Soren Abildgaard - 15 May 2021 Form 4 Insider Report for Zendesk, Inc.

Role: EVP of Engineering
Signature: /s/ Steven Chen via Power-of-Attorney for Soren Abildgaard
Issuer symbol: N/A
Transactions as of: 15 May 2021
Net transactions value: -$149,084
Form type: 4
Filing time: 18 May 2021, 21:14:39 UTC
Previous filing: 12 May 2021
Next filing: 21 May 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ZEN	Common Stock	Options Exercise		+1,614	+734%		1,834	15 May 2021	Direct	F1
transaction	ZEN	Common Stock	Tax liability	$108,167	-801	-44%	$135.04	1,033	15 May 2021	Direct	F2
transaction	ZEN	Common Stock	Options Exercise		+181	+18%		1,214	15 May 2021	Direct	F1
transaction	ZEN	Common Stock	Tax liability	$12,154	-90	-7.4%	$135.04	1,124	15 May 2021	Direct	F2
transaction	ZEN	Common Stock	Options Exercise		+204	+18%		1,328	15 May 2021	Direct	F1
transaction	ZEN	Common Stock	Tax liability	$13,774	-102	-7.7%	$135.04	1,226	15 May 2021	Direct	F2
transaction	ZEN	Common Stock	Options Exercise		+222	+18%		1,448	15 May 2021	Direct	F1
transaction	ZEN	Common Stock	Tax liability	$14,989	-111	-7.7%	$135.04	1,337	15 May 2021	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ZEN	Restricted Stock Unit	Options Exercise	$0	-1,614	-14%	$0.000000	9,689	15 May 2021	Common Stock	1,614		Direct	F1, F3
transaction	ZEN	Restricted Stock Unit	Options Exercise	$0	-181	-4.8%	$0.000000	3,626	15 May 2021	Common Stock	181		Direct	F1, F4
transaction	ZEN	Restricted Stock Unit	Options Exercise	$0	-204	-2.9%	$0.000000	6,729	15 May 2021	Common Stock	204		Direct	F1, F5
transaction	ZEN	Restricted Stock Unit	Options Exercise	$0	-222	-2.2%	$0.000000	9,961	15 May 2021	Common Stock	222		Direct	F1, F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Restricted stock units convert into common stock on a one-for-one basis.
F2	Represents the number of shares withheld by the Issuer in satisfaction of tax withholding obligations in connection with the vesting of the restricted stock units listed in Table II. Such withholding is mandated by an election of the Issuer made in advance and does not represent a discretionary trade by the Reporting Person.
F3	1/4th of the shares issuable pursuant to the restricted stock units shall vest one year after the vesting commencement date of November 15, 2017 and an additional 1/48th of the shares issuable pursuant to the restricted stock units shall vest each month thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date. Unvested shares are subject to acceleration upon the occurrence of certain events.
F4	1/48th of the shares issuable pursuant to the restricted stock units shall vest each month after the vesting commencement date of January 15, 2019, subject to the Reporting Person's continuous service to the Issuer on each such date. Unvested shares are subject to acceleration upon the occurrence of certain events.
F5	1/48th of the shares issuable pursuant to the restricted stock units shall vest each month after the vesting commencement date of February 15, 2020, subject to the Reporting Person's continuous service to the Issuer on each such date. Unvested shares are subject to acceleration upon the occurrence of certain events.
F6	1/48th of the shares issuable pursuant to the restricted stock units shall vest each month after the vesting commencement date of February 15, 2021, subject to the Reporting Person's continuous service to the Issuer on each such date. Unvested shares are subject to acceleration upon the occurrence of certain events.