X0306 4 2021-04-30 0001177394 SYNNEX CORP SNX 0001270709 LEUNG SIMON 44201 NOBEL DRIVE FREMONT CA 94538 1 SVP, GC & Corporate Secretary Common Stock 2021-04-30 4 S 0 4 121.67 D 34147 D Common Stock 2021-04-30 4 S 0 18 121.66 D 34129 D Common Stock 2021-04-30 4 S 0 22 121.65 D 34107 D Common Stock 2021-04-30 4 S 0 23 121.64 D 34084 D Common Stock 2021-04-30 4 S 0 5 121.63 D 34079 D Common Stock 2021-04-30 4 S 0 17 121.61 D 34062 D Common Stock 2021-04-30 4 S 0 14 121.59 D 34048 D Common Stock 2021-04-30 4 S 0 26 121.58 D 34022 D Common Stock 2021-04-30 4 S 0 24 121.57 D 33998 D Common Stock 2021-04-30 4 S 0 16 121.56 D 33982 D Common Stock 2021-04-30 4 S 0 11 121.55 D 33971 D Common Stock 2021-04-30 4 S 0 8 121.54 D 33963 D Common Stock 2021-04-30 4 S 0 2 121.53 D 33961 D Common Stock 2021-04-30 4 S 0 9 121.51 D 33952 D Common Stock 2021-04-30 4 S 0 7 121.50 D 33945 D Common Stock 2021-04-30 4 S 0 26 121.49 D 33919 D Common Stock 2021-04-30 4 S 0 9 121.48 D 33910 D Common Stock 2021-04-30 4 S 0 3 121.47 D 33907 D Common Stock 2021-04-30 4 S 0 11 121.45 D 33896 D Common Stock 2021-04-30 4 S 0 20 121.44 D 33876 D Common Stock 2021-04-30 4 S 0 27 121.43 D 33849 D Common Stock 2021-04-30 4 S 0 32 121.40 D 33817 D Common Stock 2021-04-30 4 S 0 9 121.39 D 33808 D Common Stock 2021-04-30 4 S 0 3 121.38 D 33805 D Common Stock 2021-04-30 4 S 0 9 121.34 D 33796 D Common Stock 2021-04-30 4 S 0 2 121.30 D 33794 D Common Stock 2021-04-30 4 S 0 5 121.29 D 33789 D Common Stock 2021-04-30 4 S 0 4 121.20 D 33785 D The sales reported on this Form 4 were effectuated pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on July 28, 2020. /s/ Simon Y. Leung 2021-05-04