X0306 4 2019-02-20 0 0000932696 INSIGHT ENTERPRISES INC NSIT 0001282998 LAMNECK KENNETH T 6820 SOUTH HARL AVENUE TEMPE AZ 85283 1 1 0 0 Chief Executive Officer Common Stock 2019-02-20 4 M 0 7279 0.00 A 229680 D Common Stock 2019-02-20 4 F 0 2087 57.60 D 227593 D Common Stock 2019-02-20 4 M 0 7347 0.00 A 234940 D Common Stock 2019-02-20 4 F 0 3199 57.60 D 231741 D Common Stock 2019-02-20 4 M 0 4272 0.00 A 236013 D Common Stock 2019-02-20 4 F 0 1860 57.60 D 234153 D Common Stock 2019-02-20 4 M 0 6797 0.00 A 240950 D Common Stock 2019-02-20 4 F 0 2960 57.60 D 237990 D Common Stock 2019-02-20 4 M 0 20204 0.00 A 258194 D Common Stock 2019-02-20 4 F 0 7570 57.60 D 250624 D Common Stock 2019-02-20 4 M 0 9611 0.00 A 260235 D Common Stock 2019-02-20 4 F 0 4185 57.60 D 256050 D Common Stock 2019-02-20 4 M 0 27188 0.00 A 283238 D Common Stock 2019-02-20 4 F 0 11840 57.60 D 271398 D Restricted Stock Units 2019-02-20 4 M 0 7279 0.00 D Common Stock 7279 0 D Restricted Stock Units 2019-02-20 4 M 0 7347 0.00 D Common Stock 7347 7347 D Restricted Stock Units 2019-02-20 4 M 0 4272 0.00 D Common Stock 4272 8542 D Restricted Stock Units 2019-02-20 4 M 0 6797 0.00 D Common Stock 6797 20391 D Restricted Stock Units 2019-02-20 4 M 0 20204 0.00 D Common Stock 20204 0 D Restricted Stock Units 2019-02-20 4 M 0 9611 0.00 D Common Stock 9611 9611 D Restricted Stock Units 2019-02-20 4 M 0 27188 0.00 D Common Stock 27188 54376 D Restricted Stock Units 2019-02-20 4 A 0 26042 0.00 A Common Stock 26042 26042 D Restricted Stock Units 2019-02-20 4 A 0 39063 0.00 A Common Stock 39063 39063 D Insight Enterprises, Inc. has withheld the number of whole shares necessary to satisfy the minimum statutory tax withholding obligations. The value of the vested shares (and the taxable income) is calculated based on the closing price on the vesting date or next preceding trading date in the case that the vesting date is a non-trading date. Each restricted stock unit represents a contingent right to receive one share of Common Stock of Insight Enterprises, Inc. The restricted stock units were granted on February 20, 2015, with vesting to occur in four equal annual installments beginning February 20, 2016. The restricted stock units were granted on February 20, 2016 with vesting to occur in four equal annual installments beginning February 20, 2017. The restricted stock units were granted on February 20, 2017 with vesting to occur in four equal annual installments beginning February 20, 2018. The restricted stock units were granted on February 20, 2018 with vesting to occur in four equal annual installments beginning February 20, 2019. The number of restricted stock units increases or decreases with the Company's performance against specific objectives defined in advance of the grant date, and the restricted stock units will vest in three equal annual installments beginning February 20, 2017. The number of restricted stock units increases or decreases with the Company's performance against specific objectives defined in advance of the grant date, and the restricted stock units will vest in three equal annual installments beginning February 20, 2018. The number of restricted stock units increases or decreases with the Company's performance against specific objectives defined in advance of the grant date, and the restricted stock units will vest in three equal annual installments beginning February 20, 2019. The restricted stock units were granted on February 20, 2019, with vesting to occur in four equal annual installments beginning February 20, 2020. The number of restricted stock units increases or decreases with the Company's performance against specific objectives defined in advance of the grant date, and the restricted stock units will vest in three equal annual installments beginning February 20, 2020. Lisanne Steinheiser, by Power of Attorney, for Kenneth T. Lamneck 2019-02-22