| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Del Monaco Nicolas | President, Roofing | ONE OWENS CORNING PKWY, TOLEDO | /s/ Katherine M. Serevitch, Attorney-in-Fact | 27 Feb 2026 | 0001992511 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OC | $.01 Par Value Common | Award | $0 | +2,643 | +14% | $0.000000 | 21,638 | 25 Feb 2026 | Direct | F1 |
| transaction | OC | $.01 Par Value Common | Tax liability | $138,051 | -1,118 | -5.2% | $123.48 | 20,520 | 25 Feb 2026 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | Awarded in connection with the settlement of performance share units for the performance cycle ended December 31, 2025. |
| F2 | Shares withheld upon the settlement of performance share units to satisfy tax withholding obligations. |