X0306 4 2021-12-13 0 0000717954 UNIFIRST CORP UNF 0001260756 CROATTI CYNTHIA C/O UNIFIRST CORP 68 JONSPIN ROAD WILMINGTON MA 01887 1 1 1 0 Executive Vice President Common Stock 2021-12-13 4 M 0 2000 119.00 A 7473 D Common Stock 2021-12-13 4 D 0 1412 204.00 D 6061 D Common Stock 2021-12-13 4 S 0 588 202.37 D 5473 D Common Stock 68534 I By LLC Stock Appreciation Right 119.00 2021-12-13 4 M 0 2000 0.00 D 2021-10-24 2026-10-24 Common Stock ($0.10 par value) 2000 4000 D Represents shares sold pursuant to a Rule 10b5-1 sales plan. Consists of 1,332 restricted stock units that vest 100% on December 20, 2022, 1,551 restricted stock units that vest 100% on October 22, 2023, 1,174 restricted stock units that vest 60% on October 29, 2022, an additional 20% on October 29, 2023 and the remaining 20% on October 29, 2024 and 1,416 restricted stock units that vest 60% on October 26, 2023, an additional 20% on October 26, 2024 and the remaining 20% on October 26, 2025. Cynthia Croatti is the manager of Trilogy Investment Partners LLC, which as of the date of filing this report, directly owns the reported securities. Cynthia Croatti disclaims beneficial ownership of these reported securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that she is the beneficial owner of the securities for purposes of Section 16 or any other purpose. /s/ Steven S. Sintros, Attorney-in-Fact 2021-12-14