Wednesday, October 28, 2026
Data from SEC filings, checked daily
Public filings, plainly told
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CARMAX INC (KMX): Insider Trades and Fund Holdings

What insiders and tracked funds have reported about CARMAX INC in SEC filings.

0Insider buys, 12 months
$0Bought by insiders, 12 months
$0Sold by insiders, 12 months
3Tracked funds holding
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Tracked funds that report KMX

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

FundQuarterSharesValue% of portfolioChange
Starboard ValueQ2 20263,206,438$169.6M3.75%▼ −48.3%
Renaissance TechnologiesQ2 2026864,362$45.7M0.06%▼ −30.6%
Markel GroupQ2 2026136,500$7.22M0.05%No change
Bridgewater AssociatesQ2 20260$00.00%▼ Sold out
Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →