<SEC-DOCUMENT>0000807249-13-000357.txt : 20131216
<SEC-HEADER>0000807249-13-000357.hdr.sgml : 20131216
<ACCEPTANCE-DATETIME>20131216133653
ACCESSION NUMBER:		0000807249-13-000357
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20131212
FILED AS OF DATE:		20131216
DATE AS OF CHANGE:		20131216

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LGL GROUP INC
		CENTRAL INDEX KEY:			0000061004
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC COMPONENTS, NEC [3679]
		IRS NUMBER:				381799862
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2525 SHADER ROAD
		CITY:			ORLANDO
		STATE:			FL
		ZIP:			32804
		BUSINESS PHONE:		(407) 298-2000

	MAIL ADDRESS:	
		STREET 1:		2525 SHADER ROAD
		CITY:			ORLANDO
		STATE:			FL
		ZIP:			32804

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LYNCH CORP
		DATE OF NAME CHANGE:	19920703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GABELLI MARIO J
		CENTRAL INDEX KEY:			0001185533

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-00106
		FILM NUMBER:		131278525

	MAIL ADDRESS:	
		STREET 1:		C/O GAMCO INVESTORS, INC
		STREET 2:		ONE CORPORATE CENTER
		CITY:			RYE
		STATE:			NY
		ZIP:			10580
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2013-12-12</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000061004</issuerCik>
        <issuerName>LGL GROUP INC</issuerName>
        <issuerTradingSymbol>LGL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001185533</rptOwnerCik>
            <rptOwnerName>GABELLI MARIO J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GAMCO INVESTORS, INC</rptOwnerStreet1>
            <rptOwnerStreet2>ONE CORPORATE CENTER</rptOwnerStreet2>
            <rptOwnerCity>RYE</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10580</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock Warrants (right to purchase)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>7.5</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2013-12-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>116840</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.0981</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2018-08-06</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock, par value $0.01 per share</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>53526</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1338145</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock Warrants (right to purchase)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>7.5</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2013-12-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>39844</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.1</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2018-08-06</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock, par value $0.01 per share</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>55120</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1377989</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeHolding>
            <securityTitle>
                <value>Common Stock Warrants (right to purchase)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>7.5</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2018-08-06</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock, par value $0.01 per share</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>27860</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>696500</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By: GGCP, Inc.</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Common Stock Warrants (right to purchase)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>7.5</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2018-08-06</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock, par value $0.01 per share</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>19351</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>483780</value>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By: MJG-IV Limited Partnership</value>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The Warrants become exercisable on the earlier of (i) August 6, 2018, and (ii) such date that the 30-day volume weighted average price per share, or VWAP, of the Common Stock is greater than or equal to $15.00. Any unexercised Warrants will expire at 5:00 p.m., Eastern Time, on August 6, 2018.</footnote>
        <footnote id="F2">This number takes into account the 1,221,305 warrants that were received on August 6, 2013 when holders of the Issuer's Common Stock received a dividend of five Common Stock Warrants for each share of Common Stock held by such holder as of July 29, 2013. When exercisable, 25 Warrants will entitle the holder to purchase one share of Common Stock at an exercise price of $7.50 per share, as may be adjusted in accordance with the terms of the Warrants.</footnote>
        <footnote id="F3">This number takes into account the 589,500 warrants that were received on August 6, 2013 when holders of the Issuer's Common Stock received a dividend of five Common Stock Warrants for each share of Common Stock held by such holder as of July 29, 2013. When exercisable, 25 Warrants will entitle the holder to purchase one share of Common Stock at an exercise price of $7.50 per share, as may be adjusted in accordance with the terms of the Warrants.</footnote>
        <footnote id="F4">These shares are owned by GGCP, Inc. (&quot;GGCP&quot;). Mr. Gabelli is deemed the beneficial owner of the shares owned by GGCP since he is the Chief Executive Officer, a director and the controlling shareholder of GGCP. Mr. Gabelli has less than a 100% interest in GGCP and disclaims beneficial ownership of the shares held by GGCP in excess of his pecuniary interest.</footnote>
        <footnote id="F5">These warrants were received on August 6, 2013 when holders of the Issuer's Common Stock received a dividend of five Common Stock Warrants for each share of Common Stock held by such holder as of July 29, 2013. When exercisable, 25 Warrants will entitle the holder to purchase one share of Common Stock at an exercise price of $7.50 per share, as may be adjusted in accordance with the terms of the Warrants.</footnote>
        <footnote id="F6">These shares are owned by MJG-IV Limited Partnership (&quot;MJG-IV&quot;). Mr. Gabelli is deemed the beneficial owner of the shares owned by MJG-IV since he is the general partner. Mr. Gabelli has less than a 100% interest in MJG-IV and disclaims beneficial ownership of the shares held by MJG-IV in excess of his pecuniary interest.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Douglas R. Jamieson,                     Attorney-In-Fact for Mario J. Gabelli</signatureName>
        <signatureDate>2013-12-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
