DV

SEC source: 0001209191-23-056891 · doc4.xml · nonDerivative · entry 1

Noell Robert Davis · CIK 0001472786 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 26,122,547

F1 · shares: The securities reported represent shares of common stock of DoubleVerify Holdings, Inc. (the "Issuer") sold by Providence VII U.S. Holdings L.P. ("Providence VII"), after the underwriters' exercise of their option to purchase an additional 1,862,992 shares of the Issuer's common stock from Providence VII, in an underwritten offering at a net price per share of $30.275.

F1 · price: The securities reported represent shares of common stock of DoubleVerify Holdings, Inc. (the "Issuer") sold by Providence VII U.S. Holdings L.P. ("Providence VII"), after the underwriters' exercise of their option to purchase an additional 1,862,992 shares of the Issuer's common stock from Providence VII, in an underwritten offering at a net price per share of $30.275.

F2 · ownership.nature: The record and other beneficial owners of the reported securities have separately filed Form 4s.

F3 · ownership.nature: The securities reported are held directly by Providence VII and may be deemed to be beneficially owned by Providence Equity GP VII-A L.P. ("Providence GP") because Providence GP is the general partner of Providence VII. Jonathan M. Nelson, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez control Providence Holdco (International) GP Ltd. ("Holdco"), which is the general partner of Providence Fund Holdco (International) L.P. Providence Fund Holdco (International) L.P. is the general partner of PEP VII-A International Ltd., which is the general partner of Providence GP.

F4 · ownership.nature: Jonathan M. Nelson, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez may be deemed to exercise voting and investment power over, and thus may be deemed to beneficially own, the securities held by Providence VII due to their relationships with Holdco. R. Davis Noell hereby disclaims beneficial ownership of the shares held by Providence VII, except to the extent of his pecuniary interest therein, and this form shall not be construed as an admission that R. Davis Noell is the beneficial owner of any of the securities reported on this form.

SEC source: 0001209191-23-055504 · doc4.xml · derivative · entry 8

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 0

Underlying: Common Stock · 203,745 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.

F6 · shares: Represents non-qualified stock options granted on September 20, 2017, 25% of which vested on September 20, 2018 and the remainder of which vested at a rate of 6.25% per quarter thereafter, subject to Ms. Desmond's continued service. The options fully vested on September 20, 2021.

F6 · derivative.exercise_date: Represents non-qualified stock options granted on September 20, 2017, 25% of which vested on September 20, 2018 and the remainder of which vested at a rate of 6.25% per quarter thereafter, subject to Ms. Desmond's continued service. The options fully vested on September 20, 2021.

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

SEC source: 0001209191-23-055504 · doc4.xml · derivative · entry 7

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 156,546

Underlying: Common Stock · 233,000 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.

F5 · 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: 0001209191-23-055504 · doc4.xml · nonDerivative · entry 5

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 179,071

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $31.36 to $32.02, 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.

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

SEC source: 0001209191-23-055504 · doc4.xml · nonDerivative · entry 4

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 615,816

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: 0001209191-23-055504 · doc4.xml · nonDerivative · entry 3

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 412,071

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: 0001209191-23-055702 · doc4.xml · nonDerivative · entry 2

Providence VII U.S. Holdings L.P. · CIK 0001854132 · 10% owner

Providence Equity GP VII-A L.P. · CIK 0001857469 · 10% owner

Providence Butternut Co-Investment L.P. · CIK 0001831271 · 10% owner

NELSON JONATHAN M · CIK 0001035233 · 10% owner

Phillips J. David · CIK 0001476657 · 10% owner

Tabet Karim A · CIK 0001857194 · 10% owner

Tisdale Andrew A · CIK 0001857411 · 10% owner

Dominguez Michael J · CIK 0001320307 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Providence Butternut Co-Investment L.P.

Disclosed balance after: 180,369

F5 · shares: The securities reported represent shares of common stock of the Issuer sold by Providence Butternut Co-Investment L.P. ("Providence Butternut") in an underwritten offering at a net price per share of $30.275.

F5 · price: The securities reported represent shares of common stock of the Issuer sold by Providence Butternut Co-Investment L.P. ("Providence Butternut") in an underwritten offering at a net price per share of $30.275.

F4 · ownership.nature: R. Davis Noell has separately filed a Form 4.

F6 · ownership.nature: The securities reported are held directly by Providence Butternut and may be deemed to be beneficially owned by Providence GP because Providence GP is the general partner of Providence Butternut. Jonathan M. Nelson, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez control Holdco, which is the general partner of Providence Fund Holdco (International) L.P. Providence Fund Holdco (International) L.P. is the general partner of PEP VII-A International Ltd., which is the general partner of Providence GP.

F7 · ownership.nature: Jonathan M. Nelson, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez may be deemed to exercise voting and investment power over, and thus may be deemed to beneficially own, the securities held by Providence Butternut due to their relationships with Holdco. Each of Providence GP, Jonathan M. Nelson, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez hereby disclaims beneficial ownership of the shares held by Providence Butternut, except to the extent of its or his pecuniary interest therein, and this form shall not be construed as an admission that any such reporting person is the beneficial owner of any of the securities reported on this form.

SEC source: 0001209191-23-055702 · doc4.xml · nonDerivative · entry 1

Providence VII U.S. Holdings L.P. · CIK 0001854132 · 10% owner

Providence Equity GP VII-A L.P. · CIK 0001857469 · 10% owner

Providence Butternut Co-Investment L.P. · CIK 0001831271 · 10% owner

NELSON JONATHAN M · CIK 0001035233 · 10% owner

Phillips J. David · CIK 0001476657 · 10% owner

Tabet Karim A · CIK 0001857194 · 10% owner

Tisdale Andrew A · CIK 0001857411 · 10% owner

Dominguez Michael J · CIK 0001320307 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,985,539

F1 · shares: The securities reported represent shares of common stock of DoubleVerify Holdings, Inc. (the "Issuer") sold by Providence VII U.S. Holdings L.P. ("Providence VII") in an underwritten offering at a net price per share of $30.275.

F1 · price: The securities reported represent shares of common stock of DoubleVerify Holdings, Inc. (the "Issuer") sold by Providence VII U.S. Holdings L.P. ("Providence VII") in an underwritten offering at a net price per share of $30.275.

F2 · ownership.direct: The securities reported are held directly by Providence VII and may be deemed to be beneficially owned by Providence Equity GP VII-A L.P. ("Providence GP") because Providence GP is the general partner of Providence VII. Jonathan M. Nelson, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez control Providence Holdco (International) GP Ltd. ("Holdco"), which is the general partner of Providence Fund Holdco (International) L.P. Providence Fund Holdco (International) L.P. is the general partner of PEP VII-A International Ltd., which is the general partner of Providence GP.

F3 · ownership.direct: Jonathan M. Nelson, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez may be deemed to exercise voting and investment power over, and thus may be deemed to beneficially own, the securities held by Providence VII due to their relationships with Holdco. Each of Providence GP, Jonathan M. Nelson, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez hereby disclaims beneficial ownership of the shares held by Providence VII, except to the extent of its or his pecuniary interest therein, and this form shall not be construed as an admission that any such reporting person is the beneficial owner of any of the securities reported on this form.

F4 · ownership.direct: R. Davis Noell has separately filed a Form 4.

SEC source: 0001209191-23-055700 · doc4.xml · derivative · entry 3

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,913

Underlying: Common Stock · 1,983 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: RSUs convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on February 17, 2021 and represents a right to receive one share of common stock on a one-to-one basis. 25% of the RSUs vested and were settled on February 15, 2022, and the other remaining RSUs have continued, and will continue, to vest at a rate of 6.25% per quarter thereafter, subject to Mr. Grimmig's continued employment through the applicable vesting date.

F1 · derivative.expiration_date: Each restricted stock unit ("RSU") was granted on February 17, 2021 and represents a right to receive one share of common stock on a one-to-one basis. 25% of the RSUs vested and were settled on February 15, 2022, and the other remaining RSUs have continued, and will continue, to vest at a rate of 6.25% per quarter thereafter, subject to Mr. Grimmig's continued employment through the applicable vesting date.

SEC source: 0001209191-23-055700 · doc4.xml · nonDerivative · entry 2

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,581

F2 · kind: Represents shares withheld to satisfy tax obligations in connection with the vesting of 1,983 RSUs on November 15, 2023.

SEC source: 0001209191-23-055700 · doc4.xml · nonDerivative · entry 1

Grimmig Andrew E · CIK 0001854079 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,539

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 February 17, 2021 and represents a right to receive one share of common stock on a one-to-one basis. 25% of the RSUs vested and were settled on February 15, 2022, and the other remaining RSUs have continued, and will continue, to vest at a rate of 6.25% per quarter thereafter, subject to Mr. Grimmig's continued employment through the applicable vesting date.

SEC source: 0001209191-23-055703 · doc4.xml · nonDerivative · entry 2

Noell Robert Davis · CIK 0001472786 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Providence Butternut Co-Investment L.P

Disclosed balance after: 180,369

F5 · shares: The securities reported represent shares of common stock of the Issuer sold by Providence Butternut Co-Investment L.P. ("Providence Butternut") in an underwritten offering at a net price per share of $30.275.

F5 · price: The securities reported represent shares of common stock of the Issuer sold by Providence Butternut Co-Investment L.P. ("Providence Butternut") in an underwritten offering at a net price per share of $30.275.

F4 · ownership.nature: The record and other beneficial owners of the reported securities have separately filed Form 4s.

F6 · ownership.nature: The securities reported are held directly by Providence Butternut and may be deemed to be beneficially owned by Providence GP because Providence GP is the general partner of Providence Butternut. Jonathan M. Nelson, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez control Holdco, which is the general partner of Providence Fund Holdco (International) L.P. Providence Fund Holdco (International) L.P. is the general partner of PEP VII-A International Ltd., which is the general partner of Providence GP.

F7 · ownership.nature: Jonathan M. Nelson, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez may be deemed to exercise voting and investment power over, and thus may be deemed to beneficially own, the securities held by Providence Butternut due to their relationships with Holdco. R. Davis Noell hereby disclaims beneficial ownership of the shares held by Providence Butternut, except to the extent of his pecuniary interest therein, and this form shall not be construed as an admission that R. Davis Noell is the beneficial owner of any of the securities reported on this form.

SEC source: 0001209191-23-055703 · doc4.xml · nonDerivative · entry 1

Noell Robert Davis · CIK 0001472786 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 27,985,539

F1 · shares: The securities reported represent shares of common stock of DoubleVerify Holdings, Inc. (the "Issuer") sold by Providence VII U.S. Holdings L.P. ("Providence VII") in an underwritten offering at a net price per share of $30.275.

F1 · price: The securities reported represent shares of common stock of DoubleVerify Holdings, Inc. (the "Issuer") sold by Providence VII U.S. Holdings L.P. ("Providence VII") in an underwritten offering at a net price per share of $30.275.

F2 · ownership.nature: The securities reported are held directly by Providence VII and may be deemed to be beneficially owned by Providence Equity GP VII-A L.P. ("Providence GP") because Providence GP is the general partner of Providence VII. Jonathan M. Nelson, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez control Providence Holdco (International) GP Ltd. ("Holdco"), which is the general partner of Providence Fund Holdco (International) L.P. Providence Fund Holdco (International) L.P. is the general partner of PEP VII-A International Ltd., which is the general partner of Providence GP.

F3 · ownership.nature: Jonathan M. Nelson, R. Davis Noell, J. David Phillips, Karim A. Tabet, Andrew A. Tisdale and Michael J. Dominguez may be deemed to exercise voting and investment power over, and thus may be deemed to beneficially own, the securities held by Providence VII due to their relationships with Holdco. R. Davis Noell hereby disclaims beneficial ownership of the shares held by Providence VII, except to the extent of his pecuniary interest therein, and this form shall not be construed as an admission that R. Davis Noell is the beneficial owner of any of the securities reported on this form.

F4 · ownership.nature: The record and other beneficial owners of the reported securities have separately filed Form 4s.

SEC source: 0001209191-23-055332 · doc4.xml · derivative · entry 6

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 445,580

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: 0001209191-23-055332 · doc4.xml · nonDerivative · entry 4

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,602

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 $30.81 to $31.09, 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: 0001209191-23-055332 · doc4.xml · nonDerivative · entry 3

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 71,833

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: 0001209191-23-055505 · doc4.xml · nonDerivative · entry 2

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 137,085

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $31.325 to $31.335, 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: 0001209191-23-055505 · doc4.xml · nonDerivative · entry 1

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 141,306

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: 0001209191-23-055504 · doc4.xml · derivative · entry 6

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 389,546

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.

F5 · 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: 0001209191-23-055504 · 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 $31.05 to $31.59, 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: 0001209191-23-055504 · 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: 0001209191-23-055332 · doc4.xml · derivative · entry 5

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 454,811

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: 0001209191-23-055332 · doc4.xml · nonDerivative · entry 2

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,602

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 $29.79 to $30.34 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: 0001209191-23-055332 · doc4.xml · nonDerivative · entry 1

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 71,833

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: 0001209191-23-053841 · doc4.xml · derivative · entry 3

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,610

Underlying: Common Stock · 12,323 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: RSUs convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on January 28, 2021 and represents a right to receive one share of common stock on a one-to-one basis. 25% of the RSUs vested and were settled on April 20, 2021, upon the initial public offering of common stock of DoubleVerify Holdings, Inc. 25% of the remaining RSUs vested and were settled on January 26, 2022, and the other remaining RSUs have continued, and will continue, to vest at a rate of 6.25% per quarter thereafter, subject to Ms. Eddleman's continued employment through the applicable vesting date.

F1 · derivative.expiration_date: Each restricted stock unit ("RSU") was granted on January 28, 2021 and represents a right to receive one share of common stock on a one-to-one basis. 25% of the RSUs vested and were settled on April 20, 2021, upon the initial public offering of common stock of DoubleVerify Holdings, Inc. 25% of the remaining RSUs vested and were settled on January 26, 2022, and the other remaining RSUs have continued, and will continue, to vest at a rate of 6.25% per quarter thereafter, subject to Ms. Eddleman's continued employment through the applicable vesting date.

SEC source: 0001209191-23-053841 · doc4.xml · nonDerivative · entry 2

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,056

F2 · kind: Represents shares withheld to satisfy tax obligations in connection with the vesting of 12,323 RSUs on October 26, 2023.

SEC source: 0001209191-23-053841 · doc4.xml · nonDerivative · entry 1

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 147,337

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 January 28, 2021 and represents a right to receive one share of common stock on a one-to-one basis. 25% of the RSUs vested and were settled on April 20, 2021, upon the initial public offering of common stock of DoubleVerify Holdings, Inc. 25% of the remaining RSUs vested and were settled on January 26, 2022, and the other remaining RSUs have continued, and will continue, to vest at a rate of 6.25% per quarter thereafter, subject to Ms. Eddleman's continued employment through the applicable vesting date.

SEC source: 0001209191-23-053658 · doc4.xml · derivative · entry 3

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 400,549

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: 0001209191-23-053658 · 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 $28.10 to $28.69, 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: 0001209191-23-053658 · 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: 0001209191-23-053100 · doc4.xml · derivative · entry 6

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 464,042

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: 0001209191-23-053100 · doc4.xml · nonDerivative · entry 4

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,602

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 $27.95 to $28.30, 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: 0001209191-23-053100 · doc4.xml · nonDerivative · entry 3

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 71,833

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: 0001209191-23-053167 · doc4.xml · nonDerivative · entry 1

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 135,014

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: 0001209191-23-053100 · doc4.xml · derivative · entry 5

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 473,273

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: 0001209191-23-053100 · doc4.xml · nonDerivative · entry 2

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,602

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 $27.14 to $28.14 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: 0001209191-23-053100 · doc4.xml · nonDerivative · entry 1

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 71,833

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: 0001209191-23-052693 · doc4.xml · derivative · entry 4

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 411,551

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.

F5 · 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: 0001209191-23-052693 · doc4.xml · nonDerivative · entry 3

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.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $28.48 to $28.745, 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: 0001209191-23-052693 · doc4.xml · nonDerivative · entry 2

Desmond Laura · CIK 0001550028 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 184,206

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 $27.435 to $28.39, 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: 0001209191-23-052693 · 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: 0001209191-23-052523 · doc4.xml · derivative · entry 6

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 482,504

Underlying: Common Stock · 18,462 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: 0001209191-23-052523 · doc4.xml · nonDerivative · entry 4

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,602

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 $27.25 to $28.21, 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: 0001209191-23-052523 · doc4.xml · nonDerivative · entry 3

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 81,064

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: 0001209191-23-052523 · doc4.xml · derivative · entry 5

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 500,966

Underlying: Common Stock · 6,154 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: 0001209191-23-052523 · doc4.xml · nonDerivative · entry 2

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,602

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 $27.53 to $27.90 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: 0001209191-23-052523 · doc4.xml · nonDerivative · entry 1

Allais Nicola T · CIK 0001854086 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 68,756

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: 0001209191-23-052188 · doc4.xml · nonDerivative · entry 1

Eddleman Julie · CIK 0001853942 · Global Chief Comm. Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 135,764

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: 0001209191-23-051387 · doc4.xml · derivative · entry 3

Zagorski Mark · CIK 0001709574 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,665

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: 0001209191-23-051387 · doc4.xml · nonDerivative · entry 2

Zagorski Mark · CIK 0001709574 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 361,768

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