Mark Zagorski - Mar 15, 2023 Form 4 Insider Report for DoubleVerify Holdings, Inc. (DV)

Role: Chief Executive Officer, Director
Signature: /s/ Andrew E. Grimmig, as Attorney-in-Fact for Mark S. Zagorski
Stock symbol: DV
Transactions as of: Mar 15, 2023
Transactions value $: -$69,495
Form type: 4
Date filed: 3/17/2023, 04:14 PM
Previous filing: Jan 4, 2023
Next filing: Apr 4, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	DV	Common Stock	Options Exercise	$0	+6.47K	+1.93%	$0.00	341K	Mar 15, 2023	Direct	F1
transaction	DV	Common Stock	Tax liability	-$69.5K	-2.83K	-0.83%	$24.60	339K	Mar 15, 2023	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	DV	Restricted Stock Units	Options Exercise	$0	-6.47K	-8.33%	$0.00	71.2K	Mar 15, 2023	Common Stock	6.47K		Direct	F1, F3
transaction	DV	Restricted Stock Units	Options Exercise	$0	-9.38K	-6.25%	$0.00	141K	Mar 15, 2023	Common Stock	9.38K		Direct	F3, F4, F5

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

Explanation of Responses:

Id	Content
F1	The restricted stock units were granted on December 10, 2021. 6.25% of the restricted stock units vested and were settled on March 15, 2022 (the "2022 Vesting Date"), and the remainder of the restricted stock units vest at a rate of 6.25% on each quarterly anniversary of the 2022 Vesting Date.
F2	Represents shares withheld to satisfy tax obligations in connection with the vesting of 6,471 RSUs on March 15, 2023.
F3	Restricted stock units convert into common stock on a one-for-one basis.
F4	As reported previously, vested shares will be delivered to the reporting person as soon as administratively feasible following his separation from service with the Issuer.
F5	The restricted stock units were granted on December 12, 2022. 6.25% of the restricted stock units vested on March 15, 2023 (the "2023 Vesting Date"), and the remainder of the restricted stock units vest at a rate of 6.25% on each quarterly anniversary of the 2023 Vesting Date.