MINNETONKA, MN-In the world of medical office building sales, professionals involved in the sector report a general shortfall of high-quality facilities to meet investor demand. In even shorter supply are large portfolios of high-quality healthcare real estate that piques the interest of most of the sector's largest investors, including real estate investment trusts, institutions and others.

Even so, MOB transactions in Q2 were highlighted by the sale of a portfolio -- the final 11 properties to change hands as part of an overall 17-property portfolio deal. The deal was the top healthcare real estate transaction of the quarter, a quarter that saw MOB sales fall by 28% from Q1. The quarter was actually lacking in blockbuster deals, though the top two – listed below -- were impressive.

Each quarter, Healthcare Real Estate Insights reports on total medical office building sales volume, the number of transactions taking place, and other information, such as the national average cap rate and the price per square foot. Most of the information comes by way of Real Capital Analytics (RCA), a real estate research firm.