X0306 4 2021-09-07 0 0001327567 Palo Alto Networks Inc PANW 0001468233 Arora Nikesh C/O PALO ALTO NETWORKS INC. 3000 TANNERY WAY SANTA CLARA CA 95054 1 1 0 0 Chief Executive Officer Common Stock 2021-09-07 4 F 0 5524 462.64 D 494098 D 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. Includes shares acquired by the Reporting Person pursuant to the Issuer's Employee Stock Purchase Plan. /s/ Elizabeth Villalobos, Attorney-in-Fact for Nikesh Arora 2021-09-07