[Form 4] Integral Ad Science Holding Corp. Insider Trading Activity

Rhea-AI Filing Summary

Integral Ad Science Holding Corp. (IAS) reporting person Gil Alexis II, Chief Accounting Officer, sold 2,784 shares of the issuer's common stock on 09/03/2025 to satisfy tax withholding obligations tied to the settlement of restricted stock units. The shares were sold in multiple trades at prices ranging from $8.91 to $9.05 with a reported weighted average price of $8.98. After the transaction the reporting person beneficially owned 171,041 shares.

Positive

• Sale was for tax withholding tied to RSU settlement, indicating a routine administrative disposition rather than discretionary liquidation
• Reporting person retains significant holdings with 171,041 shares beneficially owned after the transaction
• Filing discloses price range ($8.91–$9.05) and weighted average ($8.98) and offers to provide detailed breakdowns on request

Negative

• Reduction in direct holdings by 2,784 shares as a result of the sale
• Form does not state outstanding share count, so the filing does not provide percentage ownership context

Insights

Financial Analyst

TL;DR: Insider sold a small number of shares to cover taxes; transaction appears routine and non-material to IAS valuation.

The sale of 2,784 shares at an average price of $8.98 was disclosed as a mandatory tax-withholding disposition following RSU settlement. Such dispositions are common when equity awards vest and do not necessarily signal a change in outlook or liquidity needs beyond tax obligations. The remaining beneficial ownership of 171,041 shares provides continued alignment with shareholder interests, though the filing does not state the total outstanding shares for percentage context.

Corporate Governance Expert

TL;DR: Transaction documented under Form 4 shows compliance with reporting rules; nature of sale reduces concern about voluntary insider divestment.

The Form 4 explicitly states the sale was a mandatory sale to cover tax liabilities from RSU settlement, which satisfies common practice for equity compensation tax-withholdings. The filing includes the required price range disclosure and an undertaking to provide detailed per-price sale quantities if requested, indicating procedural completeness. No additional governance issues or exceptions are disclosed.

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
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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^*

Gil Alexis II

(Last) (First) (Middle)

C/O INTEGRAL AD SCIENCE HOLDING CORP.

12 E. 49TH STREET, 20TH FLOOR

(Street)

NEW YORK NY 10017

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
INTEGRAL AD SCIENCE HOLDING CORP. [ IAS ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
09/03/2025

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, $0.001 par value	09/03/2025		S(1)		2,784	D	$8.98(2)	171,041	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. Mandatory sale to cover tax liability associated with the settlement of restricted stock units.

2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $8.91 to $9.05 per share. The reporting person undertakes to provide to Integral Ad Science Holding Corp., any security holder of Integral Ad Science Holding Corp. 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 herein.

Remarks:

	/s/ Yossi Almani, by Power of Attorney	09/04/2025
	** 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.

FAQ

What did the IAS insider sell according to this Form 4?

The reporting person sold 2,784 shares of Integral Ad Science common stock.

Why were the shares sold by the IAS reporting person?

The sale was a mandatory sale to cover tax liabilities associated with the settlement of restricted stock units.

At what prices were the IAS shares sold?

Shares were sold in multiple transactions at prices ranging from $8.91 to $9.05, with a weighted average price of $8.98.

How many IAS shares does the reporting person own after the transaction?

The reporting person beneficially owned 171,041 shares following the reported transaction.

Does this Form 4 indicate insider trading concerns for IAS (IAS)?

No material concerns are stated; the form identifies the sale as tax-withholding related, a routine administrative action.