144 0001435941 XXXXXXXX LIVE 0001713683 ZSCALER, INC 001-38413 120 Holger Way San Jose CA 95134 4085330288 ROBERT SCHLOSSMAN Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

4947 849746.19 152490005 09/30/2024 NASDAQ Common 09/15/2024 RSUs & PSUs Issuer N 4947 09/15/2024 N/A N 10b5-1 Sales Plan for ROBERT SCHLOSSMAN

120 Holger Way San Jose CA 95134

Common 09/23/2024 213 38020.73 ROBERT SCHLOSSMAN

120 Holger Way San Jose CA 95134

Common 09/17/2024 6220 1065361.60 09/30/2024 06/29/2024 /s/ Robert Schlossman