Who owns CarMax (KMX)
Which tracked institutional funds hold KMX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See KMX company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
177 tracked funds added or opened KMX while 104 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
KMX’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes KMX more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in KMX divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 518 tracked filers holding KMX, 216 increased or opened the position and 350 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases. A multi-insider buy cluster also fired inside the quarter.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in KMX between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 29
- Jupiter Topco LLC$246M
- HAWK RIDGE CAPITAL MANAGEMENT LP$150M
- Slate Path Capital LP$97M
- Alyeska Investment Group, L.P.$51M
- BALYASNY ASSET MANAGEMENT L.P.$22M
- Squarepoint Ops LLC$16M
Full exits 44
- JANUS HENDERSON GROUP PLC$190M
- EUBEL BRADY & SUTTMAN ASSET MANAGEMENT INC$19M
- MARSHALL WACE, LLP$13M
- CWM, LLC$11M
- BESSEMER GROUP INC$6M
- HANTZ FINANCIAL SERVICES, INC.$6M
Largest adds
- BlackRock, Inc.$263M
- AMERICAN CENTURY COMPANIES INC$114M
- CANADA PENSION PLAN INVESTMENT BOARD$104M
- TWO SIGMA INVESTMENTS, LP$86M
- DIMENSIONAL FUND ADVISORS LP$85M
- VANGUARD PORTFOLIO MANAGEMENT LLC$83M
Largest trims
- NORGES BANK$402M
- Starboard Value LP$88M
- Apollo Management Holdings, L.P.$67M
- AQR CAPITAL MANAGEMENT LLC$63M
- Vulcan Value Partners, LLC$43M
- Gotham Asset Management, LLC$29M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 17,092,089 | $904M | 12.4% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 7,286,475 | $385M | 5.3% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 6,622,794 | $349M | 4.8% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 6,420,191 | $340M | 4.6% | 2026-Q2 |
| SRS Investment Management, LLC added | 5,922,862 | $313M | 4.3% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 5,831,970 | $308M | 4.2% | 2026-Q2 |
| STATE STREET CORP added | 5,156,276 | $273M | 3.7% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 4,974,772 | $263M | 3.6% | 2026-Q2 |
| Jupiter Topco LLC new | 4,645,036 | $246M | 3.4% | 2026-Q2 |
| PRIMECAP MANAGEMENT CO/CA/ added | 4,359,016 | $231M | 3.2% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 3,280,103 | $173M | 2.4% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 3,250,267 | $172M | 2.4% | 2026-Q2 |
| Baird Financial Group, Inc. added | 3,207,134 | $170M | 2.3% | 2026-Q2 |
| Starboard Value LP trimmed | 3,206,438 | $170M | 2.3% | 2026-Q2 |
| First Pacific Advisors, LP added | 3,008,564 | $159M | 2.2% | 2026-Q2 |
| HAWK RIDGE CAPITAL MANAGEMENT LP added | 2,834,458 | $150M | 2.1% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,564,007 | $136M | 1.9% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 2,420,139 | $128M | 1.8% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 2,183,121 | $115M | 1.6% | 2026-Q2 |
| MORGAN STANLEY trimmed | 2,176,424 | $115M | 1.6% | 2026-Q2 |
| Apollo Management Holdings, L.P. trimmed | 1,986,285 | $105M | 1.4% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 1,898,337 | $100M | 1.4% | 2026-Q2 |
| Slate Path Capital LP new | 1,827,700 | $97M | 1.3% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 1,634,480 | $86M | 1.2% | 2026-Q2 |
| Diamond Hill Capital Management, LLC (Investment Advisor) trimmed | 1,628,905 | $86M | 1.2% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,510,820 | $80M | 1.1% | 2026-Q2 |
| Invesco Ltd. added | 1,133,035 | $60M | 0.8% | 2026-Q2 |
| NORTHERN TRUST CORP added | 1,129,189 | $60M | 0.8% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 1,045,011 | $55M | 0.8% | 2026-Q2 |
| Focus Partners Wealth trimmed | 1,016,596 | $54M | 0.7% | 2026-Q2 |
| Woodline Partners LP added | 1,005,951 | $53M | 0.7% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 969,082 | $51M | 0.7% | 2026-Q2 |
| Alyeska Investment Group, L.P. new | 957,980 | $51M | 0.7% | 2026-Q2 |
| Rings Capital Management LLC | 949,000 | $50M | 0.7% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 932,805 | $49M | 0.7% | 2026-Q2 |
| Silver Heights Capital Management Inc trimmed | 912,993 | $48M | 0.7% | 2026-Q2 |
| Vulcan Value Partners, LLC trimmed | 912,638 | $48M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 899,029 | $48M | 0.7% | 2026-Q2 |
| UBS Group AG trimmed | 866,663 | $46M | 0.6% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 864,362 | $46M | 0.6% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 807,108 | $43M | 0.6% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 684,372 | $36M | 0.5% | 2026-Q2 |
| NORGES BANK trimmed | 665,737 | $35M | 0.5% | 2026-Q2 |
| Holocene Advisors, LP trimmed | 664,084 | $35M | 0.5% | 2026-Q2 |
| Framtiden Holdings Management Co LLC added | 610,000 | $34M | 0.5% | 2026-Q2 |
| Mount Capital Ltd added | 584,800 | $31M | 0.4% | 2026-Q2 |
| Nuveen, LLC added | 550,461 | $29M | 0.4% | 2026-Q2 |
| Public Sector Pension Investment Board trimmed | 487,570 | $26M | 0.4% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 468,737 | $25M | 0.3% | 2026-Q2 |
| Nexus Investment Management ULC trimmed | 459,315 | $24M | 0.3% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 423,953 | $22M | 0.3% | 2026-Q2 |
| Kiltearn Partners LLP added | 406,479 | $21M | 0.3% | 2026-Q2 |
| Welch & Forbes LLC trimmed | 387,190 | $20M | 0.3% | 2026-Q2 |
| Endure Capital Management, LLC added | 383,260 | $20M | 0.3% | 2026-Q2 |
| Legal & General Group Plc trimmed | 354,495 | $19M | 0.3% | 2026-Q2 |
| ARIEL INVESTMENTS, LLC trimmed | 346,538 | $18M | 0.3% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 340,362 | $18M | 0.2% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 329,217 | $17M | 0.2% | 2026-Q2 |
| GAGNON SECURITIES LLC added | 325,410 | $17M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 319,096 | $17M | 0.2% | 2026-Q2 |
| IEQ CAPITAL, LLC trimmed | 310,642 | $16M | 0.2% | 2026-Q2 |
| CLIFFORD SWAN INVESTMENT COUNSEL LLC trimmed | 308,133 | $16M | 0.2% | 2026-Q2 |
| Squarepoint Ops LLC added | 305,422 | $16M | 0.2% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 290,177 | $16M | 0.2% | 2026-Q2 |
| Broad Run Investment Management, LLC trimmed | 283,226 | $15M | 0.2% | 2026-Q2 |
| Swiss National Bank trimmed | 270,300 | $14M | 0.2% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 270,299 | $14M | 0.2% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 269,947 | $14M | 0.2% | 2026-Q2 |
| Mariner, LLC trimmed | 259,057 | $14M | 0.2% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 244,903 | $13M | 0.2% | 2026-Q2 |
| CAPITAL FUND MANAGEMENT S.A. added | 236,073 | $12M | 0.2% | 2026-Q2 |
| Cerity Partners LLC trimmed | 232,914 | $12M | 0.2% | 2026-Q2 |
| Fideuram Asset Management (Ireland) dac added | 222,013 | $9M | 0.1% | 2026-Q2 |
| Gotham Asset Management, LLC trimmed | 218,093 | $12M | 0.2% | 2026-Q2 |
| FMR LLC trimmed | 202,981 | $11M | 0.1% | 2026-Q2 |
| QVT Financial LP trimmed | 200,000 | $11M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 197,774 | $10M | 0.1% | 2026-Q2 |
| FIRST TRUST ADVISORS LP trimmed | 194,004 | $10M | 0.1% | 2026-Q2 |
| FULLER & THALER ASSET MANAGEMENT, INC. added | 190,979 | $10M | 0.1% | 2026-Q2 |
| ASSETMARK, INC added | 189,490 | $10M | 0.1% | 2026-Q2 |
| Man Group plc trimmed | 182,434 | $10M | 0.1% | 2026-Q2 |
| California Public Employees Retirement System trimmed | 181,159 | $10M | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP trimmed | 176,995 | $9M | 0.1% | 2026-Q2 |
| Kinsale Capital Group, Inc. added | 174,637 | $9M | 0.1% | 2026-Q2 |
| OPPENHEIMER & CO INC trimmed | 174,464 | $9M | 0.1% | 2026-Q2 |
| BML Capital Management, LLC added | 172,500 | $9M | 0.1% | 2026-Q2 |
| BANYAN CAPITAL MANAGEMENT, INC. trimmed | 169,214 | $9M | 0.1% | 2026-Q2 |
| ExodusPoint Capital Management, LP added | 159,067 | $8M | 0.1% | 2026-Q2 |
| BARCLAYS PLC trimmed | 156,423 | $8M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 156,042 | $8M | 0.1% | 2026-Q2 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC trimmed | 154,702 | $8M | 0.1% | 2026-Q2 |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. trimmed | 154,677 | $8M | 0.1% | 2026-Q2 |
| SEI INVESTMENTS CO added | 150,694 | $8M | 0.1% | 2026-Q2 |
| Trexquant Investment LP trimmed | 147,378 | $8M | 0.1% | 2026-Q2 |
| DAVENPORT & Co LLC trimmed | 141,634 | $7M | 0.1% | 2026-Q2 |
| Markel Group Inc. | 136,500 | $7M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 135,000 | $7M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 134,946 | $7M | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 134,064 | $7M | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 130,174 | $7M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.