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.

Explore more:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2024Ariel Appreciation FundSell-88,979620,743$50,751,948
Q4 2024Akre Capital ManagementSell-629,714667,437$54,569,649
Q4 2024Renaissance Technologies LLCBuy362,300695,900$56,896,784
Q4 2024Vulcan Value PartnersSell-108,5591,327,037$108,445,939
Q4 2024Giverny CapitalBuy45,7441,682,869$137,591,369
Q4 2024Turtle Creek Asset ManagementBuy56,9062,590,071$211,764,205
Q3 2024Sequoia Financial AdvisorsSell-1392,884$223,164
Q3 2024Hillman Value FundBuy535115,219$8,915,646
Q3 2024Renaissance Technologies LLCSell-256,100333,600$25,813,968
Q3 2024Ariel Appreciation FundSell-281709,722$54,918,289
Q3 2024Akre Capital ManagementSell-848,3581,297,151$100,373,544
Q3 2024Vulcan Value PartnersSell-391,5431,435,596$111,086,419
Q3 2024Giverny CapitalBuy42,1771,637,125$126,680,733
Q3 2024Sequoia FundSell-1,971,9531,825,488$141,256,261
Q3 2024Turtle Creek Asset ManagementSell-238,2872,533,165$196,016,308
Q2 2024Ariel Appreciation FundBuy56,856710,003$52,071,620
Q2 2024Vulcan Value PartnersBuy1,369,9861,827,139$133,773
Q2 2024Hillman Value FundSell-295114,684$8,410,925
Q2 2024Giverny CapitalBuy12,5501,594,948$116,973,486
Q2 2024Akre Capital ManagementSell-556,3202,145,509$157,351,630
Q2 2024Turtle Creek Asset ManagementBuy241,8112,771,452$203,258,290
Q2 2024Sequoia FundSell-170,6373,797,441$278,504,323
Q1 2024Ariel Appreciation FundSell-28,621653,147$56,895,635
Q1 2024Vulcan Value PartnersBuy457,153457,153$39,786
Q1 2024Hillman Value FundBuy35,555114,979$10,015,821
Q1 2024Giverny CapitalBuy48,8241,582,398$137,842,690
Q1 2024Turtle Creek Asset ManagementSell-22,1812,529,641$220,357,028
Q1 2024Akre Capital ManagementSell-24,8662,701,829$235,356,324
Q1 2024Sequoia FundSell-158,8283,968,078$345,659,275
Q4 2023Ariel Appreciation FundSell-88,127681,768$52,318,876

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.