CarMax, Inc.
MX ˙ BMV ˙ US1431301027
SecurityMX:KMX / CarMax, Inc.
InstitutionCIBC Asset Management Inc
Latest Disclosed Ownership13,941 shares
Latest Disclosed Value $ 579,667
CIBC Asset Management Inc reports 4.79% decrease in ownership of KMX / CarMax, Inc.

On May 12, 2026 - CIBC Asset Management Inc filed a 13F-HR form disclosing ownership of 13,941 shares of CarMax, Inc. (MX:KMX) valued at $579,667 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 14,643 shares of CarMax, Inc.. This represents a change in shares of -4.79% during the quarter.

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)
2026-05-12 2026-03-31 13F CARMAX COM 143130102 13,941 -702 -4.79 580 2.48 0.0014
2026-02-10 2025-12-31 13F CARMAX COM 143130102 14,643 -4,975 -25.36 566 -35.80 0.0014
2025-10-31 2025-09-30 13F CARMAX COM 143130102 19,618 -28 -0.14 880 -33.33 0.0025
2025-08-14 2025-06-30 13F CARMAX COM 143130102 19,646 -3,781 -16.14 1,320 -27.67 0.0041
2025-05-13 2025-03-31 13F CARMAX COM 143130102 23,427 -381 -1.60 1,825 -6.22 0.0061
2025-01-31 2024-12-31 13F CARMAX COM 143130102 23,808 968 4.24 1,947 10.13 0.0064
2024-11-06 2024-09-30 13F CARMAX COM 143130102 22,840 1,589 7.48 1,767 13.41 0.0057
2024-08-01 2024-06-30 13F CARMAX COM 143130102 21,251 -1,161 -5.18 1,559 -20.18 0.0055
2024-05-09 2024-03-31 13F CARMAX COM 143130102 22,412 594 2.72 1,952 16.61 0.0068
2024-02-13 2023-12-31 13F CARMAX COM 143130102 21,818 -989 -4.34 1,674 3.78 0.0063
2023-10-30 2023-09-30 13F CARMAX COM 143130102 22,807 -325 -1.40 1,613 -16.68 0.0067
2023-08-14 2023-06-30 13F CARMAX COM 143130102 23,132 -213 -0.91 1,936 29.07 0.0074
2023-05-12 2023-03-31 13F CARMAX COM 143130102 23,345 -746 -3.10 1,501 2.32 0.0060
2023-02-13 2022-12-31 13F CARMAX COM 143130102 24,091 2,509 11.63 1,467 2.88 0.0062
2022-11-03 2022-09-30 13F CARMAX COM 143130102 21,582 1,675 8.41 1,425 -20.88 0.0063
2022-08-09 2022-06-30 13F CARMAX COM 143130102 19,907 4,233 27.01 1,801 19.11 0.0073
2022-05-06 2022-03-31 13F CARMAX COM 143130102 15,674 142 0.91 1,512 -25.26 0.0053
2022-02-08 2021-12-31 13F CARMAX COM 143130102 15,532 658 4.42 2,023 6.31 0.0074
2021-11-09 2021-09-30 13F CARMAX COM 143130102 14,874 470 3.26 1,903 2.31 0.0077
2021-08-16 2021-06-30 13F CARMAX COM 143130102 14,404 52 0.36 1,860 -2.31 0.0075
2021-05-14 2021-03-31 13F CARMAX COM 143130102 14,352 -297 -2.03 1,904 37.57 0.0081
2021-02-03 2020-12-31 13F CARMAX COM 143130102 14,649 -24 -0.16 1,384 2.59 0.0065
2020-11-05 2020-09-30 13F CARMAX COM 143130102 14,673 280 1.95 1,349 4.65 0.0069
2020-07-28 2020-06-30 13F CARMAX COM 143130102 14,393 214 1.51 1,289 68.94 0.0076
2020-04-30 2020-03-31 13F CARMAX COM 143130102 14,179 -1,502 -9.58 763 -44.51 0.0054
2020-02-14 2019-12-31 13F CARMAX COM 143130102 15,681 -614 -3.77 1,375 -4.11 0.0078
2019-10-30 2019-09-30 13F CARMAX COM 143130102 16,295 -601 -3.56 1,434 -2.25 0.0084
2019-08-05 2019-06-30 13F CARMAX COM 143130102 16,896 -510 -2.93 1,467 20.74 0.0088
2019-05-06 2019-03-31 13F CARMAX COM 143130102 17,406 614 3.66 1,215 15.38 0.0075
2019-02-12 2018-12-31 13F CARMAX COM 143130102 16,792 -317 -1.85 1,053 -17.61 0.0077
2018-11-02 2018-09-30 13F CARMAX COM 143130102 17,109 -184 -1.06 1,278 1.43 0.0079
2018-08-09 2018-06-30 13F CARMAX COM 143130102 17,293 158 0.92 1,260 18.76 0.0079
2018-04-30 2018-03-31 13F CARMAX COM 143130102 17,135 -931 -5.15 1,061 -8.46 0.0069
2018-02-02 2017-12-31 13F CARMAX COM 143130102 18,066 -115 -0.63 1,159 -15.89 0.0071
2017-11-06 2017-09-30 13F CARMAX COM 143130102 18,181 -345 -1.86 1,378 17.98 0.0086
2017-07-27 2017-06-30 13F CARMAX COM 143130102 18,526 45 0.24 1,168 6.76 0.0081
2017-05-12 2017-03-31 13F CARMAX COM 143130102 18,481 -240 -1.28 1,094 -9.21 0.0075
2017-02-08 2016-12-31 13F CARMAX COM 143130102 18,721 235 1.27 1,205 22.21 0.0087
2016-10-19 2016-09-30 13F CARMAX COM 143130102 18,486 -1,853 -9.11 986 -1.10 0.0073
2016-08-02 2016-06-30 13F CARMAX COM 143130102 20,339 370 1.85 997 -2.25 0.0075
2016-05-09 2016-03-31 13F CARMAX COM 143130102 19,969 331 1.69 1,020 -3.77 0.0076
2016-02-02 2015-12-31 13F CARMAX COM 143130102 19,638 -1,940 -8.99 1,060 -17.19 0.0087
2015-11-03 2015-09-30 13F CARMAX COM 143130102 21,578 170 0.79 1,280 -9.67 0.0102
2015-08-06 2015-06-30 13F CARMAX COM 143130102 21,408 1,125 5.55 1,417 1.21 0.0099
2015-05-08 2015-03-31 13F CARMAX COM 143130102 20,283 -22 -0.11 1,400 3.55 0.0099
2015-02-10 2014-12-31 13F CARMAX COM 143130102 20,305 -7,183 -26.13 1,352 5.87 0.0090
2014-11-05 2014-09-30 13F CARMAX COM 143130102 27,488 238 0.87 1,277 -9.88 0.0076
2014-08-01 2014-06-30 13F CARMAX COM 143130102 27,250 -967 -3.43 1,417 7.27 0.0080
2014-05-09 2014-03-31 13F CARMAX COM 143130102 28,217 1,057 3.89 1,321 3.45 0.0078
2014-02-04 2013-12-31 13F CARMAX COM 143130102 27,160 -497 -1.80 1,277 -4.77 0.0078
2013-10-29 2013-09-30 13F CARMAX COM 143130102 27,657 -61 -0.22 1,341 4.85 0.0086
2013-10-02 2013-06-30 13F/A-1 CARMAX COM 143130102 27,718 27,718 1,279 0.0087
2013-08-09 2013-06-30 13F CARMAX COM 143130102 27,718 1,279 0.0087
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.