EX-10.1





 Exhibit 10.1 

[Dealer name and address] 
  

			
	 To:
	  	 Zendesk, Inc.
 1019 Market Street 
San
Francisco, CA 94103

		
	 From:
	  	 [Dealer]

		
	 Re:
	  	 [Base][Additional] Capped Call Transaction

		
	 Date:
	  	 June [11], 2020


 Dear Ladies and Gentlemen: 
 The
purpose of this communication (this “Confirmation”) is to set forth the terms and conditions of the above-referenced transaction entered into on the Trade Date specified below (the “Transaction”) between
[Dealer] (“Dealer”) and Zendesk, Inc. (“Counterparty”). This communication constitutes a “Confirmation” as referred to in the ISDA Master Agreement specified below. 

1. This Confirmation is subject to, and incorporates, the definitions and provisions of the 2006 ISDA Definitions (the “2006
Definitions”) and the definitions and provisions of the 2002 ISDA Equity Derivatives Definitions (the “Equity Definitions”, and together with the 2006 Definitions, the “Definitions”), in each case as
published by the International Swaps and Derivatives Association, Inc. (“ISDA”). In the event of any inconsistency between the 2006 Definitions and the Equity Definitions, the Equity Definitions will govern and in the event of any
inconsistency between terms defined in the Equity Definitions and this Confirmation, this Confirmation shall govern. 
 This Confirmation
evidences a complete and binding agreement between Dealer and Counterparty as to the terms of the Transaction to which this Confirmation relates. This Confirmation shall be subject to an agreement (the “Agreement”) in the form of
the 2002 ISDA Master Agreement as if Dealer and Counterparty had executed an agreement in such form on the Trade Date (but without any Schedule except for (i) the election of the laws of the State of New York as the governing law (without
reference to choice of law doctrine, [(ii) the election of an executed guarantee of [            ] (“Guarantor”) dated as of the Trade Date in substantially the form
attached hereto as Schedule 1 as a Credit Support Document, (iii) the election of Guarantor as Credit Support Provider in relation to Dealer]1 and [(ii)][(iv)] the election that the
“Cross Default” provisions of Section 5(a)(vi) of the Agreement shall apply to Dealer, (a) with a Threshold Amount” of 3% of the shareholders’ equity of [Dealer’s ultimate parent][Dealer]2 on the Trade Date, (b) “Specified Indebtedness” having the meaning set forth in Section 14 of the Agreement, except that it shall not include any obligation in respect of deposits
received in the ordinary course of Dealer’s banking business, (c) the phrase “, or becoming capable at such time of being declared,” shall be deleted from clause (1) of such Section 5(a)(vi) of the Agreement, and
(d) the following sentence shall be added to the end of Section 5(a)(vi) of the Agreement: “Notwithstanding the foregoing, a default under subsection (2) hereof shall not constitute an Event of Default if (i) the default was
caused solely by error or omission of an administrative or operational nature; (ii) funds were available to enable the relevant party to make payment when due; and (iii) the payment is made within two Local Business Days of such
party’s receipt of written notice of its failure to pay.”). 
 All provisions contained in, or incorporated by reference to, the
Agreement will govern this Confirmation except as expressly modified herein. In the event of any inconsistency between this Confirmation and either the Definitions or the Agreement, this Confirmation shall govern. 

The Transaction hereunder shall be the sole Transaction under the Agreement. If there exists any ISDA Master Agreement between Dealer and
Counterparty or any confirmation or other agreement between Dealer and Counterparty pursuant to which an ISDA Master Agreement is deemed to exist between Dealer and Counterparty, then notwithstanding anything to the contrary in such ISDA Master
Agreement, such confirmation or agreement or any other agreement to which Dealer and Counterparty are parties, the Transaction shall not be considered a Transaction under, or otherwise governed by, such existing or deemed ISDA Master Agreement. 

 
  

	1 	 Requested if Dealer is not the highest rated entity in group, typically from Parent. 



	2 	 Include as appropriate for Dealer. 














 2. The Transaction constitutes a Share Option Transaction for purposes of the Equity
Definitions. The terms of the particular Transaction to which this Confirmation relates are as follows: 
 General Terms: 

 

			
	 Trade Date:
	  	 June [11], 2020

		
	 Effective Date:
	  	June [16], 2020, or such other date as agreed by the parties in writing.
		
	 Components:
	  	The Transaction will be divided into individual Components, each with the terms set forth in this Confirmation, and, in particular, with the Number of Options and Expiration Date set forth in Annex A to this Confirmation. The
exercise, valuation and settlement of the Transaction will be effected separately for each Component as if each Component were a separate Transaction under the Agreement.
		
	 Option Style:
	  	“European”, as described under “Procedures for Exercise” below.
		
	 Option Type:
	  	 Call

		
	 Seller:
	  	 Dealer

		
	 Buyer:
	  	 Counterparty

		
	 Shares:
	  	The common stock of Counterparty, par value USD 0.01 per share (Exchange symbol “ZEN”).
		
	 Number of Options:
	  	 For each Component, as provided in Annex A to this Confirmation.3

		
	 Option Entitlement:
	  	 One Share per Option

		
	 Strike Price:
	  	 USD
[            ]

		
	 Cap Price:
	  	USD [            ]; provided that in no event shall the Cap Price be reduced to an amount less than the Strike Price in connection with any adjustment by the
Calculation Agent under this Confirmation.
		
	 Number of Shares:
	  	As of any date, a number of Shares equal to the product of (i) the Number of Options and (ii) the Option Entitlement.
		
	 Premium:
	  	USD [            ] (Premium per Option approximately USD [            ]); Dealer and Counterparty
hereby agree that notwithstanding anything to the contrary herein or in the Agreement, following the payment of the Premium, in the event that (a) an Early Termination Date (whether as a result of an Event of Default or a Termination Event)
(other than an Event of Default arising under Section 5(a)(ii) or 5(a)(iv) of the Agreement that is within Counterparty’s control) occurs or is designated with respect to any Transaction and, as a result, Counterparty owes to Dealer the
amount calculated under Section 6(d) and Section 6(e) or otherwise under the Agreement (calculated as if the


 

	3 	 For the base capped call, the total should be equal to (i) the number of Convertible Notes (as defined
herein) in principal amount of $1,000 initially issued on the closing date for the Convertible Notes (excluding any Convertible Notes sold pursuant to the over-allotment option) multiplied by (ii) the relevant initial
conversion rate. For the additional capped call, the total should be equal to (i) the number of additional Convertible Notes in principal amount of $1,000 multiplied by (ii) the relevant initial conversion rate.




  
 2 














			
		  	Transactions terminated on such Early Termination Date were the sole Transactions under the Agreement) or (b) Counterparty owes to Dealer, pursuant to Sections 12.2, 12.3, 12.6, 12.7, 12.8 or 12.9 of the Equity Definitions or
otherwise under the Equity Definitions, an amount calculated under Section 12.8 of the Equity Definitions, such amount shall be deemed to be zero.
		
	 Premium Payment Date:
	  	 The Effective Date

		
	 Exchange:
	  	 The New York Stock Exchange

		
	 Related Exchange:
	  	All Exchanges; provided that Section 1.26 of the Equity Definitions shall be amended to add the words “United States” before the word “exchange” in the tenth line of such Section.
		
	 Procedures for Exercise:
	  	
		
	 Expiration Time:
	  	 The Valuation Time

		
	 Expiration Date:
	  	For any Component, as provided in Annex A to this Confirmation (or, if such date is not a Scheduled Valid Day, the next following Scheduled Valid Day that is not already an Expiration Date for another Component);
provided that if that date is a Disrupted Day, the Expiration Date for such Component shall be the first succeeding Scheduled Valid Day that is not a Disrupted Day and is not or is not deemed to be an Expiration Date in respect of any other
Component of the Transaction hereunder; and provided further that in no event shall the Expiration Date be postponed to a date later than the Final Termination Date and, notwithstanding anything to the contrary in this Confirmation or the
Equity Definitions, if the Expiration Date is a Disrupted Day, the Relevant Price for such Expiration Date shall be the prevailing market value per Share determined by the Calculation Agent in a good faith and commercially reasonable manner.
Notwithstanding the foregoing and anything to the contrary in the Equity Definitions, if a Market Disruption Event occurs on any Expiration Date, the Calculation Agent may determine in a good faith and commercially reasonable manner that such
Expiration Date is a Disrupted Day only in part, in which case the Calculation Agent shall make commercially reasonable adjustments to the Number of Options for the relevant Component for which such day shall be the Expiration Date, shall designate
the Scheduled Valid Day determined in the manner described in the immediately preceding sentence as the Expiration Date for the remaining Options for such Component and may determine the Relevant Price based on transactions in the Shares on such
Disrupted Day taking into account the nature and duration of such Market Disruption Event on such day. Any Scheduled Valid Day on which, as of the date hereof, the Exchange is scheduled to close prior to its normal close of trading shall be deemed
not to be a Scheduled Valid Day; if a closure of the Exchange prior to its normal close of trading on any Scheduled Valid Day is scheduled following the date hereof, then such Scheduled Valid Day shall be deemed to be a Disrupted Day in full.
Section 6.6 of the Equity Definitions shall not apply to any Valuation Date occurring on an Expiration Date.
		
	 Final Termination Date:
	  	 October [6], 2025



  
 3 














			
	 Automatic Exercise:
	  	Applicable; and means that the Number of Options for the relevant Component will be deemed to be automatically exercised at the Expiration Time on the Expiration Date for such Component if at such time such Component is In-the-Money, unless Buyer notifies Seller (in writing) prior to the Expiration Time on such Expiration Date that it does not wish Automatic Exercise to occur with respect to
such Component, in which case Automatic Exercise will not apply with respect to such Component. “In-the-Money” means, in respect of any Component, that
the Relevant Price on the Expiration Date for such Component is greater than the Strike Price for such Component.
		
	 Valuation Time:
	  	At the close of trading of the regular trading session on the Exchange; provided that if the principal trading session is extended, the Calculation Agent shall determine the Valuation Time in a good faith and commercially
reasonable manner.
		
	 Valuation Date:
	  	 For any Component, the Expiration Date therefor.

		
	 Market Disruption Event:
	  	 Section 6.3(a) of the Equity Definitions is hereby amended by deleting the words “during the one hour period that ends at the
relevant Valuation Time, Latest Exercise Time, Knock-in Valuation Time or Knock-out Valuation Time, as the case may be,” in clause (ii) thereof.

 
 Section 6.3(d) of the Equity Definitions is hereby amended by deleting the
remainder of the provision following the term “Scheduled Closing Time” in the fourth line thereof.

		
	 Settlement Terms:
	  	
		
	 Settlement Method Election:
	  	 Applicable; provided that (a) Section 7.1 of the Equity Definitions is hereby amended by replacing the term “Physical
Settlement” with the term “Net Share Settlement”, (b) Counterparty must make a single irrevocable election for all Components and (c) if Counterparty is electing Cash Settlement, such Settlement Method Election would be
effective only if Counterparty represents and warrants to Dealer in writing on the date of such Settlement Method Election that (i) Counterparty is not in possession of any material non-public information
regarding Counterparty or the Shares, and (ii) such election is being made in good faith and not as part of a plan or scheme to evade compliance with the federal securities laws.

 
 Without limiting the generality of the foregoing, Counterparty acknowledges its
responsibilities under applicable securities laws, and in particular Sections 9 and 10(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and the rules and regulations promulgated thereunder in respect of
such election.

		
	 Electing Party:
	  	 Counterparty

		
	 Settlement Method Election Date:
	  	The second Scheduled Valid Day prior to the scheduled Expiration Date for the Component with the earliest scheduled Expiration Date.
		
	 Default Settlement Method:
	  	 Net Share Settlement

		
	 Net Share Settlement:
	  	 With respect to any Component, if Net Share Settlement is applicable to the Options exercised or deemed exercised hereunder, Dealer will
deliver to Counterparty, on the Settlement Date, a number of Shares (the “Net Share Settlement Amount”) equal to (i) the Daily Option Value on the Expiration Date of such Component divided by (ii) the Relevant Price
on such Expiration Date.
  
 Dealer will deliver cash in lieu of any fractional Shares
to be delivered with respect to any Net Share Settlement Amount valued at the Relevant Price for the Expiration Date of such Component.



  
 4 














			
	 Cash Settlement:
	  	With respect to any Component, if Cash Settlement is applicable to the Options exercised or deemed exercised hereunder, in lieu of Section 8.1 of the Equity Definitions, Dealer will pay to Counterparty, on the Settlement Date,
an amount of cash (the “Cash Settlement Amount”) equal to the Daily Option Value on the Expiration Date of such Component.
		
	 Delivery Obligation:
	  	The Net Share Settlement Amount or the Cash Settlement Amount payable or deliverable in respect of all Components on the Settlement Date.
		
	 Daily Option Value:
	  	For any Component, an amount equal to (i) the Number of Options in such Component, multiplied by (ii) the Option Entitlement, multiplied by (iii)(A) the lesser of the Relevant Price on the Expiration Date of such
Component and the Cap Price, minus (B) the Strike Price on such Expiration Date; provided that if the calculation contained in clause (ii) above results in a negative number, the Daily Option Value for such Component shall be
deemed to be zero. In no event will the Daily Option Value be less than zero.
		
	 Valid Day:
	  	A day on which (i) there is no Market Disruption Event and (ii) trading in the Shares generally occurs on the Exchange. If the Shares are not listed, quoted or traded on any U.S. securities exchange or any other market,
“Valid Day” means a Business Day.
		
	 Scheduled Valid Day:
	  	A day that is scheduled to be a Valid Day on the Exchange. If the Shares are not listed, quoted or traded on any U.S. securities exchange or any other market, “Scheduled Valid Day” means a Business Day.
		
	 Business Day:
	  	Any day other than a Saturday, a Sunday or other day on which banking institutions are authorized or required by law, regulation or executive order to close or be closed in the State of New York.
		
	 Relevant Price:
	  	On any Valid Day, the per Share volume-weighted average price as displayed under the heading “Bloomberg VWAP” on Bloomberg page “ZEN <equity> AQR” (or its equivalent successor if such page is not available)
(the “VWAP”) in respect of the period from the scheduled open of trading until the scheduled close of trading of the primary trading session on such Valid Day (or if such volume-weighted average price is unavailable at such time,
the market value of one Share on such Valid Day, as determined by the Calculation Agent in a good faith and commercially reasonable manner using, if practicable, a volume-weighted average method substantially similar to the method for determining
the VWAP). The Relevant Price will be determined without regard to after-hours trading or any other trading outside of the regular trading session trading hours.
		
	 Settlement Date:
	  	For all Components of the Transaction, the date one Settlement Cycle immediately following the Expiration Date for the Component with the latest scheduled Expiration Date.
		
	 Settlement Currency:
	  	 USD

		
	 Other Applicable Provisions:
	  	The provisions of Sections 9.1(c), 9.8, 9.9, 9.11 and 9.12 of the Equity Definitions will be applicable, except that all references in such provisions to “Physically-settled” shall be read as references to “Net Share
Settlement.”


  
 5 














			
	 Representation and Agreement:
	  	Notwithstanding anything to the contrary in the Equity Definitions (including, but not limited to, Section 9.11 thereof), the parties acknowledge that (i) any Shares delivered to Counterparty shall be, upon delivery,
subject to restrictions, obligations and limitations arising from Counterparty’s status as issuer of the Shares under applicable securities laws, (ii) Dealer may deliver any Shares required to be delivered hereunder in certificated form in
lieu of delivery through the Clearance System and (iii) any Shares delivered to Counterparty may be “restricted securities” (as defined in Rule 144 under the Securities Act of 1933, as amended (the “Securities
Act”)).
		
	 Adjustments:
	  	
		
	 Method of Adjustment:
	  	Calculation Agent Adjustment; provided that the parties agree that (x) open market Share repurchases at prevailing market prices and (y) Share repurchases through a dealer pursuant to accelerated share
repurchases, forward contracts or similar transactions (including, without limitation, any discount to average VWAP prices) that are entered into at prevailing market prices and in accordance with customary market terms for transactions of such type
to repurchase the Shares shall not be considered Potential Adjustment Events so long as, in the case of clause (y), after giving effect to such transaction, the aggregate number of Shares repurchased during the term of the Transaction pursuant to
all such transactions described in clause (y) would not exceed 20% of the number of Shares outstanding as of the Trade Date, as determined by the Calculation Agent and as adjusted by the Calculation Agent to account for any subdivision or
combination with respect to the Shares.
		
	 Extraordinary Events:
	  	
		
	 New Shares:
	  	In the definition of New Shares in Section 12.1(i) of the Equity Definitions, the text in clause (i) thereof shall be deleted in its entirety and replaced with “publicly quoted, traded or listed on any of The New York
Stock Exchange, The NASDAQ Global Market or The NASDAQ Global Select Market (or their respective successors) and of an entity or person organized under the laws of the United States, any State thereof or the District of Columbia”.
		
	 Merger Events:
	  	 Applicable

		
	 Consequences of Merger Events:
	  	
		
	
(a)    
Share-for-Share:
	  	 Modified Calculation Agent Adjustment

		
	
(b)    
Share-for-Other:
	  	 Cancellation and Payment (Calculation Agent Determination)

		
	
(c)    
Share-for-Combined:
	  	Cancellation and Payment (Calculation Agent Determination); provided that the Calculation Agent may elect Component Adjustment for all or part of the Transaction
		
	 Tender Offer:
	  	Applicable; provided that the definition of “Tender Offer” in Section 12.1(d) of the Equity Definitions will be amended by replacing “10%” with
“20%”.


  
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	 Consequences of Tender Offers:
	  	
		
	
(a)    
Share-for-Share:
	  	 Modified Calculation Agent Adjustment

		
	
(b)    
Share-for-Other:
	  	 Modified Calculation Agent Adjustment

		
	
(c)    
Share-for-Combined:
	  	 Modified Calculation Agent Adjustment

		
	 Consequences of Announcement Events:
	  	Modified Calculation Agent Adjustment as set forth in Section 12.3(d) of the Equity Definitions; provided that, in respect of an Announcement Event, (x) references to “Tender Offer” shall be replaced by
references to “Announcement Event” and references to “Tender Offer Date” shall be replaced by references to “date of such Announcement Event”, (y) the phrase “exercise, settlement, payment or any other terms of the
Transaction (including, without limitation, the spread)” shall be replaced with the phrase “Cap Price (provided that in no event shall the Cap Price be less than the Strike Price)” and the words “whether within a
commercially reasonable (as determined by the Calculation Agent) period of time prior to or after the Announcement Event” shall be inserted prior to the word “which” in the seventh line, and (z) for the avoidance of doubt, the
Calculation Agent shall, in good faith and a commercially reasonable manner, determine whether the relevant Announcement Event has had a material economic effect on the Transaction and, if so, shall adjust the Cap Price accordingly to take into
account such economic effect on one or more occasions on or after the date of the Announcement Event up to, and including, the Expiration Date, any Early Termination Date and/or any other date of cancellation, it being understood that any adjustment
in respect of an Announcement Event shall take into account any earlier adjustment relating to the same Announcement Event and shall not be duplicative with any other adjustment or cancellation valuation made pursuant to this Confirmation, the
Equity Definitions or the Agreement; provided that in no event shall the Cap Price be adjusted to be less than the Strike Price. An Announcement Event shall be an “Extraordinary Event” for purposes of the Equity Definitions, to
which Article 12 of the Equity Definitions is applicable; provided further that upon the Calculation Agent making an adjustment, determined in a commercially reasonable manner, to the Cap Price upon any Announcement Event, then the
Calculation Agent shall make an adjustment to the Cap Price upon any announcement regarding the same event that gave rise to the original Announcement Event regarding the abandonment of any such event to the extent necessary to reflect the economic
effect of such subsequent announcement on the Transaction (provided that in no event shall the Cap Price be less than the Strike Price).
		
	 Announcement Event:
	  	(i) The public announcement (whether by Counterparty, any agent of Counterparty, any affiliate of Counterparty or a Valid Third Party Entity) of any transaction or event that, if completed, would constitute a Merger Event or Tender
Offer, or the announcement by Counterparty of any intention to enter into a Merger Event or Tender Offer, (ii) the public announcement by Counterparty of an intention by Counterparty to solicit or enter into, or to explore strategic
alternatives or other similar undertaking that may include, a Merger Event or Tender Offer, (iii) there occurs a public announcement (whether by Counterparty, any agent of Counterparty, any affiliate of Counterparty or a Valid Third Party
Entity) of any potential acquisition or disposition by


  
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		  	Counterparty and/or its subsidiaries where the consideration exceeds 35% of the market capitalization of Counterparty as of the date of such announcement, or (iv) any subsequent public announcement (whether by Counterparty, any
agent of Counterparty, any affiliate of Counterparty or a Valid Third Party Entity) of a change to a transaction or intention that is the subject of an announcement of the type described in clause (i), (ii) or (iii) of this sentence (including,
without limitation, a new announcement relating to such a transaction or intention or the announcement of a withdrawal from, or the abandonment or discontinuation of, such a transaction or intention); provided that, for the avoidance of
doubt, the occurrence of an Announcement Event with respect to any transaction or intention shall not preclude the occurrence of a later Announcement Event with respect to such transaction or intention.
		
	 Valid Third Party Entity:
	  	In respect of any transaction, any third party that has a bona fide intent to enter into or consummate such transaction (it being understood and agreed that in determining whether such third party has such a bona fide intent, the
Calculation Agent may take into consideration the effect of the relevant announcement by such third party on the Shares and/or options relating to the Shares).
		
	 Notice of Merger Consideration and Consequences:
	  	Upon the occurrence of a Merger Event that causes the Shares to be converted into the right to receive more than a single type of consideration (determined based in part upon any form of stockholder election), Counterparty shall
reasonably promptly (but in any event prior to the relevant Merger Date) notify the Calculation Agent of (i) the type and amount of consideration that a holder of Shares would have been entitled to in the case of reclassifications,
consolidations, mergers, sales or transfers of assets or other transactions that cause Shares to be converted into the right to receive more than a single type of consideration and (ii) the weighted average of the types and amounts of
consideration to be received by the holders of Shares that affirmatively make such an election.
		
	 Nationalization, Insolvency or Delisting:
	  	Cancellation and Payment (Calculation Agent Determination); provided that in addition to the provisions of Section 12.6(a)(iii) of the Equity Definitions, it will also constitute a Delisting if the Shares are not
immediately re-listed, re-traded or re-quoted on any of the New York Stock Exchange, The NASDAQ Global Select Market or The
NASDAQ Global Market (or their respective successors); if the Shares are immediately re-listed, re-traded or re-quoted on any
such exchange or quotation system, such exchange or quotation system shall thereafter be deemed to be the Exchange.
		
	 Additional Termination Event(s):
	  	Notwithstanding anything to the contrary in the Equity Definitions, if, as a result of an Extraordinary Event, the Transaction would be cancelled or terminated (whether in whole or in part) pursuant to Article 12 of the Equity
Definitions, an Additional Termination Event (with the Transaction (or the cancelled or terminated portion thereof) being the Affected Transaction and Counterparty being the sole Affected Party) shall be deemed to occur, and, in lieu of Sections
12.7, 12.8 and 12.9 of the Equity Definitions, Section 6 of the Agreement shall apply to such Affected Transaction.


  
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	 Additional Disruption Events:
	  	
		
	 (a) Change in Law:
	  	Applicable; provided that Section 12.9(a)(ii) of the Equity Definitions is hereby amended by (i) replacing the phrase “the interpretation” in the third line thereof with the phrase “, or public
announcement of, the formal or informal interpretation”, (ii) by adding the phrase “and/or Hedge Position” after the word “Shares” in clause (X) thereof and (iii) by immediately following the word
“Transaction” in clause (X) thereof, adding the phrase “in the manner contemplated by the Hedging Party on the Trade Date”; and provided further that Section 12.9(a)(ii) of the Equity Definitions is hereby
amended by (i) replacing the parenthetical beginning after the word “regulation” in the second line thereof with the words “(including, for the avoidance of doubt and without limitation, (x) any tax law or (y) adoption
or promulgation of new regulations authorized or mandated by existing statute)” and (ii) adding the words “, or holding, acquiring or disposing of Shares or any Hedge Positions relating to,” after the words “obligations
under” in clause (Y) thereof.
		
	 (b) Failure to Deliver:
	  	 Applicable

		
	 (c) Insolvency Filing:
	  	 Applicable

		
	 (d) Hedging Disruption:
	  	 Applicable; provided that:

 
 (i) Section 12.9(a)(v) of the Equity Definitions is hereby amended by inserting the
following sentence at the end of such Section:
  
 “For the avoidance of doubt,
(i) the term “equity price risk” shall be deemed to include, but shall not be limited to, stock price and volatility risk, and (ii) the transactions or assets referred to in phrases (A) or (B) above must be available on
commercially reasonable pricing and other terms.”; and
  
 (ii)
Section 12.9(b)(iii) of the Equity Definitions is hereby amended by inserting in the third line thereof, after the words “to terminate the Transaction”, the words “or a portion of the Transaction affected by such Hedging
Disruption”.

		
	 (e) Increased Cost of Hedging:
	  	 Not Applicable

		
	 Hedging Party:
	  	 Dealer



  
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		  	Determining Party:	  	For all applicable Extraordinary Events, Dealer; all calculations and determinations made by the Determining Party shall be made in good faith and in a commercially reasonable manner; provided that, upon receipt of written
request from Counterparty, the Determining Party shall promptly provide Counterparty with a written explanation describing in reasonable detail any calculation, adjustment or determination made by it (including any quotations, market data or
information from internal or external sources used in making such calculation, adjustment or determination, as the case may be, in a commonly used file format for the storage and manipulation of financial data, but without disclosing Determining
Party’s proprietary models or other information that may be proprietary or subject to contractual, legal or regulatory obligations to not disclose such information), and shall use commercially reasonable efforts to provide such written
explanation within five (5) Exchange Business Days from the receipt of such request.
			
		  	Non-Reliance:	  	Applicable
			
		  	Agreements and Acknowledgments Regarding Hedging Activities:	  	Applicable
			
		  	Additional Acknowledgments:	  	Applicable

 3. Calculation Agent: Dealer; provided that, following the occurrence of an Event of Default of
the type described in Section 5(a)(vii) of the Agreement with respect to which Dealer is the sole Defaulting Party, if the Calculation Agent fails to timely make any calculation, adjustment or determination required to be made by the
Calculation Agent hereunder or to perform any obligation of the Calculation Agent hereunder and such failure continues for five (5) Exchange Business Days following notice to the Calculation Agent by Counterparty of such failure, Counterparty
shall have the right to designate a nationally recognized third-party dealer in over-the-counter corporate equity derivatives to act, during the period commencing on the
date such Event of Default occurred and ending on the Early Termination Date with respect to such Event of Default, as the Calculation Agent. 

All calculations and determinations made by the Calculation Agent shall be made in good faith and in a commercially reasonable manner;
provided that, upon receipt of written request from Counterparty, the Calculation Agent shall promptly provide Counterparty with a written explanation describing in reasonable detail any calculation, adjustment or determination made by it
(including any quotations, market data or information from internal or external sources used in making such calculation, adjustment or determination, as the case may be, but without disclosing Dealer’s proprietary models or other information
that may be proprietary or subject to contractual, legal or regulatory obligations to not disclose such information), and shall use commercially reasonable efforts to provide such written explanation within five (5) Exchange Business Days from
the receipt of such request. 
 4. Account Details: 
  

					
		 	Dealer Payment Instructions:
			
		 	Bank:	 	[                    ]
		 	SWIFT:	 	[                    ]
		 	Bank Routing:	 	[                    ]
		 	Acct Name:	 	[                    ]
		 	Acct No.:	 	[                    ]
		
		 	Counterparty Payment Instructions: To be advised.

 5. Offices: 

The Office of Dealer for the Transaction is: [____________] 

  
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 The Office of Counterparty for the Transaction is: Inapplicable, Counterparty is not a
Multibranch Party. 
 6. Notices: For purposes of this Confirmation: 

(a) Address for notices or communications to Counterparty: 
  

					
		 	To:	 	Zendesk, Inc.
		 		 	1019 Market Street
		 		 	San Francisco CA 94103
		 	Attention:	 	Christina Liu, Chief Accounting Officer
		 	Telephone No.:	 	
		 	Email:	 	cliu@zendesk.com
			
		 	With a copy to:	 	
			
		 	To:	 	Zendesk, Inc.
		 		 	1019 Market Street
		 		 	San Francisco CA 94103
		 	Attention:	 	Molly Pon, Corporate Counsel
		 	Telephone No.:	 	
		 	Email:	 	mopon@zendesk.com

 (b) Address for notices or communications to Dealer: 

 

					
		 	To:	 	[__]
		 		 	[__]
		 		 	[__]
		 	Attention:	 	[__]
		 	Telephone:	 	[__]
		 	Facsimile:	 	[__]
		 	Email:	 	[__]

 7. Representations, Warranties and Agreements:  

(a) In addition to the representations and warranties in the Agreement and those contained elsewhere herein, Counterparty represents and
warrants to and for the benefit of, and agrees with, Dealer as follows: 
 (i) On the Trade Date (A) none of
Counterparty and its officers and directors is aware of any material non-public information regarding Counterparty or the Shares, and (B) all reports and other documents filed by Counterparty with the
Securities and Exchange Commission pursuant to the Exchange Act when considered as a whole (with the more recent such reports and documents deemed to amend inconsistent statements contained in any earlier such reports and documents), do not contain
any untrue statement of a material fact or any omission of a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances in which they were made, not misleading. 

(ii) Counterparty is not on the Trade Date engaged in a “distribution,” as such term is defined in Regulation M under
the Exchange Act (“Regulation M”), of any securities of Counterparty, other than a distribution meeting the requirements of the exceptions set forth in Rules 101(b)(10) and 102(b)(7) of Regulation M. Counterparty shall not, until
the second Exchange Business Day immediately following the Trade Date, engage in any such distribution. 
 (iii) On the Trade
Date, neither Counterparty nor any “affiliated purchaser” (as defined in Rule 10b-18 of the Exchange Act (“Rule 10b-18”)) shall directly
or indirectly (including, without limitation, by means of any cash-settled or other derivative instrument) purchase, offer to purchase, place any bid or limit order that would effect a purchase of, or commence any tender offer relating to, any
Shares (or an equivalent interest, including a unit of beneficial interest in a trust or limited partnership or a depository share) or any security convertible into or exchangeable or exercisable for Shares, except through Dealer. 

  
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 (iv) Without limiting the generality of Section 13.1 of the Equity
Definitions, Counterparty acknowledges that neither Dealer nor any of its affiliates is making any representations or warranties or taking any position or expressing any view with respect to the treatment of the Transaction under any accounting
standards including ASC Topic 260, Earnings Per Share, ASC Topic 815, Derivatives and Hedging, or ASC Topic 480, Distinguishing Liabilities from Equity and ASC 815-40,
Derivatives and Hedging – Contracts in Entity’s Own Equity (or any successor issue statements). 

(v) Without limiting the generality of Section 3(a)(iii) of the Agreement, the Transaction will not violate Rule 13e-1 or Rule 13e-4 under the Exchange Act. 
 (vi)
Prior to the Trade Date, Counterparty shall deliver to Dealer a resolution of Counterparty’s board of directors authorizing the Transaction and approving the Transaction and any related hedging activity for purposes of Section 203 of the
Delaware General Corporation Law. 
 (vii) Counterparty is not entering into this Confirmation to create actual or apparent
trading activity in the Shares (or any security convertible into or exchangeable for Shares) or to manipulate the price of the Shares (or any security convertible into or exchangeable for Shares) or otherwise in violation of the Exchange Act. 

(viii) Counterparty is not, and after giving effect to the transactions contemplated hereby will not be, required to register
as an “investment company,” as such term is defined in the Investment Company Act of 1940, as amended. 
 (ix) To
Counterparty’s knowledge, no U.S. state or local law, rule, regulation or regulatory order applicable to the Shares would give rise to any reporting, consent, registration or other requirement (including without limitation a requirement to
obtain prior approval from any person or entity) as a result of Dealer or its affiliates owning or holding (however defined) Shares; provided that no such representation shall be made by Counterparty with respect to any rules and regulations
applicable to Dealer (including the Financial Industry Regulatory Authority, Inc.) arising from Dealer’s status as a regulated entity under applicable law. 

(x) Counterparty (A) is capable of evaluating investment risks independently, both in general and with regard to all
transactions and investment strategies involving a security or securities; (B) will exercise independent judgment in evaluating the recommendations of any broker-dealer or its associated persons, unless it has otherwise notified the
broker-dealer in writing, (C) has total assets of at least $50 million as of the date hereof. 
 (xi) On and
immediately after the Trade Date and the Premium Payment Date, (A) the value of the total assets of Counterparty is greater than the sum of the total liabilities (including contingent liabilities) and the capital (as such terms are defined in
Section 154 and Section 244 of the General Corporation Law of the State of Delaware) of Counterparty, (B) the capital of Counterparty is adequate to conduct the business of Counterparty, and Counterparty’s entry into the
Transaction will not impair its capital, (C) Counterparty has the ability to pay its debts and obligations as such debts mature and does not intend to, or does not believe that it will, incur debt beyond its ability to pay as such debts mature,
(D) Counterparty is not “insolvent” (as such term is defined under Section 101(32) of the U.S. Bankruptcy Code (Title 11 of the United States Code) (the “Bankruptcy Code”)) and (E) Counterparty would be able
to purchase the number of Shares with respect to the Transaction in compliance with the laws of the jurisdiction of Counterparty’s incorporation (including the adequate surplus and capital requirements of Sections 154 and 160 of the General
Corporation Law of the State of Delaware). 
 (xii) Counterparty acknowledges that the Transaction may constitute a purchase
of its equity securities. Counterparty further acknowledges that, pursuant to the provisions of the Coronavirus Aid, Relief and Economic Security Act (the “CARES Act”), the Counterparty would be required to agree to certain
time-bound restrictions on its ability to purchase its equity securities if it receives loans, loan guarantees or direct loans (as that term is defined in the CARES Act) under section 4003(b) of the CARES Act. Counterparty further acknowledges that
it may be required to agree to certain time-bound restrictions on its ability to purchase its equity securities if it receives loans, loan guarantees or direct loans (as that term is defined in the CARES Act) under programs or facilities established
by the Board of Governors of the Federal Reserve 

  
 12 













 
System for the purpose of providing liquidity to the financial system (together with loans, loan guarantees or direct loans under section 4003(b) of the CARES Act, “Governmental Financial
Assistance”). Accordingly, Counterparty represents and warrants that it has not applied for, and prior to the termination or settlement of the Transaction has no present intention to apply for Governmental Financial Assistance under any
governmental program or facility that (a) is established under the CARES Act or the Federal Reserve Act, as amended, and (b) requires, as a condition of such Governmental Financial Assistance, that the Counterparty agree, attest, certify
or warrant that it has not, as of the date specified in such condition, repurchased, or will not repurchase, any equity security of Counterparty. 

(b) Each of Dealer and Counterparty agrees and represents that it is an “eligible contract participant” as defined in
Section 1a(18) of the U.S. Commodity Exchange Act, as amended. 
 (c) Each of Dealer and Counterparty acknowledges that the offer and
sale of the Transaction to it is intended to be exempt from registration under the Securities Act, by virtue of Section 4(a)(2) thereof. Accordingly, Counterparty represents and warrants to Dealer that (i) it has the financial ability to
bear the economic risk of its investment in the Transaction and is able to bear a total loss of its investment and its investments in and liabilities in respect of the Transaction, which it understands are not readily marketable, are not
disproportionate to its net worth, and it is able to bear any loss in connection with the Transaction, including the loss of its entire investment in the Transaction, (ii) it is an “accredited investor” as that term is defined in
Regulation D as promulgated under the Securities Act, (iii) it is entering into the Transaction for its own account and without a view to the distribution or resale thereof, (iv) the assignment, transfer or other disposition of the
Transaction has not been and will not be registered under the Securities Act and is restricted under this Confirmation, the Securities Act and state securities laws, and (v) its financial condition is such that it has no need for liquidity with
respect to its investment in the Transaction and no need to dispose of any portion thereof to satisfy any existing or contemplated undertaking or indebtedness and is capable of assessing the merits of and understanding (on its own behalf or through
independent professional advice), and understands and accepts, the terms, conditions and risks of the Transaction.  
 (d) Each of
Dealer and Counterparty agrees and acknowledges that Dealer is a “financial institution,” “swap participant” and “financial participant” within the meaning of Sections 101(22), 101(53C) and 101(22A) of the Bankruptcy
Code. The parties hereto further agree and acknowledge (A) that this Confirmation is (i) a “securities contract,” as such term is defined in Section 741(7) of the Bankruptcy Code, with respect to which each payment and
delivery hereunder or in connection herewith is a “termination value,” “payment amount” or “other transfer obligation” within the meaning of Section 362 of the Bankruptcy Code and a “settlement payment”
within the meaning of Section 546 of the Bankruptcy Code, and (ii) a “swap agreement,” as such term is defined in Section 101(53B) of the Bankruptcy Code, with respect to which each payment and delivery hereunder or in
connection herewith is a “termination value,” “payment amount” or “other transfer obligation” within the meaning of Section 362 of the Bankruptcy Code and a “transfer” within the meaning of
Section 546 of the Bankruptcy Code, and (B) that Dealer is entitled to the protections afforded by, among other sections, Sections 362(b)(6), 362(b)(17), 362(b)(27), 362(o), 546(e), 546(g), 546(j), 548(d)(2), 555, 560 and 561 of the
Bankruptcy Code. 
 (e) (e) As a condition to the effectiveness of the Transaction, Counterparty shall deliver to Dealer an opinion of
counsel, dated as of the Effective Date and reasonably acceptable to Dealer in form and substance, with respect to certain of the matters set forth in Section 3(a)(i), (ii), (iii), (iv) and (v) of the Agreement; provided that any such
opinion of counsel may contain customary exceptions and qualifications, including, without limitation, exceptions and qualifications relating to indemnification provisions. 

(f) Counterparty understands that notwithstanding any other relationship between Counterparty and Dealer and its affiliates, in connection
with the Transaction and any other over-the-counter derivative transactions between Counterparty and Dealer or its affiliates, Dealer or its affiliates is acting as
principal and is not a fiduciary or advisor in respect of any such transaction, including any entry, exercise, amendment, unwind or termination thereof. 

(g) Each party acknowledges and agrees to be bound by the Conduct Rules of the Financial Industry Regulatory Authority, Inc. applicable to
transactions in options, and further agrees not to violate the position and exercise limits set forth therein. 
 (h) Counterparty
represents and warrants that it has received, read and understands the OTC Options Risk Disclosure Statement and a copy of the most recent disclosure pamphlet prepared by The Options Clearing Corporation entitled “Characteristics and Risks of
Standardized Options”. 

  
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 8. Other Provisions: 

(a) Right to Extend. Dealer may divide any Component into additional Components and designate the Expiration Date and the Number of
Options for each such Component if Dealer determines, in good faith and a commercially reasonable manner, that such further division is necessary or advisable to preserve Dealer’s hedging or hedge unwind activity hereunder in light of existing
liquidity conditions or to enable Dealer to effect purchases of Shares in connection with its hedging, hedge unwind or settlement activity hereunder in a manner that would, if Dealer were Counterparty or an affiliated purchaser of Counterparty, be
compliant and consistent with applicable legal, regulatory or self-regulatory requirements, or with related policies and procedures, generally applicable to transactions of the type of the Transaction; provided that in no event shall any
Expiration Date for any Component be postponed to a date later than the Final Termination Date.  
 (b) Additional Termination
Events. Promptly (but in any event within ten Scheduled Trading Days) following any repurchase, redemption or conversion of any of Counterparty’s [__]% Convertible Senior Notes due 2025 (the “Convertible Notes”) issued
pursuant to an Indenture [to be] dated June [16], 2020 between Counterparty and Wilmington Trust, National Association, as trustee, Counterparty may notify Dealer in writing of such repurchase, redemption or conversion, the number of Convertible
Notes so repurchased, redeemed or converted and the number of Shares underlying such Convertible Notes (any such notice, a “Note Repurchase Notice”). Notwithstanding anything to the contrary in this Confirmation, the receipt by
Dealer from Counterparty of (x) any Note Repurchase Notice, within the applicable time period set forth in the preceding sentence, and (y) a written representation and warranty by Counterparty that, as of the date of such Note Repurchase
Notice, Counterparty is not in possession of any material non-public information regarding Counterparty or the Shares, shall constitute an Additional Termination Event as provided in this paragraph. Upon
receipt of any such Note Repurchase Notice and the related written representation and warranty, Dealer shall promptly designate an Exchange Business Day following receipt of such Note Repurchase Notice as an Early Termination Date with respect to
the portion of the Transaction corresponding to a number of Options (the “Repurchase Options”) equal to the lesser of (A) [__]4% of the number of Shares underlying the Convertible
Notes specified in such Note Repurchase Notice, divided by the Option Entitlement [minus the “Repurchase Options” (as defined in the Base Capped Call Transaction Confirmation, dated as of June [11], 2020, between Counterparty
and Dealer relating to the Convertible Notes (the “Base Capped Call Transaction Confirmation”)), if any, that relate to such Convertible Notes (and for purposes of determining whether any Options under this Confirmation or under the
Base Capped Call Transaction Confirmation shall be among the Repurchase Options hereunder or under, and as defined in, the Base Capped Call Transaction Confirmation, such Convertible Notes shall be allocated first to the Base Capped Call Transaction
Confirmation until all Options thereunder are exercised or terminated)]5 and (B) the aggregate Number of Options as of the date Dealer designates such Early Termination Date and, as of such
date, the aggregate Number of Options shall be reduced by the number of Repurchase Options on a pro rata basis across the Components for Transaction, as determined by the Calculation Agent. Any payment hereunder with respect to such termination
shall be calculated pursuant to Section 6 of the Agreement as if (1) an Early Termination Date had been designated in respect of a Transaction having terms identical to the Transaction and an aggregate Number of Options equal to the number
of Repurchase Options, (2) Counterparty were the sole Affected Party with respect to such Additional Termination Event and (3) the terminated portion of the Transaction were the sole Affected Transaction. 

(c) Alternative Calculations and Payment on Early Termination and on Certain Extraordinary Events. If (a) an Early Termination
Date (whether as a result of an Event of Default or a Termination Event) occurs or is designated with respect to the Transaction or (b) the Transaction is cancelled or terminated upon the occurrence of an Extraordinary Event (except as a result
of (i) a Nationalization, Insolvency or Merger Event in which the consideration to be paid to all holders of Shares consists solely of cash, (ii) a Merger Event or Tender Offer that is within Counterparty’s control, or (iii) an
Event of Default in which Counterparty is the Defaulting Party or a Termination Event in which Counterparty is the Affected Party, which Event of Default or Termination Event resulted from an event or events within Counterparty’s control), and
if Dealer would owe any amount to Counterparty pursuant to Section 6(d)(ii) and 6(e) of the Agreement or any Cancellation Amount pursuant to Article 12 of the Equity Definitions (any such amount, a “Payment Obligation”),
then Dealer shall satisfy the Payment Obligation by the Share Termination Alternative (as defined below) unless (a) Counterparty gives irrevocable telephonic notice to Dealer, confirmed in writing within one Scheduled Trading Day, no later
than 12:00 
  

	4 	 Insert Dealer’s “Applicable Percentage”. 



	5 	 Include for additional capped call transaction.




  
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p.m. (New York City time) on the Merger Date, Tender Offer Date, Announcement Date (in the case of a Nationalization, Insolvency or Delisting), Early Termination Date or date of cancellation, as
applicable, of its election that the Share Termination Alternative shall not apply, (b) as of the date of such election, Counterparty represents that is not in possession of any material non-public
information regarding Counterparty or the Shares, and that such election is being made in good faith and not as part of a plan or scheme to evade compliance with the federal securities laws, and (c) Dealer agrees, in its sole discretion, to
such election, in which case the provisions of Section 12.7 or Section 12.9 of the Equity Definitions, or the provisions of Section 6(d)(ii) and 6(e) of the Agreement, as the case may be, shall apply. 

 

			
	Share Termination Alternative:	  	If applicable, Dealer shall deliver to Counterparty the Share Termination Delivery Property on, or within a commercially reasonable period of time after, the date when the relevant Payment Obligation would otherwise be due
pursuant to Section 12.7 or 12.9 of the Equity Definitions or Section 6(d)(ii) and 6(e) of the Agreement, as applicable, in satisfaction of such Payment Obligation in the manner reasonably requested by Counterparty free of
payment.
		
	Share Termination Delivery Property:	  	A number of Share Termination Delivery Units, as calculated by the Calculation Agent, equal to the Payment Obligation divided by the Share Termination Unit Price. The Calculation Agent shall adjust the Share Termination Delivery
Property by replacing any fractional portion of a security therein with an amount of cash equal to the value of such fractional security based on the values used to calculate the Share Termination Unit Price.
		
	Share Termination Unit Price:	  	The value of property contained in one Share Termination Delivery Unit, as determined by the Calculation Agent in its discretion by commercially reasonable means and notified by the Calculation Agent to Dealer at the time of
notification of the Payment Obligation. For the avoidance of doubt, the parties agree that in determining the Share Termination Delivery Unit Price the Calculation Agent may consider a variety of factors, including the market price of the Share
Termination Delivery Units and/or the purchase price paid in connection with the commercially reasonable purchase of Share Termination Delivery Property.
		
	Share Termination Delivery Unit:	  	One Share or, if the Shares have changed into cash or any other property or the right to receive cash or any other property as the result of a Nationalization, Insolvency or Merger Event (any such cash or other property, the
“Exchange Property”), a unit consisting of the type and amount of such Exchange Property received by a holder of one Share (without consideration of any requirement to pay cash or other consideration in lieu of fractional amounts of
any securities) in such Nationalization, Insolvency or Merger Event, as determined by the Calculation Agent.
		
	Failure to Deliver:	  	Applicable
		
	Other Applicable Provisions:	  	If Share Termination Alternative is applicable, the provisions of Sections 9.8, 9.9 and 9.11 (as modified above) of the Equity Definitions and the provisions set forth opposite the caption “Representation and Agreement”
in Section 2 will be applicable, except that all references in such provisions to “Physically-settled” shall be read as references to “Share Termination Settled” and all references to “Shares” shall be read as
references to “Share Termination Delivery Units”. “Share Termination Settled” in relation to the Transaction means that the Share Termination Alternative is applicable to the Transaction.


  
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 (d) Disposition of Hedge Shares. Counterparty hereby agrees that if, in the good
faith reasonable judgment of Dealer, based on the advice of legal counsel, the Shares acquired by Dealer for the purpose of hedging its obligations pursuant to the Transaction (the “Hedge Shares”) cannot be sold in the U.S.
public market by Dealer without registration under the Securities Act, Counterparty shall, at its election: (i) in order to allow Dealer to sell the Hedge Shares in a registered offering, use its commercially reasonable efforts to make
available to Dealer an effective registration statement under the Securities Act to cover the resale of such Hedge Shares and (A) enter into an agreement, in form and substance reasonably satisfactory to Dealer, substantially in the form of an
underwriting agreement for a registered offering for companies of a similar size in a similar industry, (B) provide accountant’s “comfort” letters in customary form for registered offerings of equity securities for companies of a
similar size in a similar industry, (C) provide disclosure opinions of nationally recognized outside counsel to Counterparty in customary form for registered offerings of equity securities for companies of a similar size in a similar industry,
(D) provide other customary opinions, certificates and closing documents customary in form for registered offerings of equity securities for companies of a similar size in a similar industry and (E) afford Dealer a reasonable opportunity
to conduct a “due diligence” investigation with respect to Counterparty customary in scope for underwritten offerings of equity securities for companies of a similar size in a similar industry; provided, however, that, if
Counterparty elects clause (i) above but Dealer, in its sole commercially reasonable discretion, is not satisfied with access to due diligence materials, the results of its due diligence investigation, or the procedures and documentation for
the registered offering referred to above, then clause (ii) or clause (iii) of this Section 8(d) shall apply at the election of Counterparty; (ii) in order to allow Dealer to sell the Hedge Shares in a private placement, enter
into a private placement agreement substantially similar to private placement purchase agreements customary for private placements of equity securities of companies of a similar size in a similar industry, in form and substance commercially
reasonably satisfactory to Dealer using best efforts to include customary representations, covenants, blue sky and other governmental filings and/or registrations, indemnities to Dealer, due diligence rights (for Dealer or any designated buyer of
the Hedge Shares from Dealer), opinions and certificates and such other documentation as is customary for private placements agreements of equity securities of companies of a similar size in a similar industry, as is reasonably acceptable to Dealer
(in which case, the Calculation Agent shall make any adjustments to the terms of the Transaction that are necessary, in its good faith and commercially reasonable judgment, to compensate Dealer for any customary liquidity discount from the public
market price of the Shares incurred on the sale of Hedge Shares in a private placement); or (iii) purchase the Hedge Shares from Dealer at the then-current market price on such Exchange Business Days, and in the amounts and at such time(s),
commercially reasonably requested by Dealer. This Section 8(d) shall survive the termination, expiration or early unwind of the Transaction. 

(e) Repurchase Notices. Counterparty shall, at least one Scheduled Valid Day prior to any day on which Counterparty intends to effect
any repurchase of Shares, give Dealer written notice of such repurchase (a “Repurchase Notice”) on such day if, following such repurchase, the Notice Percentage would reasonably be expected to be (i) greater than [__]6% and (ii) greater by 0.5% than the Notice Percentage included in the immediately preceding Repurchase Notice (or, in the case of the first such Repurchase Notice, greater than the Notice
Percentage as of the date hereof). The “Notice Percentage” as of any day is the fraction, expressed as a percentage, the numerator of which is the aggregate Number of Shares plus the number of Shares underlying any other
capped call transactions sold by Dealer to Counterparty and the denominator of which is the number of Shares outstanding on such day. In the event that Counterparty fails to provide Dealer with a Repurchase Notice on the day and in the manner
specified in this Section 8(e) then Counterparty agrees to indemnify and hold harmless Dealer, its affiliates and their respective directors, officers, employees, agents and controlling persons (Dealer and each such person being an
“Indemnified Party”) from and against any and all losses (including losses relating to Dealer’s hedging activities as a consequence of becoming, or of the risk of becoming, a Section 16 “insider”, including
without limitation, any forbearance from hedging activities or cessation of hedging activities and any losses in connection therewith with respect to the Transaction), claims, damages and liabilities (or actions in respect thereof), joint or
several, to which such Indemnified Party may become subject under applicable securities laws, including without limitation, Section 16 of the Exchange Act or under any U.S. state or federal law, regulation or regulatory order, in each case
relating to or arising out of such failure. If for any reason the foregoing indemnification is 
  

	6 	 To be 0.5% higher than (i) the number of Shares underlying all capped call transactions (including any
additional capped call transactions and any pre-existing call options) of the Dealer with the largest number of options, divided by (ii) total Shares outstanding.




  
 16 













 
unavailable to any Indemnified Party or insufficient to hold harmless any Indemnified Party, then Counterparty shall contribute, to the maximum extent permitted by law, to the amount paid or
payable by the Indemnified Party as a result of such loss, claim, damage or liability. In addition, Counterparty will reimburse any Indemnified Party for all reasonable expenses (including reasonable counsel fees and expenses) as they are incurred
(after notice to Counterparty) in connection with the investigation of, preparation for or defense or settlement of any pending or threatened claim or any action, suit or proceeding arising therefrom, whether or not such Indemnified Party is a party
thereto and whether or not such claim, action, suit or proceeding is initiated or brought by or on behalf of Counterparty, in each case relating to or arising out of such failure. This indemnity shall survive the completion of the Transaction
contemplated by this Confirmation and any assignment and delegation of the Transaction made pursuant to this Confirmation or the Agreement and shall inure to the benefit of any permitted assignee of Dealer. 

(f) Transfer and Assignment. Dealer may transfer or assign any of its rights or obligations under the Transaction with the prior
written consent of Counterparty, such consent not to be unreasonably withheld or delayed; provided that Dealer may transfer or assign without any consent of Counterparty its rights and obligations hereunder, in whole or in part, to
(A) any affiliate of Dealer whose obligations would be guaranteed by Dealer or Dealer’s ultimate parent or (B) any person (including any affiliate of Dealer whose obligations are not guaranteed in the manner described in clause (A))
or any person whose obligations would be guaranteed by a person (a “Designated Transferee”), in either case under this clause (B), with a rating for its long-term, unsecured and unsubordinated indebtedness at least equivalent to
Dealer’s (or its guarantor’s); provided, however, that, in the case of this clause (B), in no event shall the credit rating of the Designated Transferee or its guarantor (whichever is higher) be lower than A3 from Moody’s
Investor Service, Inc. or its successor or A- from Standard and Poor’s Rating Group, Inc. or its successor; provided further that (i) Dealer will notify Counterparty in writing promptly
following any transfer or assignment to a Designated Transferee, (ii) as a result of any such transfer or assignment, Counterparty will not be required to pay the transferee or assignee of such rights or obligations on any payment date an
amount under Section 2(d)(i)(4) of the Agreement greater than the amount, if any, that Counterparty would have been required to pay Dealer in the absence of such transfer or assignment and (iii) the transferee or assignee shall provide
Counterparty with a complete and accurate U.S. Internal Revenue Service Form W-9 or W-8 (as applicable) prior to becoming a party to the Transaction. If at any time at
which (1) the Equity Percentage exceeds 8.0% or (2) Dealer, Dealer Group (as defined below) or any person whose ownership position would be aggregated with that of Dealer or Dealer Group (Dealer, Dealer Group or any such person, a
“Dealer Person”) under Section 203 of the Delaware General Corporation Law or other federal, state or local law, rule, regulation or regulatory order or organizational documents or contracts of Counterparty applicable to
ownership of Shares (“Applicable Restrictions”), owns, beneficially owns, constructively owns, controls, holds the power to vote or otherwise meets a relevant definition of ownership in excess of a number of Shares equal to
(x) the number of Shares that would give rise to reporting, registration, filing or notification obligations or other requirements (including obtaining prior approval by a state or federal regulator) of a Dealer Person under Applicable
Restrictions and with respect to which such requirements have not been met or the relevant approval has not been received minus (y) 1% of the number of Shares outstanding on the date of determination (either such condition described in clause
(1) or (2), an “Excess Ownership Position”), if Dealer, in its reasonable discretion, is unable to effect a transfer or assignment to a third party in accordance with the requirements set forth above after its commercially
reasonable efforts on pricing and terms and within a time period reasonably acceptable to Dealer such that an Excess Ownership Position no longer exists, Dealer may designate any Scheduled Valid Day as an Early Termination Date with respect to a
portion (the “Terminated Portion”) of the Transaction, such that an Excess Ownership Position no longer exists following such partial termination. In the event that Dealer so designates an Early Termination Date with respect to a
portion of the Transaction, a payment or delivery shall be made pursuant to Section 6 of the Agreement and Section 8(c) of this Confirmation as if (i) an Early Termination Date had been designated in respect of a Transaction having
terms identical to the Terminated Portion of the Transaction, (ii) Counterparty were the sole Affected Party with respect to such partial termination, (iii) such portion of the Transaction were the only Terminated Transaction and
(iv) Dealer were the party entitled to designate an Early Termination Date pursuant to Section 6(b) of the Agreement and to determine the amount payable pursuant to Section 6(e) of the Agreement. The “Equity
Percentage” as of any day is the fraction, expressed as a percentage, (A) the numerator of which is the number of Shares that Dealer and any of its affiliates subject to aggregation with Dealer for purposes of the “beneficial
ownership” test under Section 13 of the Exchange Act and all persons who may form a “group” (within the meaning of Rule 13d-5(b)(1) under the Exchange Act) with Dealer (collectively,
“Dealer Group”) “beneficially own” (within the meaning of Section 13 of the Exchange Act) without duplication on such day and (B) the denominator of which is the number of Shares outstanding on such day. 

  
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 Counterparty may transfer or assign any of its rights or obligations under the Transaction
with the prior written consent of Dealer, such consent not to be unreasonably withheld or delayed. In the case of a transfer or assignment by Counterparty of its rights and obligations hereunder and under the Agreement, in whole or in part (any such
Options so transferred or assigned, the “Transfer Options”), to any party, withholding of such consent by Dealer shall not be considered unreasonable if such transfer or assignment does not meet the reasonable conditions that Dealer
may impose including, but not limited to, the following conditions: 
 (A) With respect to any Transfer Options, Counterparty
shall not be released from its notice and indemnification obligations pursuant to Section 8(e) or any obligations under Section 2 (regarding Extraordinary Events) or 8(d) of this Confirmation; 

(B) Any Transfer Options shall only be transferred or assigned to a third party that is a U.S. person (as defined in the
Internal Revenue Code of 1986, as amended (the “Code”)); 
 (C) Such transfer or assignment shall be
effected on terms, including any reasonable undertakings by such third party (including, but not limited to, undertakings with respect to compliance with applicable securities laws in a manner that, in the reasonable judgment of Dealer, will not
expose Dealer to material risks under applicable securities laws) and execution of any documentation and delivery of customary legal opinions with respect to securities laws and other matters by such third party and Counterparty as are reasonably
requested and reasonably satisfactory to Dealer; 
 (D) Dealer will not, as a result of such transfer and assignment, be
required to pay the transferee on any payment date an amount under Section 2(d)(i)(4) of the Agreement greater than an amount that Dealer would have been required to pay to Counterparty in the absence of such transfer and assignment; 

(E) An Event of Default, Potential Event of Default or Termination Event will not occur as a result of such transfer and
assignment; 
 (F) Without limiting the generality of clause (B), Counterparty shall have caused the transferee to make such
Payee Tax Representations and to provide such tax documentation as may be reasonably requested by Dealer to permit Dealer to determine that results described in clauses (B) and (D) will not occur upon or after such transfer and assignment; and

 (G) Counterparty shall be responsible for all reasonable costs and expenses, including reasonable counsel fees, incurred
by Dealer in connection with such transfer or assignment. 
 (g) Staggered Settlement. If Dealer determines reasonably and in good
faith that the number of Shares required to be delivered to Counterparty hereunder on any Settlement Date would result in an Excess Ownership Position, then Dealer may, by notice to Counterparty prior to such Settlement Date (a “Nominal
Settlement Date”), elect to deliver any Shares due to be delivered on two or more dates (each, a “Staggered Settlement Date”) or at two or more times on the Nominal Settlement Date as follows: 

(i) in such notice, Dealer will specify to Counterparty the related Staggered Settlement Dates (each of which will be on or
prior to the 20th Exchange Business Day after such Nominal Settlement Date) or delivery times and how it will allocate the Shares it is required to deliver under “Delivery Obligation”
(above) among the Staggered Settlement Dates or delivery times; and 
 (ii) the aggregate number of Shares that Dealer will
deliver to Counterparty hereunder on all such Staggered Settlement Dates and delivery times will equal the number of Shares that Dealer would otherwise be required to deliver on such Nominal Settlement Date; provided that in no event shall
any Staggered Settlement Date be a date later than the Final Termination Date. 
 (h) Disclosure. Effective from the date of
commencement of discussions concerning the Transaction, Counterparty and each of its employees, representatives, or other agents may disclose to any and all persons, without limitation of any kind, the tax treatment and tax structure of the
Transaction and all materials of any kind (including opinions or other tax analyses) that are provided to Counterparty relating to such tax treatment and tax structure.  

(i) No Netting and Set-off. The provisions of Section 2(c) of the Agreement shall not
apply to the Transaction. Each party waives any and all rights it may have to set-off delivery or payment obligations it owes to 

  
 18 













 
the other party under the Transaction against any delivery or payment obligations owed to it by the other party, whether arising under the Agreement, under any other agreement between parties
hereto, by operation of law or otherwise. 
 (j) Equity Rights. Dealer acknowledges and agrees that this Confirmation is not intended
to convey to it rights with respect to the Transaction that are senior to the claims of common stockholders in the event of Counterparty’s bankruptcy. For the avoidance of doubt, the parties agree that the preceding sentence shall not apply at
any time other than during Counterparty’s bankruptcy to any claim arising as a result of a breach by Counterparty of any of its obligations under this Confirmation or the Agreement. For the avoidance of doubt, the parties acknowledge that the
obligations of Counterparty under this Confirmation are not secured by any collateral that would otherwise secure the obligations of Counterparty herein under or pursuant to any other agreement. 

(k) Early Unwind. In the event the sale of the [Firm Securities]7 [Additional
Securities]8 (as defined in the Purchase Agreement, dated as of June [12], 2020, among Goldman Sachs & Co. LLC and Morgan Stanley & Co. LLC, as representatives of the several
initial purchasers thereto, and Counterparty (the “Purchase Agreement”)) is not consummated pursuant to the Purchase Agreement for any reason by the close of business in New York on June [16], 20209 (or such later date as agreed upon by the parties which in no event shall be later than the second Scheduled Valid Day following June [16], 2020) (such date or such later date as agreed upon being
the “Accelerated Unwind Date”), the Transaction shall automatically terminate on the Accelerated Unwind Date and (i) the Transaction and all of the respective rights and obligations of Dealer and Counterparty under the
Transaction shall be cancelled and terminated and (ii) each party shall be released and discharged by the other party from and agrees not to make any claim against the other party with respect to any obligations or liabilities of the other
party arising out of and to be performed in connection with the Transaction either prior to or after the Accelerated Unwind Date. 
 (l)
Illegality. The parties agree that, for the avoidance of doubt, for purposes of Section 5(b)(i) of the Agreement, “any applicable law” shall include the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, any
rules and regulations promulgated thereunder and any similar law or regulation, without regard to Section 739 of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 or any similar legal certainty provision in any legislation
enacted, or rule or regulation promulgated, on or after the Trade Date, and the consequences specified in the Agreement, including without limitation, the consequences specified in Section 6 of the Agreement, shall apply to any Illegality
arising from any such act, rule or regulation.  
 (m) Amendments to Equity Definitions and the Agreement. The following
amendments shall be made to the Equity Definitions and the Agreement: 
 (i) solely for purposes of applying the Equity
Definitions and for purposes of this Confirmation, any reference in the Equity Definitions to a Strike Price shall be deemed to be a reference to either of the Strike Price or the Cap Price, or both, as appropriate; 

(ii) for the purpose of any adjustment under Section 11.2(c) of the Equity Definitions, the first sentence of
Section 11.2(c) of the Equity Definitions, prior to clause (A) thereof, is hereby amended to read as follows: “If “Calculation Agent Adjustment” is specified as the Method of Adjustment in the related Confirmation of a Share
Option Transaction, then following the announcement or occurrence of any Potential Adjustment Event, the Calculation Agent will determine whether such Potential Adjustment Event has, in the commercially reasonable judgment of the Calculation Agent,
a material economic effect on the theoretical value of the relevant Shares or options on the Shares (provided that such event is not based on (x) an observable market, other than the market for Counterparty’s own stock or
(y) an observable index, other than an index calculated and measured solely by reference to Counterparty’s own operations) and, if so, will (i) make appropriate adjustment(s), if any, determined in a commercially reasonable manner, to
any one or more of:”, and the portion of such sentence immediately preceding clause (ii) thereof is hereby amended by deleting the words “diluting or concentrative” and the words “(provided that no adjustments will be
made to account solely for changes in volatility, expected dividends, stock loan rate or 
  

 

	7 	 Include for base capped call transaction 



	8 	 Include for additional capped call transaction 



	9 	 For the base capped call, to be the scheduled closing date for the Firm Securities. For the additional capped
call, to be the scheduled closing date for the Additional Securities. 



  
 19 













 
liquidity relative to the relevant Shares)” and replacing such latter phrase with the words “(provided that, solely in the case of Sections 11.2(e)(i), (ii)(A), (iv) and (v), no
adjustments will be made to account solely for changes in volatility, expected dividends, stock loan rate or liquidity relative to the relevant Shares but, for the avoidance of doubt, solely in the case of Sections 11.2(e)(ii)(B) through (D), (iii),
(vi) and (vii), adjustments may be made to account solely for changes in volatility, expected dividends, stock loan rate or liquidity relative to the relevant Shares)”; 

(iii) Section 11.2(a) of the Equity Definitions is hereby amended by (1) deleting the words “in the
determination of the Calculation Agent, a diluting or concentrative effect” and replacing these words with “in the commercially reasonable judgment of the Calculation Agent, a material economic effect”; and (2) adding at the end
thereof “; provided that such event is not based on (i) an observable market, other than the market for Counterparty’s own stock or (ii) an observable index, other than an index calculated and measured solely by reference
to Counterparty’s own operations”; 
 (iv) Section 11.2(e)(vii) of the Equity Definitions is hereby amended
and restated as follows: “any other corporate event involving the Issuer that in the commercially reasonable judgment of the Calculation Agent has a material economic effect on the theoretical value of the Shares or options on the Shares;
provided that such corporate event involving the Issuer is not based on (a) an observable market, other than the market for Counterparty’s own stock or (b) an observable index, other than an index calculated and measured solely
by reference to Counterparty’s own operations.”; and 
 (v) Section 12.7(b) of the Equity Definitions is
hereby amended by deleting the words “(and in any event within five Exchange Business Days) by the parties after” appearing after the words “agreed promptly” and replacing with the words “by the parties on or prior to”;
and 
 (vi) Section 2(a)(iii) of the Agreement is hereby amended by (A) replacing the comma at the end of the
second line of such Section with the word “and”, (B) deleting the word “and” immediately before subsection (3) and (C) deleting clause “(3)” in its entirety. 

(n) Governing Law; Exclusive Jurisdiction. 

(i) THE AGREEMENT, THIS CONFIRMATION AND ALL MATTERS ARISING IN CONNECTION WITH THE AGREEMENT AND THIS CONFIRMATION SHALL BE
GOVERNED BY, AND CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK (WITHOUT REFERENCE TO ITS CHOICE OF LAW DOCTRINE, OTHER THAN TITLE 14 OF ARTICLE 5 OF THE NEW YORK GENERAL OBLIGATIONS LAW). 

(ii) Section 13(b) of the Agreement is deleted in its entirety and replaced by the following: 

“Each party hereby irrevocably and unconditionally submits for itself and its property in any suit, legal action or
proceeding relating to this Confirmation or the Agreement, or for recognition and enforcement of any judgment in respect thereof, (each, “Proceedings”) to the exclusive jurisdiction of the Supreme Court of the State of New York, sitting in
New York County, the courts of the United States of America for the Southern District of New York and appellate courts from any thereof. Nothing in this Confirmation or the Agreement precludes either party from bringing Proceedings in any other
jurisdiction if (A) the courts of the State of New York or the United States of America for the Southern District of New York lack jurisdiction over the parties or the subject matter of the Proceedings or decline to accept the Proceedings on
the grounds of lacking such jurisdiction; (B) the Proceedings are commenced by a party for the purpose of enforcing against the other party’s property, assets or estate any decision or judgment rendered by any court in which Proceedings
may be brought as provided hereunder; (C) the Proceedings are commenced to appeal any such court’s decision or judgment to any higher court with competent appellate jurisdiction over that court’s decisions or judgments if that higher
court is located outside the State of New York or Borough of Manhattan, such as a federal court of appeals or the U.S. Supreme Court; or (D) any suit, action or proceeding has been commenced in another jurisdiction by or against the other party
or against its property, assets or estate and, in order to exercise or protect its rights, interests or remedies under this Confirmation or the Agreement, the party (1) joins, files a claim, or takes any


  
 20 













 
other action, in any such suit, action or proceeding, or (2) otherwise commences any Proceeding in that other jurisdiction as the result of that other suit, action or proceeding having
commenced in that other jurisdiction.” 
 (o) Adjustments. For the avoidance of doubt, whenever the Calculation Agent or
Determining Party is called upon to make an adjustment pursuant to the terms of this Confirmation or the Equity Definitions to take into account the effect of an event, the Calculation Agent or Determining Party shall make such adjustment by
reference to the effect of such event on the Hedging Party, assuming that the Hedging Party maintains a commercially reasonable hedge position. 

(p) Delivery or Receipt of Cash. For the avoidance of doubt, other than payment of the Premium by Counterparty, nothing in this
Confirmation shall be interpreted as requiring Counterparty to cash settle the Transaction, except in circumstances where cash settlement is within Counterparty’s control (including, without limitation, where Counterparty elects to deliver or
receive cash) or in those circumstances in which holders of Shares would also receive cash. 
 (q) Waiver of Jury Trial. EACH
PARTY HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHTS TO TRIAL BY JURY WITH RESPECT TO ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THE AGREEMENT, THIS CONFIRMATION OR ANY TRANSACTIONS CONTEMPLATED HEREBY.  

(r) Amendment. This Confirmation and the Agreement may not be modified, amended or supplemented, except in a written instrument signed
by Counterparty and Dealer.  
 (s) Counterparts. This Confirmation may be executed in several counterparts, each of which
shall be deemed an original but all of which together shall constitute one and the same instrument.  
 (t) Tax Matters.  

(i) Payee Representations. 

For the purpose of Section 3(f) of the Agreement, Counterparty makes the following representation to Dealer: 

Counterparty is a corporation and a U.S. person (as that term is defined in Section 7701(a)(30) of the Code and used in Section 1.1441-4(a)(3)(ii) of the Treasury Regulations) for U.S. federal income tax purposes. 

For the purpose of Section 3(f) of the Agreement, Dealer makes the following representation to Counterparty: 

[Dealer is a U.S. person (as that term is defined in Section 7701(a)(30) and used in
Section 1.1441-4(a)(3)(ii) of the Treasury Regulations) for U.S. federal income tax purposes.]10 

(ii) Tax Documentation. For the purpose of Sections 4(a)(i) and (ii) of the Agreement, Counterparty agrees to
deliver to Dealer one duly executed and completed United States Internal Revenue Service Form W-9 (or successor thereto) and Dealer agrees to deliver to Counterparty, as applicable, a U.S. Internal Revenue
Service Form W-8 or Form W-9 (or successor thereto). Such forms or documents shall be delivered upon (i) execution of this Confirmation, and (ii) reasonable
request of the other party. 
 (u) Withholding Tax imposed on payments to non-US counterparties
under the United States Foreign Account Tax Compliance Act. “Indemnifiable Tax”, as defined in Section 14 of the Agreement, shall not include any U.S. federal withholding tax imposed or collected pursuant to Sections 1471 through
1474 of the Code, any current or future regulations or official interpretations thereof, any agreement entered into pursuant to Section 1471(b) of the Code, or any fiscal or regulatory legislation, rules or practices adopted pursuant to any
intergovernmental agreement entered into in connection with the implementation of such Sections of the Code (a “FATCA Withholding Tax”). For the avoidance of doubt, a FATCA Withholding Tax is a Tax the deduction or withholding of
which is required by applicable law for the purposes of Section 2(d) of the Agreement. 
  

 

	10 	 Include appropriate Payee Representation for Dealer 



  
 21 













 (v) HIRE Act. “Indemnifiable Tax”, as defined in Section 14 of the
Agreement, shall not include any tax imposed on payments treated as dividends from sources within the United States under Section 871(m) of the Code or any regulations issued thereunder. For the avoidance of doubt, any such tax imposed under
Section 871(m) of the Code is a Tax the deduction or withholding of which is required by applicable law for the purposes of Section 2(d) of the Agreement. 

(w) [Insert Agency Boilerplate, and QFC Language, If Applicable] 

  
 22 













 Please confirm that the foregoing correctly sets forth the terms of our agreement by sending
to us a letter or telex substantially similar to this facsimile, which letter or telex sets forth the material terms of the Transaction to which this Confirmation relates and indicates your agreement to those terms. 

 

			
	Yours faithfully,
	
	[DEALER]
		
	By:	 	  

		 	Name:
		 	Title:


  

			
		 	Agreed and Accepted By:
		
		 	ZENDESK, INC.
		
	By	 	  

		 	Name:
		 	Title:


  
 23 













 Schedule 1 

[Form of Guarantee] 

  
 24 













 Annex A 

For each Component of the Transaction, the Number of Options and Expiration Date is set forth below. 

 

					
	 Component Number
	  	 Number of Options
	  	 Expiration Date

	 1
	  		  	
	 2
	  		  	
	 3
	  		  	
	 4
	  		  	
	 5
	  		  	
	 6
	  		  	
	 7
	  		  	
	 8
	  		  	
	 9
	  		  	
	 10
	  		  	
	 11
	  		  	
	 12
	  		  	
	 13
	  		  	
	 14
	  		  	
	 15
	  		  	
	 16
	  		  	
	 17
	  		  	
	 18
	  		  	
	 19
	  		  	
	 20
	  		  	
	 21
	  		  	
	 22
	  		  	
	 23
	  		  	
	 24
	  		  	
	 25
	  		  	
	 26
	  		  	
	 27
	  		  	
	 28
	  		  	
	 29
	  		  	
	 30
	  		  	
	 31
	  		  	
	 32
	  		  	
	 33
	  		  	
	 34
	  		  	
	 35
	  		  	
	 36
	  		  	
	 37
	  		  	
	 38
	  		  	
	 39
	  		  	
	 40
	  		  	


  
 25