Anthony C. Lucia Jr. - Jun 29, 2021 Form 3 Insider Report for INTEGRAL AD SCIENCE HOLDING CORP. (IAS)

Signature
/s/ Micah Nessan, by Power of Attorney
Stock symbol
IAS
Transactions as of
Jun 29, 2021
Transactions value $
$0
Form type
3
Date filed
6/29/2021, 08:11 PM

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
holding IAS Option (Right to Buy) Jun 29, 2021 Common Stock, $0.001 par value 586K $4.13 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 These options were granted on April 1, 2019 and vest 25% after one year and in equal quarterly installments over the next three years.

Remarks:

Exhibit 24 - Power of Attorney