ONeil Mark F - Insider Non-Derivative Transactions at CARMAX INC (KMX) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Oct 2, 2025, ONeil Mark F's relationship to CARMAX INC (KMX) is Director, and currently has 24,690 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other KMX insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

ONeil Mark F - Insider Non-Derivative Transactions of KMX Common Stock

ONeil Mark F - Insider Non-Derivative Transactions at KMX

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Oct 3, 2025	P -- (Common Stock)	10816	46.21	24690
Jul 1, 2025	Acquisition -- (Common Stock)	2753	0	13874
Jul 2, 2024	Acquisition -- (Common Stock)	2598	0	11121
Jul 1, 2023	Acquisition -- (Common Stock)	2210	0	8523