Mark S. Zagorski - 12 Mar 2026 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
12 Mar 2026
Net transactions value
$0
Form type
4
Filing time
16 Mar 2026, 16:10:56 UTC
Previous filing
12 Mar 2026
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 16 Mar 2026 0001709574

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DV Common Stock Options Exercise +22,919 +4.7% $0.000000* 511,505 15 Mar 2026 Direct F1
transaction DV Common Stock Tax liability -12,675 -2.5% $10.21* 498,830 15 Mar 2026 Direct F2
transaction DV Common Stock Options Exercise +60,609 +12% $0.000000* 559,439 15 Mar 2026 Direct F3
transaction DV Common Stock Tax liability -33,517 -6% $10.21* 525,922 15 Mar 2026 Direct F4
transaction DV Common Stock Options Exercise +15,219 +2.9% $0.000000* 541,141 15 Mar 2026 Direct F5
transaction DV Common Stock Tax liability -6,724 -1.2% $10.21* 534,417 15 Mar 2026 Direct F2
transaction DV Common Stock Options Exercise +2,757 +0.52% $0.000000* 537,174 15 Mar 2026 Direct F6
transaction DV Common Stock Tax liability -1,112 -0.21% $10.21* 536,062 15 Mar 2026 Direct F4
transaction DV Common Stock Options Exercise +7,802 +1.5% $0.000000* 543,864 15 Mar 2026 Direct F7
transaction DV Common Stock Tax liability -3,145 -0.58% $10.21* 540,719 15 Mar 2026 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 Award +275,000 $0.000000* 275,000 12 Mar 2026 Common Stock 275,000 Direct F8, F9
transaction DV Restricted Stock Units Options Exercise -22,919 -8.3% $0.000000* 252,081 15 Mar 2026 Common Stock 22,919 Direct F1, F8
transaction DV Performance Stock Units Options Exercise -60,609 -42% $0.000000* 84,849 15 Mar 2026 Common Stock 60,609 Direct F3, F10
transaction DV Restricted Stock Units Options Exercise -15,219 -8.3% $0.000000* 167,409 15 Mar 2026 Common Stock 15,219 Direct F5, F8
transaction DV Performance Stock Units Options Exercise -2,757 -25% $0.000000* 8,271 15 Mar 2026 Common Stock 2,757 Direct F10, F11
transaction DV Restricted Stock Units Options Exercise -7,802 -13% $0.000000* 54,609 15 Mar 2026 Common Stock 7,802 Direct F7, F8
transaction DV Restricted Stock Units Options Exercise -9,375 -25% $0.000000* 28,125 15 Mar 2026 Common Stock 9,375 Direct F8, F12, F13
* 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 12, 2026. 8.33% of the restricted stock units vested and were settled on March 15, 2026 (the "2026 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 8.33% on each quarterly anniversary of the 2026 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 March 13, 2025. 41.67% of the earned shares vested and were settled on the 2026 Vesting Date, and the remainder of the earned shares vest and settle at a rate of 8.33% on each quarterly anniversary of the 2026 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 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.
F6 Each performance stock unit "PSU" 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.
F7 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.
F8 Restricted stock units convert into common stock on a one-for-one basis.
F9 The restricted stock units were granted on March 12, 2026. 8.33% of the restricted stock units vest and settle on March 15, 2026, and the remainder of the restricted stock units vest and settle at a rate of 8.33% on each quarterly anniversary of the 2026 Vesting Date.
F10 Performance stock units convert into common stock on a one-for-one basis.
F11 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 and settle at a rate of 8.33% on each quarterly anniversary of the 2025 Vesting Date.
F12 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.
F13 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.