X0306 4/A 2021-05-06 2021-05-10 0000906553 BOYD GAMING CORP BYD 0001033638 WHETSELL PAUL W 3883 HOWARD HUGHES PARKWAY NINTH FLOOR LAS VEGAS NV 89169 1 0 0 0 Common Stock 2021-05-06 4 A 0 2654 0 A 10154 D The Restricted Stock Units ("RSUs") were granted to the Reporting Person for no consideration under Issuer's 2020 Stock Incentive Plan. The RSUs fully vested, and one share of Issuer common stock was issued for each RSU, on the date of grant. Scott Lesmes, as Attorney-in-Fact 2021-05-21