Company: NSA-PB
Filing Date: 2025-03-28
Form Type: DEF 14A
Source: 0001628280-25-015431
Chunk: 59

Company: National Storage Affiliates Trust
Filing Date: 2025-03-28
Form: DEF 14A
Chunk 59
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 for less than a full year by annualizing the compensation of those full-time and part-time employees. The annualized compensation of hourly employees was calculated based upon a 2,080 hour year for full-time employees and a 1,040 hour year for part-time employees.

• We did not make any other assumptions, adjustments or estimates with respect to total W-2 compensation and did not apply any cost of living adjustments.

To determine Mr. Cramer's annual compensation, we utilized the total compensation for 2024 as shown above in the Summary Compensation Table in "–Summary Compensation and Other Tables".

Our median employee for 2024 is one of our on-site store employees, who is paid on an hourly basis, and the pay ratio for 2024 is set forth below.

| Median of the annual total compensation of our employees (other than Mr. Cramer) |     | $ |    36,443 |          |
| Annual total compensation for Mr. Cramer                                         |     | $ | 4,799,956 |          |
| Our chief executive officer to median employee pay ratio                         |     |   |           | 132 to 1 |

### PAY VERSUS PERFORMANCE
Set forth below is a table setting forth the relationship between compensation actually paid to our NEOs, as determined pursuant to SEC rules, and the Company's financial performance during each of the years ended December 31, 2020, 2021, 2022, 2023, and 2024. Compensation actually paid as set forth below does not

| NATIONAL STORAGE AFFILIATES 2025 PROXY STATEMENT |     | 53 |

necessarily represent cash and/or equity value transferred to the applicable NEO without restriction, but rather is a value calculated under applicable SEC rules. In general, "compensation actually paid" is calculated as Summary Compensation Table total compensation adjusted to include the fair market value of equity awards as of December 31 of the applicable year or, if earlier, the vesting date (rather than the grant date). Our NEOs do not participate in a defined benefit plan so no adjustment for pension benefits is included in the table below. In addition, no adjustments were made for equity awards that were granted and vested in the same year, as no equity awards vested in the year of grant.

| Year |     | Annual Total Compensation in Summary Compensation Table for  PEO - Ms. Fischer(1) 
 TSR ($)                                                                           |           |     | Compensation Actually Paid to PEO - Ms. Fischer