DV

SEC source: 0001209191-23-041909 · doc4.xml · nonDerivative · entry 1

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 68,905

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-040951 · doc4.xml · derivative · entry 2

Jain Sundeep · CIK 0001936390 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,467 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on July 1, 2022 and represents a right to receive one share of common stock on a one-to-one basis. The RSUs fully vested on July 1, 2023.

F1 · derivative.expiration_date: Each restricted stock unit ("RSU") was granted on July 1, 2022 and represents a right to receive one share of common stock on a one-to-one basis. The RSUs fully vested on July 1, 2023.

SEC source: 0001209191-23-040951 · doc4.xml · nonDerivative · entry 1

Jain Sundeep · CIK 0001936390 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,467

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") was granted on July 1, 2022 and represents a right to receive one share of common stock on a one-to-one basis. The RSUs fully vested on July 1, 2023.

SEC source: 0001209191-23-040953 · doc4.xml · derivative · entry 3

Zagorski Mark · CIK 0001709574 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,082

Underlying: Common Stock · 10,417 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on July 28, 2020 and represents a right to receive one share of common stock on a one-to-one basis. 37.5% of the RSUs vested and were settled on April 20, 2021, upon the initial public offering (the "IPO") of common stock of DoubleVerify Holdings, Inc. The remaining RSUs vest on the original vesting schedule as though the IPO had not occurred, subject to Mr. Zagorksi's continued employment through the applicable vesting date.

F1 · derivative.expiration_date: Each restricted stock unit ("RSU") was granted on July 28, 2020 and represents a right to receive one share of common stock on a one-to-one basis. 37.5% of the RSUs vested and were settled on April 20, 2021, upon the initial public offering (the "IPO") of common stock of DoubleVerify Holdings, Inc. The remaining RSUs vest on the original vesting schedule as though the IPO had not occurred, subject to Mr. Zagorksi's continued employment through the applicable vesting date.

SEC source: 0001209191-23-040953 · doc4.xml · nonDerivative · entry 2

Zagorski Mark · CIK 0001709574 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 352,455

F2 · kind: Represents shares withheld to satisfy tax obligations in connection with the vesting of 10,417 RSUs on June 30, 2023.

SEC source: 0001209191-23-040953 · doc4.xml · nonDerivative · entry 1

Zagorski Mark · CIK 0001709574 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 358,433

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") was granted on July 28, 2020 and represents a right to receive one share of common stock on a one-to-one basis. 37.5% of the RSUs vested and were settled on April 20, 2021, upon the initial public offering (the "IPO") of common stock of DoubleVerify Holdings, Inc. The remaining RSUs vest on the original vesting schedule as though the IPO had not occurred, subject to Mr. Zagorksi's continued employment through the applicable vesting date.

SEC source: 0001209191-23-040029 · doc4.xml · derivative · entry 6

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 611,738

Underlying: Common Stock · 9,231 shares

Expires 2028-01-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: Represents non-qualified stock options granted on January 4, 2018, 25% of which vested on November 6, 2018 and the remainder of which vested at a rate of 6.25% per quarter thereafter, subject to Mr. Allais's continued employment. The options fully vested on November 6, 2021.

SEC source: 0001209191-23-040029 · doc4.xml · nonDerivative · entry 4

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 59,674

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 23, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $37.89 to $37.55, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001209191-23-040029 · doc4.xml · nonDerivative · entry 3

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 68,905

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-040172 · doc4.xml · nonDerivative · entry 1

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 130,871

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 31, 2022, as amended on March 23, 2023.

SEC source: 0001209191-23-040171 · doc4.xml · derivative · entry 3

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 512,276

Underlying: Common Stock · 11,002 shares

Expires 2027-09-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: Represents non-qualified stock options granted on September 20, 2017 that vested on November 22, 2021 upon Providence VII U.S. Holdings L.P. receiving cumulative cash proceeds in respect of its investment in the Issuer equal to two times its aggregate cash investment in the Issuer.

F1 · ownership.nature: Represents shares and options held by the Laura B. Desmond Revocable Trust for which Ms. Desmond is trustee.

SEC source: 0001209191-23-040171 · doc4.xml · nonDerivative · entry 2

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 179,071

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 30, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $37.52 to $38.03, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F1 · ownership.nature: Represents shares and options held by the Laura B. Desmond Revocable Trust for which Ms. Desmond is trustee.

SEC source: 0001209191-23-040171 · doc4.xml · nonDerivative · entry 1

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 190,073

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.nature: Represents shares and options held by the Laura B. Desmond Revocable Trust for which Ms. Desmond is trustee.

SEC source: 0001209191-23-040029 · doc4.xml · derivative · entry 5

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 620,969

Underlying: Common Stock · 9,231 shares

Expires 2028-01-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: Represents non-qualified stock options granted on January 4, 2018, 25% of which vested on November 6, 2018 and the remainder of which vested at a rate of 6.25% per quarter thereafter, subject to Mr. Allais's continued employment. The options fully vested on November 6, 2021.

SEC source: 0001209191-23-040029 · doc4.xml · nonDerivative · entry 2

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 59,674

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 23, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $36.99 to $37.51 inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001209191-23-040029 · doc4.xml · nonDerivative · entry 1

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 68,905

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-038337 · doc4.xml · derivative · entry 10

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 201,174

Underlying: Common Stock · 55,999 shares

Expires 2030-04-27

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F9 · shares: Represents non-qualified stock options granted on April 27, 2020, 25% of which vested on March 30, 2021 and the remainder of which vest at a rate of 6.25% per quarter thereafter, subject to Mr. Grimmig's continued employment.

F9 · derivative.exercise_date: Represents non-qualified stock options granted on April 27, 2020, 25% of which vested on March 30, 2021 and the remainder of which vest at a rate of 6.25% per quarter thereafter, subject to Mr. Grimmig's continued employment.

SEC source: 0001209191-23-038337 · doc4.xml · nonDerivative · entry 6

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 57,760

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 22, 2022.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $36.62 to $37.02, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001209191-23-038337 · doc4.xml · nonDerivative · entry 5

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 113,759

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-038336 · doc4.xml · derivative · entry 6

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,124

Underlying: Common Stock · 3,438 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F3 · derivative.exercise_date: The restricted stock units were granted on December 12, 2022. 6.25% of the restricted stock units vested and were settled 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.

F3 · derivative.expiration_date: The restricted stock units were granted on December 12, 2022. 6.25% of the restricted stock units vested and were settled 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.

SEC source: 0001209191-23-038336 · doc4.xml · derivative · entry 5

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,910

Underlying: Common Stock · 1,991 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

SEC source: 0001209191-23-038336 · doc4.xml · nonDerivative · entry 4

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,621

F4 · kind: Represents shares withheld to satisfy tax obligations in connection with the vesting of 3,438 restricted stock units on June 15, 2023.

SEC source: 0001209191-23-038336 · doc4.xml · nonDerivative · entry 3

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,095

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · price: The restricted stock units were granted on December 12, 2022. 6.25% of the restricted stock units vested and were settled 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.

SEC source: 0001209191-23-038336 · doc4.xml · nonDerivative · entry 2

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,657

F2 · kind: Represents shares withheld to satisfy tax obligations in connection with the vesting of 1,991 restricted stock units on June 15, 2023.

SEC source: 0001209191-23-038336 · doc4.xml · nonDerivative · entry 1

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 130,511

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

SEC source: 0001209191-23-038335 · doc4.xml · derivative · entry 6

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,874

Underlying: Common Stock · 4,063 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F3 · derivative.exercise_date: The restricted stock units were granted on December 12, 2022. 6.25% of the restricted stock units vested and were settled 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.

F3 · derivative.expiration_date: The restricted stock units were granted on December 12, 2022. 6.25% of the restricted stock units vested and were settled 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.

SEC source: 0001209191-23-038335 · doc4.xml · derivative · entry 5

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,888

Underlying: Common Stock · 2,489 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

SEC source: 0001209191-23-038335 · doc4.xml · nonDerivative · entry 4

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,674

F4 · kind: Represents shares withheld to satisfy tax obligations in connection with the vesting of 4,063 restricted stock units on June 15, 2023.

SEC source: 0001209191-23-038335 · doc4.xml · nonDerivative · entry 3

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,006

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · price: The restricted stock units were granted on December 12, 2022. 6.25% of the restricted stock units vested and were settled 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.

SEC source: 0001209191-23-038335 · doc4.xml · nonDerivative · entry 2

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,943

F2 · kind: Represents shares withheld to satisfy tax obligations in connection with the vesting of 2,489 restricted stock units on June 15, 2023.

SEC source: 0001209191-23-038335 · doc4.xml · nonDerivative · entry 1

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,372

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

SEC source: 0001209191-23-038337 · doc4.xml · derivative · entry 9

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 257,173

Underlying: Common Stock · 64,001 shares

Expires 2030-04-27

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F9 · shares: Represents non-qualified stock options granted on April 27, 2020, 25% of which vested on March 30, 2021 and the remainder of which vest at a rate of 6.25% per quarter thereafter, subject to Mr. Grimmig's continued employment.

F9 · derivative.exercise_date: Represents non-qualified stock options granted on April 27, 2020, 25% of which vested on March 30, 2021 and the remainder of which vest at a rate of 6.25% per quarter thereafter, subject to Mr. Grimmig's continued employment.

SEC source: 0001209191-23-038337 · doc4.xml · derivative · entry 8

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Common Stock · 2,500 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F7 · shares: As reported previously, the reporting person made an election under the Issuer's deferred compensation plan to defer delivery of the first four tranches of vested shares until March 2024 or, if sooner, as soon as administratively feasible following his separation from service with the Issuer.

F8 · derivative.exercise_date: 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.

F8 · derivative.expiration_date: 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.

F7 · derivative.underlying_shares: As reported previously, the reporting person made an election under the Issuer's deferred compensation plan to defer delivery of the first four tranches of vested shares until March 2024 or, if sooner, as soon as administratively feasible following his separation from service with the Issuer.

SEC source: 0001209191-23-038337 · doc4.xml · derivative · entry 7

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,930

Underlying: Common Stock · 1,493 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

SEC source: 0001209191-23-038337 · doc4.xml · nonDerivative · entry 4

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 57,760

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 22, 2022.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $36.45 to $37.08, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001209191-23-038337 · doc4.xml · nonDerivative · entry 3

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 121,761

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-038337 · doc4.xml · nonDerivative · entry 2

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 57,760

F2 · kind: Represents shares withheld to satisfy tax obligations in connection with the vesting of 1,493 RSUs on June 15, 2023.

SEC source: 0001209191-23-038337 · doc4.xml · nonDerivative · entry 1

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58,482

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

SEC source: 0001209191-23-038341 · doc4.xml · derivative · entry 4

Zagorski Mark · CIK 0001709574 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,250

Underlying: Common Stock · 9,375 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F4 · shares: 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 · derivative.exercise_date: 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.

F5 · derivative.expiration_date: 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.

F4 · derivative.underlying_shares: 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.

SEC source: 0001209191-23-038341 · doc4.xml · derivative · entry 3

Zagorski Mark · CIK 0001709574 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,710

Underlying: Common Stock · 6,471 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

SEC source: 0001209191-23-038341 · doc4.xml · nonDerivative · entry 2

Zagorski Mark · CIK 0001709574 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 348,016

F2 · kind: Represents shares withheld to satisfy tax obligations in connection with the vesting of 6,471 RSUs on June 15, 2023.

SEC source: 0001209191-23-038341 · doc4.xml · nonDerivative · entry 1

Zagorski Mark · CIK 0001709574 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 351,048

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

SEC source: 0001209191-23-037303 · doc4.xml · derivative · entry 3

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 523,278

Underlying: Common Stock · 11,003 shares

Expires 2027-09-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: Represents non-qualified stock options granted on September 20, 2017 that vested on November 22, 2021 upon Providence VII U.S. Holdings L.P. receiving cumulative cash proceeds in respect of its investment in the Issuer equal to two times its aggregate cash investment in the Issuer.

F1 · ownership.nature: Represents shares and options held by the Laura B. Desmond Revocable Trust for which Ms. Desmond is trustee.

SEC source: 0001209191-23-037303 · doc4.xml · nonDerivative · entry 2

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 179,071

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 30, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $36.09 to $36.535, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F1 · ownership.nature: Represents shares and options held by the Laura B. Desmond Revocable Trust for which Ms. Desmond is trustee.

SEC source: 0001209191-23-037303 · doc4.xml · nonDerivative · entry 1

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 190,074

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.nature: Represents shares and options held by the Laura B. Desmond Revocable Trust for which Ms. Desmond is trustee.

SEC source: 0001209191-23-035095 · doc4.xml · derivative · entry 1

Jain Sundeep · CIK 0001936390 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,709

Underlying: Common Stock · 5,709 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Represents time-based restricted stock units granted on June 5, 2023 pursuant to the annual equity grant under DoubleVerify Holdings, Inc.'s non-employee director compensation program. The restricted stock units vest on the earlier of (i) June 5, 2024 or and (ii) the date of DoubleVerify Holdings, Inc.'s 2024 Annual Meeting of Stockholders, subject to Mr. Jain's continued services.

F2 · derivative.expiration_date: Represents time-based restricted stock units granted on June 5, 2023 pursuant to the annual equity grant under DoubleVerify Holdings, Inc.'s non-employee director compensation program. The restricted stock units vest on the earlier of (i) June 5, 2024 or and (ii) the date of DoubleVerify Holdings, Inc.'s 2024 Annual Meeting of Stockholders, subject to Mr. Jain's continued services.

SEC source: 0001209191-23-035097 · doc4.xml · derivative · entry 1

Perez Rosario C · CIK 0001886750 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,709

Underlying: Common Stock · 5,709 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Represents time-based restricted stock units granted on June 5, 2023 pursuant to the annual equity grant under DoubleVerify Holdings, Inc.'s non-employee director compensation program. The restricted stock units vest on the earlier of (i) June 5, 2024 and (ii) the date of DoubleVerify Holdings, Inc.'s 2024 Annual Meeting of Stockholders, subject to Ms. Perez's continued services.

F2 · derivative.expiration_date: Represents time-based restricted stock units granted on June 5, 2023 pursuant to the annual equity grant under DoubleVerify Holdings, Inc.'s non-employee director compensation program. The restricted stock units vest on the earlier of (i) June 5, 2024 and (ii) the date of DoubleVerify Holdings, Inc.'s 2024 Annual Meeting of Stockholders, subject to Ms. Perez's continued services.

SEC source: 0001209191-23-035105 · doc4.xml · derivative · entry 1

Turner Kelli · CIK 0001459490 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,709

Underlying: Common Stock · 5,709 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Represents time-based restricted stock units granted on June 5, 2023 pursuant to the annual equity grant under DoubleVerify Holdings, Inc.'s non-employee director compensation program. The restricted stock units vest on the earlier of (i) June 5, 2024 and (ii) the date of DoubleVerify Holdings, Inc.'s 2024 Annual Meeting of Stockholders, subject to Ms. Turner's continued services.

F2 · derivative.expiration_date: Represents time-based restricted stock units granted on June 5, 2023 pursuant to the annual equity grant under DoubleVerify Holdings, Inc.'s non-employee director compensation program. The restricted stock units vest on the earlier of (i) June 5, 2024 and (ii) the date of DoubleVerify Holdings, Inc.'s 2024 Annual Meeting of Stockholders, subject to Ms. Turner's continued services.

SEC source: 0001209191-23-035108 · doc4.xml · derivative · entry 1

Wagner Scott · CIK 0001342655 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By LLC

Disclosed balance after: 5,709

Underlying: Common Stock · 5,709 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Represents time-based restricted stock units granted on June 5, 2023 pursuant to the annual equity grant under DoubleVerify Holdings, Inc.'s non-employee director compensation program. The restricted stock units vest on the earlier of (i) June 5, 2024 and (ii) the date of DoubleVerify Holdings, Inc.'s 2024 Annual Meeting of Stockholders, subject to Mr. Wagner's continued services.

F2 · derivative.expiration_date: Represents time-based restricted stock units granted on June 5, 2023 pursuant to the annual equity grant under DoubleVerify Holdings, Inc.'s non-employee director compensation program. The restricted stock units vest on the earlier of (i) June 5, 2024 and (ii) the date of DoubleVerify Holdings, Inc.'s 2024 Annual Meeting of Stockholders, subject to Mr. Wagner's continued services.

F3 · ownership.nature: Represents restricted stock units held by Hilltopper LLC, which is wholly-owned by Mr. Wagner.

SEC source: 0001209191-23-035096 · doc4.xml · derivative · entry 1

List Teri · CIK 0001529370 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,709

Underlying: Common Stock · 5,709 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Represents time-based restricted stock units granted on June 5, 2023 pursuant to the annual equity grant under DoubleVerify Holdings, Inc.'s non-employee director compensation program. The restricted stock units vest on the earlier of (i) June 5, 2024 and (ii) the date of DoubleVerify Holdings, Inc.'s 2024 Annual Meeting of Stockholders, subject to Ms. List's continued services.

F2 · derivative.expiration_date: Represents time-based restricted stock units granted on June 5, 2023 pursuant to the annual equity grant under DoubleVerify Holdings, Inc.'s non-employee director compensation program. The restricted stock units vest on the earlier of (i) June 5, 2024 and (ii) the date of DoubleVerify Holdings, Inc.'s 2024 Annual Meeting of Stockholders, subject to Ms. List's continued services.