| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Riveros Pedro | Sr. VP Global Rubber | C/O ORION ENGINEERED CARBONS LLC, 1700 CITY PLAZA DRIVE, SUITE 300, SPRING | /s/ Pedro Riveros | 23 Feb 2026 | 0001797814 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OEC | Common Shares, no par value | Tax liability | $17,061 | -2,721 | -5.2% | $6.27 | 49,984 | 19 Feb 2026 | Direct | F1 |
| transaction | OEC | Common Shares, no par value | Award | $0 | +6,988 | +14% | $0.000000 | 56,972 | 19 Feb 2026 | Direct | F2 |
| transaction | OEC | Common Shares, no par value | Tax liability | $18,697 | -2,982 | -5.2% | $6.27 | 53,990 | 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. |