X0306 4 2022-04-20 0 0001327567 Palo Alto Networks Inc PANW 0001250333 ZUK NIR C/O PALO ALTO NETWORKS INC. 3000 TANNERY WAY SANTA CLARA CA 95054 1 1 0 0 EVP, Chief Technology Officer Common Stock 2022-04-20 4 F 0 1069 628.56 D 719665 D Common Stock 91638 I See footnote This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units and performance-based restricted stock units. Shares are held by the Cliff Family Trusts for the benefit of the Reporting Person's children. /s/ Elizabeth Villalobos, Attorney-in-Fact for Nir Zuk 2022-04-22