X0508 4 2025-11-01 0001327567 Palo Alto Networks Inc PANW 0001682260 Klarich Lee C/O PALO ALTO NETWORKS INC. 3000 TANNERY WAY SANTA CLARA CA 95054 true true false false EVP Chief Product & Tech Ofcr true Common Stock 2025-11-01 4 A false 468038 0 A 617228 D Common Stock 2025-11-01 4 F false 232055 220.24 D 385173 D Common Stock 2025-11-03 4 M false 92010 32.25 A 477183 D Common Stock 2025-11-03 4 S false 8371 215.883 D 468812 D Common Stock 2025-11-03 4 S false 20195 216.746 D 448617 D Common Stock 2025-11-03 4 S false 45515 218.004 D 403102 D Common Stock 2025-11-03 4 S false 43109 218.691 D 359993 D Common Stock 2025-11-03 4 S false 3554 219.759 D 356439 D Common Stock 2025-11-03 4 S false 30 220.40 D 356409 D Common Stock 690000 I See footnote Stock Option (right to buy) 32.25 2025-11-03 4 M false 92010 0 D 2028-10-19 Common Stock 92010 184020 D The number of shares acquired represents the number of shares that vested, effective on November 1, 2025, under certain performance-based restricted stock units granted to the Reporting Person on August 23, 2022 ("PSUs"). The Issuer's Compensation and People Committee certified the achievement of the performance conditions under the PSUs effective as of November 1, 2025. 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 PSUs. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 27, 2024. This sale price represents the weighted average sale price of the shares sold ranging from $215.37 to $216.365 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 $216.37 to $217.345 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 $217.37 to $218.365 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 $218.37 to $219.34 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 $219.37 to $220.31 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, dated Dec. 5, 2005, 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 2025-11-04