John Geschke - 15 Jul 2021 Form 4 Insider Report for Zendesk, Inc.

Role: Chief of Staff
Signature: /s/ Steven Chen via Power-of-Attorney for John Geschke
Issuer symbol: N/A
Transactions as of: 15 Jul 2021
Net transactions value: -$85,737
Form type: 4
Filing time: 19 Jul 2021, 20:07:45 UTC
Previous filing: 08 Jul 2021
Next filing: 12 Aug 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		+386	+1.1%		36,264	15 Jul 2021	Direct	F1
transaction	ZEN	Common Stock	Tax liability	$26,423	-192	-0.53%	$137.62	36,072	15 Jul 2021	Direct	F2
transaction	ZEN	Common Stock	Options Exercise		+306	+0.85%		36,378	15 Jul 2021	Direct	F1
transaction	ZEN	Common Stock	Tax liability	$20,918	-152	-0.42%	$137.62	36,226	15 Jul 2021	Direct	F2
transaction	ZEN	Common Stock	Options Exercise		+340	+0.94%		36,566	15 Jul 2021	Direct	F1
transaction	ZEN	Common Stock	Tax liability	$23,258	-169	-0.46%	$137.62	36,397	15 Jul 2021	Direct	F2
transaction	ZEN	Common Stock	Options Exercise		+221	+0.61%		36,618	15 Jul 2021	Direct	F1
transaction	ZEN	Common Stock	Tax liability	$15,138	-110	-0.3%	$137.62	36,508	15 Jul 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	-386	-14%	$0.000000	2,313	15 Jul 2021	Common Stock	386		Direct	F1, F3
transaction	ZEN	Restricted Stock Unit	Options Exercise	$0	-306	-5.3%	$0.000000	5,513	15 Jul 2021	Common Stock	306		Direct	F1, F4
transaction	ZEN	Restricted Stock Unit	Options Exercise	$0	-340	-3.1%	$0.000000	10,535	15 Jul 2021	Common Stock	340		Direct	F1, F5
transaction	ZEN	Restricted Stock Unit	Options Exercise	$0	-221	-2.3%	$0.000000	9,519	15 Jul 2021	Common Stock	221		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	1/48th of the shares issuable pursuant to the restricted stock units shall vest each month after the vesting commencement date of January 15, 2018, 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.