<SEC-DOCUMENT>0001104659-15-049011.txt : 20150630
<SEC-HEADER>0001104659-15-049011.hdr.sgml : 20150630
<ACCEPTANCE-DATETIME>20150630184519
ACCESSION NUMBER:		0001104659-15-049011
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20150630
FILED AS OF DATE:		20150630
DATE AS OF CHANGE:		20150630

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CATABASIS PHARMACEUTICALS INC
		CENTRAL INDEX KEY:			0001454789
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE KENDALL SQUARE
		STREET 2:		BLDG. 1400E, SUITE B14202
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139
		BUSINESS PHONE:		617-349-1971

	MAIL ADDRESS:	
		STREET 1:		ONE KENDALL SQUARE
		STREET 2:		BLDG. 1400E, SUITE B14202
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Laufer Ron
		CENTRAL INDEX KEY:			0001645130

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37467
		FILM NUMBER:		15962714

	MAIL ADDRESS:	
		STREET 1:		C/O CATABASIS PHARMACEUTICALS, INC.
		STREET 2:		ONE KENDALL SQ., BLDG. 1400E, STE B14202
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139
</SEC-HEADER>
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            <rptOwnerName>Laufer Ron</rptOwnerName>
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            <rptOwnerStreet2>ONE MEDIMMUNE WAY</rptOwnerStreet2>
            <rptOwnerCity>GAITHERSBURG</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>20878</rptOwnerZipCode>
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                    <value>See Footnote</value>
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        </derivativeTransaction>
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            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
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                <value>12.21</value>
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                <value>2015-06-30</value>
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                <value>2025-06-29</value>
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    <footnotes>
        <footnote id="F1">The Series A and Series B Preferred Stock converted into Common Stock on a 1-for-12.85 basis upon the closing of the Issuer's initial public offering without payment of consideration.  The Series A and B Preferred Stock were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date.</footnote>
        <footnote id="F2">These shares are owned directly by MedImmune Ventures, Inc. Dr. Laufer is the Senior Managing Partner of MedImmune Ventures, Inc., and as a result, Dr. Laufer may be deemed to hold voting, dispositive and investment power over the shares held by MedImmune Ventures, Inc. Dr. Laufer disclaims beneficial ownership of such shares except to the extent of any pecuniary interest therein.</footnote>
        <footnote id="F3">This option was granted on June 30, 2015 and vests over three years, with one-third of the shares vesting on each anniversary of the grant date until the third anniversary of the grant date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Andrea Matthews, attorney-in-fact for Ron Laufer</signatureName>
        <signatureDate>2015-06-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</DOCUMENT>
</SEC-DOCUMENT>
