Company: NSA-PB
Filing Date: 2025-03-28
Form Type: DEF 14A
Source: 0001628280-25-015431
Chunk: 10

Company: National Storage Affiliates Trust
Filing Date: 2025-03-28
Form: DEF 14A
Chunk 10
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 raise subjects for discussion that are not on the agenda for that meeting.

Our Board believes that its supermajority independent composition and the roles that our independent trustees perform provide effective corporate governance at the Board level and independent oversight of both our Board and management. The current governance structure, when combined with the functioning of the independent trustee component of our Board, strikes an appropriate balance between strong and consistent leadership and independent oversight of our business and affairs.

### CODE OF BUSINESS CONDUCT AND ETHICS
Our Board has adopted a Code of Business Conduct and Ethics (the "Code of Conduct") that applies to our trustees, officers and employees. Among other matters, the Code of Conduct is designed to deter wrongdoing and to promote honest and ethical conduct, including the ethical handling of actual or apparent conflicts of interest between personal and professional relationships; full, fair, accurate, timely and understandable disclosure in our SEC reports and other public communications; compliance with applicable governmental laws, rules and regulations; prompt internal reporting of violations of the Code of Conduct to appropriate persons identified in the code; and accountability for adherence to the Code of Conduct. Any waiver of the Code of Conduct for our trustees or officers may be made only by our Board or our CNCG Committee and will be promptly disclosed as required by law or stock exchange regulations. The Code of Conduct is available for viewing on the Investor Relations section of our website at www.nsastorage.com. We will also provide the Code of Conduct, free of charge, to shareholders who request it. Requests should be directed to our Investor Relations team at National Storage Affiliates Trust, 8400 East Prentice Avenue, 9th Floor, Greenwood Village, CO 80111.

| NATIONAL STORAGE AFFILIATES 2025 PROXY STATEMENT |     | 19 |

#### PERSONAL LOANS TO EXECUTIVE OFFICERS AND TRUSTEES
We comply with, and operate in a manner consistent with, applicable law prohibiting extensions of credit in the form of personal loans to or for the benefit of our trustees and executive officers.

### CORPORATE GOVERNANCE GUIDELINES
Our Board has adopted the Guidelines, which address significant issues of corporate governance and set forth procedures by which our Board carries out its responsibilities, including the trustee resignation policy as described under " – Majority Vote and Trustee Resignation Policy" below. In addition, among the areas addressed by the Guidelines are the composition of our Board, its functions and responsibilities, its standing committees, trustee qualification standards, access to management and independent advisors, trustee compensation, management