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Mougis Steven John

Disclosed activity across 1 company

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37087
SEC CIK
0002104368

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
DoubleVerify Holdings, Inc.DV · Entity 4486Global Chief Comm. OfficerSeptember 15, 2026September 17, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

DoubleVerify Holdings, Inc.

Report date September 15, 2026 · Filed September 17, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect116,676 Ending reported balance After 2026-09-15 transaction · row 14
14 source rows · reconciled sequence

Row 1 · 2026-09-15 · Exercise / conversion · Acquired 9,376 · Balance 104,536

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.

Row 2 · 2026-09-15 · Tax withholding · Disposed 4,787 · Balance 99,749

F2: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Row 3 · 2026-09-15 · Exercise / conversion · Acquired 841 · Balance 100,590

F3: Each performance stock unit was granted on March 31, 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.

Row 4 · 2026-09-15 · Tax withholding · Disposed 430 · Balance 100,160

F4: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of performance stock units.

Row 5 · 2026-09-15 · Exercise / conversion · Acquired 3,171 · Balance 103,331

F5: Each restricted stock unit was granted on March 31, 2025. 6.25% of the restricted stock units vested and settled on June 15, 2025 (the "2025 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2025 Vesting Date.

Row 6 · 2026-09-15 · Tax withholding · Disposed 1,619 · Balance 101,712

F2: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Row 7 · 2026-09-15 · Exercise / conversion · Acquired 27,056 · Balance 128,768

F6: Each restricted stock unit was granted on March 13, 2025. 12.5% of the restricted stock units vested and were settled on the 2025 Vesting Date, and the remainder of the restricted stock units vest and settle at a rate of 12.5% on each quarterly anniversary of the 2025 Vesting Date.

Row 8 · 2026-09-15 · Tax withholding · Disposed 13,813 · Balance 114,955

F2: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Row 9 · 2026-09-15 · Exercise / conversion · Acquired 251 · Balance 115,206

F7: Each performance stock unit was granted on March 15, 2024. 41.67% of the earned shares vested and were settled on March 15, 2025 (the "2025 PSU 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 PSU Vesting Date.

Row 10 · 2026-09-15 · Tax withholding · Disposed 129 · Balance 115,077

F4: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of performance stock units.

Row 11 · 2026-09-15 · Exercise / conversion · Acquired 2,125 · Balance 117,202

F8: Each restricted stock unit was granted on March 15, 2024. 6.25% of the restricted stock units vested and settled on June 15, 2024 (the "2024 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2024 Vesting Date.

Row 12 · 2026-09-15 · Tax withholding · Disposed 1,085 · Balance 116,117

F2: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Row 13 · 2026-09-15 · Exercise / conversion · Acquired 1,143 · Balance 117,260

F9: Each restricted stock unit was granted on March 15, 2023. 6.25% of the restricted stock units vested and settled on June 15, 2023 (the "2023 Vesting Date") and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2023 Vesting Date.

Row 14 · 2026-09-15 · Tax withholding · Disposed 584 · Balance 116,676

F2: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect84,372 Reported balance After 2026-09-15 transaction · row 15 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 15 · 2026-09-15 · Exercise / conversion · Disposed 9,376 · Balance 84,372

F10: Restricted stock units convert into common stock on a one-for-one basis.

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.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect31,705 Reported balance After 2026-09-15 transaction · row 17 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 17 · 2026-09-15 · Exercise / conversion · Disposed 3,171 · Balance 31,705

F10: Restricted stock units convert into common stock on a one-for-one basis.

F5: Each restricted stock unit was granted on March 31, 2025. 6.25% of the restricted stock units vested and settled on June 15, 2025 (the "2025 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2025 Vesting Date.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect54,112 Reported balance After 2026-09-15 transaction · row 18 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 18 · 2026-09-15 · Exercise / conversion · Disposed 27,056 · Balance 54,112

F10: Restricted stock units convert into common stock on a one-for-one basis.

F6: Each restricted stock unit was granted on March 13, 2025. 12.5% of the restricted stock units vested and were settled on the 2025 Vesting Date, and the remainder of the restricted stock units vest and settle at a rate of 12.5% on each quarterly anniversary of the 2025 Vesting Date.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect12,748 Reported balance After 2026-09-15 transaction · row 20 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 20 · 2026-09-15 · Exercise / conversion · Disposed 2,125 · Balance 12,748

F10: Restricted stock units convert into common stock on a one-for-one basis.

F8: Each restricted stock unit was granted on March 15, 2024. 6.25% of the restricted stock units vested and settled on June 15, 2024 (the "2024 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2024 Vesting Date.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect2,286 Reported balance After 2026-09-15 transaction · row 21 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 21 · 2026-09-15 · Exercise / conversion · Disposed 1,143 · Balance 2,286

F10: Restricted stock units convert into common stock on a one-for-one basis.

F9: Each restricted stock unit was granted on March 15, 2023. 6.25% of the restricted stock units vested and settled on June 15, 2023 (the "2023 Vesting Date") and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2023 Vesting Date.

Performance Stock UnitsSEC Table II · derivative / convertible securityDirect4,208 Reported balance After 2026-09-15 transaction · row 16 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 16 · 2026-09-15 · Exercise / conversion · Disposed 841 · Balance 4,208

F11: Performance stock units convert into common stock on a one-for-one basis.

F3: Each performance stock unit was granted on March 31, 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.

Performance Stock UnitsSEC Table II · derivative / convertible securityDirect251 Reported balance After 2026-09-15 transaction · row 19 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 19 · 2026-09-15 · Exercise / conversion · Disposed 251 · Balance 251

F11: Performance stock units convert into common stock on a one-for-one basis.

F7: Each performance stock unit was granted on March 15, 2024. 41.67% of the earned shares vested and were settled on March 15, 2025 (the "2025 PSU 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 PSU Vesting Date.

Filing footnotes · ownership attribution and instrument terms

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 31, 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 31, 2025. 6.25% of the restricted stock units vested and settled on June 15, 2025 (the "2025 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2025 Vesting Date.

F6: Each restricted stock unit was granted on March 13, 2025. 12.5% of the restricted stock units vested and were settled on the 2025 Vesting Date, and the remainder of the restricted stock units vest and settle at a rate of 12.5% on each quarterly anniversary of the 2025 Vesting Date.

F7: Each performance stock unit was granted on March 15, 2024. 41.67% of the earned shares vested and were settled on March 15, 2025 (the "2025 PSU 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 PSU Vesting Date.

F8: Each restricted stock unit was granted on March 15, 2024. 6.25% of the restricted stock units vested and settled on June 15, 2024 (the "2024 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2024 Vesting Date.

F9: Each restricted stock unit was granted on March 15, 2023. 6.25% of the restricted stock units vested and settled on June 15, 2023 (the "2023 Vesting Date") and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2023 Vesting Date.

F10: Restricted stock units convert into common stock on a one-for-one basis.

F11: Performance stock units convert into common stock on a one-for-one basis.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Exercise / conversionRestricted Stock Units · Derivative 9,376 $0.00 $0.00
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · derivative · entry 18

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,124

Underlying: Common Stock · 9,376 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.

F11 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Tax withholdingCommon Stock 151 $10.21 $1,541.71
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 16

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,591

F2 · kind: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Exercise / conversionCommon Stock 418 $0.00 $0.00
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 15

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,742

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.

F10 · price: Each restricted stock unit was granted on February 15, 2022. 6.25% of the restricted stock units vested and settled on June 15, 2022 (the "2022 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2022 Vesting Date.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Tax withholdingCommon Stock 413 $10.21 $4,216.73
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 14

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,324

F2 · kind: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Exercise / conversionCommon Stock 1,143 $0.00 $0.00
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 13

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,737

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 · price: Each restricted stock unit was granted on March 15, 2023. 6.25% of the restricted stock units vested and settled on June 15, 2023 (the "2023 Vesting Date") and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2023 Vesting Date.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Tax withholdingCommon Stock 91 $10.21 $929.11
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 12

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,594

F4 · kind: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of performance stock units.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Exercise / conversionCommon Stock 250 $0.00 $0.00
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 11

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,685

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.

F8 · price: Each performance stock unit was granted on March 15, 2024. 41.67% of the earned shares vested and were settled on March 15, 2025 (the "2025 PSU Vesting Date"), and the remainder of the earned shares vest at a rate of 8.33% on each quarterly anniversary of the 2025 PSU Vesting Date.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Tax withholdingCommon Stock 767 $10.21 $7,831.07
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 10

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,435

F2 · kind: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Exercise / conversionCommon Stock 2,125 $0.00 $0.00
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 9

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,202

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.

F7 · price: Each restricted stock unit was granted on March 15, 2024. 6.25% of the restricted stock units vested and settled on June 15, 2024 (the "2024 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2024 Vesting Date.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Tax withholdingCommon Stock 9,754 $10.21 $99,588.34
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 8

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,077

F2 · kind: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Exercise / conversionCommon Stock 27,056 $0.00 $0.00
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 7

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,831

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 · price: Each restricted stock unit was granted on March 13, 2025. The restricted stock units vested 12.5% on the 2025 Vesting Date, and the remainder of the restricted stock units vest at a rate of 12.5% on each quarterly anniversary of the 2025 Vesting Date.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Tax withholdingCommon Stock 1,144 $10.21 $11,680.24
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 6

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,775

F2 · kind: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Exercise / conversionCommon Stock 3,171 $0.00 $0.00
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 5

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,919

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 · price: Each restricted stock unit was granted on March 31, 2025. 6.25% of the restricted stock units vested and settled on June 15, 2025 (the "2025 Vesting Date"), and the remainder of the restricted stock units vest and settle at a rate of 6.25% on each quarterly anniversary of the 2025 Vesting Date.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Tax withholdingCommon Stock 1,519 $10.21 $15,508.99
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 4

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,748

F4 · kind: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of performance stock units.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Exercise / conversionCommon Stock 4,210 $0.00 $0.00
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 3

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,267

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: Each performance stock unit was granted on March 31, 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.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Tax withholdingCommon Stock 3,381 $10.21 $34,520.01
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 2

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,057

F2 · kind: Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Read SEC document
March 15, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 Exercise / conversionCommon Stock 9,376 $0.00 $0.00
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · nonDerivative · entry 1

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,438

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 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.

Read SEC document
March 12, 2026 Filed Mar 16, 2026 20:13 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 GrantRestricted Stock Units · Derivative 112,500 $0.00 $0.00
Disclosure

SEC source: 0001819928-26-000033 · form4.xml · derivative · entry 17

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,500

Underlying: Common Stock · 112,500 shares

Expires not disclosed

F11 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F12 · derivative.exercise_date: 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.

F12 · derivative.expiration_date: 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.

Read SEC document
March 10, 2026 Filed Mar 12, 2026 20:43 UTC DoubleVerify Holdings, Inc. DV · Entity 4486 GrantPerformance Stock Units · Derivative 10,101 $0.00 $0.00
Disclosure

SEC source: 0001819928-26-000028 · form4.xml · derivative · entry 1

Mougis Steven John · CIK 0002104368 · Global Chief Comm. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,101

Underlying: Common Stock · 10,101 shares

Expires not disclosed

F1 · security: On March 31, 2025, the Reporting Person received a performance stock unit ("PSU") grant of 8,455 units. In light of the performance-based conditions of the award, the award was not reportable under Section 16 until the performance-based conditions were certified by the Issuer's Compensation Committee. Such certification occurred on March 10, 2026, pursuant to which 10,101 shares were earned. 41.67% of the earned shares will vest and settle on March 15, 2026 (the "2026 Vesting Date"), and the remainder of the earned shares will vest at a rate of 8.33% on each quarterly anniversary of the 2026 Vesting Date.

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

F1 · derivative.exercise_date: On March 31, 2025, the Reporting Person received a performance stock unit ("PSU") grant of 8,455 units. In light of the performance-based conditions of the award, the award was not reportable under Section 16 until the performance-based conditions were certified by the Issuer's Compensation Committee. Such certification occurred on March 10, 2026, pursuant to which 10,101 shares were earned. 41.67% of the earned shares will vest and settle on March 15, 2026 (the "2026 Vesting Date"), and the remainder of the earned shares will vest at a rate of 8.33% on each quarterly anniversary of the 2026 Vesting Date.

F1 · derivative.expiration_date: On March 31, 2025, the Reporting Person received a performance stock unit ("PSU") grant of 8,455 units. In light of the performance-based conditions of the award, the award was not reportable under Section 16 until the performance-based conditions were certified by the Issuer's Compensation Committee. Such certification occurred on March 10, 2026, pursuant to which 10,101 shares were earned. 41.67% of the earned shares will vest and settle on March 15, 2026 (the "2026 Vesting Date"), and the remainder of the earned shares will vest at a rate of 8.33% on each quarterly anniversary of the 2026 Vesting Date.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.