Tania Secor - Jan 3, 2025 Form 4 Insider Report for INTEGRAL AD SCIENCE HOLDING CORP. (IAS)

Role
Chief Financial Officer
Signature
/s/ Yossi Almani, by Power of Attorney
Stock symbol
IAS
Transactions as of
Jan 3, 2025
Transactions value $
$0
Form type
4
Date filed
1/7/2025, 06:04 PM
Previous filing
Dec 10, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IAS Common Stock, $0.001 par value Options Exercise $0 +9.59K +4.24% $0.00 236K Jan 3, 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction IAS Market Stock Units Options Exercise $0 -9.59K -3.48% $0.00 266K Jan 3, 2025 Common Stock, $0.001 par value 9.59K Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Tania Secor is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id Content
F1 Represents shares of common stock earned upon the vesting of market stock units granted on April 3, 2023.
F2 The number of market stock units reported represents the maximum possible number of shares that are eligible for vesting, which is 225% of the number of shares that would be earned at target. The minimum payout factor that must be achieved to earn any payout is 60%. The actual number of shares that will vest on each vesting date will be determined by comparing the price of common stock on the applicable vesting date to the price of common stock on April 3, 2023 (i.e number of vested shares is equal to (i) the number of shares at target payout multiplied by (ii)(a) the average price of common stock for the 10 trading days immediately proceeding the applicable vesting date divided by (b) the closing stock price on April 3, 2023).
F3 The market stock units vest 25% on April 3, 2024 and in equal installments every three months thereafter over a three year period, subject to continued employment.