Lightbridge CFO has 7,139 shares withheld for taxes

LIGHTBRIDGE Corp (LTBR) reported that CFO Larry Goldman had 7,139 shares of common stock withheld on 2026-08-28 at $7.55 per share to cover taxes upon vesting of restricted stock awards; the footnote states no shares were sold.

Rhea-AI Filing Summary

LIGHTBRIDGE Corp (LTBR) reported that CFO Larry Goldman had 7,139 shares of common stock withheld on 2026-08-28 at $7.55 per share to cover taxes upon vesting of restricted stock awards; the footnote states no shares were sold. Following this tax-withholding event, he directly holds 377,688 common shares and a fully vested employee stock option covering 4,469 shares at an exercise price of $18.48 expiring on 2026-11-09.

Insider Trade Summary

Tax Withholding: 7,139 shares

Tax Withholding 2 txns

Insider GOLDMAN LARRY

Role CFO

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	7,139	$7.55	$54K
holding	Employee Stock Option (right to buy) F2	--	--	--

Holdings After Transaction: Common Stock — 377,688 shares (Direct); Employee Stock Option (right to buy) — 4,469 contracts (Direct)

Footnotes (2)

1. F1. Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.
2. F2. This option is fully vested as of the date of this report.

Key Figures

Shares withheld for tax: 7,139 shares Withholding price per share: $7.55 per share Shares held after transaction: 377,688 shares +3 more

6 metrics

Shares withheld for tax 7,139 shares Common stock withheld on 2026-08-28 to cover taxes on vested restricted stock awards

Withholding price per share $7.55 per share Value used for the 7,139 LTBR shares withheld for taxes

Shares held after transaction 377,688 shares Total direct common stock holdings of Larry Goldman following the withholding

Option underlying shares 4,469 shares Common shares underlying fully vested employee stock option

Option exercise price $18.48 per share Exercise price of the employee stock option held by Larry Goldman

Option expiration date 2026-11-09 Expiration date of the employee stock option on LTBR common stock

Key Terms

restricted stock awards, Employee Stock Option (right to buy), fully vested, Form 4, +1 more

5 terms

restricted stock awards financial

"Shares withheld to cover taxes upon vesting of restricted stock awards."

Restricted stock awards are company shares given to employees or executives that cannot be sold or transferred until certain conditions — like staying with the company for a set time or meeting performance targets — are met, like a gift that is locked in a safe until rules are satisfied. Investors care because these awards tie management’s pay to company performance, can increase the number of shares outstanding when they become tradable (dilution), and may signal expected future selling pressure or commitment to long-term growth.

Employee Stock Option (right to buy) financial

"security_title: Employee Stock Option (right to buy)"

fully vested financial

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

Form 4 financial

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

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

tax liability financial

"Payment of tax liability by delivering or withholding securities"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did LTBR CFO Larry Goldman report on this Form 4?

Larry Goldman reported that 7,139 shares of LIGHTBRIDGE Corp common stock were withheld on 2026-08-28 at $7.55 per share to cover taxes upon vesting of restricted stock awards. The filing states that no shares were sold in the market.

How many LTBR shares does CFO Larry Goldman hold after the reported transaction?

After the tax-withholding event, Larry Goldman directly holds 377,688 shares of LIGHTBRIDGE Corp common stock. This figure is reported as his total direct holdings following the 7,139 shares withheld to satisfy tax obligations on vested restricted stock awards.

What price was used for the LTBR shares withheld for taxes on Larry Goldman’s Form 4?

The LTBR shares withheld to cover Larry Goldman’s tax liability were valued at $7.55 per share. In total, 7,139 shares of common stock were withheld at this price upon the vesting of his restricted stock awards, with no market sale reported.

Does Larry Goldman have any outstanding LTBR stock options according to this Form 4?

Yes. Larry Goldman holds a fully vested Employee Stock Option for 4,469 underlying shares of LIGHTBRIDGE Corp common stock with an exercise price of $18.48 per share. The option is reported to expire on 2026-11-09.

Was Larry Goldman’s LTBR Form 4 transaction executed under a Rule 10b5-1 plan?

No. The filing’s Rule 10b5-1 checkbox is shown as false, indicating the transaction was not affirmed as being made pursuant to a Rule 10b5-1 trading plan. The reported event is a tax-withholding related to vesting restricted stock awards.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/28/2026 - 04:16 PM EDT Accepted by SEC EDGAR 08/28/2026 - 04:15 PM EDT Learn about SEC filing dates

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).

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 VIRGINIA 20190

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/28/2026

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

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

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

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	08/28/2026		F		7,139(1)	D	$7.55	377,688	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	4,469		4,469	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/ Larry Goldman	08/28/2026
	** 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.
* Form 4: SEC 1474 (03-26)