| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Lonergan Edward F | Director | ONE OWENS CORNING PARKWAY, TOLEDO | /s/ Katherine M. Serevitch, Attorney-in-Fact | 10 Nov 2025 | 0001559697 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OC | $.01 Par Value Common | Award | $33,690 | +321 | +0.63% | $104.94 | 51,146 | 06 Nov 2025 | Direct | F1 |
| transaction | OC | $.01 Par Value Common | Award | $82,526 | +792 | +1.5% | $104.20 | 51,938 | 07 Nov 2025 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | Accrual of dividend equivalents on deferred stock units. |
| F2 | Deferred share portion of quarterly Director retainer/fees. |