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 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Price Matthew Adrian   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) SVP Emerging Bus./Corp Mktg (Last) (First) (Middle) 1019 MARKET STREET 3. Date of Earliest Transaction (Month/Day/Year) 03/21/2016 (Street) SAN FRANCISCO, CA 94103 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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 03/21/2016   M(1)   1,667 A $ 2.3 4,378 D   Common Stock 03/21/2016   S(1)   3,583 D $ 20 795 D   Common Stock 03/21/2016   M(1)   1,916 A $ 9.52 2,711 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction 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 (Month/Day/Year)

7. Title and Amount of Underlying Securities (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

Stock Option (Right to Buy)

$ 2.3

03/21/2016

M(1)

1,667

(2)

07/18/2022

Common Stock

1,667

$ 0

26,667

D

Stock Option (Right to Buy)

$ 9.52

03/21/2016

M(1)

1,916

(3)

02/13/2024

Common Stock

1,916

$ 0

67,084

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Price Matthew Adrian 1019 MARKET STREET SAN FRANCISCO, CA 94103			SVP Emerging Bus./Corp Mktg

Signatures

/s/ John Geschke, Attorney-in-Fact for Matthew Adrian Price		03/22/2016
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
(2)	1/5th of the shares subject to the option vested on July 18, 2013 and 1/60th of the shares subject to the option shall vest monthly thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date. 100% of the then unvested shares are subject to acceleration upon the occurrence of certain events.
(3)	The option is immediately exercisable as of the grant date. 1/60th of the shares vest monthly after the vesting commencement date of February 13, 2014, subject to the Reporting Person's continuous service to the Issuer on each such date. 100% of the then unvested shares are subject to acceleration upon the occurrence of certain events. Unvested shares exercised are subject to a right of repurchase in favor of the Issuer should the Reporting Person cease to provide continuous service.

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