| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| CORDEIRO EDUARDO E | Director | ONE OWENS CORNING PARKWAY, TOLEDO | /s/ Katherine M. Serevitch, Attorney-in-Fact | 2025-11-10 | 0001201087 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OC | $.01 Par Value Common | Award | $7.81K | +74.4 | +0.51% | $104.94 | 14.5K | Nov 6, 2025 | Direct | F1 |
| transaction | OC | $.01 Par Value Common | Award | $44.3K | +425 | +2.93% | $104.20 | 15K | Nov 7, 2025 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | Accrual of dividend equivalents on deferred stock units. |
| F2 | Deferred share portion of quarterly Director retainer/fees. |