Mark Zagorski - 15 Sep 2025 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
Issuer symbol
DV
Transactions as of
15 Sep 2025
Net transactions value
-$232,046
Form type
4
Filing time
17 Sep 2025, 16:34:33 UTC
Previous filing
21 Aug 2025
Next filing
17 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Zagorski Mark Chief Executive Officer, Director C/O DOUBLEVERIFY HOLDINGS, INC., 462 BROADWAY, NEW YORK /s/ Andrew E. Grimmig, as Attorney-in-Fact for Mark S. Zagorski 17 Sep 2025 0001709574

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DV Common Stock Options Exercise $0 +15,219 +3.4% $0.000000 468,858 15 Sep 2025 Direct F1
transaction DV Common Stock Tax liability $109,505 -8,417 -1.8% $13.01 460,441 15 Sep 2025 Direct F2
transaction DV Common Stock Options Exercise $0 +2,756 +0.6% $0.000000 463,197 15 Sep 2025 Direct F3
transaction DV Common Stock Tax liability $19,840 -1,525 -0.33% $13.01 461,672 15 Sep 2025 Direct F4
transaction DV Common Stock Options Exercise $0 +7,802 +1.7% $0.000000 469,474 15 Sep 2025 Direct F5
transaction DV Common Stock Tax liability $56,138 -4,315 -0.92% $13.01 465,159 15 Sep 2025 Direct F2
transaction DV Common Stock Options Exercise $0 +6,471 +1.4% $0.000000 471,630 15 Sep 2025 Direct F6
transaction DV Common Stock Tax liability $46,563 -3,579 -0.76% $13.01 468,051 15 Sep 2025 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 -15,219 -7.1% $0.000000 197,847 15 Sep 2025 Common Stock 15,219 Direct F1, F7
transaction DV Performance Stock Units Options Exercise $0 -2,756 -17% $0.000000 13,784 15 Sep 2025 Common Stock 2,756 Direct F3, F8
transaction DV Restricted Stock Units Options Exercise $0 -7,802 -10% $0.000000 70,213 15 Sep 2025 Common Stock 7,802 Direct F5, F7
transaction DV Restricted Stock Units Options Exercise $0 -6,471 -50% $0.000000 6,471 15 Sep 2025 Common Stock 6,471 Direct F6, F7
transaction DV Restricted Stock Units Options Exercise $0 -9,375 -17% $0.000000 46,875 15 Sep 2025 Common Stock 9,375 Direct F7, F9, F10
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit was granted on March 13, 2025. 6.25% of the restricted stock units vested and were settled on March 15, 2025 (the "2025 Vesting Date"), and the remainder of the restricted stock units vest at a rate of 6.25% on each quarterly anniversary of the 2025 Vesting Date.
F2 Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.
F3 Each performance stock unit was granted on December 19, 2023. 41.67% of the earned shares vested and were settled on the 2025 Vesting Date, and the remainder of the earned shares vest at a rate of 8.33% on each quarterly anniversary of the 2025 Vesting Date.
F4 Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of performance stock units.
F5 Each restricted stock unit was granted on December 19, 2023. 6.25% of the restricted stock units vested and were settled on March 15, 2024 (the "2024 Vesting Date"), and the remainder of the restricted stock units vest at a rate of 6.25% on each quarterly anniversary of the 2024 Vesting Date.
F6 Each restricted stock unit was 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.
F7 Restricted stock units convert into common stock on a one-for-one basis.
F8 Performance stock units convert into common stock on a one-for-one basis.
F9 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.
F10 Each restricted stock unit was 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.