FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Chimienti Mayra Idali
   2. Issuer Name and Ticker or Trading Symbol
Mister Car Wash, Inc. [MCW] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
See Remarks
(Last)
(First)
(Middle)
C/O MISTER CAR WASH, INC., 222 E 5TH STREET		 3. Date of Earliest Transaction (Month/Day/Year)
05/13/2021
(Street)

TUSCON, AZ 85705		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 08/24/2021   M   39,037 A $ 0.66 294,998 D  
Common Stock 08/24/2021   F   1,327 D $ 19.42 293,671 D  
Common Stock 08/24/2021   S   37,710 D $ 19.42 255,961 D  
Common Stock 08/24/2021   M   9,561 A $ 0.27 9,561 I By JMC Familia Trust
Common Stock 08/24/2021   F   134 D $ 19.42 9,427 I By JMC Familia Trust
Common Stock 08/24/2021   S   9,427 D $ 19.42 0 I By JMC Familia Trust

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) $ 0.66 (1) 05/13/2021   G V   130,368   (2) 09/02/2024 Common Stock 130,368 $ 0 14,092 D  
Stock Option (Right to Buy) $ 0.27 05/13/2021   G V   157,663   (2) 08/18/2023 Common Stock 157,663 $ 0 0 D  
Stock Option (Right to Buy) $ 0.66 (1) 08/24/2021   M     39,037   (3) 09/02/2024 Common Stock 39,037 $ 0 183,875 D  
Stock Option (Right to Buy) $ 0.27 08/24/2021   M     9,561   (2) 08/18/2023 Common Stock 9,561 $ 0 148,102 (4) I By JMC Familia Trust
Stock Option (Right to Buy) $ 0.66 (1)               (2) 08/18/2023 Common Stock 130,368   130,368 (4) I By JMC Familia Trust

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Chimienti Mayra Idali
C/O MISTER CAR WASH, INC.
222 E 5TH STREET
TUSCON, AZ 85705		       See Remarks  

Signatures

 /s/ Lisa Funk, as Attorney-in-Fact for Mayra Chimienti   08/26/2021
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The exercise price of the option was inadvertently reported as $0.65 per share on the Form 3 filed on June 25, 2021. The actual exercise of the option was $0.66 per share.
(2) The option is fully vested and exercisable.
(3) The option vests and becomes exercisable in 5 equal annual installments beginning on November 25, 2017.
(4) On May 13, 2021, the reporting person transferred 288,000 stock options of the Issuer to the JMC Familia Trust.
 
Remarks:
Vice President, Operations Services

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