| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Jeter Frances H. | Director | 9 GREENWAY PLAZA, SUITE 110, HOUSTON | /s/ Justin M. Long, attorney-in-fact | 10 Jun 2025 | 0001654242 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | STEL | Common Stock | Award | $0 | +2,230 | +7.9% | $0.000000 | 30,316 | 06 Jun 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Represents restricted shares of Common Stock that will vest on May 1, 2026, subject to continued service as a director of the issuer on such date. |