| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Giancarlo Charles H | Director | C/O ZSCALER, INC., 120 HOLGER WAY, SAN JOSE | /s/ Torrie Nute, by power of attorney | 13 Jan 2026 | 0001299634 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ZS | Common Stock | Award | $0 | +1,076 | +0.75% | $0.000000 | 145,451 | 12 Jan 2026 | Direct | F1 |
| holding | ZS | Common Stock | 8,912 | 12 Jan 2026 | See footnote | F2 | |||||
| holding | ZS | Common Stock | 8,912 | 12 Jan 2026 | See footnote | F3 | |||||
| holding | ZS | Common Stock | 125,000 | 12 Jan 2026 | See footnote | F4 |
| Id | Content |
|---|---|
| F1 | The reported shares are represented by restricted stock units, which vest in four equal quarterly installments beginning on March 15, 2026. |
| F2 | The shares are held of record by The 2012 Gianna Marie Giancarlo Trust UAD 12/26/12 for which the reporting person serves as a trustee. |
| F3 | The shares are held of record by The 2012 Marielle Christina Giancarlo Trust UAD 12/26/12 for which the reporting person serves as a trustee. |
| F4 | The shares are held of record by The Charles H. & Dianne G. Giancarlo Family Trust U/D/T 11/2/98 for which the reporting person serves as trustee. |