X0306 4 2017-02-10 0000203527 VARIAN MEDICAL SYSTEMS INC VAR 0001217440 GUERTIN TIMOTHY E C/O VARIAN MEDICAL SYSTEMS 3100 HANSEN WAY, MAIL STOP E-327 PALO ALTO CA 94304-1030 1 Deferred Stock Units 2017-02-10 4 A 0 1990 0 A Common Stock 1990 8487 D Each Deferred Stock Unit represents the right to receive one share of VAR common stock. The Deferred Stock Units vest in four equal quarterly installments over a 12 month period beginning February 10, 2017. Vested shares will be delivered to the reporting person on the earlier of three years from the grant date, termination/retirement date, or a change of control. Includes deferred stock units that were adjusted pursuant to the Employee Matters Agreement between Varian Medical Systems, Inc. ("Varian") and Varex Imaging Corporation ("Varex") relating to the January 28, 2017 distribution by Varian to its stockholders of all of the outstanding shares of the common stock of Varex. Deferred stock units that were outstanding at the time of the distribution were adjusted by multiplying the number of shares subject thereto by 1.1303 and rounding to the nearest whole share. /s/ Franco N. Palomba, Attorney in Fact for Timothy E. Guertin 2017-02-13