<SEC-DOCUMENT>0000905718-16-001636.txt : 20160817
<SEC-HEADER>0000905718-16-001636.hdr.sgml : 20160817
<ACCEPTANCE-DATETIME>20160817184215
ACCESSION NUMBER:		0000905718-16-001636
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160729
FILED AS OF DATE:		20160817
DATE AS OF CHANGE:		20160817

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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TYNDALL CAPITAL PARTNERS L P
		CENTRAL INDEX KEY:			0001219314
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36020
		FILM NUMBER:		161839681

	BUSINESS ADDRESS:	
		STREET 1:		405 PARK AVENUE
		STREET 2:		SUITE 1104
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-446-2473

	MAIL ADDRESS:	
		STREET 1:		405 PARK AVENUE
		STREET 2:		SUITE 1104
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>tyndall_form3jul292016.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2016-07-29</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001219314</rptOwnerCik>
            <rptOwnerName>TYNDALL CAPITAL PARTNERS L P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>405 PARK AVENUE, SUITE 1104</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</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</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>520832</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Note</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Warrants (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.92</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2016-07-29</value>
            </exerciseDate>
            <expirationDate>
                <value>2021-07-27</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>390624</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Note</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The 520,832 shares of common stock, par value $0.01 per share (the &quot;Shares&quot;), and the warrants to purchase up to 390,624 Shares reported herein are held by Tyndall Partners, L.P., a Delaware limited partnership (&quot;Tyndall&quot;). Tyndall Capital Partners, L.P. is the general partner of Tyndall, and possesses the sole power to vote and the sole power to direct the disposition of all Shares held by Tyndall. The reporting person's interest in the securities reported herein is limited to the extent of its pecuniary interest in such securities, if any.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Jeffrey S. Halis, Manager of Jeffrey Management, LLC, General Partner of Tyndall Capital Partners, L.P</signatureName>
        <signatureDate>2016-08-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
