X0306 4 2023-03-09 0 0000861878 STERICYCLE INC SRCL 0001754743 Miller Cindy J 2355 WAUKEGAN ROAD BANNOCKBURN IL 60015 1 1 0 0 Chief Executive Officer Common Stock 2023-03-09 4 M 0 9519 A 53228 D Common Stock 2023-03-09 4 F 0 4217 44.9 D 49011 D Restricted Stock Units 0.0 2023-03-09 4 M 0 9519 D Common Stock 9519 60730 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. 4,217 shares were withheld by the Issuer to satisfy the minimum statutory tax withholding requirements on vesting of RSUs. This award was granted on March 9, 2021 for 28,556 shares. 9,519 shares vested on March 9, 2023 and the remaining unvested RSUs are scheduled to vest on the next anniversary of the grant date. /s/ Cindy J. Miller 2023-03-10