X0407 4 2023-06-15 0 0001262039 Fortinet, Inc. FTNT 0001661859 STAVRIDIS JAMES G. C/O FORTINET, INC. 899 KIFER ROAD SUNNYVALE CA 94086 1 0 0 0 0 Common Stock 2023-06-15 4 M 0 1033 0.00 A 6766 D Restricted Stock Units 0.00 2023-06-15 4 M 0 1033 0.00 D Common Stock 1033 0 D Vesting of restricted stock units ("RSUs") granted to the Reporting Person on August 17, 2022. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement. The RSUs will vest in substantially equal increments on each of September 30, 2022, December 31, 2022, March 31, 2023, and the earlier of (i) June 30, 2023 and (ii) the date immediately preceding the Issuer's 2023 annual meeting of stockholders, subject to the Reporting Person's provision of services to the Issuer on each vesting date. Shares of the Issuer's Common Stock will be delivered to the Reporting Person following vesting. RSUs do not expire; they either vest or are canceled prior to vest date. /s/ Robert Turner, by power of attorney 2023-06-20