X0609 4 2026-05-07 0000906553 BOYD GAMING CORP BYD 0001423873 Bailey John Robert false 6465 S. RAINBOW BLVD. LAS VEGAS NV 89118 1 0 0 0 0 Common Stock 2026-05-07 4 A 0 2347 0 A 29858 I By Trust 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. By the JRB-TAT Bailey Family Trust. Uri Clinton, Attorney-in-Fact for John R. Bailey 2026-05-11