| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Beredo Gina A. | EVP, CAO & GC | ONE OWENS CORNING PARKWAY, TOLEDO | /s/ Katherine M. Serevitch, Attorney-in-Fact | 27 Feb 2026 | 0001727029 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OC | $.01 Par Value Common | Award | $0 | +7,929 | +25% | $0.000000 | 39,889 | 25 Feb 2026 | Direct | F1 |
| transaction | OC | $.01 Par Value Common | Tax liability | $436,872 | -3,538 | -8.9% | $123.48 | 36,351 | 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. |