0001186747-09-000029 4 1 20091015 20091019 20091019 BOYD GAMING CORP 0000906553 7990 880242733 NV 1231 3883 HOWARD HUGHES PARKWAY NINTH FLOOR LAS VEGAS NV 89169 7027927200 3883 HOWARD HUGHES PARKWAY NINTH FLOOR LAS VEGAS NV 89169 BOYD GROUP 19941130 JOHNSON MARIANNE BOYD 0001186742 4 34 001-12882 091126892 4 1 primary_doc.xml PRIMARY DOCUMENT