Millennium Management Group purchased the Bayshore Executive Plaza, a 94,752-square-foot office building at 10800-10852 Biscayne Blvd. in Miami for $14.5 million, or about $153 per square foot. The seller was 10800 Biscayne LLC. Built in 1995, the 10-story building was 81% leased at time of sale. Millennium Management plans to occupy a small amount of space in the building.