| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Collins Michelle T | Director | ONE OWENS CORNING PARKWAY, TOLEDO | /s/ Katherine M. Serevitch, Attorney-in-Fact | 10 Nov 2025 | 0002047429 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OC | $.01 Par Value Common | Award | $52,517 | +504 | +46% | $104.20 | 1,594 | 07 Nov 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Share portion of quarterly Director retainer/fees. |