<SEC-DOCUMENT>0001019056-18-001053-index.html : 20181106
<SEC-HEADER>0001019056-18-001053.hdr.sgml : 20181106
<ACCEPTANCE-DATETIME>20181106165818
ACCESSION NUMBER:		0001019056-18-001053
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20181106
DATE AS OF CHANGE:		20181106
GROUP MEMBERS:		GAGNON ADVISORS, LLC
GROUP MEMBERS:		GAGNON SECURITIES LLC
GROUP MEMBERS:		NEIL GAGNON

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CareDx, Inc.
		CENTRAL INDEX KEY:			0001217234
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MEDICAL LABORATORIES [8071]
		IRS NUMBER:				943316839
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-88252
		FILM NUMBER:		181163758

	BUSINESS ADDRESS:	
		STREET 1:		3260 BAYSHORE BOULEVARD
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005
		BUSINESS PHONE:		415-287-2300

	MAIL ADDRESS:	
		STREET 1:		3260 BAYSHORE BOULEVARD
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	XDx, Inc.
		DATE OF NAME CHANGE:	20071010

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EXPRESSION DIAGNOSTICS INC
		DATE OF NAME CHANGE:	20030203

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GAGNON SECURITIES LLC
		CENTRAL INDEX KEY:			0001125725
		IRS NUMBER:				134087058
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		1370 AVENUE OF THE AMERICAS
		STREET 2:		24TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		2125545000

	MAIL ADDRESS:	
		STREET 1:		1370 AVENUE OF THE AMERICAS
		STREET 2:		24TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>caredx_13ga6.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: caredx_13ga6.htm

</DOCUMENT>
</SEC-DOCUMENT>