X0306 4 2020-11-16 0000203527 VARIAN MEDICAL SYSTEMS INC VAR 0001531738 KENNEDY KOLLEEN T C/O VARIAN MEDICAL SYSTEMS, INC. 3100 HANSEN WAY, MAIL STOP E327 PALO ALTO CA 94304-1038 1 Pres. Proton Solutions, CGO Common Stock 2020-11-16 4 M 0 400 131.77 A 27518 D Common Stock 2020-11-16 4 S 0 400 173.7019 D 27118 D Non Qualified Stock Option (Right to Buy) 131.77 2020-11-16 4 M 0 400 0 D 2026-02-14 Common Stock 400 6002 D This transaction is pursuant to the filer's SEC Rule10b5-1 Stock Plan The 400 shares were sold in multiple transactions executed on the same day at prices ranging from $173.61 to $173.98. The detailed breakdown of executed sales will be furnished upon request. Stock option granted under the Varian Medical Systems, Inc. Fifth Amended and Restated 2005 Omnibus Stock Plan which complies with Rule 16b-3. The option vests as follows: one third on February 14, 2020, and the remaining shares in 24 equal installments over the 24 months following the first vesting date. /s/ Michael B. Dunn, attorney-in-fact for Kolleen Kennedy 2020-11-17