X0508 4 2026-02-19 0000906553 BOYD GAMING CORP BYD 0001443809 Clinton Uri 6465 S. RAINBOW BLVD. LAS VEGAS NV 89118 0 1 0 0 General Counsel & Secretary 0 Common Stock 2026-02-19 4 A 0 11869 0.00 A 58199 D Common Stock 2026-02-22 4 A 0 11586 0.00 A 69785 D Common Stock 2026-02-22 4 F 0 9499 86.20 D 60286 D The Reporting Person was awarded 11,869 Restricted Stock Units for no consideration pursuant to the Issuer's 2020 Stock Incentive Plan. Each Restricted Stock Unit represents a contingent right to receive one share of Issuer common stock upon vesting. The Restricted Stock Units are subject to the forfeiture and other terms and conditions contained in the award agreement and the 2020 Stock Incentive Plan Represents shares underlying Performance Share Units that vested on February 22, 2026. Uri Clinton 2026-02-23