LIGHTBRIDGE Corp

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

(Amendment No. )

Filed by the Registrant ☒

Filed by a party other than the Registrant ☐

Check the appropriate box:

LIGHTBRIDGE CORPORATION

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

PROXY STATEMENT

NOTICE OF 2026 ANNUAL MEETING OF

STOCKHOLDERS

MAY 14, 2026

ii

Fellow Stockholders:

On behalf of the Board of Directors, I invite you to join our 2026 Annual Meeting of Stockholders on Thursday, May 14, 2026 at 11 a.m. Eastern Time. The annual meeting is a virtual meeting. Please refer to the Notice of Annual Meeting of Stockholders for instructions on how to access the virtual annual meeting.

The enclosed Notice of Annual Meeting of Stockholders and proxy statement describe the proposals to be considered and voted upon at the meeting. I encourage you to review the proxy materials and vote as soon as possible even if you are planning to join the virtual annual meeting on May 14, 2026. You may vote by telephone, over the Internet, or, if you receive these materials by mail, by completing, signing, dating, and returning the enclosed proxy card or voting instruction form.

We hope that all stockholders will attend the virtual meeting. Whether or not you plan to attend the virtual meeting, it is important that you be represented. Your vote is important to us.

On behalf of the Board of Directors and senior management, I would like to express our appreciation for your support of Lightbridge Corporation. We hope you are safe and healthy.

Sincerely, Seth GraeChief Executive Officer, President and ChairmanMarch 30, 2026

Lightbridge Corporation11710 Plaza America Drive, Suite 2000Reston, VA 20190 USA571.730.1200

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

TO BE HELD ON MAY 14, 2026

Dear Stockholder:

Notice is hereby given that the Annual Meeting of Stockholders (the “annual meeting”) of Lightbridge Corporation, a Nevada corporation (the “Company”), will be held on Thursday, May 14, 2026 at 11 a.m., Eastern Time, for the following purposes:

If you owned our common stock at the close of business on March 18, 2026, you may attend and vote at the annual meeting.

The annual meeting will be a completely virtual meeting of stockholders, which will be conducted solely online via live webcast. You will be able to attend and participate in the annual meeting online, vote your shares electronically and submit your questions prior to and during the meeting by visiting: www.virtualshareholdermeeting.com/LTBR2026 as described in the accompanying proxy statement. You will need to have your 16-digit control number included on your proxy card or on the instructions that accompanied your proxy materials to join the annual meeting. There will be no physical location for stockholders to attend, and you will not be able to attend the annual meeting in person.

Your vote is important. Whether or not you plan to attend the virtual meeting, I hope that you will vote as soon as possible. You may vote your shares by either completing, signing, and returning the accompanying proxy card or casting your vote via a toll-free telephone number or over the Internet.

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE STOCKHOLDER MEETING TO BE HELD ON MAY 14, 2026This Notice, our proxy statement and our 2025 Annual Report are available online athttp://materials.proxyvote.com/53224K

iii

TABLE OF CONTENTS

iv

TABLE OF CONTENTS

(continued)

v

Table of Contents