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 2023Meritage GroupBuy2243,467$266
Q4 2023Sequoia Financial AdvisorsBuy3,0233,023$231,985
Q4 2023Hillman Value FundBuy75,38779,424$6,094,998
Q4 2023Giverny CapitalBuy13,1361,533,574$117,686,469
Q4 2023Turtle Creek Asset ManagementBuy95,6632,551,822$195,826,820
Q4 2023Akre Capital ManagementSell-6,7672,726,695$209,246,574
Q4 2023Sequoia FundSell-1,438,4504,126,906$316,698,766
Q3 2023Ariel Appreciation FundSell-29,674769,895$54,454,673
Q3 2023Meritage GroupBuy2783,243$229
Q3 2023Hillman Value FundSell-3,6354,037$285,537
Q3 2023Giverny CapitalBuy20,1981,520,438$107,540,580
Q3 2023Turtle Creek Asset ManagementBuy154,4002,456,159$173,724,126
Q3 2023Akre Capital ManagementSell-117,3442,733,462$193,337,767
Q3 2023Sequoia FundSell-464,8645,565,356$393,637,630
Q2 2023Ariel Appreciation FundSell-97,770799,569$66,923,925
Q2 2023Dodge & Cox Stock FundSell-8002,550$213,435
Q2 2023Meritage GroupSell-16,2762,965$248
Q2 2023Hillman Value FundSell-2627,672$642,147
Q2 2023Giverny CapitalBuy72,1811,500,240$125,570,088
Q2 2023Turtle Creek Asset ManagementSell-773,8802,301,759$192,657,228
Q2 2023Akre Capital ManagementSell-247,6602,850,806$238,612,462
Q2 2023Sequoia FundSell-102,9246,030,220$504,729,414
Q1 2023Lountzis Asset ManagementBuy5,5975,597$360
Q1 2023Ariel Appreciation FundBuy49,830897,339$57,680,951
Q1 2023Renaissance Technologies LLCSell-297,700589,700$37,906
Q1 2023Hillman Value FundBuy6327,934$509,997
Q1 2023Giverny CapitalSell-7,2481,428,059$91,795,633
Q1 2023Turtle Creek Asset ManagementBuy155,7003,075,639$197,702,075
Q1 2023Akre Capital ManagementSell-2,192,5563,098,466$199,169,394
Q1 2023Sequoia FundSell-138,2576,133,144$394,238,497

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.