Zscaler

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-15 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: Zscaler, Inc. (ZS) CIK: 0001713683 --- Reporting Owner --- Name: Geller Adam CIK: 0002040014 Role: Officer (Chief Product Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-09-15 | Code: A (Grant or award) Shares: +6,817 | Price: $0.00 Shares Owned After: 49,131 | Ownership: D (Direct) Footnotes: [F1] Represents restricted stock units granted upon achievement of certain FY26 performance metrics pursuant to performance-based restricted stock units granted October 15, 2025 under Zscaler's Amended and Restated Fiscal Year 2018 Equity Incentive Plan. The restricted stock units reported in this Form 4 were issued and vested on September 15, 2026. [Transaction #2] Security: Common Stock Date: 2026-09-16 | Code: S (Open market sale) Shares: -5,578 | Price: $192.76 Total Value: $1,075,230.90 Shares Owned After: 43,553 | Ownership: D (Direct) Footnotes: [F2] 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. [Transaction #3] Security: Common Stock Date: 2026-09-17 | Code: S (Open market sale) Shares: -4,584 | Price: $192.01 Total Value: $880,173.84 Shares Owned After: 38,969 | Ownership: D (Direct) Footnotes: [F3] The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on March 20, 2026. --- Footnotes (Complete Index) --- F1: Represents restricted stock units granted upon achievement of certain FY26 performance metrics pursuant to performance-based restricted stock units granted October 15, 2025 under Zscaler's Amended and Restated Fiscal Year 2018 Equity Incentive Plan. The restricted stock units reported in this Form 4 were issued and vested on September 15, 2026. F2: 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. F3: The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on March 20, 2026. --- Signature --- /s/ /s/ Torrie Nute, by power of attorney (2026-09-17)