CarMax (KMX) Stock Buybacks: 37.5% of Shares Retired Since 2012

Name: CarMax (KMX) shares outstanding since 2003, split adjusted
Creator: Buyback Radar
License: https://creativecommons.org/licenses/by/4.0/

Shares outstanding, 2003 to todaysplit adjusted, from SEC filings

2003, 206,518,9402026-09-28, 141,942,807

A share bought in 2003

1.5× more of CarMax today, without buying another share. It was one of 206,518,940 shares then. It is one of 141,942,807 now.

Every filing we read24 fiscal years, split adjusted

Fiscal year	Date	Shares outstanding	Filing
2003	2003-04-30	206,518,940	10-K	cover page
2004	2004-03-31	207,673,628	10-K	cover page
2005	2005-03-31	208,743,050	10-K	cover page
2006	2006-03-31	210,103,278	10-K	cover page
2007	2007-03-31	216,045,438	10-K	cover page
2008	2008-03-31	218,620,482	10-K	cover page
2009	2009-03-31	220,391,906	10-K	cover page
2010	2010-02-28	223,065,542	10-K
2011	2011-03-31	225,897,547	10-K
2012	2012-03-31	227,160,637	10-K
2013	2013-03-31	224,488,682	10-K
2014	2014-03-31	220,805,697	10-K/A
2015	2015-03-31	207,930,356	10-K
2016	2016-03-31	193,829,168	10-K
2017	2017-03-31	185,701,670	10-K
2018	2018-03-31	178,676,159	10-K
2019	2019-03-31	166,187,221	10-K
2020	2020-03-31	162,574,714	10-K
2021	2021-03-31	163,180,172	10-K
2022	2022-03-31	160,537,858	10-K
2023	2023-04-11	158,091,336	10-K
2024	2024-04-11	157,387,560	10-K
2025	2025-04-09	152,684,225	10-K
2026	2026-04-13	141,820,715	10-K

Source: all 10-K filings of CarMax on EDGAR. Download this series as CSV. Licence CC BY 4.0, credit Buyback Radar.

CarMax buybacks, answered

Is CarMax buying back its stock?

Yes. CarMax has 3.3% fewer shares outstanding than twelve months ago, 141,942,807 as of September 28, 2026. Over five years the share count is down 12.4%.

How many shares has CarMax bought back?

Net of every new share it issued, CarMax has 85.2 million fewer shares than at its 2012 peak. That is 37.5% of the company.

How many shares does CarMax have outstanding?

141,942,807 shares, as of September 28, 2026, from the cover page of its latest 10-Q. At the 2012 peak it had 227,160,637.

What do CarMax's buybacks mean for a shareholder?

Each share is a bigger slice of the company. Someone who held CarMax stock in 2012 owns 1.6 times as much of the business today without buying another share. Whether that was a good use of cash depends on the price paid.

How does CarMax compare with other cannibal stocks?

CarMax ranks No. 131 of 251 companies on Buyback Radar by share of the company retired since its peak. Close to it on the list: Nrg Energy (37.8%), Valvoline (37.8%), Jefferies (37.4%), Copart (37.3%).

Every answer is computed from CarMax's own SEC filings and rebuilt every Monday. Latest count: 10-Q on EDGAR.

Insider buying, last 12 months

Shinder MarcellaDirector2026-06-25, 574 shares at $52.01 $30K total

Chawla SonaDirector2026-06-25, 2,000 shares at $53.39 $107K total

ONeil Mark FDirector2026-06-24, 9,600 shares at $52.36 $503K total

Bensen Peter JDirector2026-06-22, 2,500 shares at $52.20 $130K total

Barr KeithDirector; President and CEO2026-06-22, 9,400 shares at $53.01 $498K total

The story

The numbers say what happened. The story says whether it can continue. We cover companies like CarMax in depth on Cannibal Stocks.

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