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Filing Date Form Type Description View
May 09, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Apr 17, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Apr 12, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Mar 26, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Mar 19, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Mar 18, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Mar 14, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Mar 12, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Dec 18, 2012 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Dec 05, 2012 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf