Lightbridge (LTBR) EVP trims holdings with 30,289-share 10b5-1 stock sale

Rhea-AI Filing Summary

Lightbridge Corporation executive Andrey Mushakov, EVP of Nuclear Operations, reported planned sales of company stock. On January 29, 2026, he sold an aggregate of 30,289 shares of Lightbridge common stock under a Rule 10b5-1 trading plan adopted on September 30, 2025.

The sales occurred in three transactions at weighted average prices of $17.475 for 2,533 shares, $16.544 for 24,929 shares, and $16.033 for 2,827 shares, leaving him with 389,082 shares of common stock held directly. He also holds a fully vested employee stock option for 11,351 shares at an exercise price of $18.48, expiring on November 9, 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).

X

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)
01/29/2026

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	01/29/2026		S		2,533(1)	D	$17.475(2)	416,838	D
Common Stock	01/29/2026		S		24,929(1)	D	$16.544(3)	391,909	D
Common Stock	01/29/2026		S		2,827(1)	D	$16.033(4)	389,082	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							(5)	11/09/2026	Common Stock	11,351		11,351	D

Explanation of Responses:

1. The reported sale of an aggregate of 30,289 shares of common stock were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 30, 2025.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.13 to $18.12, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.12 to $17.115, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.9076 to $16.1108, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

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

	/s/ Andrey Mushakov	01/30/2026
	** 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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** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

How many Lightbridge (LTBR) shares did EVP Andrey Mushakov sell?

Andrey Mushakov sold a total of 30,289 Lightbridge common shares. The transactions on January 29, 2026 covered 2,533 shares, 24,929 shares, and 2,827 shares, all reported as open market sales under a pre-established Rule 10b5-1 trading plan.

On what date did Andrey Mushakov’s reported Lightbridge (LTBR) stock sales occur?

The reported Lightbridge stock sales occurred on January 29, 2026. All three transactions in common stock took place on that date, as disclosed in the Form 4, and were executed pursuant to a Rule 10b5-1 trading plan adopted in September 2025.

What prices were received for the Lightbridge (LTBR) shares sold by Andrey Mushakov?

The reported weighted average prices were $17.475, $16.544, and $16.033 per share. Footnotes state each price reflects multiple trades within ranges, including $17.13–$18.12, $16.12–$17.115, and $15.9076–$16.1108, with full trade-by-trade details available on request.

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

After the reported sales, Andrey Mushakov directly owns 389,082 Lightbridge shares. The Form 4 shows his beneficial ownership declining during the sequence of transactions, ending at 389,082 common shares held with direct ownership form indicated as “D.”

Were Andrey Mushakov’s Lightbridge (LTBR) stock sales under a Rule 10b5-1 plan?

Yes, the sales were executed under a Rule 10b5-1 trading plan. A footnote explains the aggregate 30,289-share sale was effected pursuant to a Rule 10b5-1 plan that he adopted on September 30, 2025, providing pre-arranged trading instructions.

What stock options for Lightbridge (LTBR) does Andrey Mushakov hold?

He holds an employee stock option for 11,351 Lightbridge shares. The option has an exercise price of $18.48 per share, is fully vested as of the report date, and carries an expiration date of November 9, 2026, with direct ownership reported.