FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         	UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
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                      	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	                      	

1. Name and Address of Reporting Person *

Gomez Elena	2. Issuer Name and Ticker or Trading Symbol

Zendesk, Inc. [ ZEN ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
Chief Financial Officer	
(Last)          (First)          (Middle)

1019 MARKET STREET	3. Date of Earliest Transaction (MM/DD/YYYY)

3/15/2019		
(Street)

SAN FRANCISCO, CA 94103
(City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)

 	6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person	

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned	
1.Title of Security
(Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. Code
(Instr. 8)	4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)	5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)	
			Code	V	Amount	(A) or (D)	Price				
Common Stock  	3/15/2019  	 	M	  	415  	A	  (1)	23992  	D  	 	
Common Stock  	3/15/2019  	 	F	  	206   (2)	D	$82.96  	23786  	D  	 	
Common Stock  	3/15/2019  	 	M	  	2916  	A	  (1)	26702  	D  	 	
Common Stock  	3/15/2019  	 	F	  	1446   (2)	D	$82.96  	25256  	D  	 	
Common Stock  	3/15/2019  	 	M	  	234  	A	  (1)	25490  	D  	 	
Common Stock  	3/15/2019  	 	F	  	117   (2)	D	$82.96  	25373  	D  	 	
Common Stock  	3/15/2019  	 	M	  	644  	A	  (1)	26017  	D  	 	
Common Stock  	3/15/2019  	 	F	  	320   (2)	D	$82.96  	25697  	D  	 	

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)	
1. Title of Derivate Security
(Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. Code
(Instr. 8)	5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)	6. Date Exercisable and Expiration Date	7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)	8. Price of Derivative Security
(Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)	
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares					
Restricted Stock Unit  	  (1)	3/15/2019  	 	M  	  	  	415   	  (3)	2/7/2026  	Common Stock  	415.0  	$0  	19071  	D  	 	
Restricted Stock Unit  	  (1)	3/15/2019  	 	M  	  	  	2916   	  (4)	5/6/2023  	Common Stock  	2916.0  	$0  	40835  	D  	 	
Restricted Stock Unit  	  (1)	3/15/2019  	 	M  	  	  	234   	  (5)	5/9/2024  	Common Stock  	234.0  	$0  	6067  	D  	 	
Restricted Stock Unit  	  (1)	3/15/2019  	 	M  	  	  	644   	  (6)	2/8/2025  	Common Stock  	644.0  	$0  	21888  	D  	 	

Explanation of Responses:	
(1) 	Restricted stock units convert into common stock on a one-for-one basis.	
(2) 	Represents the number of shares withheld by the Issuer in satisfaction of tax withholding obligations in connection with the vesting of the restricted stock units listed in Table II. Such withholding is mandated by an election of the Issuer made in advance and does not represent a discretionary trade by the Reporting Person.	
(3) 	1/48th of the shares issuable pursuant to the restricted stock units shall vest each month after the vesting commencement date of January 15, 2019, subject to the Reporting Person's continuous service to the Issuer on each such date. Unvested shares are subject to acceleration upon the occurrence of certain events.	
(4) 	1/4th of the shares issuable pursuant to the restricted stock units shall vest one year after the vesting commencement date of May 15, 2016 and an additional 1/48th of the shares issuable pursuant to the restricted stock units shall vest each month thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date. Unvested shares are subject to acceleration upon the occurrence of certain events.	
(5) 	1/48th of the shares issuable pursuant to the restricted stock units shall vest each month after the vesting commencement date of May 15, 2017, subject to the Reporting Person's continuous service to the Issuer on each such date. Unvested shares are subject to acceleration upon the occurrence of certain events.	
(6) 	1/48th of the shares issuable pursuant to the restricted stock units shall vest each month after the vesting commencement date of January 15, 2018, subject to the Reporting Person's continuous service to the Issuer on each such date. Unvested shares are subject to acceleration upon the occurrence of certain events.	

Reporting Owners	
Reporting Owner Name / Address	Relationships	
	Director	10% Owner	Officer	Other	
Gomez Elena
1019 MARKET STREET
SAN FRANCISCO, CA 94103			Chief Financial Officer		

Signatures		
/s/ Hasani Caraway, as Attorney-in-Fact for Elena Gomez		3/19/2019	
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.	
*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).	
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).	
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.	
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.