X0306 4 2020-04-13 0000203527 VARIAN MEDICAL SYSTEMS INC VAR 0001753950 Toth Christopher A. C/O VARIAN MEDICAL SYSTEMS, INC. 3100 HANSEN WAY M/S E327 PALO ALTO CA 94304 1 SVP and Pres. Oncology Systems Common Stock 2020-04-13 4 S 0 996 109.3301 D 2253 D Common Stock 2020-04-13 4 S 0 510 110.1781 D 1743 D Common Stock 2020-04-13 4 S 0 119 111.2756 D 1624 D This transaction is pursuant to the filer's SEC Rule10b5-1 Stock Plan The 996 shares were sold in multiple transactions executed on the same day at prices ranging from $108.87 to $109.855. The detailed breakdown of executed sales will be furnished upon request. The 510 shares were sold in multiple transactions executed on the same day at prices ranging from $110.045 to $110.86. The detailed breakdown of executed sales will be furnished upon request. The 119 shares were sold in multiple transactions executed on the same day at prices ranging from $111.255 to $111.85. The detailed breakdown of executed sales will be furnished upon request. /s/ Michael B. Dunn , attorney-in-fact for Christopher A. Toth 2020-04-14