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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1463172	Zendesk Inc.	ZEN	Services-Computer Processing & Data Preparation (7374)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1615739	Adrian Matthew Price	1019 Market Street San Francisco CA 94103	Svp Of Global Marketing	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2015-02-05	4,896	$0.61	4,896	No	4	M	Direct
Common Stock	Disposition	2015-02-05	4,896	$23.72	0	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (Right to Buy)	Disposition	2015-02-05	4,896	$0.00	4,896	$0.61
Common Stock	Stock Option (Right to Buy)	Acquisiton	2015-02-05	39,100	$24.77	39,100	$24.77
Common Stock	Restricted Stock Unit	Acquisiton	2015-02-05	6,900	$0.00	6,900	$0.00

Remaning Holdings	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
14,688	2021-05-19	No	4	M	Direct
39,100	2025-02-04	No	4	A	Direct
6,900	2022-02-04	No	4	A	Direct

Footnotes

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
1/4th of the shares subject to the option vested on May 5, 2012 and 1/48th of the shares subject to the option shall vest monthly thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date. 50% of the then unvested shares are subject to acceleration upon the occurrence of certain events.
1/48th of the shares subject to the option shall vest and become exercisable monthly after the vesting commencement date of February 5, 2015, subject to the Reporting Person's continuous service to the Issuer on each such date. 50% of the then unvested shares are subject to acceleration upon the occurrence of certain events.
1/48th of the shares issuable pursuant to the restricted stock unit shall vest monthly after the vesting commencement date of February 15, 2015, subject to the Reporting Person's continuous service to the Issuer on each such date. 50% of the then unvested shares are subject to acceleration upon the occurrence of certain events.