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 Affiliates Trust (Exact name of Registrant as specified in its charter) Maryland 46-5053858 (State or other jurisdiction ...

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 Schedule 6 - Same Store Performance Summary By MSA 22 Schedule 7 - Same Store Operating Data - Trailing Five Quart ...

National Storage Affiliates Trust (NYSE:NSA) Q3 2023 Earnings Conference Call November 2, 2023 1:00 PM ET Company Participants George Hoglund - VP, IR Dave Cramer - President and CEO Brandon Togashi - CFO Conference Call Participants Michael Goldsmith - UBS Juan Sanabria - BMO Capital Markets Smedes Rose - Citi Jeff Spector - Bank of America Samir Khanal - Evercore ISI Todd Thomas - KeyBanc Capital Markets Keegan Carl - Wolfe Research Spenser Allaway - Green Street Ron Kamdem - Morgan Stanley Eric Luebchow ...

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 Affiliates Trust (Exact name of Registrant as specified in its charter) Maryland 46-5053858 (State or other jur ...

National Storage Affiliates Trust (NYSE:NSA) Q2 2023 Earnings Conference Call August 8, 2023 1:00 PM ET Company Participants George Hoglund - VP, IR Dave Cramer - President and CEO Brandon Togashi - CFO Conference Call Participants Michael Goldsmith - UBS Jeff Spector - Bank of America Smedes Rose - Citi Robin Haneland - BMO Capital Markets Steve Sakwa - Evercore ISI Keegan Carl - Wolfe Research Eric Luebchow - Wells Fargo Wes Golladay - Baird Ronald Kamdem - Morgan Stanley Operator Greetings, and welcome t ...

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 Affiliates Trust (Exact name of Registrant as specified in its charter) Maryland 46-5053858 (State or other jurisdic ...

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 Affiliates Trust (Exact name of Registrant as specified in its charter) Maryland 46-5053858 (State or other jurisdi ...

National Storage Affiliates Trust (NYSE:NSA) Q1 2023 Results Conference Call May 2, 2023 1:00 PM ET Company Participants George Hoglund - VP, IR Tamara Fischer - Executive Chair Dave Cramer - President and CEO Brandon Togashi - CFO Conference Call Participants Michael Goldsmith - UBS Juan Sanabria - BMO Capital Markets Jeff Spector - Bank of America Samir Khanal - Evercore ISI Keegan Carl - Wolfe Research Spenser Allaway - Green Street Ki Bin Kim - Truist Securities Smedes Rose - Citi Ronald Kamdem - Morgan ...

National Storage Affiliates Trust (NYSE:NSA) Q4 2022 Earnings Conference Call February 28, 2023 1:00 PM ET Company Participants George Hoglund - Vice President of Investor Relations Tamara Fischer - Chief Executive Officer Brandon Togashi - Chief Financial Officer Dave Bergeon - SVP, Operations Conference Call Participants Juan Sanabria - BMO Capital Markets Smedes Rose - Citi Todd Thomas - KeyBanc Michael Goldsmith - UBS Ronald Kamdem - Morgan Stanley Wesley Golladay - Robert W. Baird Operator Greeti ...

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 Affiliates Trust (Exact name of Registrant as specified in its charter) Maryland 46-5053858 (State or other jurisdiction ...