| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Patel Bhavesh V. | Director | 2801 POST OAK BLVD., HOUSTON | Bhavesh V. Patel by J. Feng POA | 24 Feb 2026 | 0001500293 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WLK | Restricted Stock Units | Award | $0 | +1,852 | $0.000000 | 1,852 | 20 Feb 2026 | Common Stock | 1,852 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock |
| F2 | All of the restricted stock units will vest on February 20, 2027. |