X0303 4 2010-05-12 0000906553 BOYD GAMING CORP BYD 0001186738 BOYD WILLIAM R 3883 HOWARD HUGHES PARKWAY NINTH FLOOR LAS VEGAS NV 89169 1 1 0 0 Vice President Common Stock 2010-05-12 4 M 0 13724 6.60 A 1982681 I By Trust Common Stock 2010-05-12 4 S 0 8224 13.06 D 1974457 I By Trust Common Stock 2010-05-12 4 S 0 1748 13.07 D 1972709 I By Trust Common Stock 2010-05-12 4 S 0 3752 13.08 D 1968957 I By Trust Common Stock 32128 I By Trust * Common Stock 35290 D Employee Stock Option (Right to Buy) 6.60 2010-05-12 4 M 0 13724 0 D 2018-11-04 Common Stock 13724 27446 D By William R. Boyd Gaming PropertiesTrust, of which reporting person is Trustee, Settlor and Beneficiary. By the Sean William Johnson Education Trust (1997) of which William R. Boyd is Trustee. Options granted under Boyd Gaming Corporation 2002 Flexible Stock Option Plan. Vesting plan calls for options to become exercisable at the rate of 33.333% per year on the first day of each successive 12 month period commencing one year from grant date. * Reporting person disclaims any beneficial interest in these shares. William R. Boyd 2010-05-12