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
                                                                                  	OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response... 0.5	
                      	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 *

Stalder Dana	2. Issuer Name and Ticker or Trading Symbol

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

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

260 HOMER AVENUE, SUITE 201	3. Date of Earliest Transaction (MM/DD/YYYY)

8/18/2016		
(Street)

PALO ALTO, CA 94301
(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  	8/18/2016  	 	J (1)	  	1031  	D	$0  	0  	I  	By Weston & Co. IX LLC, As Nominee   (2)	
Common Stock  	8/18/2016  	 	J (3)	  	1031  	A	$0  	89041  	I  	By Vista Grande Trust Dated January 24, 2001 as amended   (4)	
Common Stock  	8/18/2016  	 	J (1)	  	599235  	D	$0  	0  	I  	By Matrix Partners IX, L.P.   (5)	
Common Stock  	8/18/2016  	 	J (3)	  	16278  	A	$0  	105319  	I  	By Vista Grande Trust Dated January 24, 2001 as amended   (4)	

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					

Explanation of Responses:	
(  1) 	Represents a pro rata distribution for no consideration.	
(  2) 	These shares were owned directly by Weston & Co. IX LLC ("Weston IX"), as nominee for Vista Grande Trust, a trust of which Mr. Stalder is the trustee and a beneficiary (the "Trust"). Weston IX owned shares in the company as nominee for other beneficial owners. Mr. Stalder disclaimed ownership of any of the shares owned directly by Weston IX other than those held by Weston IX as nominee for the Trust. The Trust held sole voting and/or investment control over the shares held by Weston IX as nominee for the Trust, but did not have sole or shared voting and/or investment control with respect to the shares owned by Weston IX.	
(  3) 	Shares acquired by the Reporting Person pursuant to a pro rata distribution for no consideration.	
(  4) 	Shares held by Vista Grande Trust dated January 24, 2001 as amended. The Reporting Person is a trustee and beneficiary of the trust.	
(  5) 	These shares were owned directly by Matrix Partners IX, L.P. ("Matrix IX"). Dana Stalder is managing member of Matrix IX Management Co., L.L.C., the general partner of Matrix IX, and held sole voting and dispositive power with respect to the Matrix IX shares. The Reporting Person disclaimed beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person was the beneficial owner of such securities for Section 16 or any other purpose. Dana Stalder is a director of Issuer.	

Remarks:
Exhibit 24 Power of Attorney.	

Reporting Owners	
Reporting Owner Name / Address	Relationships	
	Director	10% Owner	Officer	Other	
Stalder Dana
260 HOMER AVENUE
SUITE 201
PALO ALTO, CA 94301	X				

Signatures		
/s/ Hasani Caraway, attorney-in-fact for Dana Stalder		8/22/2016	
** 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.	

LIMITED POWER OF ATTORNEY EXHIBIT 24
The undersigned hereby constitutes and appoints each of Mikkel Svane, Elena Gomez, John Geschke, Hasani Caraway, Andrew T. Hill, and Bradley C. Weber, signing singly, and with full power of substitution, the undersigned's true and lawful attorney-in-fact to:
(1)execute for and on behalf of the undersigned, in the undersigned's capacity as an officer and/or director of Zendesk, Inc. (the ?Company?), from time to time the following U.S. Securities and Exchange Commission (?SEC?) forms: (i) Form ID, including any attached documents, to effect the assignment of codes to the undersigned to be used in the transmission of information to the SEC using the EDGAR System; (ii) Form 3, Initial Statement of Beneficial Ownership of Securities, including any attached documents;
(iii) Form 4, Statement of Changes in Beneficial Ownership of Securities,including any attached documents; (iv) Form 5, Annual Statement of Beneficial Ownership of Securities in accordance with
Section 16(a) of the Securities Exchange Act of 1934, as amended, and the rules thereunder, including anyattached documents; (v) Schedule 13D and (vi) amendments of each thereof, in accordance with the Securities Exchange Act of 1934, as amended, and the rules thereunder, including any attached documents;
(2)do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4 or 5, Schedule 13D or any amendment(s) thereto, and timely file such form(s) with the SEC and any securities exchange, national association or similar authority; and
(3)take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.The undersigned hereby grants to each such attorney-in-fact, acting singly, full power and authority to do and perform any and every act and thing whatsoever requisite, necessary or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with
Section 16 or Regulation 13D-G of the Securities Exchange Act of 1934, as amended. The undersigned hereby agrees to indemnify the attorney in fact and the Company from and against any demand, damage, loss, cost or expense arising from any false or misleading information provided by the undersigned to the attorney-in fact.
This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file such forms with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of July 28, 2016.

/s/ Dana Stalder