X0508 4 2024-01-02 0000906553 BOYD GAMING CORP BYD 0001664330 Thompson Stephen S. 6465 S. RAINBOW BLVD. LAS VEGAS NV 89118 0 1 0 0 Chief Administrative Officer 0 Career Restricted Stock Units 2024-01-02 4 A 0 1716 0 A Common Stock 1716 1716 D The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2020 Stock Incentive Plan. Each Career Restricted Stock Unit represents a contingent right to receive one share of Issuer common stock. The Career Restricted Stock Units generally will be paid out in shares of lssuer common stock at the time of retirement at a level determined by the grantee's attained age and years of continuous service at retirement. Uri Clinton, Attorney-in-Fact for Stephen S. Thompson 2024-01-04