-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 SBDAVWmR1UV8bXvzlnBCaWskdF15DBlNnl0st7ZSskXmuXNQliI2mdu2R7HkdEco
 PqINKMaGSENFP05WGIWK8w==

<SEC-DOCUMENT>0001209191-03-007032.txt : 20030609
<SEC-HEADER>0001209191-03-007032.hdr.sgml : 20030609
<ACCEPTANCE-DATETIME>20030609162923
ACCESSION NUMBER:		0001209191-03-007032
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030605
FILED AS OF DATE:		20030609

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MILLS ANDREW G
		CENTRAL INDEX KEY:			0001180558

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21319
		FILM NUMBER:		03737668

	BUSINESS ADDRESS:	
		STREET 1:		150 SHAW ROAD
		CITY:			CHESTNUT HILL
		STATE:			MA
		ZIP:			02467
		BUSINESS PHONE:		7813594201

	MAIL ADDRESS:	
		STREET 1:		262 HIGH STREET
		CITY:			WINCHESTER
		STATE:			MA
		ZIP:			01890

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LIGHTBRIDGE INC
		CENTRAL INDEX KEY:			0001017172
		STANDARD INDUSTRIAL CLASSIFICATION:	RADIO TELEPHONE COMMUNICATIONS [4812]
		IRS NUMBER:				043065140
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		67 S BEDFORD ST
		CITY:			BURLINGTON
		STATE:			MA
		ZIP:			01803
		BUSINESS PHONE:		6173594000

	MAIL ADDRESS:	
		STREET 1:		67 SOUTH BEDFORD STREET
		CITY:			BURLINGTON
		STATE:			MA
		ZIP:			01803
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>bob46866_bob2am.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0101</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-06-05</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0001017172</issuerCik><issuerName>LIGHTBRIDGE INC</issuerName>        <issuerTradingSymbol>LTBG</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001180558</rptOwnerCik><rptOwnerName>MILLS ANDREW G</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>  </rptOwnerStreet1><rptOwnerStreet2>  </rptOwnerStreet2><rptOwnerCity>  </rptOwnerCity><rptOwnerState>  </rptOwnerState><rptOwnerZipCode>  </rptOwnerZipCode></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><derivativeSecurity><securityTitle><value>Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>8.75</value
></conversionOrExercisePrice><transactionDate><value>2003-06-05</value><footnoteId id="F1" /></transactionDate><deemedExecutionDate><value>2003-06-05</value></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>10000</value></transactionShares><transactionValue><value>8.75</value></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2003-06-05</value></exerciseDate><expirationDate><value>2013-06-05</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>10000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>10000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><own
ershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeSecurity><footnotes><footnote id="F1">Date indicated is date of grant.  Option is fully vested.</footnote></footnotes><ownerSignature><signatureName>/s/ Eugene DiDonato, Attorney-in-Fact</signatureName><signatureDate>2003-06-09</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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