M.D.C. Holdings: Completion Of Acquisition Or Disposition Of Assets, Notice Of Delisting Or Failure To Satisfy A Continued Listing Rule Or Standard; Transfer Of Listing, Material Modification To Rights Of Security Holders, Changes In Control Of Registrant, Departure Of Directors Or Certain Officers; Election Of Directors; Appointment Of Certain Officers; Compensatory Arrangements Of Certain Officers, Amendments To Articles Of Incorporation Or Bylaws; Changes In Fiscal Year, Other Events, Exhibits