CarMax Inc

KMX

Exchange: NYSE
Industry: Retail-Auto Dealers & Gasoline Stations
SEC CIK: 0001170010

SEC filings (opens in a new tab)

No open-market purchases or sales by CarMax Inc insiders were filed in the last 90 days; 557 institutions reported holding it in 13F filings for Q2 2026, worth $7.80B in total; superinvestors Starboard Value and Markel Group hold it.

13F holders, Q3 2026

Institutional positions in CarMax Inc as of Sep 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders: 4; +1 vs. Q2 2026
Shares held: 3.96K; +625 (+18.7%) vs. Q2 2026
Total value: $218.5K; +$41.6K (+23.5%) vs. Q2 2026
New holders: 1; 2 more added
Sold out: 0; 0 more reduced

554 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting KMX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holders

Value held

Institutions holding KMX and their total value by quarter
Quarter	Holders	Value
Q2 2026	557	$7.80B
Q1 2026	550	$6.36B
Q4 2025	537	$5.83B
Q3 2025	622	$6.54B
Q2 2025	731	$10.7B
Q1 2025	753	$12.6B
Q4 2024	750	$13.1B
Q3 2024	743	$12.6B
Q2 2024	707	$12.4B
Q1 2024	716	$15.0B
Q4 2023	706	$13.0B
Q3 2023	683	$11.9B
Q2 2023	705	$13.9B
Q1 2023	674	$11.0B
Q4 2022	659	$10.4B
Q3 2022	640	$10.9B
Q2 2022	693	$14.7B
Q1 2022	696	$16.0B
Q4 2021	737	$20.3B
Q3 2021	685	$19.9B
Q2 2021	682	$20.3B
Q1 2021	699	$20.4B

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding CarMax Inc; share changes are against Q2 2026.

Institutions holding KMX in Q3 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Davenport & Co LLC	–	–	–	–	Not filed
Thrivent Financial for Lutherans	–	–	–	–	Not filed
Markel Group Inc.SuperinvestorMarkel Group	–	–	–	–	Not filed
Price T Rowe Associates Inc	–	–	–	–	Not filed
Vanguard Asset Management, Ltd	–	–	–	–	Not filed
Prudential Financial Inc	–	–	–	–	Not filed
Hantz Financial Services, Inc.	–	–	–	–	Not filed
Mirae Asset Global ETFs Holdings Ltd.	–	–	–	–	Not filed
Needham Investment Management LLC	–	–	–	–	Not filed
State Board of Administration of Florida Retirement System	–	–	–	–	Not filed
Biglari Capital Corp.	–	–	–	–	Not filed
Great West Life Assurance Co	–	–	–	–	Not filed
New York State Teachers Retirement System	–	–	–	–	Not filed
J. Goldman & Co LP	–	–	–	–	Not filed
Gabelli Funds LLC	–	–	–	–	Not filed
Vanguard Global Advisers, LLC	–	–	–	–	Not filed
State of Wisconsin Investment Board	–	–	–	–	Not filed
Citigroup Inc	–	–	–	–	Not filed
Mercer Global Advisors Inc	–	–	–	–	Not filed
Blair William & Co	–	–	–	–	Not filed
LPL Financial LLC	–	–	–	–	Not filed
Hillman Capital Management, Inc.	–	–	–	–	Not filed
First Manhattan Co	–	–	–	–	Not filed
Voya Investment Management LLC	–	–	–	–	Not filed
True North Advisors, LLC	–	–	–	–	Not filed
Creative Planning	–	–	–	–	Not filed
HITE Hedge Asset Management LLC	–	–	–	–	Not filed
Campbell & CO Investment Adviser LLC	–	–	–	–	Not filed
SG Americas Securities, LLC	–	–	–	–	Not filed
Asset Management Advisors, LLC	–	–	–	–	Not filed
Alpha Omega Wealth Management LLC	–	–	–	–	Not filed
Nisa Investment Advisors, LLC	–	–	–	–	Not filed
VARCOV Co.	–	–	–	–	Not filed
WS Management LLLP	–	–	–	–	Not filed
Susquehanna International Group, LLP	–	–	–	–	Not filed
Tudor Investment Corp Et Al	–	–	–	–	Not filed
Quadrature Capital Ltd	–	–	–	–	Not filed
Algert Global LLC	–	–	–	–	Not filed
Lighthouse Investment Partners, LLC	–	–	–	–	Not filed
London Co of Virginia	–	–	–	–	Not filed
GWM Advisors LLC	–	–	–	–	Not filed
Illinois Municipal Retirement Fund	–	–	–	–	Not filed
Worldquant Millennium Advisors LLC	–	–	–	–	Not filed
Occudo Quantitative Strategies LP	–	–	–	–	Not filed
CI Private Wealth, LLC	–	–	–	–	Not filed
Engineers Gate Manager LP	–	–	–	–	Not filed
State of Alaska, Department of Revenue	–	–	–	–	Not filed
New York State Common Retirement Fund	–	–	–	–	Not filed
Police & Firemen's Retirement System of New Jersey	–	–	–	–	Not filed
Louisiana State Employees Retirement System	–	–	–	–	Not filed
Dark Forest Capital Management LP	–	–	–	–	Not filed
Jones Financial Companies LLLP	–	–	–	–	Not filed
Treasurer of the State of North Carolina	–	–	–	–	Not filed
Convergence Investment Partners, LLC	–	–	–	–	Not filed
Pensionmark Financial Group, LLC	–	–	–	–	Not filed
Havemeyer Place LP	–	–	–	–	Not filed
Stifel Financial Corp	–	–	–	–	Not filed
Zurcher Kantonalbank (Zurich Cantonalbank)	–	–	–	–	Not filed
Alliancebernstein L.P.	–	–	–	–	Not filed
Universal- Beteiligungs- und Servicegesellschaft mbH	–	–	–	–	Not filed
XTX Topco Ltd	–	–	–	–	Not filed
Brevan Howard Capital Management LP	–	–	–	–	Not filed
SRS Capital Advisors, Inc.	–	–	–	–	Not filed
Redmond Asset Management, LLC	–	–	–	–	Not filed
Ruffer LLP	–	–	–	–	Not filed
Handelsbanken Fonder AB	–	–	–	–	Not filed
State of Tennessee, Treasury Department	–	–	–	–	Not filed
State of New Jersey Common Pension Fund D	–	–	–	–	Not filed
Federation des caisses Desjardins du Quebec	–	–	–	–	Not filed
Midway Capital Research & Management	–	–	–	–	Not filed
Polymer Capital Management (US) LLC	–	–	–	–	Not filed
Captrust Financial Advisors	–	–	–	–	Not filed
MML Investors Services, LLC	–	–	–	–	Not filed
Blackhawk Capital Partners LLC.	–	–	–	–	Not filed
Greenline Partners, LLC	–	–	–	–	Not filed
Yousif Capital Management, LLC	–	–	–	–	Not filed
LMR Partners LLP	–	–	–	–	Not filed
Amundi	–	–	–	–	Not filed
Jefferies Financial Group Inc.	–	–	–	–	Not filed
Natixis Advisors, L.P.	–	–	–	–	Not filed
Biglari, Sardar	–	–	–	–	Not filed
Prescott Group Capital Management, L.L.C.	–	–	–	–	Not filed
Amalgamated Bank	–	–	–	–	Not filed
Y-Intercept (Hong Kong) Ltd	–	–	–	–	Not filed
Public Employees Retirement System of Ohio	–	–	–	–	Not filed
Natixis	–	–	–	–	Not filed
Winton Group Ltd	–	–	–	–	Not filed
MMCAP International Inc. SPC	–	–	–	–	Not filed
Covalis Capital LLP	–	–	–	–	Not filed
Cetera Investment Advisers	–	–	–	–	Not filed
Elevated Private Wealth, LLC	–	–	–	–	Not filed
Arizona State Retirement System	–	–	–	–	Not filed
B. Metzler seel. Sohn & Co. AG	–	–	–	–	Not filed
Summit Trail Advisors, LLC	–	–	–	–	Not filed
Teachers Retirement System of the State of Kentucky	–	–	–	–	Not filed
Vanguard Investments Australia, Ltd.	–	–	–	–	Not filed
Advisor Group Holdings, Inc.	–	–	–	–	Not filed
The PNC Financial Services Group, Inc.	–	–	–	–	Not filed
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	–	–	–	–	Not filed
BW Gestao de Investimentos Ltda.	–	–	–	–	Not filed