X0609 4 2026-05-19 0001853513 Mister Car Wash, Inc. MCW 0001531051 Green Equity Investors VI, L.P. false 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 true false true false 0001632071 GEI Capital VI, LLC false 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 true false true false 0001531059 Green Equity Investors Side VI, L.P. false 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 true false true false 0001632074 Green VI Holdings, LLC false 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 true false true false 0001175523 Leonard Green & Partners, L.P. false 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 true false true false 0001568921 LGP Associates VI-A LLC false 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 true false true false 0001568923 LGP Associates VI-B LLC false 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 true false true false 0001175525 LGP MANAGEMENT INC false 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 true false true false 0001632725 PERIDOT COINVEST MANAGER LLC false 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 true false true false false Common Stock 2026-05-19 4 J false 134812845 7.00 D 0 D Common Stock 2026-05-19 4 J false 80348253 7.00 D 0 D Common Stock 2026-05-19 4 J false 315683 7.00 D 0 D Common Stock 2026-05-19 4 J false 3736298 7.00 D 0 D In connection with the terms of an Agreement and Plan of Merger, dated February 17, 2026 (the "Merger Agreement"), by and among the Issuer, MCW Parent, LP ("Parent"), Boson Merger Sub, Inc., a wholly owned subsidiary of Parent ("Merger Sub"), and, solely for purposes of certain provisions in the Merger Agreement, Mister Car Wash Holdings, Inc., a wholly owned subsidiary of the Issuer, Merger Sub merged with and into the Issuer, with the Issuer continuing as the surviving corporation (the "Merger"). Immediately prior to the effective time of the Merger, pursuant to the Contribution Agreement, dated February 17, 2026, by and among Parent, Green Equity Investors VI, L.P. ("GEI VI"), Green Equity Investors Side VI, L.P. ("GEI Side VI"), LGP Associates VI-A LLC ("Associates VI-A") and LGP Associates VI-B LLC ("Associates VI-B"), the shares of the Issuer's Common Stock ("Common Stock"), par value $0.01 (the "Shares"), owned by the Reporting Persons were contributed and assigned to Parent in exchange for equity interests in Parent (together with the Merger, the "Transaction"). In accordance with the terms of the Merger Agreement, at the effective time of the Merger, the Shares were automatically cancelled and extinguished without any conversion thereof or consideration paid therefor. Represents shares of Common Stock previously owned by GEI VI that were cancelled as part of the Transaction. Represents shares owned by GEI VI. GEI Capital VI, LLC ("Capital") is the general partner of GEI VI and GEI Side VI. Green VI Holdings, LLC ("Holdings") is a limited partner of GEI VI and GEI Side 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 manager of Associates VI-A and 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 (the "Exchange Act"), 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. 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 of the Exchange Act or for any other purpose. Represents shares of Common Stock previously owned by GEI Side VI that were cancelled as part of the Transaction. Represents shares of Common Stock owned by GEI Side VI. Represents shares of Common Stock previously owned by Associates VI-A that were cancelled as part of the Transaction. Represents shares of Common Stock owned by Associates VI-A. Represents shares of Common Stock previously owned by Associates VI-B that were cancelled as part of the Transaction. Represents shares of Common Stock owned by Associates VI-B. Messrs. John Danhakl, Jonathan Seiffer, J. Kristofer Galashan and Jeffrey Suer 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 (together with LGP, the "LGP Entities"). Accordingly, Messrs. Danhakl, Seiffer, Galashan and Suer may 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 Exchange Act. /s/ Andrew C. Goldberg, attorney-in-fact 2026-05-19