<SEC-DOCUMENT>0000899243-16-033335-index.html : 20161114
<SEC-HEADER>0000899243-16-033335.hdr.sgml : 20161111
<ACCEPTANCE-DATETIME>20161114164122
ACCESSION NUMBER:		0000899243-16-033335
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20161110
FILED AS OF DATE:		20161114
DATE AS OF CHANGE:		20161114

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CytomX Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001501989
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		343 OYSTER POINT BLVD.
		STREET 2:		SUITE 100
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
		BUSINESS PHONE:		650.515.3185

	MAIL ADDRESS:	
		STREET 1:		343 OYSTER POINT BLVD.
		STREET 2:		SUITE 100
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Canaan Partners IX LLC
		CENTRAL INDEX KEY:			0001654586
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37587
		FILM NUMBER:		161995452

	BUSINESS ADDRESS:	
		STREET 1:		2765 SAND HILL ROAD
		CITY:			MENLO PARK
		STATE:			CA
		ZIP:			94025
		BUSINESS PHONE:		6508548092

	MAIL ADDRESS:	
		STREET 1:		2765 SAND HILL ROAD
		CITY:			MENLO PARK
		STATE:			CA
		ZIP:			94025

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Canaan IX L.P.
		CENTRAL INDEX KEY:			0001538676
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37587
		FILM NUMBER:		161995453

	BUSINESS ADDRESS:	
		STREET 1:		2765 SAND HILL ROAD
		CITY:			MENLO PARK
		STATE:			CA
		ZIP:			94025
		BUSINESS PHONE:		203-855-0400

	MAIL ADDRESS:	
		STREET 1:		2765 SAND HILL ROAD
		CITY:			MENLO PARK
		STATE:			CA
		ZIP:			94025
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
Document 1 - file: doc4.html

Document 1 - RAW XML: doc4.xml

</DOCUMENT>
</SEC-DOCUMENT>