CarMax, Inc.
US ˙ NYSE ˙ US1431301027

SecurityKMX / CarMax, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership1,089,126 shares
Latest Disclosed Value $ 45,285,860
Northern Trust Corp reports 0.36% increase in ownership of KMX / CarMax, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 1,089,126 shares of CarMax, Inc. (US:KMX) valued at $45,285,859 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,085,167 shares of CarMax, Inc.. This represents a change in shares of 0.36% during the quarter. The current value of the position is $51,352,291 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.

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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)
2026-05-14 2026-03-31 13F CARMAX COM 143130102 1,089,126 3,959 0.36 45,286 8.00 0.0012
2026-02-17 2025-12-31 13F CARMAX COM 143130102 1,085,167 -205,081 -15.89 41,931 -27.57 0.0053
2025-11-14 2025-09-30 13F CARMAX COM 143130102 1,290,248 -58,388 -4.33 57,893 -36.13 0.0074
2025-08-13 2025-06-30 13F CARMAX COM 143130102 1,348,636 -185,263 -12.08 90,642 -24.16 0.0125
2025-05-13 2025-03-31 13F CARMAX COM 143130102 1,533,899 1,062 0.07 119,521 -4.63 0.0177
2025-02-14 2024-12-31 13F CARMAX COM 143130102 1,532,837 178,234 13.16 125,325 19.56 0.0177
2024-11-13 2024-09-30 13F CARMAX COM 143130102 1,354,603 -119,044 -8.08 104,819 -3.01 0.0172
2024-08-14 2024-06-30 13F CARMAX COM 143130102 1,473,647 49,086 3.45 108,077 -12.91 0.0182
2024-05-14 2024-03-31 13F CARMAX COM 143130102 1,424,561 -41,121 -2.81 124,094 10.33 0.0214
2024-02-13 2023-12-31 13F CARMAX COM 143130102 1,465,682 -105,311 -6.70 112,476 1.22 0.0204
2023-11-13 2023-09-30 13F CARMAX COM 143130102 1,570,993 48,879 3.21 111,116 -12.78 0.0215
2023-08-11 2023-06-30 13F CARMAX COM 143130102 1,522,114 -84,010 -5.23 127,401 23.40 0.0245
2023-05-15 2023-03-31 13F CARMAX COM 143130102 1,606,124 -8,698 -0.54 103,242 5.00 0.0205
2023-02-13 2022-12-31 13F CARMAX COM 143130102 1,614,822 -6,595 -0.41 98,327 -8.15 0.0206
2022-11-14 2022-09-30 13F CARMAX COM 143130102 1,621,417 -27,909 -1.69 107,046 -28.27 0.0245
2022-08-12 2022-06-30 13F CARMAX COM 143130102 1,649,326 -23,734 -1.42 149,231 -7.55 0.0320
2022-05-13 2022-03-31 13F CARMAX COM 143130102 1,673,060 -16,887 -1.00 161,417 -26.66 0.0284
2022-02-08 2021-12-31 13F CARMAX COM 143130102 1,689,947 -13,060 -0.77 220,082 0.99 0.0361
2021-11-15 2021-09-30 13F CARMAX COM 143130102 1,703,007 -12,995 -0.76 217,918 -1.67 0.0386
2021-08-13 2021-06-30 13F CARMAX COM 143130102 1,716,002 -21,380 -1.23 221,622 -3.84 0.0390
2021-05-12 2021-03-31 13F CARMAX COM 143130102 1,737,382 -28,005 -1.59 230,481 38.21 0.0429
2021-02-11 2020-12-31 13F CARMAX COM 143130102 1,765,387 -49,431 -2.72 166,759 -0.02 0.0325
2020-11-16 2020-09-30 13F CARMAX COM 143130102 1,814,818 4,314 0.24 166,800 2.88 0.0366
2020-08-14 2020-06-30 13F CARMAX COM 143130102 1,810,504 -20,413 -1.11 162,130 64.50 0.0384
2020-05-14 2020-03-31 13F CARMAX COM 143130102 1,830,917 -11,235 -0.61 98,558 -38.97 0.0283
2020-02-14 2019-12-31 13F CARMAX COM 143130102 1,842,152 -41,254 -2.19 161,502 -2.56 0.0361
2019-11-13 2019-09-30 13F CARMAX COM 143130102 1,883,406 -52,813 -2.73 165,740 -1.42 0.0397
2019-08-13 2019-06-30 13F CARMAX COM 143130102 1,936,219 -13,685 -0.70 168,122 23.52 0.0399
2019-05-13 2019-03-31 13F CARMAX COM 143130102 1,949,904 -12,937 -0.66 136,104 10.54 0.0336
2019-02-12 2018-12-31 13F CARMAX COM 143130102 1,962,841 53,495 2.80 123,129 -13.64 0.0345
2018-11-14 2018-09-30 13F CARMAX COM 143130102 1,909,346 -6,789 -0.35 142,571 2.11 0.0349
2018-09-18 2018-06-30 13F/A-1 CARMAX COM 143130102 1,916,135 -54,230 -2.75 139,629 14.41 0.0355
2018-08-14 2018-06-30 13F CARMAX COM 143130102 1,929,038 -41,327 140,569
2018-05-09 2018-03-31 13F CARMAX COM 143130102 1,970,365 -63,002 -3.10 122,044 -6.41 0.0318
2018-02-14 2017-12-31 13F CARMAX COM 143130102 2,033,367 -49,403 -2.37 130,400 -17.41 0.0330
2017-11-13 2017-09-30 13F CARMAX COM 143130102 2,082,770 68,641 3.41 157,894 24.32 0.0412
2017-08-11 2017-06-30 13F CARMAX COM 143130102 2,014,129 -47,671 -2.31 127,011 4.02 0.0355
2017-05-12 2017-03-31 13F CARMAX COM 143130102 2,061,800 -7,275 -0.35 122,099 -8.35 0.0352
2017-02-13 2016-12-31 13F CARMAX COM 143130102 2,069,075 -411,126 -16.58 133,228 0.69 0.0409
2016-11-09 2016-09-30 13F CARMAX COM 143130102 2,480,201 -23,367 -0.93 132,319 7.80 0.0412
2016-08-12 2016-06-30 13F CARMAX COM 143130102 2,503,568 -17,791 -0.71 122,750 -7.40 0.0398
2016-08-19 2016-03-31 13F/A-1 CARMAX COM 143130102 2,521,359 -74,756 -2.88 132,557 -5.39 0.0440
2016-05-13 2016-03-31 13F Carmax COMM 143130102 2,521,349 128,841
2016-02-12 2015-12-31 13F Carmax COMM 143130102 2,596,115 -101,111 -3.75 140,112 -12.43 0.0464
2015-11-12 2015-09-30 13F Carmax COMM 143130102 2,697,226 310,214 13.00 159,999 1.24 0.0534
2015-08-13 2015-06-30 13F CARMAX COM 143130102 2,387,012 -451,952 -15.92 158,044 -19.33 0.1071
2015-08-13 2015-06-30 13F Carmax COMM 014313010 367,219 -2,471,745 24,314 0.0165
2015-05-14 2015-03-31 13F Carmax COMM 143130102 2,838,964 -104,920 -3.56 195,917 -0.04 0.0589
2015-02-12 2014-12-31 13F Carmax COM 143130102 2,943,884 -34,337 -1.15 196,004 41.68 0.0592
2014-11-13 2014-09-30 13F Carmax COMM 143130102 2,978,221 214,778 7.77 138,339 -3.75 0.0434
2014-08-14 2014-06-30 13F CARMAX com 143130102 2,763,443 -301,569 -9.84 143,727 0.20 0.0448
2014-05-14 2014-03-31 13F CARMAX COMM 143130102 3,065,012 190,258 6.62 143,443 6.12 0.0451
2014-02-21 2013-12-31 13F/A-1 CARMAX COM 143130102 2,874,754 -22,753 -0.79 135,171 -3.75 0.0433
2014-02-12 2013-12-31 13F CARMAX COM 143130102 2,874,754 135,171
2013-11-13 2013-09-30 13F CARMAX COM 143130102 2,897,507 -111,280 -3.70 140,442 1.12 0.0495
2013-08-09 2013-06-30 13F CARMAX COM 143130102 3,008,787 3,008,787 138,885 0.0503
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.