X0306 4 2022-02-14 0 0001289490 Extra Space Storage Inc. EXR 0001330121 Margolis Joseph D 2795 EAST COTTONWOOD PARKWAY SUITE 300 SALT LAKE CITY UT 84121 0 1 0 0 Chief Executive Officer Common Stock 2022-02-14 4 A 0 52176 194.21 A 81724 D Common Stock 2022-02-14 4 A 0 9719 194.21 A 91443 D Common Stock 2022-02-14 4 F 0 1276 196.87 D 90167 D Common Stock 2022-02-15 4 F 0 1621 196.15 D 88546 D Common Stock 85000 I Cove Hollow Lane I, LLC Common Stock 25144 I Cove Hollow Lane II, LLC Represents shares withheld by the Issuer in payment of the tax liability arising in connection with the settlement of vested restricted stock awards. Restricted stock awards vest 25% annually over four years, beginning on the first anniversary of the grant date. Represents the number of shares of common stock issued upon the vesting of performance stock units (PSUs). Each PSU represented a contingent right to receive shares of the Issuer common stock. The PSUs were originally granted on February 16, 2019 and were eligible to vest based on the Issuer achievement of certain performance objectives during the three-year performance period ending December 31, 2021. On February 14, 2022, the Compensation Committee of the Board of Directors of the Issuer certified the Issuer achievement relative to the applicable performance objectives and approved the vesting of the PSUs with respect to these shares. Restricted stock awards vest 25% annually over four years, beginning on March 1st the year after the award is granted. Shares held in Cove Hollow Lane I, LLC. The reporting person disclaims beneficial ownership in the common stock held by Cove Hollow Lane II, LLC, except to the extent of his pecuniary interest therein. Grace Kunde - attorney in fact 2022-02-16