CarMax (KMX) director William C. Cobb reports 300 shares via family trust

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

CarMax Inc. director William C. Cobb filed an initial ownership report showing indirect holdings of CarMax common stock. The filing lists 300 shares of common stock held through the William & Carole Cobb 2000 Family Trust, with no new purchase or sale reported.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider COBB WILLIAM C

Role null

Type	Security	Shares	Price	Value
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 300 shares (Indirect, William & Carole Cobb 2000 Family Trust)

Footnotes (1)

Key Figures

Indirectly owned shares: 300 shares

1 metrics

Indirectly owned shares 300 shares CarMax common stock held via William & Carole Cobb 2000 Family Trust

Key Terms

Form 3, Common Stock, indirect ownership, Family Trust

4 terms

Form 3 regulatory

"filed an initial ownership report showing indirect holdings"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

Common Stock financial

"The filing lists 300 shares of common stock held"

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.

indirect ownership financial

"held through the William & Carole Cobb 2000 Family Trust"

Family Trust financial

"through the William & Carole Cobb 2000 Family Trust"

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Understanding Insider Trading Forms →

Available on EDGAR 06/24/2026 - 05:23 PM Accepted by SEC EDGAR 06/24/2026 - 05:22 PM

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF 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

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

COBB WILLIAM C

(Last)

(First)

(Middle)

12800 TUCKAHOE CREEK PARKWAY

(Street)

RICHMOND

VIRGINIA

23238

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
06/23/2026

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

3a. Foreign Trading Symbol

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

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

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

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	300	I	William & Carole Cobb 2000 Family Trust

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)

Explanation of Responses:

Remarks:

Exhibit 24.1 Power of Attorney

	Christine Carter, attorney-in-fact	06/24/2026
	** 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 5 (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 3: SEC 1473 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What does William C. Cobb’s Form 3 filing for KMX report?

The Form 3 reports William C. Cobb’s initial beneficial ownership in CarMax common stock. It shows 300 shares held indirectly through the William & Carole Cobb 2000 Family Trust, with no buy or sell transaction disclosed in this filing.

How many CarMax (KMX) shares does William C. Cobb report on Form 3?

The filing shows beneficial ownership of 300 shares of CarMax common stock. These shares are not held directly in his name but are reported as indirectly owned through the William & Carole Cobb 2000 Family Trust, according to the ownership table.

Is William C. Cobb’s CarMax Form 3 a purchase or sale of KMX shares?

The Form 3 does not report a purchase or sale of shares. It is an initial ownership statement listing 300 CarMax common shares held indirectly via the William & Carole Cobb 2000 Family Trust, with the transaction direction marked as unknown.

How are William C. Cobb’s KMX shares held according to the Form 3?

The shares are reported as indirectly owned. The Form 3 identifies the nature of ownership as the William & Carole Cobb 2000 Family Trust, showing 300 CarMax common shares attributed to this trust rather than directly to Cobb personally.

What role does William C. Cobb have at CarMax (KMX) in this Form 3?

The Form 3 identifies William C. Cobb as a director of CarMax Inc. It notes he is not listed as an officer or ten percent owner, and the filing focuses on his indirect beneficial ownership of 300 common shares through a family trust.