| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Celano Chris Edward | Chief Operating Officer | 6608 N. WESTERN AVE, SUITE 466, NICHOLS HILLS | /s/ Udaychandra Devasper, as attorney in fact for Chris Edward Celano | 17 Jun 2025 | 0002051332 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SDST | Common Stock | Sale | -$3,670 | -6,925 | -1.69% | $0.5301 | 401,794 | 16 Jun 2025 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Represents sales to cover tax withholding obligations in connection with the vesting and settlement of Restricted Stock Units ("RSUs"). |
| F2 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at a range of $0.530017 - $0.530117, inclusive. The undersigned undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4. |