| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Collins Michelle T | Director | ONE OWENS CORNING PARKWAY, TOLEDO | /s/ Katherine M. Serevitch, Attorney-in-Fact | 03 Mar 2026 | 0002047429 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OC | $.01 Par Value Common | Award | $58,105 | +476 | +30% | $122.07 | 2,070 | 27 Feb 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Share portion of quarterly Director retainer/fees. |