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 2025Vulcan Value PartnersBuy600,7122,928,832$113,210
Q4 2025Ariel Appreciation FundSell-8,122563,483$21,772,983
Q4 2025Renaissance Technologies LLCBuy1,075,7001,149,000$44,397,360
Q3 2025Sequoia FundSell-1,8114,469$200,524
Q3 2025Renaissance Technologies LLCSell-481,50073,300$3,288,971
Q3 2025Hillman Value FundBuy11,87991,489$4,105,111
Q3 2025Ariel Appreciation FundBuy18,628571,605$25,647,916
Q3 2025Giverny CapitalBuy14,1841,670,114$74,938,015
Q3 2025Vulcan Value PartnersBuy1,338,1342,328,120$104,568,556
Q3 2025Turtle Creek Asset ManagementBuy16,6272,707,477$121,484,493
Q2 2025Sequoia Financial AdvisorsSell-3363,031$203,714
Q2 2025Hillman Value FundSell-4,49179,610$5,350,588
Q2 2025Akre Capital ManagementSell-54,675150,600$10,121,826
Q2 2025Ariel Appreciation FundSell-6,172552,977$37,165,585
Q2 2025Renaissance Technologies LLCBuy487,300554,800$37,288,108
Q2 2025Vulcan Value PartnersSell-228,141989,986$72,272,227
Q2 2025Giverny CapitalBuy14,3081,655,930$111,295,055
Q2 2025Turtle Creek Asset ManagementBuy88,6002,690,850$180,852,029
Q1 2025Sequoia Financial AdvisorsBuy1763,367$262,357
Q1 2025Sequoia FundSell-21,2916,280$489,338
Q1 2025Renaissance Technologies LLCSell-628,40067,500$5,259,600
Q1 2025Hillman Value FundSell-29,76884,101$6,553,150
Q1 2025Akre Capital ManagementSell-462,162205,275$15,995,028
Q1 2025Ariel Appreciation FundSell-61,594559,149$43,568,890
Q1 2025Vulcan Value PartnersSell-108,9101,218,127$95,004,237
Q1 2025Giverny CapitalSell-41,2471,641,622$127,915,186
Q1 2025Turtle Creek Asset ManagementBuy12,1792,602,250$202,767,320
Q4 2024Sequoia Financial AdvisorsBuy3073,191$260,897
Q4 2024Sequoia FundSell-1,797,91727,571$2,254,205
Q4 2024Hillman Value FundSell-1,350113,869$9,309,929

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.