CarMax (NYSE: KMX) director O’Shaughnessy submits Form 3 insider report

Rhea-AI Filing Summary

CarMax Inc director Robert O’Shaughnessy has filed a Form 3 insider ownership report. The filing identifies him as a reporting person for CarMax Inc and shows no reported transactions or derivative security positions in this submission.

Key Figures

Buy transactions reported: 0 transactions Sell transactions reported: 0 transactions Net shares bought or sold: 0 shares

3 metrics

Buy transactions reported 0 transactions Form 3 transaction summary buyCount

Sell transactions reported 0 transactions Form 3 transaction summary sellCount

Net shares bought or sold 0 shares Form 3 transaction summary netBuySellShares

Key Terms

Form 3, reporting person, derivative

3 terms

Form 3 regulatory

"INSIDER FILING DATA (Form 3): {"

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.

reporting person regulatory

""reportingPersons": [ { "name": "OShaughnessy Robert""

derivative financial

""derivativeSummary": [],"

A derivative is a financial contract whose value depends on the price or performance of another asset or measure — for example a stock, index, interest rate, commodity, or currency. Investors use derivatives like insurance or leveraged bets to hedge risk, speculate, or gain exposure without owning the underlying asset; they can protect portfolios but also amplify losses and introduce counterparty and market risk.

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

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^*

OShaughnessy Robert

(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)

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)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Exhibit 24.1 Power of Attorney

No securities are beneficially owned.

	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)

FAQ

What does the CarMax (KMX) Form 3 for Robert O’Shaughnessy show?

The Form 3 lists Robert O’Shaughnessy as a reporting person and director of CarMax Inc. It reports no buy, sell, acquire, or dispose transactions and shows no derivative security positions in this filing.

Are there any share purchases or sales in Robert O’Shaughnessy’s CarMax Form 3?

No. The transaction summary in this Form 3 shows zero buy transactions, zero sell transactions, and no net buy or sell activity, indicating there are no reported trades associated with this submission.

Does the CarMax Form 3 for Robert O’Shaughnessy report any derivative securities?

No. The derivative summary section of the filing is empty, and the transaction summary shows zero derivative transactions, meaning no options, warrants, or other derivative positions are reported in this Form 3.

How many transactions are reported in this CarMax (KMX) Form 3 filing?

The filing reports no transactions. BuyCount, sellCount, acquireCount, disposeCount, and otherCount are all zero, and netBuySellShares is also zero, indicating no transaction activity is disclosed in this Form 3.

What insider role does Robert O’Shaughnessy have at CarMax in this Form 3?

The Form 3 identifies Robert O’Shaughnessy as a director of CarMax Inc. He is not listed as an officer and is not marked as a ten percent owner in the provided filing data.