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Jul 26, 2021 4 Statement of changes in beneficial ownership of securities htmlhtml  
May 28, 2021 4 Statement of changes in beneficial ownership of securities htmlhtml  
Sep 14, 2020 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Sep 09, 2020 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Sep 08, 2020 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Sep 02, 2020 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Aug 31, 2020 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Aug 26, 2020 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Aug 26, 2020 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Aug 26, 2020 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf