Public Storage, a prominent Real Estate Investment Trust (REIT) and member of both the S&P 500 and FT Global 500 indices, primarily engages in the acquisition, development, ownership, and operation of self-storage facilities. As of September 30, 2020, its extensive holdings included: (i) 2,504 self-storage properties spread across 38 U. S. states, encompassing roughly 171 million net rentable square feet; (ii) an approximate 35% common equity stake in Shurgard Self Storage SA (Euronext Brussels:SHUR), which operates 239 self-storage facilities under the "Shurgard" brand across seven Western European nations, accounting for about 13 million net rentable square feet; and (iii) a roughly 42% common equity interest in PS Business Parks, Inc. (NYSE:PSB), an entity that owned and managed approximately 28 million rentable square feet of commercial space.