0000899243-21-026644.txt : 20210629 0000899243-21-026644.hdr.sgml : 20210629 20210629202309 ACCESSION NUMBER: 0000899243-21-026644 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20210629 FILED AS OF DATE: 20210629 DATE AS OF CHANGE: 20210629 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: BERKES OTTO CENTRAL INDEX KEY: 0001859782 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40557 FILM NUMBER: 211059915 MAIL ADDRESS: STREET 1: 95 MORTON STREET, FLOOR 8 CITY: NEW YORK STATE: NY ZIP: 10014 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: INTEGRAL AD SCIENCE HOLDING CORP. CENTRAL INDEX KEY: 0001842718 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370] IRS NUMBER: 830731995 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 95 MORTON ST. STREET 2: 8TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10014 BUSINESS PHONE: (646) 278-4871 MAIL ADDRESS: STREET 1: 95 MORTON ST. STREET 2: 8TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10014 FORMER COMPANY: FORMER CONFORMED NAME: INTEGRAL AD SCIENCE HOLDING LLC DATE OF NAME CHANGE: 20210301 FORMER COMPANY: FORMER CONFORMED NAME: KAVACHA TOPCO, LLC DATE OF NAME CHANGE: 20210127 3 1 doc3.xml FORM 3 SUBMISSION X0206 3 2021-06-29 0 0001842718 INTEGRAL AD SCIENCE HOLDING CORP. IAS 0001859782 BERKES OTTO C/O INTEGRAL AD SCIENCE HOLDING CORP. 95 MORTON STREET, 8TH FLOOR NEW YORK NY 10014 1 0 0 0 Common Stock, $0.001 par value 26931 D Exhibit 24 - Power of Attorney /s/ Micah Nessan, by Power of Attorney 2021-06-29 EX-24 2 attachment1.htm EX-24 DOCUMENT

                                   POWER OF ATTORNEY

                          FOR SECTION 16 REPORTING OBLIGATIONS

                                     June 29, 2021

KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and appoints
each of Lisa Utzschneider, Micah Nessan, Joseph Pergola, and Anil Sukumaran,
signing singly, the undersigned's true and lawful attorney-in-fact to: (i)
execute for and on behalf of the undersigned, in the undersigned's capacity as
an officer and/or director and/or owner of greater than 10% of the outstanding
common stock of Integral Ad Science Holding Corp., a Delaware corporation (the
"Company"), Forms 3, 4 and 5 (including any amendments, supplements or exhibits
thereto) in accordance with Section 16(a) of the Securities Exchange Act of 1934
and the rules thereunder; (ii) do and perform any and all acts for and on behalf
of the undersigned which may be necessary or desirable to complete and execute
any such Form 3, 4 or 5 (including any amendments, supplements or exhibits
thereto) and timely file such form with the United States Securities and
Exchange Commission (the "SEC") and any stock exchange or similar authority,
including without limitation the filing of a Form ID or any other documents
necessary or appropriate to enable the undersigned to file the Form 3, 4 and 5
electronically with the SEC; (iii) seek or obtain, as the undersigned's
representative and on the undersigned's behalf, information on transactions in
the Company's securities from any third party, including brokers, employee
benefit plan administrators and trustees, and the undersigned hereby authorizes
any such person to release any such information to each of the undersigned's
attorneys-in-fact appointed by this Power of Attorney and ratifies any such
release of information; and (iv) take any other action of any type whatsoever in
connection with the foregoing which, in the opinion of such attorney-in-fact,
may be of benefit to, in the best interest of, or legally required by, the
undersigned, it being understood that the documents executed by such attorney-
in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be
in such form and shall contain such terms and conditions as such attorney-in-
fact may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be
done by virtue of this power of attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of the date first written above.

                                        Signed and acknowledged:

					/s/ Otto Berkes
                                        ---------------------------------