X0206 3 2021-06-25 0 0001853513 Mister Car Wash, Inc. MCW 0001531051 Green Equity Investors VI, L.P. 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 1 0 1 0 0001632071 GEI Capital VI, LLC 11111 SANTA MONICA BOULEVARD SUITE 2000 LOS ANGELES CA 90025 1 0 1 0 0001531059 Green Equity Investors Side VI, L.P. 11111 SANTA MONICA BOULEVARD SUITE 2000 LOS ANGELES CA 90025 1 0 1 0 0001632074 Green VI Holdings, LLC 11111 SANTA MONICA BOULEVARD SUITE 2000 LOS ANGELES CA 90025 1 0 1 0 0001175523 Leonard Green & Partners, L.P. 11111 SANTA MONICA BLVD STE 2000 LOS ANGELES CA 90025 1 0 1 0 0001568921 LGP Associates VI-A LLC 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 1 0 1 0 0001568923 LGP Associates VI-B LLC 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 1 0 1 0 0001175525 LGP MANAGEMENT INC 11111 SANTA MONICA BOULEVARD SUITE 2000 LOS ANGELES CA 90025 1 0 1 0 0001632725 PERIDOT COINVEST MANAGER LLC 11111 SANTA MONICA BOULEVARD LOS ANGELES, CA 90025 1 0 1 0 Common Stock 146604648 D Common Stock 87376152 D Common Stock 343296 D Common Stock 4063104 D Represents the shares of Common Stock owned by Green Equity Investors VI, L.P. ("GEI VI"). Each of the Reporting Persons disclaims beneficial ownership of the shares of Common Stock reported herein and not held for record by such Reporting Person, except to the extent of its pecuniary interest therein. This report shall not otherwise be deemed an admission that the Reporting Persons are the beneficial owners of such securities not held of record by the respective Reporting Person, for purposes of Section 16 or for any other purpose. GEI Capital VI, LLC ("Capital") is the general partner of GEI VI and Green Equity Investors Side VI, L.P. ("GEI Side VI"). Green VI Holdings, LLC ("Holdings") is a limited partner of GEI VI. Leonard Green & Partners, L.P. ("LGP") is the management company of GEI VI and GEI Side VI, and an affiliate of Capital and Holdings. Peridot Coinvest Manager LLC ("Peridot") is the management company of LGP Associates VI-A LLC ("Associates VI-A") and LGP Associates VI-B LLC ("Associates VI-B"), and an affiliate of Capital and Holdings. LGP Management, Inc. ("LGPM") is the general partner of LGP. Each of GEI VI, GEI Side VI, Associates VI-A, Associates VI-B, Peridot, LGP, LGPM, Capital, and Holdings, directly (whether through ownership or position), or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares of Common Stock held by GEI VI, GEI Side VI, Associates VI-A, or Associates VI-B and, therefore, a "ten percent holder" hereunder. Represents shares of Common Stock owned by GEI Side VI. Represents shares of Common Stock owned by Associates VI-A. Represents shares of Common Stock owned by Associates VI-B. Messrs. John Danhakl, Jonathan Seiffer, and J. Kristofer Galashan are members of the board of directors of the Issuer, and partners of LGP, which is an affiliate of LGPM, Peridot, Capital, Holdings, GEI VI, GEI Side VI, Associates VI-A, and Associates VI-B (the "LGP Entities"). Accordingly, Messrs. Danhakl, Seiffer, and Galashan be determined to represent the interest of the LGP Entities on the board of directors of the Issuer, and accordingly, the LGP Entities may be deemed to be directors for purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Exhibit 24 - Power of Attorney /s/ Andrew C. Goldberg, Attorney-in-fact 2021-06-25