Company: OC
Filing Date: 2025-03-14
Form Type: DEF 14A
Source: 0001370946-25-000125
Chunk: 13

Company: Owens Corning
Filing Date: 2025-03-14
Form: DEF 14A
Chunk 13
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 of the director nominees areINDEPENDENT |

| Stockholder Rights and Engagement                                                                |     |                                    |
| •All members of the Board are elected annually                                                   
 •Annual advisory vote on named executive officer compensation                                    
 •Majority vote standard in uncontested director elections with mandatory resignation requirement 
 •Robust stockholder outreach program                                                             
 •No stockholder rights plan                                                                      |     | Robust stockholderOUTREACH PROGRAM |

| Policies and Practices                                                                                                                                                                   |     |                   |
| •Clawback, anti-hedging, and anti-pledging policies                                                                                                                                      
 •Annual Board, Chair/CEO, and Committee self-evaluation process (through written assessments and interviews with the Lead Independent Director) and review of management succession plan 
 •Robust stock ownership guidelines:                                                                                                                                                      
 •Directors: 5x maximum annual cash retainer                                                                                                                                              
 •CEO: 6x base salary                                                                                                                                                                     
 •Other named executive officers: 3x base salary                                                                                                                                          
 •Overboarding policy for directors to limit membership on publicly traded company boards (including service on the Company’s Board, subject to Board review)                             
 •Employee Directors: No more than two publicly traded company boards                                                                                                                     
 •Non-Employee Directors: No more than four publicly traded company boards                                                                                                                
 •Audit Committee members: No more than two other publicly traded company audit committees                                                                                                
 •Mandatory director retirement age of 73                                                                                                                                                 
 •Global Code of Conduct for employees, officers, and directors                                                                                                                           |     | Clawback,         
 anti-hedging,     
 and anti-pledging 
 POLICIES          |

14

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

### CORPORATE GOVERNANCE GUIDELINES
Our Board has adopted Corporate Governance Guidelines that, in conjunction with our Amended and Restated Certificate of Incorporation, Bylaws, and Board committee charters, form the framework for our corporate governance. The Governance and Nominating Committee reviews the Corporate Governance Guidelines annually and makes revisions, as necessary. The Corporate Governance Guidelines are published on our website at http://www.owenscorning.com and will be made available in print upon request by any stockholder to the Corporate Secretary of the Company.

#### DIRECTOR RETIREMENT, REFRESHMENT, AND SUCCESSION
Pursuant to the Corporate Governance Guidelines, the mandatory retirement age for directors is 73. A director who has attained the age of 73 shall not be nominated for reelection at the next annual meeting of stockholders.

Under