Ventas, Inc. is an S&P 500 company focused on delivering strong, sustainable shareholder returns by enabling exceptional environments that benefit a large and growing aging population. We hold a portfolio that includes senior housing communities, outpatient medical buildings, research centers, hospitals and healthcare facilities located in North America and the United Kingdom. As of December 31, 2025, we owned or had investments in 1,409 properties consisting of 1,374 properties in our reportable segments ("Segment Properties") and 35 properties held by unconsolidated real estate entities in our non-segment operations. We are headquartered in Chicago, Illinois with additional corporate offices in Louisville, Kentucky and New York, New York.
We elected to be taxed as a real estate investment trust ("REIT") under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the "Code"), commencing with our taxable year ended December 31, 1999. Provided we qualify for taxation as a REIT, we generally are not required to pay U.S. federal corporate income taxes on our REIT taxable income that is currently distributed to our stockholders. In order to maintain our qualification as a REIT, we must satisfy a number of technical requirements, which impact how we invest in, operate and manage our assets. See "Risk Factors—Risks Relating to Our REIT Status" included in Part I, Item 1A of this Annual Report.
We operate through three reportable segments: senior housing operating portfolio, which we refer to as "SHOP," outpatient medical and research portfolio, which we refer to as "OM&R," and triple-net leased properties, which we refer to as "NNN." We also hold assets outside of our reportable segments, which we refer to as non-segment assets, and which consist primarily of corporate assets, including cash and cash equivalents, restricted cash, loans receivable and investments, accounts receivable and investments in unconsolidated entities. Our investments in unconsolidated entities include investments made through our third-party institutional private capital management platform, Ventas Investment Management ("VIM"). Through VIM, we partner with third-party institutional investors to invest in real estate through various joint ventures and other co-investment vehicles where we are the sponsor or general partner, including our open-ended investment vehicle, the Ventas Life Science & Healthcare Real Estate Fund (the "Ventas Fund"). Our investments in unconsolidated entities also include investments in operating entities, such as Ardent Health, Inc. (together with its subsidiaries, "Ardent") and Atria Senior Living, Inc. (together with its subsidiaries, "Atria"). See our Consolidated Financial Statements and the related notes, including "Note 7 – Investments in Unconsolidated Entities" included in Part II, Item 8 of this Annual Report.
Our chief operating decision maker evaluates performance of the combined properties in each operating segment and determines how to allocate resources to these segments based on net operating income ("NOI") for each segment. See our Consolidated Financial Statements and the related notes, including "Note 2 – Accounting Policies" and "Note 18 – Segment Information" included in Part II, Item 8 of this Annual Report.