X0306 4 2022-01-18 0 0001871509 Portillo's Inc. PTLO 0001844608 Glass Noah H. C/O PORTILLO'S INC. 2001 SPRING ROAD, SUITE 400 OAK BROOK IL 60523 1 0 0 0 Class A common stock 2022-01-18 4 A 0 2131 0.00 A 8131 D Represents restricted stock units granted on January 18, 2022, which will vest in full on December 31, 2022, subject to the Reporting Person's continued service with the Issuer through such vesting date and the terms of the applicable award agreement. /s/ Susan Shelton, Attorney-in-Fact 2022-01-20