[Form 4] Lightbridge Corp. Insider Trading Activity

Rhea-AI Filing Summary

Lightbridge Corp (LTBR) director Mark R. Tobin reported a sale of 3,000 common shares on 09/02/2025 pursuant to a Rule 10b5-1 trading plan adopted January 13, 2025. The shares were sold in multiple transactions at prices ranging from $14.0287 to $14.575, producing a weighted average price of $14.21 per share. After the reported sales, the filing shows the reporting person beneficially owns 61,038 shares. The Form 4 was signed by an attorney-in-fact, Larry Goldman, on 09/03/2025. The filer offers to provide transaction-level price details on request.

Positive

• Sale executed under a Rule 10b5-1 plan, indicating pre-established, compliant insider trading procedures
• Weighted average price disclosed ($14.21) with the range of execution prices provided for transparency
• Reporting person retains 61,038 shares after the transaction, showing continued ownership

Negative

• Insider sold 3,000 shares, which could be interpreted as insider liquidity though not necessarily material
• Form executed by attorney-in-fact rather than the reporting person, which may prompt requests for verification details

Insights

Securities Analyst

TL;DR: Routine insider sale under a pre-established 10b5-1 plan; does not by itself indicate material company change.

The filing documents a director-initiated disposition of 3,000 common shares executed under a 10b5-1 plan adopted January 13, 2025. Use of a 10b5-1 plan typically signals pre-planned, rule-compliant selling activity rather than opportunistic insider timing. The transaction size relative to the remaining 61,038 shares held is measurable but not large enough alone to imply a shift in control or trigger material market impact. Investors should view this as a disclosure of insider liquidity activity rather than an operational or financial development.

Corporate Governance Expert

TL;DR: Governance procedure followed appropriately; disclosure provides weighted-average pricing and willingness to supply detailed execution prices.

The Form 4 clearly states the sale was effected pursuant to a Rule 10b5-1 trading plan and supplies a weighted average sale price with the range of execution prices. The signatory is an attorney-in-fact, and the filer affirms readiness to provide granular price-by-trade details on request, which supports transparency. This filing reflects adherence to insider trading governance and SEC reporting requirements.

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

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Tobin Mark Robert

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/02/2025

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	09/02/2025		S		3,000(1)	D	$14.21(2)	61,038	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

Explanation of Responses:

1. The reported sale of 3,000 shares of common stock were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on January 13, 2025.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.0287 to $14.575, 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.

	/s/ Larry Goldman, Attorney-in-Fact for Mark R. Tobin	09/03/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Mark R. Tobin report on Form 4 for LTBR?

He reported a sale of 3,000 common shares on 09/02/2025 under a Rule 10b5-1 plan.

At what price were the LTBR shares sold?

The filing reports a weighted average price of $14.21 per share, with execution prices ranging from $14.0287 to $14.575.

How many LTBR shares does the reporting person own after the sale?

The Form 4 shows 61,038 shares beneficially owned following the reported transactions.

When was the 10b5-1 plan adopted for these LTBR trades?

The trading plan was adopted on January 13, 2025, per the Form 4 explanation.

Who signed the Form 4 for the reporting person?

The Form 4 was signed by Larry Goldman, Attorney-in-Fact, on 09/03/2025.