Ventas, Inc. is an S&P 500 real estate investment trust focused on healthcare and senior living real estate, holding a portfolio of senior housing communities, outpatient medical buildings, research centers, hospitals and healthcare facilities located in North America and the United Kingdom. The company operates through three reportable segments: a senior housing operating portfolio (SHOP), an outpatient medical and research portfolio (OM&R), and triple-net leased properties (NNN). It also runs a third-party institutional private capital management platform, Ventas Investment Management, and elected to be taxed as a REIT beginning with its 1999 taxable year.