X0508 4 2023-10-24 0 0000717954 UNIFIRST CORP UNF 0001261137 DIFILLIPPO DAVID A C/O UNIFIRST CORP 68 JONSPIN ROAD WILMINGTON MA 01887 0 1 0 0 Executive VP of Operations 0 Common Stock 2023-10-24 4 A 0 460 0.00 A 15490 D Common Stock 2023-10-24 4 F 0 196 163.99 D 15294 D Represents restricted stock units that were earned based on the achievement of certain performance criteria and which vested. Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units. Consists of 247 restricted stock units that vest in one remaining annual installments on October 31, 2023, 388 restricted stock units that vest in two remaining equal annual installments on October 31, 2023 and October 31, 2024, 702 restricted stock units that vest in three remaining annual equal installments on October 31, 2023, October 31, 2024 and October 31, 2025, 896 restricted stock units that vest in four remaining equal annual installments on October 31, 2023, October 31, 2024, October 31, 2025 and October 31, 2026, 1,378 restricted stock units that vest in five equal annual installments on October 31, 2023, October 31, 2024, October 31, 2025, October 31, 2026 and October 31, 2027 and 11,683 shares of Common Stock owned by the reporting person. /s/ Steven S. Sintros, Attorney-in-Fact 2023-10-26