LTBR insider Mushakov reports 6,730-share tax withholding, options

Rhea-AI Filing Summary

Lightbridge Corp (LTBR) executive vice president of Nuclear Operations Andrey Mushakov reported an insider equity transaction. On 11/20/2025, 6,730 shares of Lightbridge common stock were withheld at $14.53 per share to cover taxes upon vesting of restricted stock awards, and no shares were sold into the market. After this withholding, Mushakov beneficially owns 388,969 shares of common stock directly. He also holds a fully vested employee stock option to buy 11,351 shares of common stock at an exercise price of $18.48 per share, which expires on 11/09/2026.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MUSHAKOV ANDREY

(Last) (First) (Middle)

C/O LIGHTBRIDGE CORPORATION

11710 PLAZA AMERICA DRIVE, SUITE 2000

(Street)

RESTON VA 20190

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
LIGHTBRIDGE Corp [ LTBR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Nuclear Operations

3. Date of Earliest Transaction (Month/Day/Year)
11/20/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/20/2025		F		6,730(1)	D	$14.53	388,969	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (right to buy)	$18.48							(2)	11/09/2026	Common Stock	11,351		11,351	D

Explanation of Responses:

1. Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.

2. This option is fully vested as of the date of this report.

	/s/ Andrey Mushakov	11/21/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transaction did Lightbridge (LTBR) disclose for Andrey Mushakov?

Lightbridge reported that EVP Nuclear Operations Andrey Mushakov had 6,730 shares of common stock withheld on 11/20/2025 to cover taxes upon vesting of restricted stock awards, at a price of $14.53 per share.

Did the Lightbridge (LTBR) executive actually sell any shares in this Form 4?

No shares were sold. The Form 4 explains that the 6,730 shares were withheld to cover taxes upon vesting of restricted stock awards, and explicitly states that no shares were sold.

How many Lightbridge (LTBR) shares does Andrey Mushakov own after the reported transaction?

Following the tax withholding transaction, Andrey Mushakov beneficially owns 388,969 shares of Lightbridge common stock in direct ownership.

What stock options does the Lightbridge (LTBR) EVP hold according to this filing?

The executive holds an employee stock option to buy 11,351 shares of Lightbridge common stock at an exercise price of $18.48 per share. This option is stated to be fully vested as of the report date and carries an expiration date of 11/09/2026.

What is the role of the reporting person in Lightbridge (LTBR)?

The reporting person, Andrey Mushakov, is identified as an Officer of Lightbridge with the title EVP, Nuclear Operations.

Is the Form 4 for Lightbridge (LTBR) filed by one or multiple reporting persons?

The document indicates that it is a Form filed by one reporting person, referring only to Andrey Mushakov.