Ticker | Value | Shares | Price | Security | Type | Insider | Title | Return | Flags | Date |
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Mark F. Oneil currently holds 24,690 shares of CARMAX INC (KMX), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mark F. Oneil has been a net seller of KMX stock. They have purchased $752.0K and sold $39.3M worth of shares.
Mark F. Oneil's most recent insider trade was on Oct 2, 2025, when they purchased 10,816 shares at $46.21 per share.
Mark F. Oneil serves as Executive at CARMAX INC (KMX). They have executed 424 insider transactions totaling $40.1M over their tenure at the company.
Mark F. Oneil holds the position of Executive at CARMAX INC, where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 20 years and currently hold a stake valued at $0.
Mark F. Oneil has shown a selling trading pattern, with $752.0K in total purchases and $39.3M in total sales across all transactions. Their most recent activity indicates a tendency to reduce their position.
The largest transaction by Mark F. Oneil was on May 26, 2015, when they sold $4.4M worth of TRAK shares. This transaction involved 105,000 shares at $41.80 per share.
Mark F. Oneil currently owns 24,690 shares of CARMAX INC (KMX), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of Mark F. Oneil's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. Mark F. Oneil has 424 Form 4 filings on record as an insider at CARMAX INC.
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