Filing Date Form Type Description View
Jan 15, 2004 SC 13D/A General statement of acquisition of beneficial ownership (Amendment) texttxt  
Jan 17, 2003 SC 13D/A General statement of acquisition of beneficial ownership (Amendment) texttxt  
Dec 20, 2010 SC 13G Statement of acquisition of beneficial ownership by individuals htmlhtml   pdfpdf  
Feb 14, 2013 SC 13G Statement of acquisition of beneficial ownership by individuals htmlhtml   pdfpdf  
Feb 14, 2014 SC 13G/A Statement of acquisition of beneficial ownership by individuals (Amendment) htmlhtml   pdfpdf  
Feb 12, 2015 SC 13G/A Statement of acquisition of beneficial ownership by individuals (Amendment) htmlhtml   pdfpdf  
Feb 12, 2016 SC 13G/A Statement of acquisition of beneficial ownership by individuals (Amendment) htmlhtml   pdfpdf  
Feb 13, 2017 SC 13G/A Statement of acquisition of beneficial ownership by individuals (Amendment) htmlhtml   pdfpdf