| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| BURNS ROLAND O | President & CFO, Director | 5300 TOWN & COUNTRY BLVD., SUITE 500, FRISCO | /s/ Roland O. Burns | 31 Dec 2025 | 0001232893 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CRK | Common Stock | Gift | $621,920 | -26,000 | -1.9% | $23.92 | 1,360,585 | 29 Dec 2025 | Direct |