X0508 4 2024-02-28 0000906553 BOYD GAMING CORP BYD 0001664714 Bogich Ted 6465 S. RAINBOW BLVD. LAS VEGAS NV 89118 0 1 0 0 Chief Operating Officer 0 Common Stock 2024-02-28 4 A 0 20104 0 A 83934 D Common Stock 2024-02-28 4 F 0 7909 63.96 D 76025 D Common Stock 2024-02-28 4 A 0 13593 0 A 89618 D Represents shares underlying Performance Share Units that vested on February 28, 2024. The Reporting Person was awarded 13,593 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 will vest in full on February 28, 2027. 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. /s/ Uri Clinton, attorney-in-fact for Ted Bogich 2024-03-01