X0306 4 2017-09-08 0 0001327567 Palo Alto Networks Inc PANW 0001409324 Eschenbach Carl M. C/O PALO ALTO NETWORKS, INC. 3000 TANNERY WAY. SANTA CLARA CA 95054 1 0 0 0 Common Stock 2017-09-08 4 S 0 1572 144.987 D 3619 D This sale price represents the weighted average sale price of the shares sold ranging from $144.97 to $145.015 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4. /s/ Jeff True, Attorney in-Fact for Carl M. Eschenbach 2017-09-12