DoubleVerify (DV) CEO logs ESPP purchase of 416 shares at $8.25

Rhea-AI Filing Summary

DoubleVerify Holdings, Inc. Chief Executive Officer Mark Zagorski reported a small administrative stock transaction under the company’s Employee Stock Purchase Plan. On the transaction date, 416 shares of common stock were purchased at $8.25 per share, reflecting a 15% ESPP discount. Following this, Zagorski directly held 547,158 common shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Zagorski Mark

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Other	Common Stock	416	$8.25	$3K

Holdings After Transaction: Common Stock — 547,158 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

ESPP shares acquired: 416 shares ESPP purchase price: $8.25 per share Post-transaction holdings: 547,158 shares +1 more

4 metrics

ESPP shares acquired 416 shares Common Stock under 2021 ESPP

ESPP purchase price $8.25 per share Purchase price under ESPP discount formula

Post-transaction holdings 547,158 shares Direct common stock ownership after transaction

ESPP discount 15% Discount to lesser of start-of-period or purchase-date price

Key Terms

Employee Stock Purchase Plan (ESPP), Form 4, Other acquisition or disposition, purchase price per share

4 terms

Employee Stock Purchase Plan (ESPP) financial

"Pursuant to the DoubleVerify Holdings, Inc. 2021 Employee Stock Purchase Plan (ESPP), the purchase price per share reported reflects a discount"

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Other acquisition or disposition financial

"transaction_code_description": "Other acquisition or disposition""

purchase price per share financial

"the purchase price per share reported reflects a discount of 15%"

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Form 4 Insider Transactions: What Each Field Means →

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 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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/31/2026

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	05/31/2026		J(1)	V	416	A	$8.25(1)	547,158	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

Explanation of Responses:

1. Pursuant to the DoubleVerify Holdings, Inc. 2021 Employee Stock Purchase Plan (ESPP), the purchase price per share reported reflects a discount of 15% of the lesser of the share price at the first day of the offering period or the purchase date.

	/s/ Andrew E. Grimmig, as Attorney-in-Fact for Mark S. Zagorski	06/03/2026
	** 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)

FAQ

What insider transaction did DoubleVerify (DV) CEO Mark Zagorski report?

Mark Zagorski reported a small Employee Stock Purchase Plan transaction involving 416 shares of DoubleVerify common stock. The shares were acquired through the 2021 ESPP and are reflected as an administrative Form 4 entry rather than an open-market trade.

At what price were the DV shares acquired in this ESPP transaction?

The shares were acquired at a purchase price of $8.25 per share under the 2021 Employee Stock Purchase Plan. This ESPP price includes a 15% discount based on the lesser of the share price at the offering period’s start or the purchase date.

How many DoubleVerify (DV) shares does Mark Zagorski hold after this Form 4?

After the reported ESPP transaction, Mark Zagorski directly held 547,158 shares of DoubleVerify common stock. This figure represents his post-transaction direct ownership as disclosed in the Form 4, providing context for the relatively small size of the ESPP purchase.

What is the nature of the Form 4 code J transaction for DV’s CEO?

The transaction is coded J, described as an “other acquisition or disposition.” In this case, it reflects an ESPP-related purchase rather than a standard open-market buy or sale, making it more of an administrative, compensation-linked entry than a discretionary stock trade.

How does the DoubleVerify 2021 ESPP pricing work for this transaction?

The 2021 Employee Stock Purchase Plan sets the purchase price at a 15% discount to the lesser of the share price on the first day of the offering period or the purchase date. The reported $8.25 per share reflects this discounted ESPP formula for participants.