INTEGRAL AD SCIENCE HOLDING CORP. — Director's Dealing 2025

May 13, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: INTEGRAL AD SCIENCE HOLDING CORP. (IAS)
CIK: 0001842718
Period of Report: 2025-05-09

Reporting Person: Lord Robert (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-09	Common Stock, $0.001 par value	A	17637	—	Acquired	29184	Direct

Footnotes

F1: Represents Restricted Stock Units which will be settled in shares of common stock of the Issuer and will vest in full on the anniversary of the grant date, subject to the Reporting Person's continued service with the Issuer.