Apartment Investment and Management Company, commonly referred to as Aimco, is an American publicly traded real estate investment trust. As of December 31, 2024, the company owned 24 apartment communities comprising 5,243 apartment units as well as one hotel.

History Aimco traces its roots to The Considine Company, formed in 1975 by Terry Considine. Aimco was incorporated on January 10, 1994 and became a public company via an initial public offering on July 29, 1994.

Major acquisitions Year Company Notes Ref Walters Management Company J.W. English Company Apartment portfolio of Winthrop 8,175 apartments NHP 87,659 apartments Apartment division of Insignia Financial Group Price was $910 million Oxford and affiliates 36,662 apartment units Casden Founded by Alan Casden; owned 17,383 apartments, price was $206 million in stock and $198 million in cash

Major divestitures Year Company Notes Ref Affordable apartments business Sold to Related Companies Stabilized apartments Corporate spin-off of Apartment Income REIT Corp.; acquired by The Blackstone Group

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