| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Williams John David | Director | ONE OWENS CORNING PARKWAY, TOLEDO | /s/ Katherine M. Serevitch, Attorney-in-Fact | 13 May 2025 | 0001453133 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OC | $.01 Par Value Common | Award | $69,994 | +513 | +1% | $136.44 | 50,970 | 09 May 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Deferred share portion of quarterly Director retainer/fees. |