X0306 4 2022-03-11 0 0000861878 STERICYCLE INC SRCL 0001409138 Hoffman Richard J 2355 WAUKEGAN ROAD BANNOCKBURN IL 60015 0 1 0 0 SVP & Chief Accounting Officer Common Stock 2022-03-11 4 M 0 1217 A 13752 D Common Stock 2022-03-11 4 F 0 357 55.44 D 13395 D Common Stock 2022-03-12 4 M 0 1254 A 14649 D Common Stock 2022-03-12 4 F 0 368 55.44 D 14281 D Restricted Stock Units 0.0 2022-03-11 4 M 0 1217 D Common Stock 1217 5728 D Restricted Stock Units 0.0 2022-03-12 4 M 0 1254 D Common Stock 1254 4474 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. 357 shares were withheld by the Issuer to satisfy the minimum statutory tax withholding requirements on vesting of RSUs. No shares were sold. 368 shares were withheld by the Issuer to satisfy the minimum statutory tax withholding requirements on vesting of RSUs. This award was granted on March 11, 2020 for 3,651 shares. 1,217 shares vested on March 11, 2022 and the remaining unvested RSUs are scheduled to vest on the next anniversary of the grant date. This award was granted on March 12, 2019 for 3,762 shares. The final 1,254 shares vested on March 12, 2022. /s/ Richard J. Hoffman 2022-03-14