X0306 4 2016-02-10 0 0000932696 INSIGHT ENTERPRISES INC NSIT 0001541189 Dodenhoff Steven W. 6820 SOUTH HARL AVENUE TEMPE AZ 85283 0 1 0 0 President, US Common Stock 2016-02-10 4 M 0 1620 0.00 A 16949 D Common Stock 2016-02-10 4 F 0 611 22.91 D 16338 D Restricted Stock Units 2016-02-10 4 M 0 1620 0.00 D Common Stock 1620 0 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 10, 2012 with vesting to occur in four equal annual installments beginning February 10, 2013. Lisanne Steinheiser, by Power of Attorney, for Steven W. Dodenhoff 2016-02-11