 DENVER--BUSINESS WIRE--Apartment Investment and Management Company NYSE: AIV Aimco and AIMCO Properties, L.P. AIR OP announced today that Aimcos Board of Directors set the close of business on December 5, 2020 as the record date for the previously announced separation transaction to be effected through a pro rata distribution the REIT Distribution, where stockholders of Aimco will receive one share of Class A common stock of Apartment Income REIT Corp. AIR for every one sha 