X0306 4 2018-02-15 0000203527 VARIAN MEDICAL SYSTEMS INC VAR 0001330270 KUO JOHN W C/O VARIAN MEDICAL SYSTEMS, INC. 3100 HANSEN WAY M/S E-327 PALO ALTO CA 94304 1 SVP, Gen Counsel and Secretary Common Stock 2018-02-15 4 M 0 863 67.12 A 28224 D Common Stock 2018-02-15 4 S 0 600 120.3033 D 27624 D Common Stock 2018-02-15 4 S 0 263 121.1244 D 27361 D Common Stock 2018-02-15 4 M 0 5579 80.40 A 32940 D Common Stock 2018-02-15 4 S 0 3000 120.2677 D 29940 D Common Stock 2018-02-15 4 S 0 2579 121.1719 D 27361 D Common Stock 2018-02-15 4 M 0 1762 A 29123 D Common Stock 2018-02-15 4 M 0 1066 A 30189 D Common Stock 2018-02-15 4 M 0 1119 A 31308 D Common Stock 2018-02-15 4 F 0 1463 121.87 D 29845 D Non Qualified Stock Option (Right to Buy) 67.12 2018-02-15 4 M 0 863 0 D 2023-02-12 Common Stock 863 10354 D Non Qualified Stock Option (Right to Buy) 80.40 2018-02-15 4 M 0 5579 0 D 2024-02-10 Common Stock 5579 11160 D Restricted Stock Units 2018-02-15 4 M 0 1762 D Common Stock 1762 7884 D Restricted Stock Units 2018-02-15 4 M 0 1066 D Common Stock 1066 6818 D Restricted Stock Units 2018-02-15 4 M 0 1119 D Common Stock 1119 5699 D This transaction is pursuant to the filer's SEC Rule10b5-1 Stock Plan The 600 shares were sold in multiple transactions executed on the same day at prices ranging from $119.97 to $120.91. The detailed breakdown of executed sales will be furnished upon request. The 263 shares were sold in multiple transactions executed on the same day at prices ranging from $121.05 to $121.17. The detailed breakdown of executed sales will be furnished upon request. The 3,000 shares were sold in multiple transactions executed on the same day at prices ranging from $119.77 to $120.73. The detailed breakdown of executed sales will be furnished upon request. The 2,579 shares were sold in multiple transactions executed on the same day at prices ranging from $120.82 to $121.49. The detailed breakdown of executed sales will be furnished upon request. Each restricted stock unit represents a contingent right to receive one share of VAR common stock. Represents shares withheld from vested restricted stock units for the payment of federal, state and payroll taxes due on vesting. Stock option granted under the Varian Medical Systems, Inc. Third Amended and Restated 2005 Omnibus Stock Plan which complies with Rule 16b-3. The option vests as follows: one third on 2/12/2017, and the remaining shares in 24 equal installments over the 24 months following the first vesting date. Stock option granted under the Varian Medical Systems, Inc. Fourth Amended and Restated 2005 Omnibus Stock Plan which complies with Rule 16b-3. The option vests as follows: one third on 2/10/2018, and the remaining shares in 24 equal installments over the 24 months following the first vesting date. The restricted stock units vest in three equal installments on February 15, 2016, February 15, 2017, and February 15, 2018. Vested shares will be delivered to the reporting person on vest date. The restricted stock units vest in three equal installments on February 15, 2017, February 15, 2018, and February 15, 2019. Vested shares will be delivered to the reporting person on vest date. The restricted stock units vest in three equal installments on February 15, 2018, February 15, 2019, and February 15, 2020. Vested shares will be delivered to the reporting person on vest date. /s/ Franco N. Palomba, Attorney in Fact for John W. Kuo 2018-02-16