X0306 4 2018-03-06 0000203527 VARIAN MEDICAL SYSTEMS INC VAR 0001034462 ILLINGWORTH DAVID J C/O VARIAN MEDICAL SYSTEMS, INC. 3100 HANSEN WAY M/S E-327 PALO ALTO CA 94304 1 Common Stock 2018-03-06 4 M 0 5651 57.27 A 12737 D Common Stock 2018-03-06 4 S 0 5651 122.5553 D 7086 D Non Qualified Stock Option (Right to Buy) 57.27 2018-03-06 4 M 0 5651 0 D 2012-02-10 2019-02-10 Common Stock 5651 0 D The stock options 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. Stock options that were outstanding at the time of the distribution were adjusted by multiplying the number of shares subject thereto by 1.1303 and rounding down to the nearest whole share, and dividing the per share exercise price by 1.1303 and round up to the nearest cent. The 5,651 shares were sold in multiple transactions executed on the same day at prices ranging from $122.55 to $122.66. The detailed breakdown of executed sales will be furnished upon request. Stock option granted under the Varian Medical Systems, Inc. Third Amended and Restated 2005 Omnibus Stock Plan, which complies with Rule 16b-3. /s/ Franco N. Palomba, attorney -in-fact for David J. Illingworth 2018-03-07