Seth Grae - 10 Oct 2025 Form 4 Insider Report for LIGHTBRIDGE Corp (LTBR)

Reporting relationship: President and CEO, Director
Issuer ticker: LTBR
Reported as of: 10 Oct 2025
Net transaction value: -$114,545
SEC form: 4
Accepted by SEC: 10 Oct 2025, 17:13:51 UTC
Prior SEC filing: 29 Aug 2025
Next SEC filing: 14 Oct 2025
Source filing: View source filing
Reporting owner signature: /s/ Seth Grae

Key filing fact

Seth Grae filed Form 4 for LIGHTBRIDGE Corp (LTBR) on 10 Oct 2025.

Key facts

This page summarizes Seth Grae's Form 4 filing for LIGHTBRIDGE Corp (LTBR).
3 reported transactions and 4 derivative rows are listed below.
Accepted by SEC: 10 Oct 2025, 17:13.

Change

Previous filing in this sequence was filed on 29 Aug 2025.
Current net transaction value: -$114,545.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001357549 Primary reporting owner

GRAE SETH

Relationship: President and CEO, Director
Address: C/O LIGHTBRIDGE CORPORATION, 11710 PLAZA AMERICA DRIVE, SUITE 2000, RESTON
Signature: /s/ Seth Grae
Signature date: 10 Oct 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

LTBR transaction

Common Stock

Options Exercise

Transaction value: $82,253
Shares: +7,616
Change %: +1%
Price: $10.80
Shares after: 760,932
Date: 10 Oct 2025
Ownership: Direct
Footnotes: F1

LTBR transaction

Common Stock

Sale

Transaction value: $196,797
Shares: -7,616
Change %: -1%
Price: $25.84
Shares after: 753,316
Date: 10 Oct 2025
Ownership: Direct
Footnotes: F1, F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

LTBR transaction Derivative

Employee Stock Option (right to buy)

Options Exercise

Transaction value: $0
Shares: -7,616
Change %: -27%
Price: $0.000000
Shares after: 20,600
Date: 10 Oct 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 7,616
Exercise price: $10.80
Footnotes: F1, F3

LTBR holding Derivative

Employee Stock Option (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 40,233
Date: 10 Oct 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 40,233
Exercise price: $12.60
Footnotes: F3

LTBR holding Derivative

Employee Stock Option (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 18,199
Date: 10 Oct 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 18,199
Exercise price: $18.48
Footnotes: F3

LTBR holding Derivative

Employee Stock Option (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 17,430
Date: 10 Oct 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 17,430
Exercise price: $55.20
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 3 footnotes

Footnote F1

The reported exercise of 7,616 employee stock options and sale of 7,616 shares of common stock were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 12, 2024.

Footnote F2

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.80 to $25.92, 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.

Footnote F3

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