X0306 4 2018-06-27 0 0001327567 Palo Alto Networks Inc PANW 0001283102 MERESMAN STANLEY J C/O PALO ALTO NETWORKS, INC. 3000 TANNERY WAY SANTA CLARA CA 95054 1 0 0 0 Common Stock 2018-06-27 4 S 0 643 201.439 D 7252 D Common Stock 2018-06-27 4 S 0 236 202.298 D 7016 D Common Stock 2018-06-27 4 S 0 700 204.759 D 6316 D Common Stock 2018-06-27 4 S 0 400 205.473 D 5916 D The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. This sale price represents the weighted average sale price of the shares sold ranging from $200.99 to $201.93 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. This sale price represents the weighted average sale price of the shares sold ranging from $202.09 to $202.37 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. This sale price represents the weighted average sale price of the shares sold ranging from $204.15 to $205.08 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. This sale price represents the weighted average sale price of the shares sold ranging from $205.29 to $205.62 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 Stanley J. Meresman 2018-06-29