X0306 4 2020-05-01 0 0000861878 STERICYCLE INC SRCL 0001754743 Miller Cindy J 2355 WAUKEGAN ROAD BANNOCKBURN IL 60015 0 1 0 0 Chief Executive Officer Common Stock 2020-05-01 4 M 0 1358 A 4636 D Common Stock 2020-05-01 4 F 0 398 46.31 D 4238 D Restricted Stock Units 0.0 2020-05-01 4 M 0 1358 D Common Stock 1358 51795 D Each restricted stock unit (RSU) represents the right to receive, at settlement, one share of common stock. This transaction represents the settlement of RSUs in shares of common stock on their scheduled vesting date. No shares were sold. 398 shares were withheld by the Issuer to satisfy the minimum statutory tax withholding requirements on vesting of RSUs. This award was granted on May 2, 2019 for 4,075 shares. 1,358 shares vested on May 2, 2020 and the remaining unvested RSUs will continue to vest in equal annual installments on the next 2 anniversaries of the grant date. All unvested RSUs are subject to continued employment through the applicable vesting date. /s/ Cindy J. Miller 2020-05-04