| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Olson Eric K. | President and CEO, Director | 1885 WEST 2100 SOUTH, SALT LAKE CITY, | /s/ Kevin Ontiveros, by power of attorney | 21 Oct 2025 | 0001598504 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SINT | Common Stock | Purchase | $19,720 | +5,800 | +23% | $3.40 | 30,775 | 20 Oct 2025 | Direct |