DoubleVerify exec vests 44K shares, 22K for taxes

DoubleVerify’s Global Chief Comm. Officer reported RSU and PSU vesting into common stock, with part of the shares withheld to satisfy tax obligations.

Rhea-AI Filing Summary

DoubleVerify Holdings, Inc. (DV) reported that its Global Chief Comm. Officer, Steven John Mougis, had multiple equity award vesting events on September 15, 2026. Restricted stock units and performance stock units converted on a one-for-one basis into common stock, and a portion of the resulting shares was withheld to cover tax obligations at $13.50 per share. No Rule 10b5-1 trading plan is reported, and no post-transaction share balances are stated.

Insider Trade Summary

43,963 shares exercised/converted

Exercise 21 txns

Insider Mougis Steven John

Role Global Chief Comm. Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units F10, F1	9,376	$0.00	$0.00
Exercise	Performance Stock Units F11, F3	841	$0.00	$0.00
Exercise	Restricted Stock Units F10, F5	3,171	$0.00	$0.00
Exercise	Restricted Stock Units F10, F6	27,056	$0.00	$0.00
Exercise	Performance Stock Units F11, F7	251	$0.00	$0.00
Exercise	Restricted Stock Units F10, F8	2,125	$0.00	$0.00
Exercise	Restricted Stock Units F10, F9	1,143	$0.00	$0.00
Exercise	Common Stock F1	9,376	$0.00	$0.00
Tax Withholding	Common Stock F2	4,787	$13.50	$65K
Exercise	Common Stock F3	841	$0.00	$0.00
Tax Withholding	Common Stock F4	430	$13.50	$6K
Exercise	Common Stock F5	3,171	$0.00	$0.00
Tax Withholding	Common Stock F2	1,619	$13.50	$22K
Exercise	Common Stock F6	27,056	$0.00	$0.00
Tax Withholding	Common Stock F2	13,813	$13.50	$186K
Exercise	Common Stock F7	251	$0.00	$0.00
Tax Withholding	Common Stock F4	129	$13.50	$2K
Exercise	Common Stock F8	2,125	$0.00	$0.00
Tax Withholding	Common Stock F2	1,085	$13.50	$15K
Exercise	Common Stock F9	1,143	$0.00	$0.00
Tax Withholding	Common Stock F2	584	$13.50	$8K

Holdings After Transaction: Restricted Stock Units — 185,223 contracts (Direct); Performance Stock Units — 4,459 contracts (Direct); Common Stock — 116,676 shares (Direct)

Footnotes (11)

1. 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.
2. F2. Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.
3. 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.
4. F4. Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of performance stock units.
5. 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.
6. 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.
7. 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.
8. 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.
9. 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.
10. F10. Restricted stock units convert into common stock on a one-for-one basis.
11. F11. Performance stock units convert into common stock on a one-for-one basis.

Key Figures

Derivative shares exercised or converted: 43,963 shares Shares used for tax withholding: 22,447 shares Tax withholding price: $13.50 per share +3 more

6 metrics

Derivative shares exercised or converted 43,963 shares Total shares in derivative exercises/conversions reported in the transaction summary

Shares used for tax withholding 22,447 shares Total shares in code F transactions for payment of tax liability

Tax withholding price $13.50 per share Price for common stock in all code F tax withholding dispositions

Common shares acquired via RSU/PSU conversion 43,963 shares Non-derivative common stock entries with code M tied to RSU/PSU vesting

RSU quarterly vesting rate (many grants) 6.25% or 8.33% per quarter Quarterly vesting percentages for various RSU grants described in footnotes

Initial PSU vesting tranche 41.67% of earned shares Portion of earned performance stock units vesting on the stated PSU vesting date

Key Terms

Restricted Stock Units, Performance Stock Units, tax withholding obligations, one-for-one basis, +1 more

5 terms

Restricted Stock Units financial

"Each restricted stock unit was granted on March 12, 2026."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Performance Stock Units financial

"Each performance stock unit was granted on March 31, 2025."

Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.

tax withholding obligations financial

"Represents shares withheld to satisfy tax withholding obligations"

one-for-one basis financial

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

vesting date financial

"vested and were settled on March 15, 2026 (the "2026 Vesting Date")"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did DoubleVerify (DV) executive Steven John Mougis report on this Form 4?

He reported vestings and conversions of restricted stock units and performance stock units into DoubleVerify common stock on September 15, 2026, with a portion of the resulting shares withheld to satisfy tax withholding obligations.

How many derivative shares vested or were exercised in this DV Form 4?

The filing’s summary shows 43,963 shares involved in derivative exercises or conversions (code M/C/X) across restricted stock units and performance stock units, all converting into common stock on a one-for-one basis.

How many DoubleVerify (DV) shares were withheld for taxes and at what price?

The Form 4 states that 22,447 shares of common stock were disposed of in code F transactions to satisfy tax withholding obligations, at a reported price of $13.50 per share.

Were Steven John Mougis’s DV transactions under a Rule 10b5-1 trading plan?

No. The filing’s Rule 10b5-1 checkbox is marked so that no Rule 10b5-1 trading plan is reported for these transactions.

What are the key vesting terms for the DV restricted stock units reported here?

Footnotes explain that several RSU grants vest quarterly after an initial vesting date (such as March 15, 2026 or earlier grant dates), typically with an initial tranche vesting on a stated vesting date and equal quarterly installments thereafter.

How do the reported DV performance stock units convert into common stock?

The performance stock units convert into common stock on a one-for-one basis, with portions (for example 41.67% of earned shares) vesting on a specified vesting date and the remainder vesting 8.33% each quarter thereafter, as described in the footnotes.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/17/2026 - 04:09 PM Accepted by SEC EDGAR 09/17/2026 - 04:09 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mougis Steven John

(Last) (First) (Middle)

C/O DOUBLEVERIFY HOLDINGS, INC.

462 BROADWAY

(Street)

NEW YORK NEW YORK 10013

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
DoubleVerify Holdings, Inc. [ DV ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Global Chief Comm. Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/15/2026		M		9,376	A	$0(1)	104,536	D
Common Stock	09/15/2026		F(2)		4,787	D	$13.5	99,749	D
Common Stock	09/15/2026		M		841	A	$0(3)	100,590	D
Common Stock	09/15/2026		F(4)		430	D	$13.5	100,160	D
Common Stock	09/15/2026		M		3,171	A	$0(5)	103,331	D
Common Stock	09/15/2026		F(2)		1,619	D	$13.5	101,712	D
Common Stock	09/15/2026		M		27,056	A	$0(6)	128,768	D
Common Stock	09/15/2026		F(2)		13,813	D	$13.5	114,955	D
Common Stock	09/15/2026		M		251	A	$0(7)	115,206	D
Common Stock	09/15/2026		F(4)		129	D	$13.5	115,077	D
Common Stock	09/15/2026		M		2,125	A	$0(8)	117,202	D
Common Stock	09/15/2026		F(2)		1,085	D	$13.5	116,117	D
Common Stock	09/15/2026		M		1,143	A	$0(9)	117,260	D
Common Stock	09/15/2026		F(2)		584	D	$13.5	116,676	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(10)	09/15/2026		M			9,376	(1)	(1)	Common Stock	9,376	$0	84,372	D
Performance Stock Units	(11)	09/15/2026		M			841	(3)	(3)	Common Stock	841	$0	4,208	D
Restricted Stock Units	(10)	09/15/2026		M			3,171	(5)	(5)	Common Stock	3,171	$0	31,705	D
Restricted Stock Units	(10)	09/15/2026		M			27,056	(6)	(6)	Common Stock	27,056	$0	54,112	D
Performance Stock Units	(11)	09/15/2026		M			251	(7)	(7)	Common Stock	251	$0	251	D
Restricted Stock Units	(10)	09/15/2026		M			2,125	(8)	(8)	Common Stock	2,125	$0	12,748	D
Restricted Stock Units	(10)	09/15/2026		M			1,143	(9)	(9)	Common Stock	1,143	$0	2,286	D

Explanation of Responses:

1. 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.

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

3. 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.

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

5. 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.

6. 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.

7. 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.

8. 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.

9. 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.

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

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

	/s/ Andrew E. Grimmig, as Attorney-in-Fact for Steven J. Mougis	09/17/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)