X0508 4 2025-08-28 0001084554 LIGHTBRIDGE Corp LTBR 0001357549 GRAE SETH C/O LIGHTBRIDGE CORPORATION 11710 PLAZA AMERICA DRIVE, SUITE 2000 RESTON VA 20190 1 1 0 0 President and CEO 0 Common Stock 2025-08-28 4 A 0 72707 0 A 535193 D Common Stock 2025-08-28 4 A 0 72708 0 A 607901 D Common Stock 2025-08-28 4 A 0 72708 0 A 680609 D Common Stock 2025-08-28 4 A 0 43625 0 A 724234 D Common Stock 2025-08-28 4 A 0 29082 0 A 753316 D Employee Stock Option (right to buy) 10.8 2028-08-06 Common Stock 28216 28216 D Employee Stock Option (right to buy) 12.6 2027-10-26 Common Stock 40233 40233 D Employee Stock Option (right to buy) 18.48 2026-11-09 Common Stock 18199 18199 D Employee Stock Option (right to buy) 55.2 2025-11-20 Common Stock 17430 17430 D Represents a grant of restricted stock awards (RSAs). These RSAs vest in three equal installments on the first, second and third anniversaries of the date of grant, contingent on the reporting person's continued service on each such vesting date. Represents a grant of performance-based restricted stock awards (PSAs). These PSAs vest subject to achievement of a specified performance condition, and at the time of certification thereof, contingent on the reporting person's continued service on the certification date. PSAs that remain unvested as of December 31, 2028 (the end of the performance period) will automatically be forfeited and cancelled without consideration. This option is fully vested as of the date of this report. /s/ Larry Goldman, Attorney-in-Fact for Seth Grae 2025-08-29