X0306 4 2015-08-05 0 0001262039 FORTINET INC FTNT 0001646293 Sim Judith C/O FORTINET, INC. 899 KIFER ROAD SUNNYVALE CA 94086 1 0 0 0 Restricted Stock Units 0 2015-08-05 4 A 0 15000 0 A Common Stock 15000 15000 D Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock. 1/3 of the RSUs vest on August 5, 2016, and the remainder will vest on each quarterly anniversary thereafter in equal installments, subject to the continuing service of the Reporting Person on each vesting date. Shares of the Issuer's common stock will be delivered to the Reporting Person upon vesting. /s/ Robert Turner, by power of attorney 2015-08-10