Vanguard Group Inc's Updated Ownership in Portillo's Inc

The Vanguard Group Inc has filed an amendment to its Schedule 13G/A, reporting its ownership of 5,197,441 shares of Portillo's Inc common stock, representing 7.22% of the total shares outstanding. The filing indicates that Vanguard Group Inc holds these shares on behalf of its clients, including investment companies registered under the Investment Company Act of 1940 and other managed accounts. The shares are held in the ordinary course of business and not for the purpose of influencing the control of Portillo's Inc. The filing was signed by Ashley Grim, Head of Global Fund Administration, on October 30, 2025.