Statement of Changes in Beneficial Ownership (4)

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

OMB APPROVAL

OMB Number:

3235-0287

Estimated average burden
hours per response...

0.5

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * Shamim Mohammad	2. Issuer Name and Ticker or Trading Symbol CARMAX INC [ KMX ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                    _____ 10% Owner __X__ Officer (give title below)    _____ Other (specify below) EVP and CITO
(Last)          (First)          (Middle) 12800 TUCKAHOE CREEK PARKWAY	3. Date of Earliest Transaction (MM/DD/YYYY) 7/21/2021
(Street) RICHMOND, VA 23238 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	7/21/2021		M		22434	A	$73.76	31954	D
Common Stock	7/21/2021		S		14093	D	$135.19 (1)	17861	D
Common Stock	7/21/2021		S		8341	D	$136.40 (2)	9520	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		7. Title and Amount of Securities Underlying Derivative Security (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 Options (Right to Buy)	$73.76	7/21/2021		M			22434	(3)	4/8/2022	Common Stock	22434.0	$0	0	D

Explanation of Responses:
(1)	The shares with respect to this transaction were sold at prices ranging from $134.72 to $135.71. Upon request, the Reporting Person will provide the Securities and Exchange Commission staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price.
(2)	The shares with respect to this transaction were sold at prices ranging from $135.88 to $136.78. Upon request, the Reporting Person will provide the Securities and Exchange Commission staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price.
(3)	The stock options became exercisable with respect to one-fourth of the underlying shares of Common Stock on each of April 8, 2016, April 8, 2017, April 8, 2018 and April 8, 2019 and are now fully exercisable.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Shamim Mohammad 12800 TUCKAHOE CREEK PARKWAY RICHMOND, VA 23238			EVP and CITO

Signatures
Christine Carter, attorney-in-fact		7/23/2021
**Signature of Reporting Person		Date