Zscaler

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-16 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Zscaler, Inc. (ZS) CIK: 0001713683 --- Reporting Owner --- Name: Chaudhry Jagtar Singh CIK: 0001374436 Role: Director, Officer (CEO & Chairman), 10%+ Owner --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-09-16 | Code: S (Open market sale) Shares: -2,852 | Price: $192.76 Total Value: $549,759.51 Shares Owned After: 340,186 | Ownership: D (Direct) Footnotes: [F1] 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. --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) Footnotes: [F2] The shares are held of record by Jay Chaudhry & Jyoti Chaudhry Co-TTEES Jay & Jyoti Chaudhry TR U/A DTD 12/06/25. [Holding #2] Security: Common Stock Ownership: I (Indirect) Footnotes: [F3] The shares are held of record by The P. Jyoti Chaudhry Family Trust dated March 1, 2000 for which Ms. Surjit Kaur serves as trustee. --- Footnotes (Complete Index) --- F1: 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. F2: The shares are held of record by Jay Chaudhry & Jyoti Chaudhry Co-TTEES Jay & Jyoti Chaudhry TR U/A DTD 12/06/25. F3: The shares are held of record by The P. Jyoti Chaudhry Family Trust dated March 1, 2000 for which Ms. Surjit Kaur serves as trustee. --- Signature --- /s/ /s/ Torrie Nute, by power of attorney (2026-09-17)