UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM10-K/A
Amendment No. 2

 
☒	ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934	

For the fiscal year ended December 31, 2021
or
 
☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934	

For the transition period from            to            
Commission file number1-6651

Zendesk, Inc.
(Exact name of registrant as specified in its charter)

 
			
Delaware	 	26-4411091	
(State or other jurisdiction of
incorporation or organization)	 	(I.R.S. Employer
Identification No.)	
 	 	
989 Market Street	 	94103	
San Francisco, California
(Address of principal executive offices)	 	(Zip Code)	

(415) 418-7506
(Registrant’s telephone number, including area code)
SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

Title of each class	 	Trading
Symbol(s)	 	Name of each exchange
on which registered	
Common Stock, par value $0.01 per share	 	ZEN	 	New York Stock Exchange	

SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT:None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ☒    No  ☐
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.     Yes  ☐    No  ☒
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 ofRegulation S-T(§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, anon-acceleratedfiler, a smaller reporting company, or emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” inRule 12b-2of the Exchange Act. (Check one):

Large Accelerated Filer	 	☒	  	Accelerated Filer	 	☐	
 	 	 	 	
Non-acceleratedFiler	 	☐	  	Smaller reporting company	 	☐	
 	 	 	 	
 	 	 	  	Emerging growth company	 	☐	

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.     Yes  ☒    No  ☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2of the Act).    Yes  ☐    No  ☒

Auditor Firm:	  	Auditor Firm ID:	  	Auditor Firm Location:	
Ernst & Young LLP	  	42	  	San Jose, California	
The aggregate market value of common stock held bynon-affiliatesof the Registrant, computed by reference to the price at which the common stock was last sold on June 30, 2022, the last business day of the Registrant’s most recently completed second fiscal quarter, as reported on the New York Stock Exchange, was approximately $9 billion. Shares of common stock held by each executive officer, director and holder of 5% or more of the outstanding common stock have been excluded in that such persons may be deemed to be affiliates. This determination of affiliate status does not reflect a determination that such persons are affiliates of the Registrant for any other purpose.
The number of shares of the Registrant’s Common Stock outstanding as of June 22, 2022 was 123,270,893.

 

EXPLANATORY NOTE
Zendesk, Inc. (“Zendesk,” the “Company,” the “Registrant” or “we”) filed its Annual Report onForm 10-Kfor the fiscal year ended December 31, 2021 (the “Original Filing”) with the U.S. Securities and Exchange Commission (the “SEC”) on February 15, 2022 and, on May 2, 2022, filed Amendment No. 1 to the Original Filing (“Amendment No. 1”) solely to disclose the information required in Part III (Items 10, 11, 12, 13 and 14) of the Original Filing, which information was previously omitted from the Original Filing in reliance on General Instruction G(3) to Form10-K. Dueto printer error, an incorrect version of Amendment No. 1 was filed, which omitted page 37 of Amendment No. 1 and duplicated page 38 of Amendment No.1. This Amendment No. 2 to the Original Filing is being filed solely to correct the printer error and to supplement Amendment No. 1 with the omitted page 37.
Pursuant to Rule12b-15under the Exchange Act, the Company is including Item 15 of Part IV of this Amendment No. 2, solely to file the certifications required under Section 302 of the Sarbanes-Oxley Act of 2002. Because no financial statements have been included in this Amendment No. 2 and this Amendment No. 2 does not contain or amend any disclosure with respect to Items 307 and 308 of RegulationS-K,paragraphs 3, 4, and 5 of the certifications have been omitted. We are also not including the certifications under Section 906 of Sarbanes-Oxley Act of 2002 as no financial statements are being filed with this Amendment No. 2.
Except as described above, this Amendment No. 2 does not amend any other information set forth in the Original Filing or Amendment No. 1, and we have not updated disclosures included therein to reflect any subsequent events. This Amendment No. 2 should be read in conjunction with the Original Filing, Amendment No. 1 and with our filings with the SEC subsequent to the Original Filing, including Amendment No. 1.
PART III
ITEM  11. EXECUTIVE COMPENSATION
The section entitled “Executive Compensation—Potential payments upon termination or change in control” starting on page 36 and ending on page 38 of Amendment No. 1 is hereby amended and restated in its entirety with the following:
Potential payments upon termination or change in control
Acceleration of equity awards and severance
Mikkel Svane. In the event of a “sale event” (as defined in the 2009 Plan or the 2014 Plan, as applicable), if Mr. Svane’s employment is terminated by us without “cause” or by Mr. Svane for “good reason” (with definitions consistent with those in the Acceleration Plan) at any time during the period that ends 12 months following the sale event, then 100% of the outstanding and unvested equity awards held by Mr. Svane will be fully accelerated.
Shelagh Glaser. Pursuant to the provisions of the Acceleration Plan, in the event of a “change in control” (as defined in the Acceleration Plan), if Ms. Glaser’s employment is terminated by us without “cause” or by Ms. Glaser for “good reason” (in each case, as defined in the Acceleration Plan) at any time during the period that ends 12 months following the change in control, then 100% of the outstanding and unvested equity awards held by Ms. Glaser will be fully accelerated. Furthermore, if Ms. Glaser’s employment is terminated by us without “cause” prior to the first anniversary of her date of hire, Ms. Glaser is also entitled to receive (subject to her execution of a release of claims) accelerated vesting of an amount of shares subject to the stock option and RSU award granted to her in connection with her hire that would have vested on the first anniversary of the “vesting commencement date” of each award. If Ms. Glaser’s employment was terminated by us without “cause” on December 31, 2021, without the occurrence of a change in control, she would be entitled to (i) a lump sum severance payment equal to $285,000, (ii) a payment of $27,745 in respect of 12 months of benefit coverage (including health insurance, dental insurance, vision insurance, an employee assistance program, and the subscription fee for an application related to mental health services), and (iii) accelerated vesting of her 71,003 new hire stock options and her new hire RSU award in respect of 35,502 shares of Company common stock, which awards would have had an aggregate value of $3,702,503.58 based on the Company’s December 31, 2021 closing stock price of $104.29 per share.
Alex Constantinople. Pursuant to the provisions of the Acceleration Plan, in the event of a “change in control” (as defined in the Acceleration Plan), if Ms. Constantinople’s employment is terminated by us without “cause” or by Ms. Constantinople for “good reason” (in each case, as defined in the Acceleration Plan) at any time during the period that ends 12 months following the change in control, then 100% of the outstanding and unvested equity awards held by Ms. Constantinople will be fully accelerated. Additionally, pursuant to the provisions of her offer letter, in the event that Ms. Constantinople’s employment is terminated by us without “cause”, Ms. Constantinople will be entitled (subject to her execution of a release of claims) to a lump sum amount equal to twelve months of her base salary in effect at the time of termination. Furthermore, if Ms. Constantinople’s employment is terminated by us without “cause” prior to the first anniversary of her date of hire, Ms. Constantinople is entitled to receive (subject to her execution of a release of claims)

accelerated vesting of an amount of shares subject to the stock option and RSU award granted to her in connection with her hire that would have vested on the first anniversary of the “vesting commencement date” of each award. If Ms. Constantinople’s employment was terminated by us without “cause” on December 31, 2021, without the occurrence of a change in control, she would be entitled to (i) a lump sum severance payment equal to $261,539, and (ii) accelerated vesting of her 48,893 new hire stock options and her new hire RSU award in respect of 24,447 shares of Company common stock, which awards would have had an aggregate value of $2,549,577.63 based on the Company’s December 31, 2021 closing stock price of $104.29 per share.
Norman Gennaro. Pursuant to the provisions of the Acceleration Plan, in the event of a “change in control” (as defined in the Acceleration Plan), if Mr. Gennaro’s employment is terminated by us without “cause” or by Mr. Gennaro for “good reason” (in each case, as defined in the Acceleration Plan) at any time during the period that ends 12 months following the change in control, then 100% of the outstanding and unvested equity awards held by Mr. Gennaro will be fully accelerated.
Adrian McDermott. Pursuant to the provisions of the Acceleration Plan, in the event of a “change in control” (as defined in the Acceleration Plan), if Mr. McDermott’s employment is terminated by us without “cause” or by Mr. McDermott for “good reason” (in each case, as defined in the Acceleration Plan) at any time during the period that ends 12 months following the change in control, then 100% of the outstanding and unvested equity awards held by Mr. McDermott will be fully accelerated.
Elena Gomez. Pursuant to the provisions of the Acceleration Plan, in the event of a “change in control” (as defined in the Acceleration Plan), if Ms. Gomez’s employment had been terminated by us without “cause” or by Ms. Gomez for “good reason” (in each case, as defined in the Acceleration Plan) at any time during the period that ends 12 months following the change in control, then 100% of the outstanding and unvested equity awards held by Ms. Gomez would have been fully accelerated. Ms. Gomez’s employment with the Company terminated May 5, 2021.
Marc Cabi. Pursuant to the provisions of the Acceleration Plan, in the event of a “change in control” (as defined in the Acceleration Plan), if Mr. McDermott’s employment had been terminated by us without “cause” or by Mr. McDermott for “good reason” (in each case, as defined in the Acceleration Plan) at any time during the period that ends 12 months following the change in control, then 100% of the outstanding and unvested equity awards held by Mr. McDermott would have been fully accelerated. Mr. Cabi’s employment with the Company terminated November 8, 2021.
Value of potential payments upon termination or change in control
PAYMENT ON QUALIFYING TERMINATION IN CONNECTION WITH CHANGE IN CONTROL($)(1)

	Name	  	Value of
Accelerated
Stock
Options
($)(2)	 	  	Value of
Accelerated
Restricted
Stock Units
($)(3)	 	  	Total
($)	 	
Mikkel Svane,	  	 	1,286,317	 	  	 	5,352,789	 	  	 	6,639,106	 		
Chief Executive Officer	  	 	 	 	  	 	 	 	  	 	 	 		
Shelagh Glaser,	  	 	0	 	  	 	3,702,504	 	  	 	3,702,504	 		
Chief Financial Officer	  	 	 	 	  	 	 	 	  	 	 	 		
Adrian McDermott,	  	 	878,648	 	  	 	3,392,449	 	  	 	4,271,097	 		
Chief Technology Officer	  	 	 	 	  	 	 	 	  	 	 	 		
Norman Gennaro,	  	 	767,326	 	  	 	2,966,320	 	  	 	3,733,646	 		
President, Worldwide Sales	  	 	 	 	  	 	 	 	  	 	 	 		
Alex Constantinople,	  	 	0	 	  	 	2,549,578	 	  	 	2,549,578	 		
Chief Marketing Officer	  	 	 	 	  	 	 	 	  	 	 	 		
Marc Cabi,	  	 	0	 	  	 	0	 	  	 	0	 		
Former Deputy Chief Financial Officer and Interim Principal Financial Officer	  	 	 	 	  	 	 	 	  	 	 	 		
Elena Gomez,	  	 	0	 	  	 	0	 	  	 	0	 		
Former Chief Financial Officer	  	 	 	 	  	 	 	 	  	 	 	 		

(1)	A qualifying event for a Named Executive Officer is deemed to occur when the conditions set forth in the section “Potential Payments upon Termination or Change in Control—Acceleration of Equity Awards” have been met.	

(2)	Based on a common stock price of $104.29, equal to the closing market price of the Company’s common stock on December 31, 2021, the last trading day of fiscal year 2021, less the applicable exercise price for each option for which vesting would have been accelerated.	

(3)	Based on a common stock price of $104.29, equal to the closing market price of the Company’s common stock on December 31, 2021, the last trading day of fiscal year 2021, for each Restricted Stock Unit for which vesting would have been accelerated.	

PART IV
ITEM 15. EXHIBITSANDFINANCIALSTATEMENTSCHEDULES
(a) The following documents are filed as a part of this report:
 
1.	Financial Statements:	

The financial statements listed on the Index to Consolidated Financial Statements in Item 8 of the Original Filing are included in Item 8 of the Original Filing.
 
2.	Financial Statement Schedules	

Schedules not listed above have been omitted because the information required to be set forth therein is not applicable or is shown in the financial statements or notes herein.
 
3.	Exhibits	

The documents listed in the Exhibit Index of this report are incorporated by reference or are filed with this report, in each case as indicated therein.

Exhibit
Number	  	Exhibit Description	  	Incorporated by Reference	
			  	Form	  	File No.	  	Exhibit	  	Filing Date	
						
  2.1	  	Agreement and Plan of Merger, dated as of October 28, 2021, by and among Zendesk, Inc., Milky Way Acquisition Corp. and Momentive Global Inc.	  	8-K	  	001-36456	  	2.1	  	October 29,
2021	
						
  3.1	  	Amended and Restated Certificate of Incorporation of the Registrant.	  	10-Q	  	001-36456	  	3.1	  	August 7,
2014	
						
  3.2	  	Amended and Restated By-laws of the Registrant.	  	10-Q	  	001-36456	  	3.2	  	July 30,
2021	
						
  4.1	  	Form of Common Stock Certificate of the Registrant.	  	S-1/A	  	333-195176	  	4.1	  	May 5, 2014	
						
  4.2	  	Description of Registrant’s Securities Registered Pursuant to Section 12 of the Securities Act of 1934.	  	10-K	  	001-36456	  	4.2	  	February 13,
2020	
						
  4.3	  	Indenture, dated as of June 16, 2020, between Zendesk, Inc. and Wilmington Trust, National Association, as Trustee.	  	8-K	  	001-36456	  	4.1	  	June 17,
2020	
						
  4.4	  	Form of 0.625% Convertible Senior Notes due 2025 (included as Exhibit A of Exhibit 4.3)	  	8-K	  	001-36456	  	4.2	  	June 17,
2020	
						
10.1#       	  	2009 Stock Option and Grant Plan, as amended, and related form agreements.	  	S-1	  	333-195176	  	10.2	  	April 10,
2014	

											
10.2#	  	2014 Stock Option and Incentive Plan, and related form agreements.	  	10-K	  	001-36456	  	10.2	  	February 15, 2022	
						
10.3#	  	Amendment No. 1 to the 2014 Stock Option and Incentive Plan.	  	10-K/A	  	001-36456	  	10.3	  	May 2, 2022	
						
10.4#	  	2014 Employee Stock Purchase Plan, as amended.	  	10-Q	  	001-36456	  	10.2	  	November 6, 2014	
						
10.5#	  	Form of Inducement Option Agreement.	  	8-K	  	001-36456	  	10.1	  	May 6, 2016	
						
10.6#	  	Form of Inducement RSU Agreement.	  	8-K	  	001-36456	  	10.2	  	May 6, 2016	
						
10.7#	  	Offer Letter between the Registrant and Adrian McDermott, dated as of June 16, 2010.	  	S-1	  	333-195176	  	10.7	  	April 10, 2014	
						
10.8#	  	Offer Letter between the Registrant and John Geschke, dated as of May 30, 2012.	  	10-K	  	001-36456	  	10.9	  	February 26, 2016	
						
10.9#	  	Offer Letter between the Registrant and Elena Gomez, dated as of April 6, 2016.	  	10-K	  	001-36456	  	10.9	  	February 27, 2017	
						
10.10#	  	Offer Letter between the Registrant and Tom Keiser, dated as of March 29, 2016.	  	10-K	  	001-36456	  	10.10	  	February 27, 2017	
						
10.11#	  	Offer Letter between the Registrant and Norman Gennarro, dated as of November 26, 2017.	  	10-K	  	001-36456	  	10.11	  	February 22, 2018	
						
10.12#	  	Offer Letter between the Registrant and Jeffrey Titterton, dated as of April 6, 2017.	  	10-K	  	001-36456	  	10.12	  	February 22, 2018	
						
10.13#	  	Offer Letter between the Registrant and InaMarie Johnson, dated as of April 23, 2018.	  	10-K	  	001-36456	  	10.13	  	February 14, 2019	
						
10.14#	  	Offer Letter between the Registrant and Alex Constantinople, dated as of March 3, 2021.	  	8-K	  	001-36456	  	10.1	  	May 3, 2021	
						
10.15#	  	Offer Letter between the Registrant and Shelagh Glaser, dated as of April 27, 2021.	  	8-K	  	001-36456	  	10.2	  	May 3, 2021	
						
10.16#	  	Letter between the Registrant and Adrian McDermott, dated as of April 6, 2021.	  	8-K	  	001-36456	  	10.3	  	May 3, 2021	
						
10.17#	  	Letter between the Registrant and Jeffrey Titterton, dated as of April 6, 2021.	  	8-K	  	001-36456	  	10.4	  	May 3, 2021	
						
10.18#     	  	Offer Letter between the Registrant and Michael Curtis, dated as of January 21, 2022.	  	10-K/A	  	001-36456	  	10.17	  	May 2, 2022	
						
10.19	  	Office Lease between the Registrant and 989 Market Street, LLC, dated as of April 29, 2011.	  	S-1	  	333-195176	  	10.8	  	April 10, 2014	

											
10.20	  	First Amendment to Lease between the Registrant and 989 Market Street, LLC, dated as of June 28, 2011.	  	S-1	  	333-195176	  	10.9	  	April 10, 2014	
						
10.21	  	Second Amendment to Lease between the Registrant and 989 Market Street, LLC, dated as of August 11, 2011.	  	S-1	  	333-195176	  	10.10	  	April 10, 2014	
						
10.22	  	Third Amendment to Lease between the Registrant and HMC Mid-Market Ventures LLC, dated as of September 11, 2013.	  	S-1	  	333-195176	  	10.11	  	April 10, 2014	
						
10.23	  	Fourth Amendment to Lease between the Registrant and ASB 989 Market, LLC, dated as of January 19, 2017.	  	10-Q	  	001-36456	  	10.1	  	May 8, 2017	
						
10.24	  	Fifth Amendment to Lease between the Registrant and ASB 989 Market, LLC, dated as of August 2, 2017.	  	10-Q	  	001-36456	  	10.1	  	November 3,
2017	
						
10.25	  	Sixth Amendment to Lease between the Registrant and ASB 989 Market, LLC, dated as of January 25, 2019.	  	10-K	  	001-36456	  	10.20	  	February 14,
2019	
						
10.26	  	Seventh Amendment to Lease between the Registrant and ASB 989 Market, LLC, dated as of December 17, 2019.	  	10-K	  	001-36456	  	10.20	  	February 13,
2020	
						
10.27	  	Eighth Amendment to Lease between the Registrant and ASB 989 Market, LLC, dated as of December 17, 2019.	  	10-K	  	001-36456	  	10.21	  	February 13,
2020	
						
10.28	  	Lease Agreement between the Registrant and 1019 Market St. Property, LLC, dated as of September 6, 2013, as amended.	  	10-Q	  	001-36456	  	10.1	  	November 6,
2014	
						
10.29	  	Lease by and between Zendesk, Inc. and 1035 Market Street, LLC., dated June 22, 2016.	  	8-K	  	001-36456	  	10.1	  	June 27, 2016	
						
10.30	  	Lease Agreement by and between Marlin Cove, Inc. and SF Prosperity I, LLC, as tenants in common and the Registrant, dated as of June 22, 2018.	  	10-Q	  	001-36456	  	10.2	  	August 3, 2018	
						
10.31	  	Indenture, dated as of March 20, 2018, between Zendesk, Inc., and Wilmington Trust, National Association, as trustee.	  	8-K	  	001-36456	  	4.1	  	March 20, 2018	
						
10.32	  	Form of 0.25% Convertible Senior Notes due 2023.	  	8-K	  	001-36456	  	4.1	  	March 20, 2018	
						
10.33	  	Form of Capped Call Confirmation.	  	8-K	  	001-36456	  	10.1	  	March 20, 2018	
						
10.34#     	  	Amended and Restated Non-Employee Director Compensation Policy.	  	8-K	  	001-36456	  	10.1	  	April 29, 2021	

											
10.35#	  	Amended and Restated Executive Incentive Bonus Plan.	  	8-K	  	001-36456	  	10.1	  	April 6, 2021	
						
10.36#	  	Zendesk, Inc. Change in Control Acceleration Plan.	  	8-K	  	001-36456	  	10.1	  	May 15, 2015	
						
10.37#	  	Forms of Indemnification Agreement.	  	8-K	  	001-36456	  	10.1	  	July 30, 2021	
						
10.38	  	Form of Capped Call Transaction Confirmation.	  	8-K	  	001-36456	  	10.1	  	June 17, 2020	
						
10.39	  	Voting Agreement, dated as of October 28, 2021, by and among Zendesk, Inc., Momentive Global Inc. and Ryan Nabil Finley.	  	8-K	  	001-36456	  	10.1	  	October 29, 2021	
						
10.40	  	Voting Agreement, dated as of October 28, 2021, by and among Zendesk, Inc., Momentive Global Inc. and Sheryl K Sandberg Revocable Trust Dated 9/3/2004.	  	8-K	  	001-36456	  	10.2	  	October 29, 2021	
						
10.41	  	Voting Agreement, dated as of October 28, 2021, by and among Zendesk, Inc., Momentive Global Inc. and SM Profits, LLC.	  	8-K	  	001-36456	  	10.3	  	October 29, 2021	
						
10.42	  	Voting Agreement, dated as of October 28, 2021, by and among Zendesk, Inc., Momentive Global Inc. and Alexander Joseph Lurie.	  	8-K	  	001-36456	  	10.4	  	October 29, 2021	
						
10.43	  	Voting Agreement, dated as of October 28, 2021, by and among Zendesk, Inc., Momentive Global Inc. and Eliza and Larry Becker Family 2018 Irrevocable Trust Dated May 31, 2018.	  	8-K	  	001-36456	  	10.5	  	October 29, 2021	
						
10.44	  	Voting Agreement, dated as of October 28, 2021, by and among Zendesk, Inc., Momentive Global Inc. and Jason and Jennifer Lurie Family 2018 Irrevocable Trust Dated May 31, 2018.	  	8-K	  	001-36456	  	10.6	  	October 29, 2021	
						
10.45	  	Voting Agreement, dated as of October 28, 2021, by and among Zendesk, Inc., Momentive Global Inc. and Scott and Caitlin Vogelsong Family 2018 Irrevocable Trust Dated May 31, 2018.	  	8-K	  	001-36456	  	10.7	  	October 29, 2021	
						
10.46#     	  	Death and Leave of Absence Policy.	  	10-K	  	001-36456	  	10.45	  	February 15, 2022	
						
21.1	  	List of Significant Subsidiaries of the Registrant.	  	10-K	  	001-36456	  	21.1	  	February 15, 2022	
						
23.1	  	Consent of Independent Registered Public Accounting Firm.	  	10-K	  	001-36456	  	23.1	  	February 15, 2022	
						
24.1	  	Power of Attorney (see Part IV of the Original Filing).	  	10-K	  	001-36456	  	24.1	  	February 15, 2022	

											
31.1	  	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	  		  		  		  		
						
31.2	  	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	  		  		  		  		
						
32.1	  	Certifications of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.*	  	10-K	  	001-36456	  	32.1	  	February 15,
2022	
						
101.SCH	  	Inline XBRL Taxonomy Extension Schema Document.	  		  		  		  		
						
101.CAL	  	Inline XBRL Taxonomy Extension Calculation Linkbase Document.	  		  		  		  		
						
101.DEF	  	Inline XBRL Taxonomy Extension Definition Linkbase Document.	  		  		  		  		
						
101.LAB	  	Inline XBRL Taxonomy Extension Label Linkbase Document.	  		  		  		  		
						
101.PRE 	  	Inline XBRL Taxonomy Extension Presentation Linkbase Document.	  		  		  		  		
						
104	  	Cover Page with Interactive Data File (formatted as Inline XBRL with applicable taxonomy extension information contained in Exhibits 101).	  		  		  		  		

#	Indicates management contract or compensatory plan, contract, or agreement.	

*	Furnished previously with the Original Filing.	

ITEM 16. FORM10-KSUMMARY
Not applicable.

SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on July 1, 2022.

ZENDESK, INC.	
		
By:	 	/s/ Shelagh Glaser	
Name:	 	Shelagh Glaser	
Title:	 	Chief Financial Officer	

Exhibit 31.1
Certification of Chief Executive Officer
I, Mikkel Svane, Chief Executive Officer of Zendesk, Inc., certify that:
 
 	1.	I have reviewed this Amendment No. 2 to the Annual Report on Form 10-K/A of Zendesk, Inc.; and	
 
 	2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.	
Date: July 1, 2022

/s/ Mikkel Svane	
Mikkel Svane
Chief Executive Officer	

Exhibit 31.2
Certification of Chief Financial Officer
I, Shelagh Glaser, Chief Financial Officer of Zendesk, Inc., certify that:
 
 	1.	I have reviewed this Amendment No. 2 to the Annual Report on Form 10-K/A of Zendesk, Inc.; and	
 
 	2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.	
Date: July 1, 2022

/s/ Shelagh Glaser	
Shelagh Glaser
Chief Financial Officer