Mark R. Tobin - Aug 28, 2025 Form 4 Insider Report for LIGHTBRIDGE Corp (LTBR)

Role: Director
Signature: /s/ Larry Goldman, Attorney-in-Fact for Mark R. Tobin
Stock symbol: LTBR
Transactions as of: Aug 28, 2025
Transactions value $: $0
Form type: 4
Date filed: 8/29/2025, 04:31 PM
Previous filing: Jun 4, 2025
Next filing: Sep 3, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Tobin Mark Robert	Director	C/O LIGHTBRIDGE CORPORATION, 11710 PLAZA AMERICA DRIVE, SUITE 2000, RESTON	/s/ Larry Goldman, Attorney-in-Fact for Mark R. Tobin	2025-08-29	0001641799

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	LTBR	Common Stock	Award	$0	+5K	+11.35%	$0.00	49K	Aug 28, 2025	Direct	F1
transaction	LTBR	Common Stock	Award	$0	+5K	+10.2%	$0.00	54K	Aug 28, 2025	Direct	F2
transaction	LTBR	Common Stock	Award	$0	+5K	+9.25%	$0.00	59K	Aug 28, 2025	Direct	F2
transaction	LTBR	Common Stock	Award	$0	+3K	+5.08%	$0.00	62K	Aug 28, 2025	Direct	F2
transaction	LTBR	Common Stock	Award	$0	+2K	+3.22%	$0.00	64K	Aug 28, 2025	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.
F2	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.

Content

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.