Welltower Inc, traded on NYSE under the symbol "WELL", was formed in 1970 as Health Care Fund and is headquartered in Toledo, OH, USA. The real estate investment trust has been a component of the S&P 500 since January 2009. Welltower has a significant presence in the United States, Canada, and United Kingdom. The portfolio holds nearly 1,000 senior housing operations assets, over 350 senior housing triple-net properties, about 450 outpatient medical facilities, and about 300 long-term/post-acute care locations. Approximately 85% of Welltower properties are in the United States, with holdings in Canada and the United Kingdom evenly split. Properties are distributed in major metro areas with the top five most frequent MSAs being New York, Dallas, Los Angeles, Chicago, and Greater London. Senior housing operations provided over 70% of the portfolio’s revenue for 2023. spread over 51 partner management companies. Outpatient facilities account for approximately 11% of Welltower's portfolio.