| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| FESTA ALFRED E | Director | ONE OWENS CORNING PARKWAY, TOLEDO | /s/ Katherine M. Serevitch, Attorney-in-Fact | 23 Jan 2026 | 0001270744 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OC | $.01 Par Value Common | Award | $9,432 | +76 | +0.63% | $124.68 | 12,015 | 21 Jan 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Accrual of dividend equivalents on deferred stock units. |