<SEC-DOCUMENT>0001144204-15-032028.txt : 20150518
<SEC-HEADER>0001144204-15-032028.hdr.sgml : 20150518
<ACCEPTANCE-DATETIME>20150518164638
ACCESSION NUMBER:		0001144204-15-032028
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20150515
FILED AS OF DATE:		20150518
DATE AS OF CHANGE:		20150518

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Lipocine Inc.
		CENTRAL INDEX KEY:			0001535955
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				990370688
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		675 ARAPEEN DRIVE, SUITE 202
		CITY:			SALT LAKE CITY
		STATE:			X1
		ZIP:			84108
		BUSINESS PHONE:		801 994 7383

	MAIL ADDRESS:	
		STREET 1:		675 ARAPEEN DRIVE, SUITE 202
		CITY:			SALT LAKE CITY
		STATE:			X1
		ZIP:			84108

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MARATHON BAR CORP
		DATE OF NAME CHANGE:	20111130

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mattila Jyrki
		CENTRAL INDEX KEY:			0001297318

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36357
		FILM NUMBER:		15873793

	MAIL ADDRESS:	
		STREET 1:		AUXILIUM PHARMACEUTICALS, INC.
		STREET 2:		40 VALLEY STREAM PARKWAY
		CITY:			MALVERN
		STATE:			PA
		ZIP:			19355
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>form333943_20150518044647-.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2015-05-15</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001535955</issuerCik>
        <issuerName>Lipocine Inc.</issuerName>
        <issuerTradingSymbol>LPCN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001297318</rptOwnerCik>
            <rptOwnerName>Mattila Jyrki</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>675 ARAPEEN DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 202</rptOwnerStreet2>
            <rptOwnerCity>SALT LAKE CITY</rptOwnerCity>
            <rptOwnerState>UT</rptOwnerState>
            <rptOwnerZipCode>84108</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Business Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/Jyrki Mattila</signatureName>
        <signatureDate>2015-05-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
