EXR: Financial results

Item 2.02 Results of Operations and Financial Condition On October 27, 2026, Extra Space Storage Inc. (the “Company”) issued a press release announcing its financial results for the three and nine months ended September 30, 2026. A copy of the press release is furnished as Exhibit 99.1 to this report and is incorporated by reference herein. The information contained in this Current Report, including the exhibit referenced herein, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of Extra Space Storage Inc., whether made before or after the date hereof, regardless of any general incorporation language in such filing. Item 9.01 Financial Statements and Exhibits (d) The following exhibit is furnished herewith: Exhibit Number Description of Exhibit 99.1 Press Release dated October 27, 2026 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. EXTRA SPACE STORAGE INC. Date: October 27, 2026 By /s/ Jeff Norman Name: Jeff Norman Title: Executive Vice President and Chief Financial Officer