Alexis Gil II - 03 Oct 2025 Form 4 Insider Report for INTEGRAL AD SCIENCE HOLDING CORP. (IAS)

Signature
/s/ Yossi Almani, by Power of Attorney
Issuer symbol
IAS
Transactions as of
03 Oct 2025
Net transactions value
-$35,905
Form type
4
Filing time
07 Oct 2025, 19:02:50 UTC
Previous filing
06 Oct 2025
Next filing
03 Dec 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Gil Alexis II Chief Accounting Officer C/O INTEGRAL AD SCIENCE HOLDING CORP., 12 E. 49TH STREET, 20TH FLOOR, NEW YORK /s/ Yossi Almani, by Power of Attorney 07 Oct 2025 0002001306

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IAS Common Stock, $0.001 par value Sale $35,905 -3,527 -2.5% $10.18 139,621 03 Oct 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan. Such Rule 10b5-1 trading plan was adopted by the Reporting Person on June 12, 2025.