CarMax, Inc.
US ˙ NYSE ˙ US1431301027

SecurityKMX / CarMax, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership4,275,663 shares
Latest Disclosed Value $ 177,766,604
Dimensional Fund Advisors Lp reports 7.27% increase in ownership of KMX / CarMax, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 4,275,663 shares of CarMax, Inc. (US:KMX) valued at $177,782,068 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 3,985,895 shares of CarMax, Inc.. This represents a change in shares of 7.27% during the quarter. The current value of the position is $196,808,768 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F CARMAX COM 143130102 4,275,663 289,768 7.27 177,767 15.42 0.0080
2026-02-12 2025-12-31 13F CARMAX COM 143130102 3,985,895 300,694 8.16 154,023 -6.85 0.0323
2025-11-12 2025-09-30 13F CARMAX COM 143130102 3,685,201 918,553 33.20 165,358 -11.07 0.0355
2025-08-12 2025-06-30 13F CARMAX COM 143130102 2,766,648 966,373 53.68 185,939 32.58 0.0430
2025-05-13 2025-03-31 13F CARMAX COM 143130102 1,800,275 -122,097 -6.35 140,247 -10.77 0.0349
2025-02-13 2024-12-31 13F CARMAX COM 143130102 1,922,372 -83,908 -4.18 157,180 1.25 0.0377
2024-11-07 2024-09-30 13F CARMAX COM 143130102 2,006,280 -1,146 -0.06 155,245 5.44 0.0377
2024-08-09 2024-06-30 13F CARMAX COM 143130102 2,007,426 51,397 2.63 147,230 -13.59 0.0385
2024-05-10 2024-03-31 13F CARMAX COM 143130102 1,956,029 25,423 1.32 170,390 15.00 0.0461
2024-02-07 2023-12-31 13F CARMAX COM 143130102 1,930,606 164,024 9.28 148,168 18.60 0.0433
2023-11-09 2023-09-30 13F CARMAX COM 143130102 1,766,582 -21,667 -1.21 124,934 -16.54 0.0410
2023-08-09 2023-06-30 13F CARMAX COM 143130102 1,788,249 77 0.00 149,692 30.28 0.0477
2023-05-12 2023-03-31 13F CARMAX COM 143130102 1,788,172 -14,400 -0.80 114,899 105,311.93 0.0387
2023-02-09 2022-12-31 13F CARMAX COM 143130102 1,802,572 179,061 11.03 110 -99.90 0.0324
2022-11-10 2022-09-30 13F CARMAX COM 143130102 1,623,511 -44,401 -2.66 107,176 -28.99 0.0411
2022-08-12 2022-06-30 13F CARMAX COM 143130102 1,667,912 5,769 0.35 150,940 -5.92 0.0541
2022-05-13 2022-03-31 13F CARMAX COM 143130102 1,662,143 41,832 2.58 160,444 -23.95 0.0494
2022-02-09 2021-12-31 13F CARMAX COM 143130102 1,620,311 -3,480 -0.21 210,975 1.39 0.0638
2021-11-12 2021-09-30 13F CARMAX COM 143130102 1,623,791 7,021 0.43 208,078 -0.36 0.0670
2021-08-12 2021-06-30 13F CARMAX COM 143130102 1,616,770 60,428 3.88 208,824 1.12 0.0661
2021-05-14 2021-03-31 13F CARMAX COM 143130102 1,556,342 28,069 1.84 206,516 43.05 0.0683
2021-03-08 2020-12-31 13F/A-2 CARMAX COM 143130102 1,528,273 15,856 1.05 144,366 3.85 0.0521
2021-02-11 2020-12-31 13F CARMAX COM 143130102 1,528,273 15,856 144,366 52,137.3257
2020-11-12 2020-09-30 13F CARMAX COM 143130102 1,512,417 -27,942 -1.81 139,018 0.79 0.0590
2020-08-13 2020-06-30 13F CARMAX COM 143130102 1,540,359 10,369 0.68 137,925 67.41 0.0606
2020-05-14 2020-03-31 13F CARMAX COM 143130102 1,529,990 -25,507 -1.64 82,386 -39.59 0.0429
2020-02-14 2019-12-31 13F CARMAX COM 143130102 1,555,497 -39,961 -2.50 136,367 -2.87 0.0497
2019-11-12 2019-09-30 13F CARMAX COM 143130102 1,595,458 -3,846 -0.24 140,395 1.10 0.0546
2019-08-13 2019-06-30 13F CARMAX COM 143130102 1,599,304 -13,811 -0.86 138,872 23.44 0.0539
2019-08-12 2019-03-31 13F/A-2 CARMAX COM 143130102 1,613,115 108,224 7.19 112,500 19.17 0.0448
2019-05-10 2019-03-31 13F CARMAX COM 143130102 1,613,115 108,224 112,500
2019-02-26 2018-12-31 13F/A-1 CARMAX COM 143130102 1,504,891 258,689 20.76 94,404 1.46 0.0428
2019-02-13 2018-12-31 13F CARMAX COM 143130102 1,504,891 258,689 94,404
2018-11-13 2018-09-30 13F CARMAX COM 143130102 1,246,202 -29,452 -2.31 93,046 0.09 0.0354
2018-08-10 2018-06-30 13F CARMAX COM 143130102 1,275,654 -6,968 -0.54 92,962 17.01 0.0371
2018-05-11 2018-03-31 13F CARMAX COM 143130102 1,282,622 86,519 7.23 79,446 3.56 0.0331
2018-02-12 2017-12-31 13F CARMAX COM 143130102 1,196,103 12,023 1.02 76,712 -14.54 0.0318
2017-11-13 2017-09-30 13F CARMAX COM 143130102 1,184,080 3,892 0.33 89,766 20.62 0.0392
2017-08-11 2017-06-30 13F CARMAX COM 143130102 1,180,188 20,047 1.73 74,419 8.31 0.0344
2017-05-12 2017-03-31 13F CARMAX COM 143130102 1,160,141 50,441 4.55 68,707 -3.84 0.0328
2017-02-09 2016-12-31 13F CARMAX COM 143130102 1,109,700 64,624 6.18 71,452 28.17 0.0357
2016-11-10 2016-09-30 13F CARMAX COM 143130102 1,045,076 80,269 8.32 55,750 17.86 0.0301
2016-08-09 2016-06-30 13F CARMAX COM 143130102 964,807 24,694 2.63 47,301 -1.53 0.0272
2016-05-13 2016-03-31 13F CARMAX COM 143130102 940,113 29,328 3.22 48,038 -2.28 0.0288
2016-02-10 2015-12-31 13F CARMAX COM 143130102 910,785 140,672 18.27 49,157 7.61 0.0306
2015-11-13 2015-09-30 13F CARMAX COM 143130102 770,113 76,664 11.06 45,680 -0.51 0.0300
2015-08-14 2015-06-30 13F CARMAX COM 143130102 693,449 21,383 3.18 45,916 -0.99 0.0281
2015-05-14 2015-03-31 13F CARMAX COM 143130102 672,066 20,458 3.14 46,377 6.89 0.0293
2015-02-06 2014-12-31 13F CARMAX COM 143130102 651,608 76,124 13.23 43,388 62.29 0.0285
2014-11-13 2014-09-30 13F CARMAX COM 143130102 575,484 126,045 28.04 26,735 14.38 0.0189
2014-08-08 2014-06-30 13F CARMAX COM 143130102 449,439 -1,949 -0.43 23,374 10.67 0.0162
2014-05-14 2014-03-31 13F CARMAX COM 143130102 451,388 1,085 0.24 21,120 -0.26 0.0158
2014-02-12 2013-12-31 13F CARMAX COM 143130102 450,303 47,571 11.81 21,174 8.46 0.0165
2013-11-13 2013-09-30 13F CARMAX COM 143130102 402,732 12,419 3.18 19,522 8.34 0.0169
2013-08-15 2013-06-30 13F CARMAX COM 143130102 390,313 390,313 18,020 0.0170
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.