EXHIBIT 99.1 Global Self Storage Reports Full Year 2023 Results Strong Occupancy Rates and Tenant Duration Drove Same-Store Revenue Growth Despite Competitive Move-in Rate Environment Millbrook, NY – March 26, 2024 – Global Self Storage, Inc. (NASDAQ: SELF), a real estate investment trust that owns, operates, manages, acquires, and redevelops self-storage properties, reported results for the fourth quarter and full year ended December 31, 2023. All comparisons are to the same year-ago period unless otherwis ...