DoubleVerify (DV) CEO Zagorski details RSU vesting and updated holdings

Rhea-AI Filing Summary

DoubleVerify Holdings insider activity: Chief Executive Officer and director Mark S. Zagorski reported equity transactions involving company stock. On 12/31/2025, 13,476 restricted stock units (RSUs) vested and converted into common stock at an exercise price of $0, increasing his directly held shares. On the same date, 7,453 shares of common stock were withheld at a price of $11.44 to cover tax withholding obligations tied to this vesting. After these transactions, he beneficially owned 488,586 shares of common stock directly and 148,232 RSUs, which each convert into one share of common stock under the award terms.

Insider Trade Summary

Net Buyer: 6,023 shares

Net Buy 3 txns

Insider Zagorski Mark

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	13,476	$0.00	$0.00
Exercise	Common Stock	13,476	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	7,453	$11.44	$85K

Holdings After Transaction: Restricted Stock Units — 148,232 shares (Direct); Common Stock — 488,586 shares (Direct)

Footnotes (3)

1. F1. Each restricted stock unit was granted on August 19, 2025. 8.33% of the restricted stock units vested and were settled on December 31, 2025 (the "2025 Vesting Date"), and the remainder of the restricted stock units vest at a rate of 8.33% on each quarterly anniversary of the 2025 Vesting Date, subject to Mr. Zagorski's continued employment.
2. F2. Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.
3. F3. Restricted stock units convert into common stock on a one-for-one basis.

FAQ

What insider transaction did DoubleVerify (DV) disclose for its CEO?

The filing shows that Chief Executive Officer and director Mark S. Zagorski had 13,476 restricted stock units vest and convert into common stock on 12/31/2025, and shares were withheld to cover taxes.

How many DoubleVerify (DV) shares did the CEO acquire through vesting?

Mark S. Zagorski acquired 13,476 shares of DoubleVerify common stock upon the vesting and settlement of 13,476 restricted stock units on 12/31/2025 at an exercise price of $0.

Why were some DoubleVerify (DV) shares disposed of in this Form 4?

The filing states that 7,453 shares of DoubleVerify common stock were withheld at a price of $11.44 to satisfy tax withholding obligations related to the vesting of restricted stock units.

What is the CEO’s DoubleVerify (DV) share ownership after the reported transactions?

Following the reported transactions, Mark S. Zagorski beneficially owned 488,586 shares of DoubleVerify common stock directly, as disclosed in the filing.

How many restricted stock units in DoubleVerify (DV) does the CEO still hold?

After the vesting event, Mark S. Zagorski beneficially owned 148,232 restricted stock units, each of which converts into one share of DoubleVerify common stock.

What are the vesting terms of the CEO’s DoubleVerify (DV) restricted stock units granted in 2025?

The filing explains that RSUs were granted on August 19, 2025. 8.33% vested and settled on December 31, 2025, and the remaining RSUs vest 8.33% on each quarterly anniversary of that date, subject to his continued employment.

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 01/05/2026 - 04:08 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^*

Zagorski Mark

(Last) (First) (Middle)

C/O DOUBLEVERIFY HOLDINGS, INC.

462 BROADWAY

(Street)

NEW YORK NY 10013

(City) (State) (Zip)

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

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
12/31/2025

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

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

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

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	12/31/2025		M		13,476	A	$0(1)	496,039	D
Common Stock	12/31/2025		F(2)		7,453	D	$11.44	488,586	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	(3)	12/31/2025		M			13,476	(1)	(1)	Common Stock	13,476	$0	148,232	D

Explanation of Responses:

1. Each restricted stock unit was granted on August 19, 2025. 8.33% of the restricted stock units vested and were settled on December 31, 2025 (the "2025 Vesting Date"), and the remainder of the restricted stock units vest at a rate of 8.33% on each quarterly anniversary of the 2025 Vesting Date, subject to Mr. Zagorski's continued employment.

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

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

	/s/ Andrew E. Grimmig, as Attorney-in-Fact for Mark S. Zagorski	01/05/2026
	** 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.