X0609 4/A 2026-05-19 2026-05-19 true 0001853513 Mister Car Wash, Inc. MCW 0001590836 Galashan John Kristofer false 11111 SANTA MONICA BLVD. SUITE 2000 LOS ANGELES CA 90025 true false true false false Common Stock 2026-05-19 4 J false 219213079 7 D 0 I See footnote. 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, GEI Side VI, Associates VI-A and Associates VI-B that were cancelled as part of the Transaction. Of the shares of Common Stock reported, 134,812,845 were held by GEI VI, 80,348,253 were held by GEI Side VI, 315,683 were held by Associates VI-A, and 3,736,298 were held by Associates VI-B. Represents shares owned by GEI VI, GEI Side VI, Associates VI-A and Associates VI-B. Mr. Galashan, 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. Mr. Galashan disclaims beneficial ownership of the shares of Common Stock reported herein, except to the extent of his pecuniary interest therein. This report shall not otherwise be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 of the Exchange Act or for any other purpose. This amendment is being filed to check the box indicating that the Reporting Person is no longer subject to Section 16. /s/ Andrew C. Goldberg, attorney-in-fact 2026-05-19