CARMAX INC (KMX) Stock Institutional Trading Activity


CARMAX INC (KMX) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Vulcan Value Partners, Ariel Appreciation Fund, Turtle Creek Asset Management, and Giverny Capital. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2022Ariel Appreciation FundBuy364,008847,509$51,604,823
Q4 2022Renaissance Technologies LLCBuy753,500887,400$54,034
Q4 2022Giverny CapitalBuy207,7701,435,307$87,396
Q4 2022Hillman Value FundSell-1,6097,302$444,618
Q4 2022Turtle Creek Asset ManagementBuy1,472,9682,919,939$177,795,086
Q4 2022Akre Capital ManagementSell-2,062,0005,291,022$322,170,330
Q4 2022Sequoia FundSell-197,2026,271,401$381,865,607
Q3 2022Ariel Appreciation FundSell-465483,501$31,921
Q3 2022Dodge & Cox Stock FundSell-4,0003,350$221
Q3 2022Hillman Value FundBuy2,5888,911$589
Q3 2022Renaissance Technologies LLCSell-175,300133,900$8,840
Q3 2022Giverny CapitalBuy30,6331,227,537$81,042
Q3 2022Turtle Creek Asset ManagementBuy397,8911,446,971$95,529
Q3 2022Sequoia FundSell-239,4036,468,603$427,057
Q3 2022Akre Capital ManagementBuy4,8307,353,022$485,447
Q2 2022Ariel Appreciation FundBuy42,956483,966$43,789
Q2 2022Dodge & Cox Stock FundBuy3,6007,350$665
Q2 2022Hillman Value FundBuy6,3236,323$572
Q2 2022Turtle Creek Asset ManagementBuy154,3581,049,080$94,921
Q2 2022Giverny CapitalBuy44,9231,196,904$108,296
Q2 2022Sequoia FundSell-189,7686,708,006$606,940
Q2 2022Akre Capital ManagementBuy8,2407,348,192$664,864
Q1 2022Dodge & Cox Stock FundSell-3003,750$362
Q1 2022Ariel Appreciation FundBuy152,644441,010$42,549
Q1 2022Turtle Creek Asset ManagementBuy409,208894,722$86,323
Q1 2022Giverny CapitalBuy42,7421,151,981$111,143
Q1 2022Sequoia FundSell-71,5156,897,774$665,497
Q1 2022Akre Capital ManagementBuy49,7807,339,952$708,159
Q4 2021Ariel Appreciation FundSell-29,823288,366$37,554
Q4 2021Turtle Creek Asset ManagementBuy4,600485,514$63,228

Frequently asked questions about KMX activity

  • Which institutional owners are buying KMX?

    Institutional owners buying KMX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in KMX activity?

    "Buy" means an investor increased their reported position in KMX compared to the prior reporting period. This reflects growing exposure to CARMAX INC (KMX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in KMX increasing?

    Institutional interest in KMX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.