<SEC-DOCUMENT>0001193125-16-454042-index.html : 20160209
<SEC-HEADER>0001193125-16-454042.hdr.sgml : 20160209
<ACCEPTANCE-DATETIME>20160208173330
ACCESSION NUMBER:		0001193125-16-454042
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20160209
DATE AS OF CHANGE:		20160208
GROUP MEMBERS:		DANA STALDER
GROUP MEMBERS:		MATRIX IX MANAGEMENT CO., L.L.C.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Zendesk, Inc.
		CENTRAL INDEX KEY:			0001463172
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-88528
		FILM NUMBER:		161396556

	BUSINESS ADDRESS:	
		STREET 1:		1019 MARKET STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94103
		BUSINESS PHONE:		(415) 418-7506

	MAIL ADDRESS:	
		STREET 1:		1019 MARKET STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94103

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Matrix Partners IX, L.P.
		CENTRAL INDEX KEY:			0001468392
		IRS NUMBER:				320286972
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		C/O MATRIX PARTNERS
		STREET 2:		101 MAIN STREET 17TH FLOOR
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		617-494-1223

	MAIL ADDRESS:	
		STREET 1:		C/O MATRIX PARTNERS
		STREET 2:		101 MAIN STREET 17TH FLOOR
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>d132999dsc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: d132999dsc13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>