| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Senft Michael F | Director | 100 W AIRPORT ROAD, STILLWATER | /s/ David Kronenfeld, attorney-in-fact for Michael F. Senft | 2025-08-15 | 0001544115 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | USAR | Restricted Stock Units | Award | $0 | +18.2K | $0.00 | 18.2K | Aug 13, 2025 | Common Stock, par value $0.0001 per share | 18.2K | Direct | F1, F2 | ||
| transaction | USAR | Restricted Stock Units | Award | $0 | +12.3K | $0.00 | 12.3K | Aug 13, 2025 | Common Stock, par value $0.0001 per share | 12.3K | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | The restricted stock unit ("RSU") will fully vest on May 20, 2026. If the vesting date occurs during a closed Trading Window under the Issuer's Insider Trading Policy, then the RSUs shall vest on the first Trading Day of the next open Trading Window pursuant to the Issuer's Insider Trading Policy, subject in all cases to any applicable outside dates required to comply with applicable tax laws and the terms of the Issuer's Amended and Restated 2024 Omnibus Incentive Plan. |
| F2 | Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Issuer's common stock. |