Is KMX a good stock to own? Find out who bought CarMax, who sold CarMax (KMX) stock, and who holds a large position in CarMax.

• T. Rowe Price Associates owns 26.06M shares worth $1.09B
• Vanguard owns 14.22M shares worth $592.99M
• PRIMECAP Management Company owns 13.23M shares worth $551.85M
• Wells Fargo & Company owns 11.03M shares worth $286.26M
• DAVIS SELECTED ADVISERS owns 9.60M shares worth $400.49M
• STATE STREET CORPORATION owns 8.80M shares worth $367.07M
• Dodge & Cox owns 8.25M shares worth $309.69M
• Harris Associates L.P owns 6.57M shares worth $273.85M
• OppenheimerFunds owns 6.39M shares worth $180.93M
• William Blair $ Company owns 5.69M shares worth $173.43M
• Markel Corporation owns 5.12M shares worth $213.54M
• Wellington Management Company owns 4.59M shares worth $191.46M
• Waddell & Reed Financial owns 3.62M shares worth $151.00M

• JAT Capital Management sold on Sept. 30, 2011
• FRIESS ASSOCIATES sold on March 31, 2011
• Berkshire Hathaway sold on June 30, 2010
• Akre Capital Management sold on Dec. 31, 2008
• Lone Pine Capital sold on Sept. 30, 2007
• Maverick Capital sold on Dec. 31, 2005

• Chubb Corporation (CB)
• Hasbro (HAS)
• Crown Holdings (CCK)
• Petroleo Brasileiro SA (PBR)
• Petroleo Brasileiro SA (PBR.A)
• Microsoft Corporation (MSFT)
• Corning Incorporated (GLW)
• MasterCard Incorporated (MA)
• Progressive Corporation (PGR)
• Charles Schwab Corporation (SCHW)
• American Express Company (AXP)
• Berkshire Hathaway (BRK.B)
• Cabot Oil & Gas Corporation (COG)
• Caterpillar (CAT)
• Costco Wholesale Corporation (COST)
• Expeditors International of Washington (EXPD)
• FedEx Corporation (FDX)
• Monsanto Company (MON)
• Range Resources (RRC)
• Republic Services (RSG)
• Colfax Corporation (CFX)