Portillo’s(PTLO) - 2025 Q3 - Quarterly Report

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FOR THE QUARTERLY PERIOD ENDED September 28, 2025 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO COMMISSION FILE NUMBER: 001-40951 FORM 10- Q PORTILLO'S INC. (Exact name of registrant as specified in its charter) Delaware 87-1104304 (State or other jurisdiction of incorpo ...