<SEC-DOCUMENT>0001161697-14-000447.txt : 20140905
<SEC-HEADER>0001161697-14-000447.hdr.sgml : 20140905
<ACCEPTANCE-DATETIME>20140905162055
ACCESSION NUMBER:		0001161697-14-000447
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20140828
FILED AS OF DATE:		20140905
DATE AS OF CHANGE:		20140905

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CATALYST PHARMACEUTICAL PARTNERS, INC.
		CENTRAL INDEX KEY:			0001369568
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		355 ALHAMBRA CIRCLE
		STREET 2:		SUITE 1500
		CITY:			CORAL GABLES
		STATE:			FL
		ZIP:			33134
		BUSINESS PHONE:		(305) 529-2522

	MAIL ADDRESS:	
		STREET 1:		355 ALHAMBRA CIRCLE
		STREET 2:		SUITE 1500
		CITY:			CORAL GABLES
		STATE:			FL
		ZIP:			33134

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Catalyst Pharmaceutical Partners, Inc.
		DATE OF NAME CHANGE:	20060719

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MUTH DAVID D
		CENTRAL INDEX KEY:			0001111736

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33057
		FILM NUMBER:		141086197

	MAIL ADDRESS:	
		STREET 1:		CATALYST PHARMACEUTICAL PARTNERS, INC.
		STREET 2:		355 ALHAMBRA CIRCLE, SUITE 1500
		CITY:			CORAL GABLES
		STATE:			FL
		ZIP:			33134
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>form_3.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2014-08-28</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001369568</issuerCik>
        <issuerName>CATALYST PHARMACEUTICAL PARTNERS, INC.</issuerName>
        <issuerTradingSymbol>CPRX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001111736</rptOwnerCik>
            <rptOwnerName>MUTH DAVID D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>355 ALHAMBRA CIRCLE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1500</rptOwnerStreet2>
            <rptOwnerCity>CORAL GABLES</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33134</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Exec. V.P., Corp. Development</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.001 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Options to purchase common stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.12</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2015-08-28</value>
            </exerciseDate>
            <expirationDate>
                <value>2021-08-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>50000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Options to purchase common stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.12</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2016-08-28</value>
            </exerciseDate>
            <expirationDate>
                <value>2021-08-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>50000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Options to purchase common stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.12</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2017-08-28</value>
            </exerciseDate>
            <expirationDate>
                <value>2021-08-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>50000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <ownerSignature>
        <signatureName>/s/ David Muth</signatureName>
        <signatureDate>2014-09-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
