X0609 4 2026-06-16 0 0001713683 Zscaler, Inc. ZS 0001198529 RUBIN KEVIN false 120 HOLGER WAY SAN JOSE CA 95134 0 1 0 0 Chief Financial Officer 0 Common Stock 2026-06-16 4 S 0 1686 126.4295 D 44901 D 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 108 shares acquired under the Issuer's FY2018 Employee Stock Purchase Plan on June 15, 2026. /s/ Torrie Nute, by power of attorney 2026-06-17