StockSEC filings
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
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.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Starboard Value | 3,206,438 | $169.6M | ▼ −48.3% |
| Renaissance Technologies | 864,362 | $45.7M | ▼ −30.6% |
| Markel Group | 136,500 | $7.22M | No change |
| Bridgewater Associates | 0 | $0 | ▼ 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 →