CarMax Ownership | Who Owns CarMax?
CarMax Ownership Summary
CarMax is owned by 96.50% institutional investors, 0.43% insiders, and 3.07% retail investors. Vanguard group is the largest institutional shareholder, holding 11.21% of KMX shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.21% of its assets in CarMax shares.
KMX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | CarMax | 96.50% | 0.43% | 3.07% |
| Sector | Consumer Cyclical Stocks | 42.53% | 14.10% | 43.38% |
| Industry | Car Dealership Stocks | 46.87% | 7.74% | 45.39% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Vanguard group | 16.90M | 11.21% | $758.26M |
| Blackrock funding, inc. /de | 11.48M | 7.62% | $515.21M |
| Blackrock | 11.16M | 7.10% | $818.52M |
| State street | 5.54M | 3.68% | $248.65M |
| Norges bank | 5.18M | 3.32% | $423.19M |
| Diamond hill capital management | 4.83M | 3.21% | $216.87M |
| Janus henderson group | 4.74M | 3.05% | $360.51M |
| Primecap management co/ca/ | 4.56M | 3.03% | $204.62M |
| Dimensional fund advisors lp | 3.69M | 2.45% | $165.36M |
| Arrowstreet capital, limited partnership | 3.52M | 2.34% | $158.07M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Rings capital management | 1.07M | 22.62% | $48.19M |
| Silver heights capital management | 926.17K | 18.64% | $41.56M |
| Mount capital | 820.80K | 13.21% | $36.83M |
| Courant investment management | 247.52K | 8.78% | $11.11M |
| Freshford capital management | 500.00K | 6.46% | $36.67M |
| Bluedrive global investors llp | 56.75K | 4.75% | $4.16M |
| Oakview capital management | 20.37K | 4.70% | $1.49M |
| Biglari, sardar | 41.10K | 3.71% | $1.84M |
| Turtle creek asset management | 2.71M | 3.67% | $121.48M |
| Banyan capital management | 177.87K | 3.62% | $7.98M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Norges bank | 5.18M | 0.06% | 5.18M |
| Arrowstreet capital, limited partnership | 3.52M | 0.10% | 1.49M |
| Vulcan value partners | 2.33M | 1.90% | 1.34M |
| Hawk ridge capital management lp | 973.98K | 2.08% | 973.98K |
| Dimensional fund advisors lp | 3.69M | 0.04% | 918.55K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Holocene advisors, lp | - | - | -3.37M |
| Capital research global investors | - | - | -2.78M |
| Principal financial group | 162.24K | 0.00% | -2.41M |
| Diamond hill capital management | 4.83M | 1.03% | -2.13M |
| Timucuan asset management inc/fl | - | - | -1.55M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Norges bank | 5.18M | 0.06% | 5.18M | $423.19M |
| Hawk ridge capital management lp | 973.98K | 2.08% | 973.98K | $43.70M |
| Srs investment management | 310.20K | 0.15% | 310.20K | $13.92M |
| Kirr marbach & co llc /in/ | 137.67K | 1.12% | 137.67K | $6.18M |
| Jain global | 135.61K | 0.03% | 135.61K | $6.08M |
Sold Out
| Holder | Change |
|---|---|
| Parallax volatility advisers | -1.00 |
| Mendota financial group | -1.00 |
| Hhm wealth advisors | -2.00 |
| Financial gravity asset management | -2.00 |
| Halbert hargrove global advisors | -4.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 645 | -16.12% | 145,433,958 | -9.10% | 96 | 0.87% | 289 | -21.25% | 242 | -12.32% |
| Jun 30, 2025 | 750 | -4.58% | 159,808,842 | 2.06% | 105 | 1.03% | 357 | 2.00% | 271 | -6.55% |
| Mar 31, 2025 | 695 | -11.58% | 147,226,010 | -11.11% | 94 | 0.84% | 319 | -8.60% | 250 | -11.35% |
| Dec 31, 2024 | 712 | -9.76% | 156,817,816 | -1.54% | 100 | 0.96% | 314 | -5.14% | 254 | -10.25% |
| Sep 30, 2024 | 782 | 5.68% | 159,149,641 | -6.16% | 102 | 0.88% | 327 | -13.26% | 280 | 29.03% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard US Total Market Shares ETF | 4.92M | 3.21% | -59.41K |
| Vanguard Total Stock Mkt Idx Inv | 4.79M | 3.19% | -101.96K |
| Diamond Hill Large Cap Equity | 4.36M | 2.91% | -154.99K |
| Vanguard Institutional 500 Index Trust | 4.37M | 2.90% | 27.80K |
| Vanguard 500 Index Investor | 3.77M | 2.51% | -552.68K |
| Vanguard Small Cap Index | 3.70M | 2.47% | -22.89K |
| Janus Inst Mid Cap Growth CF | 3.48M | 2.32% | - |
| Janus Henderson Enterprise D | 3.48M | 2.32% | - |
| Diamond Hill Large Cap Inv | 2.38M | 1.59% | -291.31K |
| Invesco S&P 500® Equal Weight ETF | 2.08M | 1.39% | 3.07K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Oct 02, 2025 | ONeil Mark F | - | Buy | $499.81K |
| Oct 02, 2025 | STEENROD MITCHELL D | - | Buy | $91.14K |
| Jul 02, 2025 | Daniels Jon G | EVP, CAF | Sell | $108.79K |
| Apr 24, 2025 | STEENROD MITCHELL D | - | Buy | $85.14K |
| Jan 28, 2025 | Tuite Tyler | SVP & Chief Product Officer | Sell | $411.82K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q4 | 1 | - |
| 2025 Q3 | - | 1 |
| 2025 Q2 | 1 | - |
| 2025 Q1 | - | 5 |
| 2024 Q4 | - | 6 |
KMX Ownership FAQ
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