| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| MUSHAKOV ANDREY | EVP, Nuclear Operations | C/O LIGHTBRIDGE CORPORATION, 11710 PLAZA AMERICA DRIVE, SUITE 2000, RESTON | /s/ Andrey Mushakov | 2025-12-05 | 0001371007 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | LTBR | Common Stock | Tax liability | -$212K | -11.9K | -2.72% | $17.79 | 427K | Dec 4, 2025 | Direct | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | LTBR | Employee Stock Option (right to buy) | 11.4K | Dec 4, 2025 | Common Stock | 11.4K | $18.48 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold. |
| F2 | This option is fully vested as of the date of this report. |