CarMax, Inc.
US ˙ NYSE ˙ US1431301027

SecurityKMX / CarMax, Inc.
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership8,286 shares
Latest Disclosed Value $ 344,532
Quantbot Technologies LP reports 64.62% decrease in ownership of KMX / CarMax, Inc.

On May 13, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 8,286 shares of CarMax, Inc. (US:KMX) valued at $344,532 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 23,423 shares of CarMax, Inc.. This represents a change in shares of -64.62% during the quarter. The current value of the position is $381,405 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)
2026-05-13 2026-03-31 13F CARMAX COM 143130102 8,286 -15,137 -64.62 345 -61.99 0.0141
2026-02-10 2025-12-31 13F CARMAX COM 143130102 23,423 13,225 129.68 905 98.03 0.0301
2025-11-12 2025-09-30 13F CARMAX COM 143130102 10,198 -14,910 -59.38 458 -72.91 0.0125
2025-08-13 2025-06-30 13F CARMAX COM 143130102 25,108 -23,876 -48.74 1,688 -55.79 0.0433
2025-05-13 2025-03-31 13F CARMAX COM 143130102 48,984 48,984 3,817 0.1215
2025-02-11 2024-12-31 13F CARMAX COM 143130102 0 -42,455 -100.00 0 -100.00
2024-11-13 2024-09-30 13F CARMAX COM 143130102 42,455 28,694 208.52 3,285 225.57 0.1296
2024-08-09 2024-06-30 13F CARMAX COM 143130102 13,761 13,761 1,009 0.0488
2023-08-08 2023-06-30 13F CARMAX COM 143130102 0 -2,535 -100.00 0 -100.00
2023-05-12 2023-03-31 13F CARMAX COM 143130102 2,535 -44,422 -94.60 163 -94.33 0.0115
2023-02-13 2022-12-31 13F CARMAX COM 143130102 46,957 18,024 62.30 2,859 49.69 0.2051
2022-11-07 2022-09-30 13F CARMAX COM 143130102 28,933 28,933 1,910 0.1442
2022-08-09 2022-06-30 13F CARMAX COM 143130102 0 -21,590 -100.00 0 -100.00
2022-05-16 2022-03-31 13F CARMAX COM 143130102 21,590 21,590 2,083 0.1816
2021-08-12 2021-06-30 13F CARMAX COM 143130102 0 -9,186 -100.00 0 -100.00
2021-05-14 2021-03-31 13F CARMAX COM 143130102 9,186 9,186 1,218 0.1159
2021-02-12 2020-12-31 13F CARMAX COM 143130102 0 -11,018 -100.00 0 -100.00
2020-11-16 2020-09-30 13F CARMAX COM 143130102 11,018 11,018 1,012 0.1161
2020-08-13 2020-06-30 13F CARMAX COM 143130102 0 -3,314 -100.00 0 -100.00
2020-05-13 2020-03-31 13F CARMAX COM 143130102 3,314 3,314 178 0.1160
2018-11-13 2018-09-30 13F CARMAX COM 143130102 0 -61,090 -100.00 0 -100.00
2018-08-13 2018-06-30 13F CARMAX COM 143130102 61,090 61,090 4,451 0.3030
2017-08-11 2017-06-30 13F CARMAX COM 143130102 0 -25,300 -100.00 0 -100.00
2017-05-10 2017-03-31 13F CARMAX COM 143130102 25,300 25,300 1,498 0.1571
2017-02-09 2016-12-31 13F CARMAX COM 143130102 0 -19,211 -100.00 0 -100.00
2016-10-31 2016-09-30 13F CARMAX COM 143130102 19,211 19,211 0.00 1,024 0.1138
2016-04-28 2016-03-31 13F CARMAX COM 143130102 0 0 0 0.0000
2015-10-22 2015-09-30 13F CARMAX COM 143130102 0 -17,837 -100.00 0 -100.00
2015-07-27 2015-06-30 13F CARMAX COM 143130102 17,837 17,837 0.00 1,180 0.2115
2015-01-27 2014-12-31 13F CARMAX COM 143130102 0 -29,786 -100.00 0 -100.00
2014-10-15 2014-09-30 13F CARMAX COM 143130102 29,786 29,786 0.00 1,383 0.1902
2014-07-08 2014-06-30 13F CARMAX COM 143130102 0 -29,584 -100.00 0 -100.00
2014-05-21 2014-03-31 13F CARMAX COM 143130102 29,584 29,185 7,314.54 1,384 7,588.89 0.3264
2014-01-31 2013-12-31 13F CARMAX COM 143130102 399 -2,943 -88.06 18 -88.82 0.0088
2013-10-28 2013-09-30 13F CARMAX COM 143130102 3,342 2,536 314.64 161 335.14 0.0998
2013-08-02 2013-06-30 13F CARMAX COM 143130102 806 806 37 0.0194
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.