Lightbridge (LTBR) COO's 6,817-share tax withholding explained
Rhea-AI Filing Summary
LIGHTBRIDGE Corp (LTBR) executive Andrey Mushakov, EVP & Chief Operating Officer, reported a Form 4 showing 6,817 shares of common stock withheld on 2026-08-28 to pay tax liability upon vesting of restricted stock awards at a price of $7.55 per share; no shares were sold. Following this tax-withholding transaction, he directly holds 457,668 common shares and a fully vested employee stock option covering 11,351 shares at an exercise price of $18.48 per share, expiring on 2026-11-09.
Positive
- None.
Negative
- None.
Insider Trade Summary
Net Seller: 6,817 shares
Net Sell
2 txns
Insider
MUSHAKOV ANDREY
Role
EVP & Chief Operating Officer
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Tax Withholding | Common Stock F1 | 6,817 | $7.55 | $51K |
| holding | Employee Stock Option (right to buy) F2 | -- | -- | -- |
Holdings After Transaction:
Common Stock — 457,668 shares (Direct);
Employee Stock Option (right to buy) — 11,351 shares (Direct)
Footnotes (2)
- F1. Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.
- F2. This option is fully vested as of the date of this report.
Key Figures
Shares withheld for taxes: 6,817 shares of Common Stock
Tax withholding price: $7.55 per share
Common shares held after transaction: 457,668 shares
+4 more
7 metrics
Shares withheld for taxes
6,817 shares of Common Stock
Withheld on 2026-08-28 to cover tax liability upon vesting of restricted stock awards
Tax withholding price
$7.55 per share
Price used for 6,817 shares withheld to cover tax liability
Common shares held after transaction
457,668 shares
Directly owned by Andrey Mushakov following the 2026-08-28 tax-withholding transaction
Employee Stock Option exercise price
$18.48 per share
Exercise price for option on LTBR common stock held by Andrey Mushakov
Underlying shares for option
11,351 shares of Common Stock
Shares underlying fully vested Employee Stock Option expiring 2026-11-09
Option expiration date
2026-11-09
Expiration date of the reported Employee Stock Option (right to buy)
Form 4 transaction date
2026-08-28
Date of tax-withholding disposition of 6,817 common shares
Key Terms
restricted stock awards, Employee Stock Option (right to buy), Payment of tax liability by delivering or withholding securities, fully vested
4 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
"Employee Stock Option (right to buy) with underlying Common Stock."
Payment of tax liability by delivering or withholding securities financial
"transaction_code_description: Payment of tax liability by delivering or withholding securities"
fully vested financial
"This option is fully vested as of the date of this report."
FAQ
What insider transaction did LTBR executive Andrey Mushakov report on this Form 4?
Andrey Mushakov reported that 6,817 LTBR common shares were withheld on 2026-08-28 to cover tax liability upon vesting of restricted stock awards at $7.55 per share. The filing specifies that no shares were sold, only withheld for taxes.
Did the LTBR Form 4 show any open market buy or sell by Andrey Mushakov?
No. The Form 4 states that no shares were sold. The 6,817 shares were withheld to cover tax liability upon vesting of restricted stock awards, rather than being sold in an open market transaction or under a trading plan.
What stock options for LTBR does Andrey Mushakov report holding?
He reports a fully vested Employee Stock Option to acquire 11,351 LTBR common shares at an exercise price of $18.48 per share, with an expiration date of 2026-11-09. The filing notes this option is fully vested as of the report date.
Was a Rule 10b5-1 trading plan involved in this LTBR Form 4 transaction?
No. The filing’s Rule 10b5-1 checkbox is not marked as affirmative, and the footnotes do not reference any trading plan. The reported activity consists of tax withholding on vested restricted stock awards, not discretionary market trades.
AI-generated analysis. How Rhea-AI works. Not financial advice.
