Sec Form 4 Filing - Sondhi Samrat @ Extra Space Storage Inc. - 2022-02-14

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Sondhi Samrat 2. Issuer Name and Ticker or Trading Symbol Extra Space Storage Inc. [ EXR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Executive VP and CMO (Last) (First) (Middle) 2795 E COTTONWOOD PARKWAY, SUITE 300 3. Date of Earliest Transaction (MM/DD/YY) 02/14/2022 (Street) SALT LAKE CITY, UT84121 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 02/14/2022 A 11,184( 2 ) A $ 194.21 85,204 D Common Stock 02/14/2022 A 1,883( 3 ) A $ 194.21 87,087 D Common Stock 02/14/2022 F 298( 1 ) D $ 196.87 86,789 D Common Stock 02/15/2022 F 342( 1 ) D $ 196.15 86,447 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Deriva tive Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Sondhi Samrat 2795 E COTTONWOOD PARKWAY SUITE 300 SALT LAKE CITY, UT84121 Executive VP and CMO Signatures Grace Kunde - attorney in fact 02/16/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )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. ( 2 )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. ( 3 )Restricted stock awards vest 25% annually over four years, beginning on March 1st the year after the award is granted.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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