Welltower is a publicly traded real estate investment trust founded in 1970 as Health Care Fund Inc. and headquartered in Toledo, Ohio. Trading on the New York Stock Exchange under ticker symbol WELL, the company is an S&P 500 component with a market capitalization of $166.9 billion as of June 30, 2026. Welltower operates as a healthcare-focused REIT specializing in rental housing for aging seniors across the United States, United Kingdom, and Canada, with a portfolio of over 2,400 seniors and wellness housing communities. The company's business model centers on three primary operating segments: Seniors Housing Operating, Seniors Housing Triple-net, and Outpatient Medical. In October 2025, Welltower announced $23 billion in transactions to intensify its focus on seniors housing, including $14 billion in acquisitions spanning over 700 high-quality communities and 46,000+ units, funded through $9 billion of asset sales and loan repayments. Major acquisitions include a £5.2 billion portfolio of Barchester-operated communities in the UK and £1.2 billion HC-One portfolio. Welltower partners with leading operators including Cogir Management Corporation, Sunrise Senior Living, Aspire Healthcare, Oakmont Management Group, and Avery Healthcare. Top market exposure includes Southern California, Northern California, Greater London, New York/New Jersey, Dallas, Montreal, and Washington D.C.