Company: OC
Filing Date: 2025-03-14
Form Type: DEF 14A
Source: 0001370946-25-000125
Chunk: 64

Company: Owens Corning
Filing Date: 2025-03-14
Form: DEF 14A
Chunk 64
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 more information about these awards, see the Special Compensation Award Opportunities – Sandri Retention Bonus and Sandri Transaction Bonus sections above.

55

T a b l e o f C o n t e n t s

### CEO PAY RATIO
The SEC requires annual disclosure of the ratio of the median employee’s annual total compensation to the annual total compensation of the CEO. The following pay ratio disclosure is the Company’s reasonable, good faith estimate based upon the permitted methodology described below, pursuant to the SEC’s guidance under Item 402(u) of Regulation S-K:

For the 2024 CEO pay ratio disclosure analysis, we excluded all Masonite employees who became Owens Corning employees in May 2024 (approximately 10,000 people), as permitted by SEC Item 402(u) of Regulation S-K, which states employees of a newly acquired entity may be excluded from the calculation in the fiscal year in which the acquisition occurs. All acquired Masonite employees will be included in the median employee determination in 2025, the first full fiscal year following the acquisition. Apart from our acquisition of Masonite in 2024, however, we do not believe there has been a change in our employee population or in our employee compensation arrangements that would result in a significant change to our CEO pay ratio disclosure. As a result, for purposes of the 2024 CEO pay ratio disclosure, we used the same median employee as we did for both the 2022 and 2023 disclosure. The following disclosure includes the process used to identify the median employee and the assumptions used to calculate the ratio.

| PROCESS                                                                                                                                                                                                                                                                           |     | ASSUMPTIONS                                                                                                                                                                                                                                                                                                                         |     | 2024 TOTAL COMPENSATION                                                                                                                                                                                                                                                                                |
| 1.As of October 1, 2022, we employed 19,879 full and part-time active employees (excluding our CEO) at our parent company and consolidated subsidiaries (“Global Population”).                                                                                                    
 2.We excluded 661 non-U.S. employees (or 3.3% of the Global Population) from the Global Population in accordance with SEC rules*.                                                                                                                                                 
 3.After these exclusions, our adjusted Global Population was 19,218 employees.                                                                                                                                                                                                    
 4.For each employee who was included in our adjusted Global Population, we determined the employee’s total cash compensation (base salary, overtime, guaranteed compensation and bonus compensation) from our payroll system for the 12-month period ended on September 30, 2022. 
 5.Based on each employee’s total