NSA.PRB / National Storage Affiliates Trust - Preferred Stock - تصريحات هيئة الأوراق المالية والبورصات، التقرير السنوي، بيان الوكيل

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الإحصائيات الأساسية
LEI 529900FS06O8GOYNR108
CIK 1618563
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to National Storage Affiliates Trust - Preferred Stock
SEC Filings (Chronological Order)
توفر هذه الصفحة قائمة كاملة ومرتبة ترتيبًا زمنيًا لتصريحات هيئة الأوراق المالية والبورصات، باستثناء تصريحات الملكية التي نقدمها في مكان آخر.
August 5, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affi

August 4, 2025 EX-99.1

National Storage Affiliates Trust Reports Second Quarter 2025 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

August 4, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2025 National Storage A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2025 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

May 15, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 12, 2025 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

May 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Aff

May 5, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2025 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

May 5, 2025 EX-99.1

National Storage Affiliates Trust Reports First Quarter 2025 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

March 28, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confide

March 28, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confide

February 27, 2025 EX-10.6

First Amendment to Third Amended and Restated Credit Agreement dated as of September 8, 2023 by and among NSA OP, LP, as Borrower, the lenders from time to time party hereto, and KeyBank National Association, as Administrative Agent, and joined in for certain purposes by certain Subsidiaries of the Borrower and National Storage Affiliates Trust, with Keybanc Capital Markets, Inc., and PNC Capital Markets LLC, as Co-Bookrunners and Co-Lead Arrangers, PNC Bank, National Association, as Syndication Agent, U.S. Bank National Association, JPMorgan Chase Bank, N.A., and Capital One, National Association as Co-Lead Arrangers and Co-Documentation Agent, BofA Securities, Inc., Truist Securities, Inc., Wells Fargo Securities, LLC, and Regions Securities, LLC as Co-Lead Arrangers, and Truist Bank, N.A., Wells Fargo Bank, N.A., Regions Bank, and Bank of America, N.A., as Co-Documentation Agents

1 FIRST AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT This FIRST AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT (the “First Amendment”) is made and entered into as of the 28th day of September, 2023, by and among NSA OP, LP, a Delaware limited partnership (the “Borrower”), certain Subsidiaries of the Borrower party to the Credit Agreement referred to below (collectively, the “

February 27, 2025 EX-10.11

Registration Rights Agreement, by and among National Storage Affiliates Trust and the parties listed on Schedule 1 thereto

Exhibit 10.11 REGISTRATION RIGHTS AGREEMENT This REGISTRATION RIGHTS AGREEMENT, dated as of March 15, 2023, is made and entered into by and among National Storage Affiliates Trust, a Maryland real estate investment trust (the "REIT") and the Persons (as defined herein) listed on Schedule 1, as amended from time to time (such Persons, in their capacity as holders of Registrable Shares, the "Holders

February 27, 2025 EX-21.1

List of subsidiaries of National Storage Affiliates Trust

Exhibit 21.1 Subsidiaries Subsidiary d/b/a Jurisdiction 2016 JV MHC, LLC Delaware 2016 JV Property Holdings, LLC Delaware All Stor Asheville, LLC Delaware All Stor Carolina Beach, LLC Delaware All Stor Durham, LLC Delaware All Stor Indian Trail, LLC Delaware All Stor MH Delaware All Stor NC, LLC Delaware All Stor Prospect, LLC Delaware All Stor Swansboro, LLC Delaware All Stor Swansboro II, LLC De

February 27, 2025 EX-10.21

Form of LTIP Unit Award Agreement for Executive Officers under the NSA OP, LP 2024 Long-Term Incentive Plan

Exhibit 10.21 NATIONAL STORAGE AFFILIATES TRUST FORM OF LTIP UNIT AWARD AGREEMENT THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF. NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL SATISFACTORY TO THE

February 27, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affiliat

February 27, 2025 EX-19.1

Statement of Corporate Policy Regarding Equity Transactions

Exhibit 19.1 NATIONAL STORAGE AFFILIATES TRUST STATEMENT OF CORPORATE POLICY REGARDING EQUITY TRANSACTIONS This Statement of Corporate Policy Regarding Equity Transactions ("Policy Statement") applies to all Officers1, trustees, employees and consultants (collectively, "Covered Persons") of National Storage Affiliates Trust and its subsidiaries (collectively, the "Company"). 1. It is the Company's

February 26, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 26, 2025 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

February 26, 2025 EX-99.1

National Storage Affiliates Trust Reports Fourth Quarter and Full Year 2024 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

February 13, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 13, 2025 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

January 7, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 1, 2025 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

December 4, 2024 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 2, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdictio

December 4, 2024 EX-10.1

Form of Internalization Award Agreement

Exhibit 10.1 NATIONAL STORAGE AFFILIATES TRUST FORM OF LTIP UNIT AWARD AGREEMENT THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF. NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL SATISFACTORY TO THE

November 19, 2024 EX-1.1

Sale Agreement, dated November 19, 2024, among National Storage Affiliates Trust, NSA OP, LP and the agents and forward purchasers party thereto (Exhibit 1.1 on Form 8-K, filed with the SEC on November 19, 2024, is incorporated herein by this reference)

Exhibit 1.1 SALES AGREEMENT November 19, 2024 BofA Securities, Inc. One Bryant Park New York, New York 10036 KeyBanc Capital Markets Inc. 127 Public Square Cleveland, Ohio 44114 BMO Capital Markets Corp. 151 W 42nd Street 32nd Floor New York, New York 10036 Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 BTIG, LLC 350 Bush Street San Francisco, CA 94104 Nomura Securities Internatio

November 19, 2024 424B5

Common Shares of Beneficial Interest

Filed Pursuant to Rule 424(b)(5) Registration No. 333-277750 PROSPECTUS SUPPLEMENT (To Prospectus dated March 7, 2024) $400,000,000 Common Shares of Beneficial Interest We entered into a sales agreement, dated November 19, 2024, (the “sales agreement”) with BofA Securities, Inc., BMO Capital Markets Corp., BTIG, LLC, Capital One Securities, Inc., Citigroup Global Markets Inc., Jefferies LLC, J.P.

November 19, 2024 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 19, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

November 19, 2024 EX-FILING FEES

Calculation of Filing Fee Tables (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables S-3 (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Share Proposed Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid Equity Common Shares of Beneficial Interest, par value $0.

November 14, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 14, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

October 31, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage

October 30, 2024 EX-99.1

National Storage Affiliates Trust Reports Third Quarter 2024 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

October 30, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdictio

October 18, 2024 SC 13G/A

NSA / National Storage Affiliates Trust / STATE STREET CORP Passive Investment

SC 13G/A 1 NationalStorageAffTrust.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* NATIONAL STORAGE AFFILIATES TRUST (Name of Issuer) COMMON STOCK (Title of Class of Securities) 637870106 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to design

October 3, 2024 424B7

1,527,027 Common Shares of Beneficial Interest

Filed Pursuant to Rule 424(b)(7) PROSPECTUS SUPPLEMENT (To Prospectus dated March 7, 2024) 1,527,027 Common Shares of Beneficial Interest This prospectus supplement relates to the offer and resale from time to time of our common shares of beneficial interest, par value $0.

October 3, 2024 EX-FILING FEES

Calculation of Filing Fee Tables (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables S-3 (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered(1) Proposed Maximum Offering Price Per Share(2) Proposed Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee(3) Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid Equity Common Shares of Beneficial Interest, par value $0.

August 28, 2024 EX-FILING FEES

Calculation of Filing Fee Tables

Exhibit 107 Calculation of Filing Fee Tables S-8 (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Amount Registered(1)(2) Proposed Maximum Offering Price Per Share(3) Proposed Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Fees to be Paid Equity Common Shares of Beneficial Interest, par value $0.

August 28, 2024 S-8

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 National Storage Affiliates Trust (Exact name of Registrant as specified in its charter) Maryland 46-5053858 (State or

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 National Storage Affiliates Trust (Exact name of Registrant as specified in its charter) Maryland 46-5053858 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 8400 East Prentice Avenue, 9th Floor 80111 Greenwood V

August 15, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 15, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

August 5, 2024 EX-99.1

National Storage Affiliates Trust Reports Second Quarter 2024 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

August 5, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

August 5, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affi

July 8, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 1, 2024 National Storage Aff

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 1, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

June 28, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 25, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction o

June 28, 2024 EX-10.1

Separation Agreement

Exhibit 10.1 SEPARATION AGREEMENT This Separation Agreement (this “Separation Agreement”) between National Storage Affiliates Trust (“Company”) and Derek Bergeon (“you”) sets forth certain terms of your separation from the Company, including certain waivers and releases by you, in order to receive certain separation payments and benefits, as set forth in detail below. By signing this Separation Ag

June 3, 2024 8-K

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 30, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

June 3, 2024 EX-10.1

Fourth Amended and Restated Agreement of Limited Partnership of NSA OP, LP (Exhibit 10.1 to the Current Report on Form 8-K filed with the SEC on June 3, 2024, is incorporated herein by this reference)

Exhibit 10.1 THE SECURITIES EVIDENCED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE SOLD, TRANSFERRED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION, UNLESS THE TRANSFEROR DELIVERS TO THE PARTNERSHIP AN OPINION OF COUNSEL SATISFACTORY TO THE PARTNERSHIP, IN FORM AND SUBSTANCE SAT

May 17, 2024 EX-10.1

National Storage Affiliates Trust 2024 Equity Incentive Plan (Exhibit 10.1 to the Current Report on Form 8-K filed with the SEC on May 17, 2024, is incorporated herein by this reference)

Exhibit 10.1 NATIONAL STORAGE AFFILIATES TRUST 2024 EQUITY INCENTIVE PLAN National Storage Affiliates Trust, a Maryland real estate investment trust, wishes to attract officers, Trustees, key employees, consultants, advisers and other personnel to the Company and its Subsidiaries and induce officers, Trustees, key employees, consultants, advisers and other personnel to remain with the Company and

May 17, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 13, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

May 16, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 13, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

May 6, 2024 8-K/A

Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K/A ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction o

May 6, 2024 EX-99.1

National Storage Affiliates Trust Reports First Quarter 2024 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

May 2, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Aff

May 1, 2024 EX-99.1

National Storage Affiliates Trust Reports First Quarter 2024 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

May 1, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

April 23, 2024 424B7

10,610,126 Common Shares of Beneficial Interest 1,212,340 6.000% Series A Cumulative Redeemable Preferred Shares of Beneficial Interest (Liquidation Preference $25.00 Per Share) 5,668,128 6.000% Series B Cumulative Redeemable Preferred Shares of Bene

Filed Pursuant to Rule 424(b)(7) PROSPECTUS SUPPLEMENT (To Prospectus dated March 7, 2024) 10,610,126 Common Shares of Beneficial Interest 1,212,340 6.

April 23, 2024 EX-FILING FEES

Calculation of Filing Fee Tables (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables 424(b)(7) (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Share(4) Proposed Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee(5) Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid Equity Common Shares of Beneficial Interest, par value $0.

April 23, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 23, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

April 16, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6

March 29, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confide

March 29, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confide

March 7, 2024 EX-4.3

Form of Indenture, between the Company and U.S. Bank Trust Company, National Association, as Trustee

Exhibit 4.3 DATED , 20 NATIONAL STORAGE AFFILIATES TRUST AS ISSUER AND U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS TRUSTEE INDENTURE Table of Contents Page Article I DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.01. Definitions 1 Section 1.02. Incorporation by Reference of Trust Indenture Act 3 Section 1.03. Rules of Construction 4 Article II THE SECURITIES 4 Section 2.01. Form and

March 7, 2024 EX-FILING FEES

Calculation of Filing Fee Tables

Exhibit 107 Calculation of Filing Fee Tables S-3ASR (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities CALCULATION OF REGISTRATION FEE Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Common shares of beneficial interest, par value $0.

March 7, 2024 S-3ASR

As filed with the Securities and Exchange Commission on March 7, 2024

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on March 7, 2024 Registration No.

March 7, 2024 EX-25.1

Statement of Eligibility on Form T-1 of Trustee under the Indenture.

Exhibit 25.1 securities and exchange commission Washington, D.C. 20549 FORM T-1 Statement of Eligibility Under The Trust Indenture Act of 1939 of a Corporation Designated to Act as Trustee Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) ¨ U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-1821036 I.R.S. E

February 28, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affiliat

February 28, 2024 EX-21.1

List of subsidiaries of National Storage Affiliates Trust

Exhibit 21.1 Subsidiaries Subsidiary d/b/a Jurisdiction 2016 JV MHC, LLC Delaware 2016 JV Property Holdings, LLC Delaware All Stor Asheville, LLC Delaware All Stor Carolina Beach, LLC Delaware All Stor Durham, LLC Delaware All Stor Indian Trail, LLC Delaware All Stor MH Delaware All Stor NC, LLC Delaware All Stor Prospect, LLC Delaware All Stor Swansboro, LLC Delaware All Stor Swansboro II, LLC De

February 28, 2024 EX-10.39

Recovery Policy Relating to Erroneously Awarded Incentive Compensation

Exhibit 10.39 National Storage Affiliates Trust Recovery Policy Relating to Erroneously Awarded Incentive Compensation 1. INTRODUCTION 1.1 The Board of Trustees (the "Board") of National Storage Affiliates Trust ("NSA") believes that it is in the best interests of NSA and its shareholders to create and maintain a culture that emphasizes integrity and accountability and that reinforces NSA's overal

February 28, 2024 EX-10.32

Form of LTIP Unit Award Agreement for Executive Officers

Exhibit 10.32 NATIONAL STORAGE AFFILIATES TRUST FORM OF LTIP UNIT AWARD AGREEMENT THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF. NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL SATISFACTORY TO THE

February 28, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2024 National Storag

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

February 28, 2024 EX-4.3

Description of Common Shares of Beneficial Interest, 6.000% Series A Cumulative Redeemable Preferred Shares of Beneficial Interest and 6.000% Series B Cumulative Redeemable Preferred Shares of Beneficial Interest (Exhibit 4.3 to the Annual Report on Form 10-K, filed with the SEC on February 28, 2024, is incorporated herein by this reference)

Exhibit 4.3 Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 Unless otherwise specified or the context requires otherwise, the terms “company,” “we,” “us” and “our” refer to National Storage Affiliates Trust, a Maryland real estate investment trust, together with its subsidiaries. The following summary of the material terms of our

February 28, 2024 EX-99.1

National Storage Affiliates Trust Reports Fourth Quarter and Full Year 2023 Results

Table of Contents Page 1 Earnings Release 8 Consolidated Statements of Operations 9 Consolidated Balance Sheets 10 Schedule 1 - Funds From Operations and Core Funds From Operations 12 Schedule 2 - Other Non-GAAP Financial Measurements 13 Schedule 3 - Portfolio Summary 15 Schedule 4 - Debt and Equity Capitalization 17 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 18 Sc

February 15, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 15, 2024 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

February 13, 2024 SC 13G/A

NSA / National Storage Affiliates Trust / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: National Storage Affiliates Trust Title of Class of Securities: Common Stock CUSIP Number: 637870106 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedu

February 8, 2024 SC 13G/A

NSA / National Storage Affiliates Trust / Howard Kevin Maxen - SC 13G/A Passive Investment

SC 13G/A 1 a2023schedule13gakevinhowa.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 8)* National Storage Affiliates Trust (Name of Issuer) Common Shares of Beneficial Interest, par value $0.01 per share (Title of Class of Securities) 637870106 (CUSIP Number) December 31, 2023 (Date of Event

January 4, 2024 EX-10.1

Form of Amended and Restated 2022 and 2023 LTIP Unit Award Agreement

Exhibit 10.1 NATIONAL STORAGE AFFILIATES TRUST AMENDED AND RESTATED FORM OF 20[●] LTIP UNIT AWARD AGREEMENT THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF. NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF C

January 4, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 29, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

December 1, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 1, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdictio

November 9, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 9, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdictio

November 9, 2023 EX-3.1

Third Amended and Restated Bylaws of National Storage Affiliates Trust (Exhibit 3.1 to the Current Report on Form 8-K, filed with the SEC on November 9, 2023, is incorporated herein by this reference)

Exhibit 3.1 NATIONAL STORAGE AFFILIATES TRUST THIRD AMENDED AND RESTATED BYLAWS ARTICLE I OFFICES Section 1. Principal Office. The principal office of the Trust in the State of Maryland shall be located at such place as the Board of Trustees may from time to time designate. Section 2. Additional Offices. The Trust may have additional offices, including a principal executive office, at such places

November 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage

November 1, 2023 EX-99.1

National Storage Affiliates Trust Reports Third Quarter 2023 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 17 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 18 Sch

November 1, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 1, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdictio

October 10, 2023 8-K

Unregistered Sales of Equity Securities, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 6, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

September 28, 2023 8-K

Unregistered Sales of Equity Securities, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 26, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdict

September 14, 2023 8-A12B

Registration Statement on Form 8-A (“

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-A ————————— FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 ————————— National Storage Affiliates Trust (Exact Name of Registrant as Specified in Its Charter) ————————— Maryland 46-5053858 (State or other jurisdiction of incorporation or

September 14, 2023 424B7

5,668,128 6.000% Series B Cumulative Redeemable Preferred Shares of Beneficial Interest (Liquidation Preference $25.00 Per Share)

Filed Pursuant to Rule 424(b)(7) PROSPECTUS SUPPLEMENT (To Prospectus dated February 26, 2021) 5,668,128 6.

September 14, 2023 EX-3.3

Articles Supplementary designating the Series B Preferred Shares of National Storage Affiliates Trust (Exhibit 3.1 to the Current Report on Form 8-K filed with the SEC on March 23, 2023, is incorporated herein by this reference)

Exhibit 3.3 NATIONAL STORAGE AFFILIATES TRUST ARTICLES SUPPLEMENTARY 7,000,000 6.000% SERIES B CUMULATIVE REDEEMABLE PREFERRED SHARES OF BENEFICIAL INTEREST March 15, 2023 National Storage Affiliates Trust, a Maryland real estate investment trust (the "Trust"), hereby certifies to the State Department of Assessments and Taxation of Maryland (the "Department") that: FIRST: Pursuant to the authority

September 14, 2023 EX-FILING FEES

Calculation of Filing Fee Tables (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables 424(b)(7) (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Share(2) Proposed Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee(3) Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid Equity 6.

September 14, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 14, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdict

August 8, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affi

August 8, 2023 EX-10.1

Employment Agreement dated as of May 31, 2023 by and between National Storage Affiliates Trust and William S. Cowan, Jr. (Exhibit 10.1 to the Quarterly Report on Form 10-Q, filed with the SEC on August 8, 2023, is incorporated herein by this reference)

Exhibit 10.1 EMPLOYMENT AGREEMENT This EMPLOYMENT AGREEMENT (this "Agreement") is dated as of May 31, 2023 (the "Commencement Date"), by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and William S. Cowan, Jr., residing at the address set forth in the Company's records (the "Executive"). WHEREAS, the Company wishes to appoint the Executive t

August 7, 2023 EX-99.1

National Storage Affiliates Trust Reports Second Quarter 2023 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

August 7, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

May 30, 2023 424B7

7,834,945 Common Shares of Beneficial Interest 33,441 6.000% Series A Cumulative Redeemable Preferred Shares of Beneficial Interest (Liquidation Preference $25.00 Per Share)

Filed Pursuant to Rule 424(b)(7) PROSPECTUS SUPPLEMENT (To Prospectus dated February 26, 2021) 7,834,945 Common Shares of Beneficial Interest 33,441 6.

May 30, 2023 EX-FILING FEES

Calculation of Filing Fee Tables (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables 424(b)(7) (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Share(3) Proposed Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee(4) Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Pay in Advance Equity Common Shares of Beneficial Interest, par value $0.

May 25, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 22, 2023 National Storage Aff

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 22, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

May 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Aff

May 2, 2023 EX-10.7

Employment Agreement dated as of January 1, 2023 by and between National Storage Affiliates Trust and Tiffany S. Kenyon (Exhibit 10.7 to the Quarterly Report on Form 10-Q, filed with the SEC on May 2, 2023, is incorporated herein by this reference)

Exhibit 10.7 EMPLOYMENT AGREEMENT This EMPLOYMENT AGREEMENT (this "Agreement") is dated as of January 1, 2023 (the "Commencement Date"), by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and Tiffany Kenyon, residing at the address set forth in the Company's records (the "Executive"). WHEREAS, the Company wishes to appoint the Executive as Ex

May 2, 2023 EX-10.5

Amended and Restated Employment Agreement dated as of April 1, 2023 by and between National Storage Affiliates Trust and David Cramer (Exhibit 10.5 to the Quarterly Report on Form 10-Q, filed with the SEC on May 2, 2023, is incorporated herein by this reference)

Exhibit 10.5 EMPLOYMENT AGREEMENT This EMPLOYMENT AGREEMENT (this "Agreement") is dated as of April 1, 2023 (the "Commencement Date"), by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and David G. Cramer, residing at the address set forth in the Company's records (the "Executive"). WHEREAS, the Company wishes to appoint the Executive to ser

May 2, 2023 EX-10.8

Employment Agreement dated as of April 1, 2023 by and between National Storage Affiliates Trust and Derek Bergeon

Exhibit 10.8 EMPLOYMENT AGREEMENT This EMPLOYMENT AGREEMENT (this "Agreement") is dated as of April 1, 2023 (the "Commencement Date"), by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and Derek Bergeon, residing at the address set forth in the Company's records (the "Executive"). WHEREAS, the Company wishes to appoint the Executive to serve

May 2, 2023 EX-10.1

Third Amended and Restated Credit Agreement dated as of January 3, 2023 by and among NSA OP, LP, as Borrower, the lenders from time to time party hereto, and KeyBank National Association, as Administrative Agent, and joined in for certain purposes by certain Subsidiaries of the Borrower and National Storage Affiliates Trust, with Keybanc Capital Markets, Inc., and PNC Capital Markets LLC, as Co-Bookrunners and Co-Lead Arrangers, PNC Bank, National Association, as Syndication Agent, U.S. Bank National Association, JPMorgan Chase Bank, N.A., and Capital One, National Association as Co-Lead Arrangers and Co-Documentation Agent, BofA Securities, Inc., Truist Securities, Inc., Wells Fargo Securities, LLC, and Regions Securities, LLC as Co-Lead Arrangers, and Truist Bank, N.A., Wells Fargo Bank, N.A., Regions Bank, and Bank of America, N.A., as Co-Documentation Agents.

Exhibit 10.1 THIRD AMENDED AND RESTATED CREDIT AGREEMENT Dated as of January 3, 2023 by and among NSA OP, LP, as Borrower, THE LENDERS FROM TIME TO TIME PARTY HERETO, and KEYBANK NATIONAL ASSOCIATION, as Administrative Agent, and joined in for certain purposes by certain Subsidiaries of the Borrower and NATIONAL STORAGE AFFILIATES TRUST, with KEYBANC CAPITAL MARKETS INC., as Co-Bookrunner and Co-L

May 2, 2023 EX-10.6

Amended and Restated Employment Agreement dated as of April 1, 2023 by and between National Storage Affiliates Trust and Brandon S. Togashi (Exhibit 10.6 to the Quarterly Report on Form 10-Q, filed with the SEC on May 2, 2023, is incorporated herein by this reference)

Exhibit 10.6 AMENDED AND RESTATED EMPLOYMENT AGREEMENT This AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this "Agreement") is dated as of April 1, 2023, by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and Brandon S. Togashi, residing at the address set forth in the Company’s records (the "Executive"). WHEREAS, the Executive previously entere

May 2, 2023 EX-10.2

Partnership Unit Designation of Series B Preferred Units of NSA OP, LP dated as of March 15, 2023 (Exhibit 10.2 to the Annual Report on Form 10-Q, filed with the SEC on May 2, 2023, is incorporated herein by this reference)

Exhibit 10.2 PARTNERSHIP UNIT DESIGNATION OF SERIES B PREFERRED UNITS OF NSA OP, LP This Partnership Unit Designation (this "Partnership Unit Designation") is made as of March 15, 2023 by National Storage Affiliates Trust, a Maryland real estate investment trust and the general partner (the "General Partner") of NSA OP, LP, a Delaware limited partnership (the "Partnership") pursuant to the Third A

May 2, 2023 EX-10.4

Amended and Restated Employment Agreement dated as of April 1, 2023 by and between National Storage Affiliates Trust and Tamara D. Fischer (Exhibit 10.4 to the Quarterly Report on Form 10-Q, filed with the SEC on May 2, 2023, is incorporated herein by this reference)

Exhibit 10.4 EMPLOYMENT AGREEMENT This EMPLOYMENT AGREEMENT (this "Agreement") is dated as of April 1, 2023 (the "Commencement Date"), by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and Tamara D. Fischer, residing at the address set forth in the Company's records (the "Executive"). WHEREAS, the Company wishes to appoint the Executive to s

May 2, 2023 EX-10.3

Amended and Restated Employment Agreement dated as of April 1, 2023 by and between National Storage Affiliates Trust and Arlen D. Nordhagen (Exhibit 10.3 to the Quarterly Report on Form 10-Q, filed with the SEC on May 2, 2023, is incorporated herein by this reference)

Exhibit 10.3 EMPLOYMENT AGREEMENT This EMPLOYMENT AGREEMENT (this "Agreement") is dated as of April 1, 2023 (the "Commencement Date"), by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and Arlen D. Nordhagen, residing at the address set forth in the Company's records (the "Executive"). WHEREAS, the Company wishes to appoint the Executive to

May 1, 2023 EX-99.1

National Storage Affiliates Trust Reports First Quarter 2023 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

May 1, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2023 National Storage Affi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

April 11, 2023 DEFR14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1 ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confi

April 10, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confide

April 7, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confide

March 21, 2023 EX-3.1

Articles Supplementary designating the Series B Preferred Shares of National Storage Affiliates Trust (Exhibit 3.1 to the Current Report on Form 8-K filed with the SEC on March 21, 2023, is incorporated herein by this reference)

Exhibit 3.1 NATIONAL STORAGE AFFILIATES TRUST ARTICLES SUPPLEMENTARY 7,000,000 6.000% SERIES B CUMULATIVE REDEEMABLE PREFERRED SHARES OF BENEFICIAL INTEREST March 15, 2023 National Storage Affiliates Trust, a Maryland real estate investment trust (the "Trust"), hereby certifies to the State Department of Assessments and Taxation of Maryland (the "Department") that: FIRST: Pursuant to the authority

March 21, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 15, 2023 National Storage A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 15, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

March 1, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023 National Storag

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

February 27, 2023 EX-10.14

Two Hundred Sixth Amendment To Third Amended and Restated Agreement of Limited Partnership Of NSA OP, LP and First Amendment To Partnership Unit Designation Of Series A-1 Cumulative Redeemable Preferred Units Of NSA OP, LP (Exhibit 10.14 to the Annual Report on Form 10-K, filed with the SEC on February 27, 2023, is incorporated herein by this reference)

Exhibit 10.14 TWO HUNDRED SIXTH AMENDMENT TO THIRD AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF NSA OP, LP AND FIRST AMENDMENT TO PARTNERSHIP UNIT DESIGNATION OF SERIES A-1 CUMULATIVE REDEEMABLE PREFERRED UNITS OF NSA OP, LP This Two Hundred Sixth Amendment (this "Amendment") to the Partnership Agreement (as defined below) of NSA OP, LP (the "Partnership"), and this First Amendment to

February 27, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affiliat

February 27, 2023 EX-21.1

List of subsidiaries of National Storage Affiliates Trust

Exhibit 21.1 Subsidiaries Subsidiary d/b/a Jurisdiction 2016 JV Property Holdings, LLC Delaware 2016 MHC, LLC Delaware All Stor Asheville, LLC Delaware All Stor Carolina Beach, LLC Delaware All Stor Durham, LLC Delaware All Stor Indian Trail, LLC Delaware All Stor MH Delaware All Stor NC, LLC Delaware All Stor Prospect, LLC Delaware All Stor Swansboro, LLC Delaware All Stor Swansboro II, LLC Delaw

February 27, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 27, 2023 National Storag

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 27, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

February 27, 2023 EX-10.16

Third Amended and Restated Credit Agreement dated as of January 3, 2023 by and among NSA OP, LP, as Borrower, the lenders from time to time party hereto, and KeyBank National Association, as Administrative Agent, and joined in for certain purposes by certain Subsidiaries of the Borrower and National Storage Affiliates Trust, with Keybanc Capital Markets, Inc., and PNC Capital Markets LLC, as Co-Bookrunners and Co-Lead Arrangers, PNC Bank, National Association, as Syndication Agent, U.S. Bank National Association, JPMorgan Chase Bank, N.A., and Capital One, National Association as Co-Lead Arrangers and Co-Documentation Agent, BofA Securities, Inc., Truist Securities, Inc., Wells Fargo Securities, LLC, and Regions Securities, LLC as Co-Lead Arrangers, and Truist Bank, N.A., Wells Fargo Bank, N.A., Regions Bank, and Bank of America, N.A., as Co-Documentation Agents.

Exhibit 10.16 THIRD AMENDED AND RESTATED CREDIT AGREEMENT Dated as of January 3, 2023 by and among NSA OP, LP, as Borrower, THE LENDERS FROM TIME TO TIME PARTY HERETO, and KEYBANK NATIONAL ASSOCIATION, as Administrative Agent, and joined in for certain purposes by certain Subsidiaries of the Borrower and NATIONAL STORAGE AFFILIATES TRUST, with KEYBANC CAPITAL MARKETS INC., as Co-Bookrunner and Co-

February 27, 2023 EX-99.1

National Storage Affiliates Trust Reports Fourth Quarter and Full Year 2022 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 17 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 18 Sch

February 14, 2023 SC 13G/A

NSA / National Storage Affiliates Trust / Howard Kevin Maxen - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 7)* National Storage Affiliates Trust (Name of Issuer) Common Shares of Beneficial Interest, par value $0.01 per share (Title of Class of Securities) 637870106 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the

February 9, 2023 SC 13G/A

NSA / National Storage Affiliates Trust / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01484-nationalstorageaffil.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: National Storage Affiliates Trust Title of Class of Securities: REIT CUSIP Number: 637870106 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box

January 3, 2023 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 3, 2023 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

November 10, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 10, 2022 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

November 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage

November 2, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2022 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdictio

November 2, 2022 EX-99.1

National Storage Affiliates Trust Reports Third Quarter 2022 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

August 4, 2022 EX-10.3

Amended and Restated Employment Agreement dated as of August 1, 2022 by and between National Storage Affiliates Trust and Tamara D. Fischer (exhibit 10.3 to the Quarterly Report on Form 10-Q filed with the SEC on August 4, 2022, is incorporated herein by reference)

Exhibit 10.3 AMENDED AND RESTATED EMPLOYMENT AGREEMENT This Amended and Restated Employment Agreement (this "Agreement") is dated as of August 1, 2022, by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and Tamara D. Fischer, residing at the address set forth in the Company?s records (the "Executive"). WHEREAS, the Executive previously entere

August 4, 2022 EX-10.4

Amended and Restated Employment Agreement dated as of August 1, 2022 by and between National Storage Affiliates Trust and David Cramer

Exhibit 10.4 AMENDED AND RESTATED EMPLOYMENT AGREEMENT This Amended and Restated Employment Agreement (this "Agreement") is dated as of August 1, 2022 by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and David Cramer, residing at the address set forth in the Company?s records (the "Executive"). WHEREAS, the Company originally offered the Ex

August 4, 2022 EX-10.2

Fifth Amendment to Credit Agreement dated as of July 29, 2022 by and among NSA OP, LP, as Borrower, the lenders from time to time party thereto, and KeyBank National Association, as Administrative Agent, and joined in for certain purposes by certain Subsidiaries of the Borrower and National Storage Affiliates Trust, with Keybanc Capital Markets Inc., and PNC Capital Markets LLC, as Co-Bookrunners and Co-Lead Arrangers, PNC Bank, National Association, as Syndication Agent, U.S. Bank National Association and BMO Capital Markets Corp. as Co-Lead Arrangers and Co-Documentation Agents, Wells Fargo Securities, LLC as Co-Lead Arranger, Wells Fargo Bank, National Association, as Co-Documentation Agent, and CitiBank, N.A., as Co-Lead Arranger and Co-Documentation Agent for the Revolving Credit Facility

Exhibit 10.2 FIFTH AMENDMENT TO CREDIT AGREEMENT This FIFTH AMENDMENT TO CREDIT AGREEMENT (the ?Fifth Amendment?) is made and entered into as of the 29th day of July, 2022, by and among NSA OP, LP, a Delaware limited partnership (the ?Borrower?), certain Subsidiaries of the Borrower party to the Credit Agreement referred to below (collectively, the ?Guarantors? and together with the Borrower, coll

August 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affi

August 3, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2022 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

August 3, 2022 EX-99.1

National Storage Affiliates Trust Reports Second Quarter 2022 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 9 Consolidated Balance Sheets 10 Schedule 1 - Funds From Operations and Core Funds From Operations 12 Schedule 2 - Other Non-GAAP Financial Measurements 13 Schedule 3 - Portfolio Summary 15 Schedule 4 - Debt and Equity Capitalization 17 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 18 Sc

June 9, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 9, 2022 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

May 27, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 23, 2022 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

May 5, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Aff

May 5, 2022 EX-10.1

Form of LTIP Unit Award Agreement for Executive Officers

Exhibit 10.1 THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF. NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES

May 4, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2022 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

May 4, 2022 EX-99.1

National Storage Affiliates Trust Reports First Quarter 2022 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

April 14, 2022 EX-FILING FEES

Calculation of Filing Fee Tables (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables 424(b)(7) (Form Type) National Storage Affiliates Trust (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Share(3) Proposed Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee(4) Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Common Shares of Beneficial Interest, par value $0.

April 14, 2022 424B7

697,399 Common Shares of Beneficial Interest 427,744 6.000% Series A Cumulative Redeemable Preferred Shares of Beneficial Interest (Liquidation Preference $25.00 Per Share)

Filed Pursuant to Rule 424(b)(7) PROSPECTUS SUPPLEMENT (To Prospectus dated February 26, 2021) 697,399 Common Shares of Beneficial Interest 427,744 6.

April 8, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT

DEF 14A 1 a2022nsaproxystatement.htm DEFINITIVE PROXY STATEMENT UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Ch

April 8, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confide

March 16, 2022 8-K

Unregistered Sales of Equity Securities, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2022 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

February 25, 2022 EX-10.17

Second Increase agreement and Fourth Amendment to Credit Agreement dated as of December 17, 2021 by and among NSA OP, LP, as Borrower, the lenders from time to time party thereto, and KeyBank National Association, as Administrative Agent, and joined in for certain purposes by certain Subsidiaries of the Borrower and National Storage Affiliates Trust, with Keybanc Capital Markets Inc., and PNC Capital Markets LLC, as Co-Bookrunners and Co-Lead Arrangers, PNC Bank, National Association, as Syndication Agent, U.S. Bank National Association and BMO Capital Markets Corp. as Co-Lead Arrangers and Co-Documentation Agents, Wells Fargo Securities, LLC as Co-Lead Arranger, Wells Fargo Bank, National Association, as Co-Documentation Agent, and CitiBank, N.A., as Co-Lead Arranger and Co-Documentation Agent for the Revolving Credit Facility

Exhibit 10.17 SECOND INCREASE AGREEMENT AND FOURTH AMENDMENT TO CREDIT AGREEMENT This SECOND INCREASE AGREEMENT AND FOURTH AMENDMENT TO CREDIT AGREEMENT (the ?Increase Agreement?) is made and entered into as of December 17, 2021 (the ?Increase Effective Date?), by and among NSA OP, LP, a Delaware limited partnership (the ?Borrower?), certain Subsidiaries of the Borrower party to the Credit Agreeme

February 25, 2022 EX-21.1

List of subsidiaries of National Storage Affiliates Trust

Exhibit 21.1 Subsidiaries Subsidiary d/b/a Jurisdiction 2016 JV Property Holdings, LLC Delaware 2016 MHC, LLC Delaware All Stor Asheville, LLC Delaware All Stor Carolina Beach, LLC Delaware All Stor Durham, LLC Delaware All Stor Indian Trail, LLC Delaware All Stor MH Delaware All Stor NC, LLC Delaware All Stor Prospect, LLC Delaware All Stor Swansboro, LLC Delaware All Stor Swansboro II, LLC Delaw

February 25, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affiliat

February 22, 2022 EX-99.1

National Storage Affiliates Trust Reports Fourth Quarter and Full Year 2021 Results

Table of Contents Page 1 Earnings Release 8 Consolidated Statements of Operations 9 Consolidated Balance Sheets 10 Schedule 1 - Funds From Operations and Core Funds From Operations 12 Schedule 2 - Other Non-GAAP Financial Measurements 13 Schedule 3 - Portfolio Summary 15 Schedule 4 - Debt and Equity Capitalization 17 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 18 Sc

February 22, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2022 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

February 11, 2022 SC 13G/A

NSA / National Storage Affiliates Trust / Howard Kevin Maxen - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6)* National Storage Affiliates Trust (Name of Issuer) Common Shares of Beneficial Interest, par value $0.01 per share (Title of Class of Securities) 637870106 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the

February 10, 2022 SC 13G/A

NSA / National Storage Affiliates Trust / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: National Storage Affiliates Trust Title of Class of Securities: REIT CUSIP Number: 637870106 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is fi

December 21, 2021 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 17, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

November 12, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 9, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdictio

November 12, 2021 EX-99.1

National Storage Affiliates Trust Announces Signing of $450 Million Debt Private Placement

Exhibit 99.1 November 9, 2021 National Storage Affiliates Trust Announces Signing of $450 Million Debt Private Placement GREENWOOD VILLAGE, Colo. - (BUSINESS WIRE) - National Storage Affiliates Trust (?NSA? or the ?Company?) (NYSE: NSA) today announced the Company's operating partnership entered into an agreement to issue $75.0 million of 2.72% senior unsecured notes due November 30, 2030, $175.0

November 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage

November 4, 2021 EX-10.1

First Increase Agreement and Third Amendment to Credit Agreement dated as of September 21, 2021 by and among NSA OP, LP, as Borrower, the lenders from time to time party thereto, and KeyBank National Association, as Administrative Agent, and joined in for certain purposes by certain Subsidiaries of the Borrower and National Storage Affiliates Trust, with Keybanc Capital Markets Inc., and PNC Capital Markets LLC, as Co-Bookrunners and Co-Lead Arrangers, PNC Bank, National Association, as Syndication Agent, U.S. Bank National Association and BMO Capital Markets Corp. as Co-Lead Arrangers and Co-Documentation Agents, Wells Fargo Securities, LLC as Co-Lead Arranger, Wells Fargo Bank, National Association, as Co-Documentation Agent, and CitiBank, N.A., as Co-Lead Arranger and Co-Documentation Agent for the Revolving Credit Facility

Exhibit 10.1 FIRST INCREASE AGREEMENT AND THIRD AMENDMENT TO CREDIT AGREEMENT This FIRST INCREASE AGREEMENT AND THIRD AMENDMENT TO CREDIT AGREEMENT (the ?Third Amendment?) is made and entered into as of the 21st day of September, 2021 (the ?Amendment Date?), by and among NSA OP, LP, a Delaware limited partnership (the ?Borrower?), certain Subsidiaries of the Borrower party to the Credit Agreement

November 2, 2021 EX-99.1

National Storage Affiliates Trust Reports Third Quarter 2021 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

November 2, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdictio

September 23, 2021 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 21, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdict

August 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affi

August 3, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

August 3, 2021 EX-99.1

National Storage Affiliates Trust Reports Second Quarter 2021 Results

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

July 26, 2021 EX-1.1

Underwriting Agreement, dated July 20, 2021, among National Storage Affiliates Trust, NSA OP, LP, Morgan Stanley & Co. LLC, Citigroup Global Markets Inc., and BofA Securities, Inc. as representatives of the several underwriters named therein

Exhibit 1.1 8,800,000 Common Shares of Beneficial Interest National Storage Affiliates Trust UNDERWRITING AGREEMENT July 20, 2021 Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 BofA Securities, Inc. One Bryant Park New York, New York 10036 As Representatives of the Underwriters Ladies and Gentlemen: Introd

July 26, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 20, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction o

July 22, 2021 424B5

CALCULATION OF REGISTRATION FEE

TABLE OF CONTENTS Filed Pursuant to Rule 424 (b)(5) Registration No. 333-253663? CALCULATION OF REGISTRATION FEE ? ? ? ? Title of Each Class of Securities to be Registered ? ? ? Amount to be Registered(1) ? ? ? Proposed Maximum Offering Price Per Share ? ? ? Proposed Maximum Aggregate Offering Price(2) ? ? ? Amount of Registration Fee(2) ? ? Common shares, par value $0.01 per share ? ? ? 10,120,00

July 20, 2021 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 20, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction o

July 20, 2021 424B5

Subject to completion, dated July 20, 2021

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

May 27, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 24, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

May 26, 2021 424B7

CALCULATION OF REGISTRATION FEE

Filed Pursuant to Rule 424(b)(7) Registration No. 333-253663 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered(1) Amount to be Registered Proposed Maximum Offering Price Per Share(3) Proposed Maximum Aggregate Offering Price Amount of Registration Fee(4)(5)(6) Common Shares of Beneficial Interest, par value $0.01 per share 3,605,124(1) $43.97 $158,517,302.28 $17,29

May 19, 2021 EX-1.1

Amendment No. 1 to the Sales Agreement (Exhibit 1.1 to the Current Report on Form 8-K filed with the SEC on May 19, 2021, is incorporated herein by this reference)

Exhibit 1.1 NATIONAL STORAGE AFFILIATES TRUST Amendment No. 1 to the Sales Agreement May 19, 2021 Jefferies LLC 520 Madison Avenue New York, New York 10022 KeyBanc Capital Markets Inc. 127 Public Square Cleveland, Ohio 44114 Robert W. Baird & Co. Incorporated 777 East Wisconsin Avenue Milwaukee, Wisconsin 53202 Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 BMO Capital Markets Cor

May 19, 2021 424B5

CALCULATION OF REGISTRATION FEE

TABLE OF CONTENTS CALCULATION OF REGISTRATION FEE ? ? Title of Each Class of Securities to be Registered ? ? ? Proposed Maximum Aggregate Offering Price ? ? ? Amount of Registration Fee(1) ? Common Shares of Beneficial Interest, par value $0.

May 19, 2021 EX-3.1

Articles Supplementary designating the Series A Preferred Shares of National Storage Affiliates Trust (Exhibit 3.1 to the Current Report on Form 8-K filed with the SEC on May 19, 2021, is incorporated herein by this reference)

Exhibit 3.1 NATIONAL STORAGE AFFILIATES TRUST ARTICLES SUPPLEMENTARY 6.000% SERIES A CUMULATIVE REDEEMABLE PREFERRED SHARES OF BENEFICIAL INTEREST May 19, 2021 National Storage Affiliates Trust, a Maryland real estate investment trust (the ?Trust?), hereby certifies to the State Department of Assessments and Taxation of Maryland (the ?Department?) that: FIRST: Pursuant to the authority expressly v

May 19, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 19, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

May 5, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Aff

May 4, 2021 EX-99.1

Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

May 4, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

April 9, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confide

April 9, 2021 DEF 14A

Definitive Proxy Statement on Schedule 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confide

March 16, 2021 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 1, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction o

March 1, 2021 424B5

CALCULATION OF REGISTRATION FEE

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(5) Registration No. 333-253663? ? CALCULATION OF REGISTRATION FEE ? ? Title of Each Class of Securities to be Registered ? ? ? Proposed Maximum Aggregate Offering Price ? ? ? Amount of Registration Fee(1)(2) ? ? Common Shares of Beneficial Interest, par value $0.01 per share (?common shares?), and 6.000% Series A Cumulative Redeemable Preferred Share

February 26, 2021 EX-21.1

List of subsidiaries of National Storage Affiliates Trust

Exhibit 21.1 Subsidiaries Subsidiary d/b/a Jurisdiction 2016 JV Property Holdings, LLC Delaware 2016 MHC, LLC Delaware All Stor Asheville, LLC Delaware All Stor Carolina Beach, LLC Delaware All Stor Durham, LLC Delaware All Stor Indian Trail, LLC Delaware All Stor MH Delaware All Stor NC, LLC Delaware All Stor Prospect, LLC Delaware All Stor Swansboro, LLC Delaware All Stor Swansboro II, LLC Delaw

February 26, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 25, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

February 26, 2021 S-3ASR

- S-3ASR

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on February 26, 2021 Registration No.

February 26, 2021 EX-25.1

Statement of Eligibility on Form T-1 of Trustee under the Indenture.

EX-25.1 6 tm217608d2ex25-1.htm EXHIBIT 25.1 Exhibit 25.1 securities and exchange commission Washington, D.C. 20549 FORM T-1 Statement of Eligibility Under The Trust Indenture Act of 1939 of a Corporation Designated to Act as Trustee Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) ¨ U.S. BANK NATIONAL ASSOCIATION (Exact name of Trustee as specified in its

February 26, 2021 EX-10.13

Partnership Unit Designation of Series BL Class B OP Units of NSA OP, LP (Exhibit 10.13 to the Annual Report on Form 10-K, filed with the SEC on February 25, 2021, is incorporated herein by this reference)

Exhibit 10.13 PARTNERSHIP UNIT DESIGNATION OF SERIES BL CLASS B OP UNITS OF NSA OP, LP This Partnership Unit Designation (this "Partnership Unit Designation") is made as of December 30, 2020 by National Storage Affiliates Trust, a Maryland real estate investment trust and the general partner (the "General Partner") of NSA OP, LP, a Delaware limited partnership (the "Partnership"). WHEREAS, the Gen

February 26, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affiliat

February 26, 2021 EX-4.3

Form of Indenture, between the Company and U.S. Bank National Association, as Trustee

Exhibit 4.3 DATED , 20 NATIONAL STORAGE AFFILIATES TRUST AS ISSUER AND U.S. Bank National Association, AS TRUSTEE INDENTURE Table of Contents Page Article I DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.01. Definitions 1 Section 1.02. Incorporation by Reference of Trust Indenture Act 3 Section 1.03. Rules of Construction 4 Article II THE SECURITIES 4 Section 2.01. Form and Dating 4 Sectio

February 22, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ????????? FORM 8-K ????????? CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

February 22, 2021 EX-99.1

Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)* Name of issuer: National Storage Affiliates Trust Title of Class of Securities: REIT CUSIP Number: 637870106 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is fi

February 5, 2021 SC 13G/A

SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* National Storage Affiliates Trust (Name of Issuer) Common Shares of Beneficial Interest, par value $0.01 per share (Title of Class of Securities) (CUSIP Number) December 31, 20

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* National Storage Affiliates Trust (Name of Issuer) Common Shares of Beneficial Interest, par value $0.01 per share (Title of Class of Securities) 637870106 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the

February 5, 2021 SC 13G/A

SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* National Storage Affiliates Trust (Name of Issuer) Common Shares of Beneficial Interest, par value $0.01 per share (Title of Class of Securities) (CUSIP Number) December 31, 20

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* National Storage Affiliates Trust (Name of Issuer) Common Shares of Beneficial Interest, par value $0.01 per share (Title of Class of Securities) 637870106 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the

February 4, 2021 8-K

Unregistered Sales of Equity Securities, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 29, 2021 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdictio

November 6, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage

November 5, 2020 8-K

- 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 5, 2020 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdictio

November 5, 2020 EX-99.1

Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

September 25, 2020 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 22, 2020 National Stora

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 22, 2020 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdict

September 25, 2020 EX-1.2

Registered Forward Confirmation, dated September 22, 2020 by and between National Storage Affiliates Trust and Morgan Stanley & Co. LLC

Exhibit 1.2 REGISTERED FORWARD CONFIRMATION Date: September 22, 2020 To: National Storage Affiliates Trust 8400 East Prentice Avenue 9th Floor Greenwood Village, Colorado 80111 From: Morgan Stanley & Co. LLC 1585 Broadway, 4th Floor New York, NY 10036 Re: Registered Forward Transaction Ladies and Gentlemen: The purpose of this letter agreement is to confirm the terms and conditions of the Transact

September 25, 2020 EX-1.3

Registered Forward Confirmation, dated September 22, 2020 by and between National Storage Affiliates Trust and Citibank, N.A.

Exhibit 1.3 REGISTERED FORWARD CONFIRMATION Date: September 22, 2020 To: National Storage Affiliates Trust 8400 East Prentice Avenue 9th Floor Greenwood Village, Colorado 80111 From: Citibank, N.A. 390 Greenwich Street, 3rd Floor New York, NY 10013 Re: Registered Forward Transaction Ladies and Gentlemen: The purpose of this letter agreement is to confirm the terms and conditions of the Transaction

September 25, 2020 EX-1.1

Underwriting Agreement, dated September 22, 2020, among National Storage Affiliates Trust, NSA OP, LP, Morgan Stanley & Co. LLC and Citigroup Global Markets Inc., as the underwriters, Morgan Stanley & Co. LLC and Citibank, N.A., as forward purchasers, and Morgan Stanley & Co. LLC and Citigroup Global Markets Inc. as agent for Citibank, N.A., as forward sellers

Exhibit 1.1 4,500,000 Common Shares of Beneficial Interest National Storage Affiliates Trust UNDERWRITING AGREEMENT September 22, 2020 Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 As Representatives of the Underwriters Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 Citibank, N.A. 390 Gre

September 24, 2020 424B5

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered(1) Proposed Maximum Offering Price Per Share Proposed Maximum Aggregate Offering Price(2) Amount of Registration Fee(2) Common shares, par valu

Use these links to rapidly review the document TABLE OF CONTENTS Prospectus Supplement TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No.

September 22, 2020 424B5

Subject to completion, dated September 22, 2020

Use these links to rapidly review the document TABLE OF CONTENTS Prospectus Supplement TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No.

September 22, 2020 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 22, 2020 National Stora

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 22, 2020 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdict

August 7, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affi

August 6, 2020 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2020 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

August 6, 2020 EX-99.1

Page 1 Earnings Release 6 Consolidated Statements of Operations 7 Consolidated Balance Sheets 8 Schedule 1 - Funds From Operations and Core Funds From Operations 10 Schedule 2 - Other Non-GAAP Financial Measurements 11 Schedule 3 - Portfolio Summary

Table of Contents Page 1 Earnings Release 6 Consolidated Statements of Operations 7 Consolidated Balance Sheets 8 Schedule 1 - Funds From Operations and Core Funds From Operations 10 Schedule 2 - Other Non-GAAP Financial Measurements 11 Schedule 3 - Portfolio Summary 13 Schedule 4 - Debt and Equity Capitalization 15 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 16 Sch

May 26, 2020 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 19, 2020 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

May 13, 2020 424B7

CALCULATION OF REGISTRATION FEE

Filed Pursuant to Rule 424(b)(7) Registration No. 333-223654 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered(1) Amount to be Registered Proposed Maximum Offering Price Per Share(2) Proposed Maximum Aggregate Offering Price Amount of Registration Fee(3)(4) Common Shares of Beneficial Interest, par value $0.01 per share 9,299,706 (1) $26.825 $249,464,613.45 $32,381

May 11, 2020 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 11, 2020 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction of

May 11, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Aff

May 11, 2020 EX-99.1

Page 1 Earnings Release 6 Consolidated Statements of Operations 7 Consolidated Balance Sheets 8 Schedule 1 - Funds From Operations and Core Funds From Operations 10 Schedule 2 - Other Non-GAAP Financial Measurements 11 Schedule 3 - Portfolio Summary

Table of Contents Page 1 Earnings Release 6 Consolidated Statements of Operations 7 Consolidated Balance Sheets 8 Schedule 1 - Funds From Operations and Core Funds From Operations 10 Schedule 2 - Other Non-GAAP Financial Measurements 11 Schedule 3 - Portfolio Summary 13 Schedule 4 - Debt and Equity Capitalization 15 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 16 Sch

April 10, 2020 EX-99.1

Agreement and Plan of Merger by and among the Issuer, NSA Holding Company I, LLC, SecurCare, the Reporting Person, David Cramer and Justin Hlibichuk, each individually, and the Reporting Person, in his capacity as Security Representative, dated February 24, 2020.

Exhibit 1 AGREEMENT AND PLAN OF MERGER by and among NATIONAL STORAGE AFFILIATES TRUST, NSA HOLDING COMPANY I, LLC and SECURCARE SELF STORAGE, INC.

April 10, 2020 EX-99.6

Letter Agreement dated as September 13, 2017 by and among the Issuer, the Partnership, the Reporting Person and Morgan Stanley Private Bank, National Association.

Exhibit 6 September 13, 2017 Morgan Stanley Private Bank, National Association NSA OP, LP c/o National Storage Affiliates Trust 5200 DTC Parkway, Suite 200 Greenwood Village, CO 80111 RE: Security Interest in Class A OP Units granted by Arlen Nordhagen to Morgan Stanley Private Bank, National Association Ladies and Gentlemen: National Storage Affiliates Trust, a Maryland real estate investment tru

April 10, 2020 EX-99.3

Unit Recapitalization, Exchange and Lockup Agreement as of March 30, 2020, by and among the Partnership, the SAP Manager, SAP, the Reporting Person and Wendy P. Nordhagen, an individual.

Exhibit 3 UNIT RECAPITALIZATION, EXCHANGE AND LOCKUP AGREEMENT This Unit Recapitalization, Exchange and Lockup Agreement (this "Agreement") is made and entered into as of March 30, 2020, by and among NSA OP, LP, a Delaware limited partnership ("NSA OP"), NSA BV DR, LLC, a Delaware limited liability company ("NSA BV"), SecurCare American Portfolio, LLC, a Delaware limited liability company ("SAP"), Arlen D.

April 10, 2020 EX-99.4

Letter Agreement dated as of April 2, 2020, by and between National Storage Affiliates Trust and the Reporting Person.

Exhibit 4 Lock-up Agreement April 2, 2020 National Storage Affiliates Trust 8400 East Prentice Avenue, 9th Floor Greenwood Village, Colorado 80111 RE: Lock-up of Company Shares to be Issued in the SecurCare Merger Ladies & Gentlemen: National Storage Affiliates Trust (the “Company”) has issued to the undersigned 4,063,571 common shares of beneficial interest, par value $0.

April 10, 2020 EX-99.2

Agreement and Plan of Merger by and among the Issuer, NSA Holding Company II, LLC, DLAN, Lamb Family Trust of 4/12/1982, and Wendy P. Nordhagen, individually, dated February 24, 2020.

Exhibit 2 AGREEMENT AND PLAN OF MERGER by and among NATIONAL STORAGE AFFILIATES TRUST, NSA HOLDING COMPANY II, LLC DLAN CORPORATION, LAMB FAMILY TRUST OF 4/12/1982, and WENDY P.

April 10, 2020 EX-99.5

Financial Assets Security Agreement dated as of September 13, 2017, by and between the Reporting Person and Morgan Stanley Private Bank, National Association.

Exhibit 5 FINANCIAL ASSETS SECURITY AGREEMENT (For Demand Facilities) FINANCIAL ASSETS SECURITY AGREEMENT, dated as of September 13, 2017 (this “Agreement”), made by ARLEN NORDHAGEN, an individual (the “Grantor”), to MORGAN STANLEY PRIVATE BANK, NATIONAL ASSOCIATION, a national banking association (the “Lender” or “Secured Party”).

April 10, 2020 SC 13D

NSA.PRA / National Storage Affiliates Tr / Nordhagen Arlen Dale - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* National Storage Affiliates Trust (Name of Issuer) Common Shares of Beneficial Interest, par value $0.01 per share (Title of Class of Securities) 637870106 (CUSIP Number) Tamara Fischer 8400 East Prentice Avenue, 9th Floor Greenwood Village, Colorado 8011

April 6, 2020 EX-10.6

Letter Agreement dated as of April 2, 2020, by and between National Storage Affiliates Trust and Arlen D. Nordhagen. (Exhibit 10.6 to the Current Report on Form 8-K filed with the SEC on April 6, 2020, is incorporated herein by this reference)

Exhibit 10.6 Lock-up Agreement April 2, 2020 National Storage Affiliates Trust 8400 East Prentice Avenue, 9th Floor Greenwood Village, Colorado 80111 RE: Lock-up of Company Shares to be Issued in the SecurCare Merger Ladies & Gentlemen: National Storage Affiliates Trust (the “Company”) has issued to the undersigned 4,063,571 common shares of beneficial interest, par value $0.01 per shares (“Shares

April 6, 2020 DEFA14A

NSA / National Storage Affiliates Trust DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confide

April 6, 2020 EX-10.7

Letter Agreement dated as of April 2, 2020, by and between National Storage Affiliates Trust and David Cramer. (Exhibit 10.7 to the Current Report on Form 8-K filed with the SEC on April 6, 2020, is incorporated herein by this reference)

Exhibit 10.7 Lock-up Agreement April 2, 2020 National Storage Affiliates Trust 8400 East Prentice Avenue, 9th Floor Greenwood Village, Colorado 80111 RE: Lock-up of Company Shares to be Issued in the SecurCare Merger Ladies & Gentlemen: National Storage Affiliates Trust (the “Company”) has issued to the undersigned 1,858,737 common shares of beneficial interest, par value $0.01 per shares (“Shares

April 6, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 31, 2020 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdiction

April 6, 2020 EX-10.4

Amended and Restated Employment Agreement, effective as of January 1, 2020, by and between National Storage Affiliates Trust and Tamara D. Fischer (Exhibit 10.4 to the Current Report on Form 8-K filed with the SEC on April 6, 2020, is incorporated herein by this reference)

Exhibit 10.4 AMENDED AND RESTATED EMPLOYMENT AGREEMENT This AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this "Agreement") is dated as of April 1, 2020, by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and Tamara D. Fischer, residing at the address set forth in the Company’s records (the "Executive"). WHEREAS, the Executive previously entered

April 6, 2020 EX-10.3

Amended and Restated Employment Agreement, effective as of January 1, 2020, by and between National Storage Affiliates Trust and Arlen D. Nordhagen (Exhibit 10.3 to the Current Report on Form 8-K filed with the SEC on April 6, 2020, is incorporated herein by this reference)

Exhibit 10.3 AMENDED AND RESTATED EMPLOYMENT AGREEMENT This AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this "Agreement") is dated as of April 1, 2020, by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and Arlen D. Nordhagen, residing at the address set forth in the Company’s records (the "Executive"). WHEREAS, the Executive previously entere

April 6, 2020 EX-10.1

Employment Agreement, dated as of April 1, 2020, by and between National Storage Affiliates Trust and David Cramer (Exhibit 10.1 to the Current Report on Form 8-K filed with the SEC on April 6, 2020, is incorporated herein by this reference)

Exhibit 10.1 EMPLOYMENT AGREEMENT This EMPLOYMENT AGREEMENT (this "Agreement") is dated as of April 1, 2020 by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and David Cramer, residing at the address set forth in the Company’s records (the "Executive"). WHEREAS, the Company wishes to offer the Executive employment in the position of Chief Op

April 6, 2020 EX-10.2

Separation Agreement, dated as of March 31, 2020 by and between National Storage Affiliates Trust and Steven B. Treadwell

Exhibit 10.2 March 31, 2020 Steven B. Treadwell 12173 S. Tallkid Court Parker, CO 80138 Separation Agreement Dear Steve: Thank you for your service to National Storage Affiliates Trust (the "Company"). The terms of your employment have been governed by the employment agreement dated as of April 28, 2015 (as amended on March 29, 2018) entered into by you and the Company (the "Employment Agreement")

April 6, 2020 DEF 14A

Definitive Proxy Statement on Schedule 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confide

April 6, 2020 EX-10.5

Amended and Restated Employment Agreement, effective as of January 1, 2020, by and between National Storage Affiliates Trust and Brandon S. Togashi (Exhibit 10.5 to the Current Report on Form 8-K filed with the SEC on April 6, 2020, is incorporated herein by this reference)

Exhibit 10.5 AMENDED AND RESTATED EMPLOYMENT AGREEMENT This AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this "Agreement") is dated as of April 1, 2020 by and between National Storage Affiliates Trust, a Maryland real estate investment trust (the "Company"), and Brandon Togashi, residing at the address set forth in the Company’s records (the "Executive"). WHEREAS, the Executive previously entered in

February 28, 2020 EX-99.1

U.S. FEDERAL INCOME TAX CONSIDERATIONS

Exhibit 99.1 U.S. FEDERAL INCOME TAX CONSIDERATIONS The following is a summary of certain U.S. federal income tax consequences relating to our qualification and taxation as a real estate investment trust for U.S. federal income tax purposes ("REIT") and the acquisition, holding, and disposition of our common shares and our 6.000% Series A Cumulative Redeemable Preferred Shares of Beneficial Intere

February 28, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 27, 2020 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

February 26, 2020 EX-21.1

List of subsidiaries of National Storage Affiliates Trust

Exhibit 21.1 Subsidiaries Subsidiary d/b/a Jurisdiction 2016 JV Property Holdings, LLC Delaware 2016 MHC, LLC Delaware All Stor Asheville, LLC Delaware All Stor Carolina Beach, LLC Delaware All Stor Durham, LLC Delaware All Stor Indian Trail, LLC Delaware All Stor MH Delaware All Stor NC, LLC Delaware All Stor Prospect, LLC Delaware All Stor Swansboro, LLC Delaware All Stor Swansboro II, LLC Delaw

February 26, 2020 EX-4.3

Description of Common Shares of Beneficial Interest and 6.000% Series A Cumulative Redeemable Preferred Shares of Beneficial Interest (Exhibit 4.3 to the Annual Report on Form 10-K, filed with the SEC on February 26, 2020, is incorporated herein by this reference)

Exhibit 4.3 Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 Unless otherwise specified or the context requires otherwise, the terms “company,” “we,” “us” and “our” refer to National Storage Affiliates Trust, a Maryland real estate investment trust, together with its subsidiaries. The following summary of the material terms of our

February 26, 2020 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affiliat

February 24, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 24, 2020 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

February 24, 2020 EX-99.1

Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

February 24, 2020 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 24, 2020 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

February 24, 2020 EX-10.1

Agreement and Plan of Merger by and among National Storage Affiliates Trust, NSA Holding Company I, LLC, SecurCare Self Storage, Inc., Arlen D. Nordhagen, David Cramer and Justin Hlibichuk, each individually, and Arlen Nordhagen, in his capacity as Security Representative, dated February 24, 2020.

Exhibit 10.1 AGREEMENT AND PLAN OF MERGER by and among NATIONAL STORAGE AFFILIATES TRUST, NSA HOLDING COMPANY I, LLC and SECURCARE SELF STORAGE, INC., ARLEN NORDHAGEN, DAVID CRAMER AND JUSTIN HLIBICHUK, each individually, and ARLEN NORDHAGEN, in his capacity as the Securityholder Representative February 24, 2020 Table of Contents Page Article I THE MERGER 3 1.01 The Merger. 3 1.02 Effect of the Me

February 13, 2020 SC 13G/A

NSA / National Storage Affiliates Trust / Howard Kevin Maxen - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* National Storage Affiliates Trust (Name of Issuer) Common Shares of Beneficial Interest, par value $0.01 per share (Title of Class of Securities) 637870106 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the

February 13, 2020 SC 13G

NSA / National Storage Affiliates Trust / Minar John - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* National Storage Affiliates Trust (Name of Issuer) Common Shares of Beneficial Interest, par value $0.01 per share (Title of Class of Securities) 637870106 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the

February 11, 2020 SC 13G/A

NSA / National Storage Affiliates Trust / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4)* Name of issuer: National Storage Affiliates Trust Title of Class of Securities: REIT CUSIP Number: 637870106 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is fi

November 22, 2019 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 20, 2019 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdicti

November 1, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage

November 1, 2019 EX-10.2

Third Amendment to Credit Agreement, dated as of July 29, 2019, by and among NSA OP, LP, as Borrower, certain Subsidiaries of the Borrower party as Guarantors, National Storage Affiliates Trust, certain lenders party thereto, and Capital One, National Association, as Administrative Agent for the Lenders

Exhibit 10.2 THIRD AMENDMENT TO CREDIT AGREEMENT This Third Amendment to Credit Agreement (this “Agreement”), dated as of July 29, 2019 (the “Third Amendment Effective Date”), is by and among NSA OP, LP, a limited partnership formed under the laws of the State of Delaware (the “Borrower”), certain Subsidiaries of the Borrower party to the Credit Agreement referred to below (collectively, the “Guar

November 1, 2019 EX-10.1

Second Amended and Restated Credit Agreement (the "Keybank Credit Agreement") dated as of July 29, 2019 by and among NSA OP, LP, as Borrower, the lenders from time to time party thereto, and KeyBank National Association, as Administrative Agent, and joined in for certain purposes by certain Subsidiaries of the Borrower and National Storage Affiliates Trust, with Keybanc Capital Markets Inc., and PNC Capital Markets LLC, as Co-Bookrunners and Co-Lead Arrangers, PNC Bank, National Association, as Syndication Agent, U.S. Bank National Association and BMO Capital Markets Corp. as Co-Lead Arrangers and Co-Documentation Agents, Wells Fargo Securities, LLC as Co-Lead Arranger, Wells Fargo Bank, National Association, as Co-Documentation Agent, and CitiBank, N.A., as Co-Lead Arranger and Co-Documentation Agent for the Revolving Credit Facility (Exhibit 10.1 to the Quarterly Report on Form 10-Q, filed with the SEC on November 1, 2019, is incorporated herein by this reference)

Exhibit 10.1 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of July 29, 2019 by and among NSA OP, LP, AS BORROWER, THE LENDERS FROM TIME TO TIME PARTY HERETO, and KEYBANK NATIONAL ASSOCIATION, as Administrative Agent, and joined in for certain purposes by certain Subsidiaries of the Borrower and NATIONAL STORAGE AFFILIATES TRUST, with KEYBANC CAPITAL MARKETS INC., as Co-Bookrunner and Co-Le

October 30, 2019 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8-K ————————— CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2019 National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001-37351 46-5053858 (State or other jurisdictio

October 30, 2019 EX-99.1

Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

August 2, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37351 National Storage Affi

August 1, 2019 EX-99.1

Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary

Table of Contents Page 1 Earnings Release 7 Consolidated Statements of Operations 8 Consolidated Balance Sheets 9 Schedule 1 - Funds From Operations and Core Funds From Operations 11 Schedule 2 - Other Non-GAAP Financial Measurements 12 Schedule 3 - Portfolio Summary 14 Schedule 4 - Debt and Equity Capitalization 16 Schedule 5 - Summarized Information for Unconsolidated Real Estate Ventures 17 Sch

August 1, 2019 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8‑K ————————— CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 1, 2019 ————————— National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001‑37351 46‑5053858 (State or other jur

August 1, 2019 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8‑K ————————— CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2019 ————————— National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001‑37351 46‑5053858 (State or other juri

June 27, 2019 8-K

Unregistered Sales of Equity Securities, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8‑K ————————— CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 21, 2019 ————————— National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001‑37351 46‑5053858 (State or other juri

May 29, 2019 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8‑K ————————— CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 23, 2019 ————————— National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001‑37351 46‑5053858 (State or other juris

May 29, 2019 8-K

Unregistered Sales of Equity Securities, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8‑K ————————— CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 28, 2019 ————————— National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001‑37351 46‑5053858 (State or other juris

May 23, 2019 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ————————— FORM 8‑K ————————— CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 23, 2019 ————————— National Storage Affiliates Trust (Exact name of registrant as specified in its charter) Maryland 001‑37351 46‑5053858 (State or other juris

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