Feb 2012
PRIMARY DOCUMENT 03 Feb 2012
PRIMARY DOCUMENT 03 Feb 2012
PRIMARY DOCUMENT 01 Feb 2012
PRIMARY DOCUMENT 01 Feb 2012
FORM 8-K 01 Feb 2012
PRIMARY DOCUMENT 01 Feb 2012
PRIMARY DOCUMENT 01 Feb 2012
FORM 8-K 31 Jan 2012
PRIMARY DOCUMENT 27 Jan 2012
PRIMARY DOCUMENT 27 Jan 2012
PRIMARY DOCUMENT 04 Jan 2012
PRIMARY DOCUMENT 04 Jan 2012
PRIMARY DOCUMENT 05 Dec 2011
PRIMARY DOCUMENT 05 Dec 2011
FORM 8-K 21 Nov 2011
PRIMARY DOCUMENT 21 Nov 2011