<SEC-DOCUMENT>0001104659-18-009728-index.html : 20180214
<SEC-HEADER>0001104659-18-009728.hdr.sgml : 20180214
<ACCEPTANCE-DATETIME>20180214161808
ACCESSION NUMBER:		0001104659-18-009728
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20180214
DATE AS OF CHANGE:		20180214
GROUP MEMBERS:		AUGUSTINE LAWLOR
GROUP MEMBERS:		CHRISTOPHER MIRABELLI
GROUP MEMBERS:		DOUGLAS E. ONSI
GROUP MEMBERS:		HAROLD WERNER
GROUP MEMBERS:		HEALTHCARE PARTNERS IX, L.P.
GROUP MEMBERS:		HEALTHCARE PARTNERS IX, LLC
GROUP MEMBERS:		HEALTHCARE PARTNERS VIII, L.P.
GROUP MEMBERS:		HEALTHCARE PARTNERS VIII, LLC
GROUP MEMBERS:		HEALTHCARE STRATEGIC PARTNERS, LLC
GROUP MEMBERS:		HEALTHCARE VENTURES STRATEGIC FUND, L.P.
GROUP MEMBERS:		HEALTHCARE VENTURES VIII, L.P.
GROUP MEMBERS:		JAMES H. CAVANAUGH
GROUP MEMBERS:		JOHN W. LITTLECHILD

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LEAP THERAPEUTICS, INC.
		CENTRAL INDEX KEY:			0001509745
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				274412575
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-90188
		FILM NUMBER:		18612491

	BUSINESS ADDRESS:	
		STREET 1:		47 THORNDIKE STREET
		STREET 2:		SUITE B1-1
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		617 252 4343

	MAIL ADDRESS:	
		STREET 1:		47 THORNDIKE STREET
		STREET 2:		SUITE B1-1
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Dekkun Corp
		DATE OF NAME CHANGE:	20110107

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HealthCare Ventures IX, L.P.
		CENTRAL INDEX KEY:			0001490245
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		55 CAMBRIDGE PARKWAY
		STREET 2:		SUITE 102
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		617.252.4343

	MAIL ADDRESS:	
		STREET 1:		55 CAMBRIDGE PARKWAY
		STREET 2:		SUITE 102
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>a18-6060_1sc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>
Document 1 - file: a18-6060_1sc13da.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a18-6060_1ex99d1.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: a18-6060_1ex99d1.htm

</DOCUMENT>
</SEC-DOCUMENT>