X0306 4 2022-01-12 0000906553 BOYD GAMING CORP BYD 0000940434 BOYD WILLIAM S 6465 S. RAINBOW BLVD. LAS VEGAS NV 89118 1 1 1 0 Co-Executive Chair Common Stock 2022-01-12 5 G 0 E 624 D 19371746 I By Trust Common Stock 153117 I By Spouse * On January 12, 2022, the reporting person gifted 624 shares of Common Stock (the "Shares") from William S. Boyd Gaming Properties Trust ("WSBGPT") to the education trusts of the following grandchildren in the amounts specified in brackets: The William Samuel Boyd 1997 Education Trust Dated 7/1/97 (156 shares),; The Josef William Boyd 1997 Education Trust Dated 7/1/97 (156 shares); The Justin Boyd 1999 Education Trust Dated 11/1/99 (156 shares); and Sean William Johnson 1997 Education Trust Dated 7/1/97 (156 shares). * 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. Uri Clinton, Attorney-in-Fact for William S. Boyd 2022-01-14