| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Franklin Robert R Jr | Chief Executive Officer, Director | 9 GREENWAY PLAZA, SUITE 110, HOUSTON | /s/ Justin M. Long, attorney-in-fact | 05 Jan 2026 | 0001720348 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | STEL | Common Stock | Tax liability | $80,970 | -2,617 | -0.66% | $30.94 | 396,285 | 31 Dec 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Represents shares withheld to satisfy tax liability for vesting of restricted shares of Common Stock previously reported. |