CarMax Inc
Ownership
Ownership Structure
Who owns CarMax Inc (KMX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.4% of the shares are freely tradable; institutional investors hold 111.9%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 12.16 | 17,257,461 | -3.3 | 03/31/2026 |
| AQR Capital Management LLC | 7.09 | 10,060,502 | +26.9 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 5.13 | 7,276,272 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.50 | 6,386,764 | +0.0 | 03/31/2026 |
| Starboard Value LP | 4.37 | 6,201,362 | +0.0 | 03/31/2026 |
| SRS Investment Management, LLC | 4.17 | 5,922,862 | +4.8 | 06/30/2026 |
| Two Sigma Investments LLC | 4.11 | 5,831,970 | +9.1 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 3.51 | 4,974,772 | +16.4 | 06/30/2026 |
| State Street Corp | 3.44 | 4,885,060 | -3.3 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.09 | 8,645,922 | +0.0 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.