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 * Abildgaard Soren 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)
EVP of Engineering
(Last)         (First)         (Middle)
C/O ZENDESK, INC., 989 MARKET STREET
3. Date of Earliest Transaction (MM/DD/YYYY)
8/9/2021
(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  8/9/2021    M(1)    6563  A $35.65  9129  D   
Common Stock  8/9/2021    S(1)    6563  D $128.32  2566  D   
Common Stock  8/9/2021    S(1)    503  D $128.32  2063  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
Stock Option (Right to Buy)  $35.65  8/9/2021    M (1)       6563    (2) 11/8/2027  Common Stock  6563.0  $0  6564  D   

Explanation of Responses:
(1)  This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by Soren Abildgaard on June 7, 2021.
(2)  1/4th of the shares subject to the Options vested and became exercisable one year after the vesting commencement date of November 6, 2017, and an additional 1/48th of the shares shall vest and become exercisable 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.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Abildgaard Soren
C/O ZENDESK, INC.
989 MARKET STREET
SAN FRANCISCO, CA 94103


EVP of Engineering

Signatures
/s/ Steven Chen via Power-of-Attorney for Soren Abildgaard 8/10/2021
**Signature of Reporting Person Date
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