| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Jeter Frances H. | Director | 9 GREENWAY PLAZA, SUITE 110, HOUSTON | /s/ Justin M. Long, attorney-in-fact | 23 May 2025 | 0001654242 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | STEL | Common Stock | Gift | $0 | -360 | -1.3% | $0.000000 | 28,086 | 21 May 2025 | Direct |