| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Painter Corning F. | Chief Executive Officer, Director | C/O ORION ENGINEERED CARBONS LLC, 1700 CITY PLAZA DRIVE, SUITE 300, SPRING | /s/ Corning F. Painter | 23 Feb 2026 | 0001519239 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OEC | Common Shares, no par value | Tax liability | $149,157 | -23,789 | -2.2% | $6.27 | 1,060,586 | 19 Feb 2026 | Direct | F1 |
| transaction | OEC | Common Shares, no par value | Award | $0 | +83,515 | +8.1% | $0.000000 | 1,114,101 | 19 Feb 2026 | Direct | F2 |
| transaction | OEC | Common Shares, no par value | Tax liability | $200,057 | -31,907 | -2.9% | $6.27 | 1,082,194 | 19 Feb 2026 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | Shares withheld by the Issuer to satisfy tax withholding requirements on vesting of restricted stock units. |
| F2 | Represents the vesting and settlement of performance-based restricted stock units in shares of common stock following the satisfaction of certain performance criteria. |
| F3 | Shares withheld by the Issuer to satisfy tax withholding requirements on vesting of performance-based restricted stock units. |