Mark F. Oneil

Companies

• CarMaxBoard member Oct 17, 2019 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• CarMax KMX49,870 shares²$2.6M at $51.73Jun 29, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jun 26, 2026Granted 3,696 shares of CarMax²
• Jun 24, 2026Bought 4,800 shares at $52.36 of CarMax³
• Jun 24, 2026Bought 4,800 shares at $52.36 of CarMax³
• Oct 2, 2025Bought 10,816 shares at $46.21 of CarMax⁴
• Jun 30, 2025Granted 2,753 shares of CarMax⁵
• Jul 1, 2024Granted 2,598 shares of CarMax⁶
• Jun 30, 2023Granted 2,210 shares of CarMax⁷
• Jul 1, 2022Granted 1,996 shares of CarMax⁸
• Oct 16, 2020Bought 191 shares at $93.17 of CarMax⁹