Sec Form 4 Filing - Cramer David @ National Storage Affiliates Trust - 2020-12-31

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 Cramer David 2. Issuer Name and Ticker or Trading Symbol National Storage Affiliates Trust [ NSA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Operating Officer (Last) (First) (Middle) C/O NATIONAL STORAGE AFFILIATES TRUST, 8400 EAST PRENTICE AVENUE, 9TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 12/31/2020 (Street) GREENWOOD VILLAGE, CO80111 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 shares of beneficial interest, $0.01 par value ( 1 ) 12/31/2020 C 95,171 ( 1 ) A $ 0 ( 1 ) 1,915,367 ( 1 ) ( 2 ) ( 3 ) 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 Derivative 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 Class A OP Units ( 1 ) ( 1 ) 12/31/2020 C 95,171 ( 1 ) ( 1 ) ( 4 ) Common shares of beneficial interest, $0.01 par value 95,171 $ 0 ( 1 ) 62,764 ( 1 ) ( 2 ) D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Cramer David C/O NATIONAL STORAGE AFFILIATES TRUST 8400 EAST PRENTICE AVENUE, 9TH FLOOR GREENWOOD VILLAGE, CO80111 Chief Operating Officer Signatures David Cramer, by Jason Parsont, his Attorney-in-fact 01/05/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Reporting Person redeemed 95,171 Class A common units of limited partner interest (the "Class A OP Units") of NSA OP, LP (the "Partnership"), of which National Storage Affiliates Trust (the "Issuer") is the general partner. These Class A OP Units were held by the Reporting Person, who received 95,171 common shares of beneficial interest ("Shares") of the Issuer upon redemption. ( 2 )The Reporting Person's total direct and indirect beneficial ownership following the reported transactions above is (i) 1,915,367 Shares and (ii) 62,764 Class A OP Units (which includes those securities convertible into, or exchangeable for, such Class A OP Units as previously reported). The 62,764 Class A OP Units referred to above do not include derivative securities of other classes or non-derivative securities of the Reporting Person that were previously reported. ( 3 )The Reporting Person's total direct and indirect beneficial ownership of Shares following the reported transactions above includes the Shares described in footnote 1 above and excludes 48,541 Shares and 400 Shares that the Reporting Person and his spouse respectively contributed to SecurCare Bonus Pool, LLC ("Bonus Pool") on March 31, 2020, as previously reported in the Reporting Person's Form 3. On October 17, 2020, the Reporting Person resigned as a manager of Bonus Pool and is no longer a controlling person and does not have or share voting or investment power over the portfolio of Bonus Pool. ( 4 )N/A

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).

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