X0306 4 2021-07-20 0 0001327567 Palo Alto Networks Inc PANW 0001309507 MCLAUGHLIN MARK D C/O PALO ALTO NETWORKS INC. 3000 TANNERY WAY SANTA CLARA CA 95054 1 0 0 0 Common Stock 2021-07-20 4 F 0 2654 400.99 D 53883 D Common Stock 48380 I See footnote Common Stock 7500 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 McLaughlin Revocable Living Trust, for which the Reporting Person serves as a trustee. Shares are held by the McLaughlin 2020 Dynasty LLC for the benefit of the Reporting Person's children, for which the Reporting Person serves as a Manager. /s/ Sonia Guillory, Attorney-in-Fact for Mark D. McLaughlin 2021-07-22