<SEC-DOCUMENT>0001140361-18-006599.txt : 20180212
<SEC-HEADER>0001140361-18-006599.hdr.sgml : 20180212
<ACCEPTANCE-DATETIME>20180212163647
ACCESSION NUMBER:		0001140361-18-006599
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180208
FILED AS OF DATE:		20180212
DATE AS OF CHANGE:		20180212

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			683 Capital Partners, LP
		CENTRAL INDEX KEY:			0001380126
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36020
		FILM NUMBER:		18597015

	BUSINESS ADDRESS:	
		STREET 1:		C/O 683 CAPITAL GP, LLC
		STREET 2:		3 COLUMBUS CIRCLE, SUITE 2205
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		212-554-2379

	MAIL ADDRESS:	
		STREET 1:		C/O 683 CAPITAL GP, LLC
		STREET 2:		3 COLUMBUS CIRCLE, SUITE 2205
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

	FORMER NAME:	
		FORMER CONFORMED NAME:	683 CAPITAL PARTNERS LP
		DATE OF NAME CHANGE:	20061103

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			683 Capital Management, LLC
		CENTRAL INDEX KEY:			0001404574
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36020
		FILM NUMBER:		18597016

	BUSINESS ADDRESS:	
		STREET 1:		3 COLUMBUS CIRCLE
		STREET 2:		SUITE 2205
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		(212) 554-2379

	MAIL ADDRESS:	
		STREET 1:		3 COLUMBUS CIRCLE
		STREET 2:		SUITE 2205
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Onconova Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001130598
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		375 PHEASANT RUN
		CITY:			NEWTOWN
		STATE:			PA
		ZIP:			18940
		BUSINESS PHONE:		267-759-3681

	MAIL ADDRESS:	
		STREET 1:		375 PHEASANT RUN
		CITY:			NEWTOWN
		STATE:			PA
		ZIP:			18940

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ONCONOVA THERAPEUTICS, INC.
		DATE OF NAME CHANGE:	20090526

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ONCONOVA THERAPEUTICS INC
		DATE OF NAME CHANGE:	20001226
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2018-02-08</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001130598</issuerCik>
        <issuerName>Onconova Therapeutics, Inc.</issuerName>
        <issuerTradingSymbol>ONTX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001404574</rptOwnerCik>
            <rptOwnerName>683 Capital Management, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3 COLUMBUS CIRCLE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 2205</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001380126</rptOwnerCik>
            <rptOwnerName>683 Capital Partners, LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O 683 CAPITAL GP, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>3 COLUMBUS CIRCLE, SUITE 2205</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2464934</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By 683 Capital Partners, LP</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Series A Convertible Preferred Stock Purchase Warrant</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.01</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2018-02-12</value>
            </exerciseDate>
            <expirationDate>
                <value>2019-12-31</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Series A Convertible Preferred Stock</value>
                    <footnoteId id="F3"/>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>200000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By 683 Capital Partners, LP</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This Form 3 is filed jointly by 683 Capital Management, LLC (&quot;683 Management&quot;), 683 Capital Partners, LP (&quot;683 Partners&quot;)  and Ari Zweiman (collectively, the &quot;Reporting Persons&quot;). Each of the Reporting Persons may be deemed to be a member of a Section 13(d) group that collectively owns more than 10% of the Issuer's outstanding shares of Common Stock. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein.</footnote>
        <footnote id="F2">Represents securities held directly by 683 Partners. 683 Management is the investment manager of 683 Partners. Ari Zweiman is the Managing Member of 683 Management. As a result, each of 683 Management and Ari Zweiman may be deemed to beneficially own the securities held by 683 Partners.</footnote>
        <footnote id="F3">Each share of Series A Convertible Preferred Stock of the Issuer  is convertible into 10 shares of Common Stock of the Issuer, subject to adjustment.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Ari Zweiman, Managing Member of 683 Capital GP, LLC, in its capacity as general partner of 683 Capital Partners, LP</signatureName>
        <signatureDate>2018-02-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ari Zweiman, Managing Member of 683 Capital Management, LLC</signatureName>
        <signatureDate>2018-02-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ari Zweiman</signatureName>
        <signatureDate>2018-02-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
