Extra Space Storage Inc.

During the three months ended December 31, 2025, none of our officers or directors adopted, modified orterminated any contract, instruction or written plan for the purchase or sale of our securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or any “non Rule 10b5-1 trading arrangement,” except as follows:

On December 12, 2025, Joseph D. Margolis, our Chief Executive Officer and Director, modified his trading plan adopted pursuant to Rule 10b5-1(c) of the Securities Exchange Act of 1934, as amended (the “10b5-1 Plan”). The 10b5-1 Plan was adopted on February 28, 2025, and up to 30,000 shares of our common stock, par value $0.01 per share (“Common Stock”), could have been sold pursuant to the 10b5-1 Plan. Prior to the modification of the 10b5-1 Plan, a total of 15,000 shares of Common Stock were sold thereunder. The modification of the 10b5-1 Plan now allows for the sale of up to 7,500 shares of Common Stock from March 13, 2026 through March 17, 2026 subject to a limit price of $140.00 per share.