FORM 3
        
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
INITIAL STATEMENT OF 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. Date of Event Requiring Statement (MM/DD/YYYY)
4/5/2021 

3. Issuer Name and Ticker or Trading Symbol Zendesk, Inc. [ZEN]
(Last)       (First)       (Middle)
C/O ZENDESK, INC., 989 MARKET STREET
4. Relationship of Reporting Person(s) to Issuer (Check all applicable)_____ Director                          _____ 10% Owner
___X___ Officer (give title below)        _____ Other (specify below)
EVP of Engineering /
(Street)
SAN FRANCISCO, CA 94103      
(City)             (State)             (Zip)
5. 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 Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock  109  D   

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(MM/DD/YYYY)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy)   (1) 11/8/2027  Common Stock  17501.0  $35.65  D   
Stock Option (Right to Buy)   (2) 2/7/2029  Common Stock  8338.0  $73.27  D   
Stock Option (Right to Buy)   (3) 2/10/2030  Common Stock  14273.0  $89.2  D   
Stock Option (Right to Buy)   (4) 2/8/2031  Common Stock  7084.0  $155.97  D   
Restricted Stock Unit   (5) 1/31/2025  Common Stock  12918.0   (6) D   
Restricted Stock Unit   (7) 2/7/2026  Common Stock  3988.0   (6) D   
Restricted Stock Unit   (8) 2/10/2027  Common Stock  7137.0   (6) D   
Restricted Stock Unit   (9) 10/27/2027  Common Stock  8550.0   (6) D   
Restricted Stock Unit   (10) 2/8/2028  Common Stock  10404.0   (6) D   

Explanation of Responses:
(1)  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.
(2)  1/48th of the shares issuable pursuant to the Options shall vest each month after the vesting commencement date of February 7, 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.
(3)  1/48th of the shares issuable pursuant to the Options shall vest each month after the vesting commencement date of February 10, 2020, 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)  1/48th of the shares issuable pursuant to the Options shall vest each month after the vesting commencement date of February 8, 2021, 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)  1/4th of the shares issuable pursuant to the restricted stock units shall vest one year after the vesting commencement date of November 15, 2017 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.
(6)  Restricted stock units convert into common stock on a one-for-one basis.
(7)  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.
(8)  1/48th of the shares issuable pursuant to the restricted stock units shall vest each month after the vesting commencement date of February 15, 2020, 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.
(9)  1/3rd of the shares issuable pursuant to the restricted stock units shall vest annually after the vesting commencement date of October 15, 2020, 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.
(10)  1/48th of the shares issuable pursuant to the restricted stock units shall vest each month after the vesting commencement date of February 15, 2021, 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.

Remarks:
Exhibit 24 - Power of Attorney

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 4/8/2021
**Signature of Reporting Person Date
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