LIGHTBRIDGE Corp — Director's Dealing 2013

Dec 23, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: LIGHTBRIDGE Corp (LTBR)
CIK: 0001084554
Period of Report: 2013-12-19

Reporting Person: MARXE AUSTIN W & GREENHOUSE DAVID M (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-12-19	Common Stock	S	147100	$1.6006	Disposed	2203246	Indirect
2013-12-20	Common Stock	S	14000	$1.4238	Disposed	2189246	Indirect
2013-12-20	Common Stock	S	84881	$1.4	Disposed	2104365	Indirect

Footnotes

F1: This is a weighted average price.

F2: This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (QP), Special Situations Cayman Fund, L.P. (Cayman) and Special Situations Private Equity Fund, L.P. (PE). 1,280,982 shares of Common Stock are held by QP, 428,899 shares of Common Stock are held by Cayman, 394,484 shares of Common Stock are held by PE. The interest of Marxe and Greenhouse in the shares of Common Stock owned by QP, Cayman and PE is limited to the extent of his pecuniary interest.