X0508 4 2023-12-04 0 0001327567 Palo Alto Networks Inc PANW 0001682260 Klarich Lee C/O PALO ALTO NETWORKS INC. 3000 TANNERY WAY SANTA CLARA CA 95054 0 1 0 0 EVP, Chief Product Officer 0 Common Stock 2023-12-04 4 M 0 45000 64.5033 A 230217 D Common Stock 2023-12-04 4 S 0 6650 283.697 D 223567 D Common Stock 2023-12-04 4 S 0 3788 284.365 D 219779 D Common Stock 2023-12-04 4 S 0 13468 285.595 D 206311 D Common Stock 2023-12-04 4 S 0 11994 286.486 D 194317 D Common Stock 2023-12-04 4 S 0 800 287.296 D 193517 D Common Stock 2023-12-04 4 S 0 1700 288.83 D 191817 D Common Stock 2023-12-04 4 S 0 1000 289.704 D 190817 D Common Stock 2023-12-04 4 S 0 800 291.236 D 190017 D Common Stock 2023-12-04 4 S 0 1900 292.399 D 188117 D Common Stock 2023-12-04 4 S 0 2390 293.367 D 185727 D Common Stock 2023-12-04 4 S 0 510 294.078 D 185217 D Common Stock 420000 I See footnote Stock Option (right to buy) 64.5033 2023-12-04 4 M 0 45000 0.00 D 2028-10-20 Common Stock 45000 1517079 D The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 20, 2022. This sale price represents the weighted average sale price of the shares sold ranging from $283.05 to $284.04 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 $284.05 to $285.04 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 $285.05 to $286.045 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 $286.05 to $287.04 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 $287.06 to $288.01 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 $288.30 to $289.18 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 $289.38 to $290.33 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 $290.69 to $291.56 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 $291.89 to $292.855 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 $292.91 to $293.88 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 $293.92 to $294.16 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. Shares are held by the Lee and Susan Klarich 2005 Trust dtd 12/05/2005 (the "Trust"), for which the Reporting Person and his spouse serve as trustees. The shares subject to the option are fully vested and exercisable. /s/ Elizabeth Villalobos, Attorney-in-Fact for Lee Klarich 2023-12-05