EXHIBIT A
Joint Filing Agreement
The undersigned hereby agree that the statement on Schedule 13G with
respect to the Common Stock, $0.50 par value of Carmax, Inc., dated as of
February 13, 2003, is, and any amendments thereto (including amendments on
Schedule 13D) signed by each of the undersigned shall be, filed on behalf of
each of us pursuant to and in accordance with the provisions of Rule 13d-1(k)
under the Securities Exchange Act of 1934.
Date: February 13, 2003
MAVERICK CAPITAL, LTD.
By: Maverick Capital Management, LLC
Its General Partner
By: Xxx X. Xxxxxxx III, Manager
By: /s/ Xxxx X. XxXxxxxxxx
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Xxxx X. XxXxxxxxxx
Under Power of Attorney dated
February 13, 2003
MAVERICK CAPITAL MANAGEMENT, LLC
By: Xxx X. Xxxxxxx III, Manager
By: /s/ Xxxx X. XxXxxxxxxx
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Xxxx X. XxXxxxxxxx
Under Power of Attorney dated
February 13, 0000
XXX X. XXXXXXX III
By: /s/ Xxxx X. XxXxxxxxxx
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Xxxx X. XxXxxxxxxx
Under Power of Attorney dated February 13,
2003
