CarMax (NYSE: KMX) director adds 574 shares in open-market purchase

Rhea-AI Filing Summary

CarMax director Marcella Shinder reported an open-market purchase of CarMax common stock. On June 25, 2026, she bought 574 shares at an average price of $52.01 per share. After this transaction, she directly owns 24,993 CarMax shares, according to the Form 4.

Insider Trade Summary

Net Buyer: 574 shares ($29,854)

Net Buy 1 txn

Insider Shinder Marcella

Role null

Bought 574 shs ($30K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	574	$52.01	$30K

Holdings After Transaction: Common Stock — 24,993 shares (Direct, null)

Footnotes (1)

Key Figures

Shares purchased: 574 shares Purchase price: $52.01 per share Transaction value: $29,853.74 +1 more

4 metrics

Shares purchased 574 shares Open-market purchase on June 25, 2026

Purchase price $52.01 per share Average price for the 574-share buy

Transaction value $29,853.74 Estimated total for 574 shares at $52.01

Shares owned after 24,993 shares Direct holdings post-transaction

Key Terms

open-market purchase, Common Stock, Form 4

3 terms

open-market purchase financial

"transaction_action is listed as "open-market purchase" for this trade"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Common Stock financial

"The security_title for the transaction is given as "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 regulatory

"INSIDER FILING DATA (Form 4) describes this insider transaction"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/26/2026 - 04:14 PM Accepted by SEC EDGAR 06/26/2026 - 04:13 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Shinder Marcella

(Last) (First) (Middle)

12800 TUCKAHOE CREEK PARKWAY

(Street)

RICHMOND VIRGINIA 23238

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
CARMAX INC [ KMX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/25/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	06/25/2026		P		574	A	$52.01	24,993	D

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 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: 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

Explanation of Responses:

Remarks:

Exhibit 24.1 - Power of Attorney

	Christine Carter, attorney-in-fact	06/26/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did CarMax (KMX) disclose in this Form 4?

CarMax disclosed that director Marcella Shinder made an open-market purchase of 574 shares of CarMax common stock at an average price of $52.01 per share, increasing her directly owned stake as reported in the Form 4.

How many CarMax (KMX) shares did the director buy and at what price?

Director Marcella Shinder bought 574 shares of CarMax common stock in an open-market transaction at an average price of $52.01 per share on June 25, 2026, based on the reported Form 4 details.

What are Marcella Shinder’s CarMax (KMX) holdings after this transaction?

Following the reported open-market purchase, director Marcella Shinder directly owns 24,993 shares of CarMax common stock. This figure reflects her position immediately after buying 574 additional shares as disclosed in the Form 4 filing.

Was the recent CarMax (KMX) insider trade a purchase or sale?

The reported insider trade was a purchase. Director Marcella Shinder executed an open-market purchase of 574 shares of CarMax common stock, coded as a “P” transaction and described as an open-market or private transaction.

Did the CarMax (KMX) Form 4 show any derivative or option exercises?

No derivative or option exercises were reported in this Form 4. The transaction list shows only a non-derivative open-market purchase of CarMax common stock, and the derivativeSummary section is empty in this filing.