X0508 4 2024-05-28 0000906553 BOYD GAMING CORP BYD 0001421390 Hirsberg Josh 6465 S. RAINBOW BLVD. LAS VEGAS NV 89118 0 1 0 0 CFO & Treasurer 0 Common Stock 2024-05-28 4 M 0 23431 51.76 A 438615 D Common Stock 20500 I By Spouse* Employee Stock Option (Right to Buy 51.76 2024-05-28 4 M 0 23431 0 D 2024-12-10 Common Stock 23431 0 D Options granted under Boyd Gaming Corporation's 2012 Stock Incentive Plan. Vesting plan calls for options to become exercisable at the rate of 33.333% per year on the first day of each successive 12 month period commencing one year from grant date of December 10, 2014. * The reporting person expressly disclaims beneficial ownership of any securities of the Issuer except for those securities that are owned directly by the Reporting Person or to the extent of the Reporting Person's pecuniary interest in a trust or other entity which owns such securities. /s/ Uri Clinton, attorney-in-fact for Josh Hirsberg 2024-05-29