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May 01, 2019 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
May 01, 2019 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
May 01, 2019 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
May 01, 2019 8-K Current report htmlhtml   pdfpdf  
Apr 30, 2019 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Apr 15, 2019 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Apr 10, 2019 8-K Current report htmlhtml   pdfpdf  
Apr 09, 2019 10-Q Quarterly report htmlhtml   pdfpdf   xbrlxbrl  
Apr 01, 2019 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Feb 28, 2019 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf