X0609 4 2026-06-16 0 0001713683 Zscaler, Inc. ZS 0001435941 Schlossman Robert false C/O ZSCALER, INC. 120 HOLGER WAY SAN JOSE CA 95134 0 1 0 0 Chief Legal Officer 0 Common Stock 2026-06-16 4 S 0 3146 126.4296 D 69366 D Commom Stock 66 I See Footnote Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units as mandated by the Issuer's election under its equity incentive plans and does not represent a discretionary trade by the Reporting Person. Includes 122 shares acquired under the Issuer's FY2018 Employee Stock Purchase Plan on June 15, 2026. The shares are held directly by the reporting person's spouse. /s/ Torrie Nute, by power of attorney 2026-06-17