[Form 4] Lightbridge Corp. Insider Trading Activity

Rhea-AI Filing Summary

Larry Goldman, CFO of Lightbridge Corp (LTBR), reported option exercises and a sale under a pre-established trading plan. On 08/13/2025 he exercised 13,785 employee stock options with an exercise price of $12.60 per share, resulting in 13,785 shares issued. On the same date he sold 24,334 shares at $18.00 per share pursuant to a Rule 10b5-1 trading plan adopted March 7, 2025. After these transactions his reported beneficial ownership in Lightbridge common stock is 169,277 shares. The filing also discloses additional vested options: 4,469 options at $18.48 and 5,449 options at $55.20, with exercisable and expiration dates shown in the report.

Positive

• Transactions were executed under a Rule 10b5-1 trading plan, providing a documented, pre-established framework for the trades.
• Filing discloses full details including exercise prices, sale price, quantities, and post-transaction beneficial ownership (169,277 shares).

Negative

• Reported sale of 24,334 shares on 08/13/2025 at $18.00 reduced beneficial ownership from 193,611 to 169,277 shares.
• Material insider liquidity event occurred (exercise plus sale), which decreases insider-held shares outstanding for this reporting person.

Insights

Financial Analyst

TL;DR: Insider exercised options and sold shares under a Rule 10b5-1 plan; net beneficial ownership declined to 169,277 shares.

The report documents a routine insider liquidity event: exercise of 13,785 options at $12.60 and contemporaneous sale of 24,334 shares at $18.00 on 08/13/2025 under a 10b5-1 plan adopted March 7, 2025. The filing clearly states the resulting beneficial ownership of 169,277 shares and lists other vested option tranches totaling 9,918 options across two strike prices. From an investor analysis perspective, this is a transparent disclosure of option exercise and sale activity with explicit prices and quantities; it does not include any forward guidance or other company performance data.

Corporate Governance Expert

TL;DR: Disclosure complies with Section 16 reporting and cites a pre-established 10b5-1 plan for the transactions.

The Form 4 is properly signed and indicates the transactions were effected pursuant to a Rule 10b5-1 trading plan adopted March 7, 2025, which the reporting person cites in the explanation. The filing identifies the reporting person as the CFO and shows individual filing status. It also notes that one option reported is fully vested as of the report date. The form contains required details: transaction dates, codes, amounts, prices, and post-transaction ownership, supporting governance transparency.

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^*

GOLDMAN LARRY

(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)
	CFO

3. Date of Earliest Transaction (Month/Day/Year)
08/13/2025

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	08/13/2025		M		13,785(1)	A	$12.6	193,611	D
Common Stock	08/13/2025		S		24,334(1)	D	$18	169,277	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)	$12.6	08/13/2025		M			13,785(1)	(2)	10/26/2027	Common Stock	13,785	$0	0	D
Employee Stock Option (right to buy)	$18.48							(2)	11/09/2026	Common Stock	4,469		4,469	D
Employee Stock Option (right to buy)	$55.2							(2)	11/20/2025	Common Stock	5,449		5,449	D

Explanation of Responses:

1. The reported exercise of 13,785 employee stock options and sale of 24,334 shares of common stock were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 7, 2025.

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

	/s/ Larry Goldman	08/15/2025
	** 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 LTBR CFO Larry Goldman report on Form 4?

He reported exercising 13,785 options at $12.60 and selling 24,334 shares at $18.00 on 08/13/2025, with the transactions effected under a Rule 10b5-1 plan.

How many LTBR shares does Larry Goldman beneficially own after the transactions?

169,277 shares of Lightbridge common stock are reported as beneficially owned following the 08/13/2025 transactions.

Were the trades part of a pre-arranged plan?

Yes. The Form 4 states the exercise and sale were effected pursuant to a Rule 10b5-1 trading plan adopted on March 7, 2025.

What option positions remain disclosed in the filing?

Two additional vested option tranches are listed: 4,469 options at a $18.48 strike (exercisable 11/09/2026) and 5,449 options at a $55.20 strike (exercisable 11/20/2025).

When were the reported transactions executed?

08/13/2025 is the transaction date for both the option exercise and the share sale.