Tania Secor - 05 Dec 2022 Form 4 Insider Report for INTEGRAL AD SCIENCE HOLDING CORP. (IAS)

Role: Chief Financial Officer
Signature: /s/Anil Sukumaran, by Power of Attorney
Issuer symbol: IAS
Transactions as of: 05 Dec 2022
Net transactions value: $0
Form type: 4
Filing time: 06 Dec 2022, 15:29:57 UTC
Next filing: 18 Apr 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	IAS	Common Stock, $0.001 par value	Award	$0	+203,873		$0.000000	203,873	05 Dec 2022	Direct

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	Award	$0	+458,714		$0.000000	458,714	05 Dec 2022	Common Stock, $0.001 par value	458,714		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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 December 2, 2022 (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 December 2, 2022).
F2	The market stock units vest 25% on December 5, 2023 and in equal installments every three months thereafter over a three year period, subject to continued employment.

Content

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 December 2, 2022 (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 December 2, 2022).

The market stock units vest 25% on December 5, 2023 and in equal installments every three months thereafter over a three year period, subject to continued employment.