Company: OC
Filing Date: 2025-03-14
Form Type: DEF 14A
Source: 0001370946-25-000125
Chunk: 81

Company: Owens Corning
Filing Date: 2025-03-14
Form: DEF 14A
Chunk 81
---
 equity award exchange ratio on the date of acquisition. Future equity-based awards to Company employees who were former Masonite employees may be granted from the remaining available shares under the 2021 Masonite Stock Plan.

(3) RSUs and PSUs are not taken into account in the weighted-average exercise price as such awards have no exercise price.

(4) All of these shares may be issued with respect to award vehicles other than just stock options, stock appreciation rights, or other rights to acquire shares.

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#### PROPOSAL 2

### RATIFICATION OF THE SELECTION OF OUR INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
The Audit Committee of the Board has selected PricewaterhouseCoopers LLP to serve as our independent registered public accounting firm for 2025, subject to ratification by our stockholders.

Representatives of PricewaterhouseCoopers LLP will be present at the Annual Meeting and available to respond to appropriate questions presented in advance of the Annual Meeting. The representatives will also have the opportunity to make a statement if they desire to do so.

We are asking our stockholders to ratify the Audit Committee’s selection of PricewaterhouseCoopers LLP as our independent registered public accounting firm for 2025. Although ratification is not required by our Bylaws or otherwise, the Board has submitted the selection of PricewaterhouseCoopers LLP to our stockholders for ratification because we value our stockholders’ views on the Company’s independent registered public accounting firm and as a matter of good corporate governance practice. In the event that our stockholders fail to ratify the selection, it will be considered a direction to the Board and the Audit Committee to consider the selection of a different firm. Even if the selection is ratified, the Audit Committee, in its discretion may select a different independent public accounting firm at any time during the year if it determines that such a change would be in the best interests of the Company and our stockholders.

<div align='center'>RECOMMENDATION REGARDING PROPOSAL 2:</div>

| ü |     | The Board of Directors and the Audit Committee recommend you vote“FOR”the ratification of the selection of PricewaterhouseCoopers LLP as our independent registered public accounting firm for 2025. |

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#### PROPOSAL 3
<div align='center'>APPROVAL,