Company: COST
Filing Date: 2025-12-04
Form Type: DEF 14A
Source: 0000909832-25-000159
Chunk: 42

Company: COSTCO WHOLESALE CORP /NEW
Filing Date: 2025-12-04
Form: DEF 14A
Chunk 42
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. employees’ compensation was converted to U.S. dollars using an average exchange-rate for the year to date period. The median employee in the considered population had a total compensation of $49,186.

Ratio

The CEO's tota l compensation as shown in the Summary Compensation Table was $13,932,597. Based upon the estimates, assumptions, and methodology described above, the pay ratio is 283:1. This ratio may not be comparable to that reported by other companies due to differences in industries, scope of international operations, business models and scale, as well as the differences in estimates, assumptions, and methodologies.

Supplemental Ratio

Approximately 37% of the “considered population” were part-time, seasonal or temporary workers, which significantly impacts the ratio shown above. We believe it is appropriate to present a supplemental calculation using the same methodology as above except that it includes only workers who are full-time. Using this methodology, the median employee has a total compensation of $66,262, resulting in a pay ratio of 210:1.

### PAY VERSUS PERFORMANCE
As required by Item 402(v) of Regulation S-K, this section describes the relationship between compensation actually paid and certain financial performance measures of the Company. For information about the philosophy, objectives and criteria of executive pay as they pertain to the Company's performance, refer to the Compensation Discussion and Analysis section.

| Year    |     |                    |     | Summary Compensation Table Total for PEO($)1 |     | Summary Compensation Table Total for Former PEO($)1 |     | Compensation Actually Paid to PEO($)1,2 |     | Compensation Actually Paid to Former PEO($)1,2 |     | Average Summary Compensation Table Total for Non-PEO NEOs($)1 |     | Average Compensation Actually Paid to Non-PEO NEOs($)1,2 |     | Value of Initial Fixed $100 Investment Based On: |     |        |     | Net Income($)5 
  (in millions) |     | Net Sales Adjusted for Changes in Foreign Currencies($)6 
                                            (in millions) |
| TSR($)3 |     | Peer Group TSR($)4 |     |                                              |     |                                                     |     |                                         |     |                                                |     |                                                               |     |                                                          |     |                                                  |     |        |     |                |     |                                                          |
| 2025    |     |                    |     |                                   13,932,597 |     |                                                   — |     |