X0306 4 2020-12-14 0000906553 BOYD GAMING CORP BYD 0000940434 BOYD WILLIAM S 3883 HOWARD HUGHES PARKWAY NINTH FLOOR LAS VEGAS NV 89169 1 1 1 0 Executive Chairman Common Stock 2020-12-14 5 G 0 50000 D 19352101 I By Trust Common Stock 153117 I By Spouse * On December 14, 2020, the reporting person gifted 50,000 shares of Common Stock from William S. Boyd Gaming Properties Trust ("WSBGPT") to The Boyd Foundation. * 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. James J. Adams, Attorney-in-Fact for William S. Boyd 2020-12-16