VEP Group, LLC - Jun 29, 2021 Form 3 Insider Report for INTEGRAL AD SCIENCE HOLDING CORP. (IAS)

Role: 10%+ Owner
Signature: /s/ Robert F. Smith, Managing Member of the Senior Managing Member of the General Partner of VEP Group, LLC
Stock symbol: IAS
Transactions as of: Jun 29, 2021
Transactions value $: $0
Form type: 3
Date filed: 6/29/2021, 08:14 PM
Previous filing: Jul 1, 2021
Next filing: Jul 28, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	IAS	Common stock, $0.001 par value						94.4M	Jun 29, 2021	See Footnotes	F1, F2

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

Explanation of Responses:

Id	Content
F1	Includes 58,393,646 shares held directly by Vista Equity Partners Fund VI, L.P. ("VEPF VI"), 35,275,781 shares held directly by Vista Equity Partners Fund VI-A, L.P. ("VEPF VI-A"), and 710,573 shares held directly by VEPF VI FAF, L.P. ("FAF," and collectively with VEPF VI and VEPF VI-A, the "Vista Funds").
F2	Vista Equity Partners Fund VI GP, L.P. ("Fund VI GP") is the sole general partner of each of the Vista Funds. Fund VI GP's sole general partner is VEPF VI GP. Ltd. ("Fund VI UGP"). Robert F. Smith is the sole director and one of 11 members of Fund VI UGP. VEPF Management, L.P. ("Management Company") is the sole management company of each of the Vista Funds. The Management Company's sole general partner is VEP Group, LLC ("VEP Group"), and the Management Company's sole limited partner is Vista Equity Partners Management, LLC ("VEPM"). VEP Group is the Senior Managing Member of VEPM. Robert F. Smith is the sole Managing Member of VEP Group. Consequently, Mr. Smith, Fund VI GP, Fund VI UGP, the Management Company, VEPM and VEP Group may be deemed the beneficial owners of the shares held by the Vista Funds.

Content

Includes 58,393,646 shares held directly by Vista Equity Partners Fund VI, L.P. ("VEPF VI"), 35,275,781 shares held directly by Vista Equity Partners Fund VI-A, L.P. ("VEPF VI-A"), and 710,573 shares held directly by VEPF VI FAF, L.P. ("FAF," and collectively with VEPF VI and VEPF VI-A, the "Vista Funds").

Vista Equity Partners Fund VI GP, L.P. ("Fund VI GP") is the sole general partner of each of the Vista Funds. Fund VI GP's sole general partner is VEPF VI GP. Ltd. ("Fund VI UGP"). Robert F. Smith is the sole director and one of 11 members of Fund VI UGP. VEPF Management, L.P. ("Management Company") is the sole management company of each of the Vista Funds. The Management Company's sole general partner is VEP Group, LLC ("VEP Group"), and the Management Company's sole limited partner is Vista Equity Partners Management, LLC ("VEPM"). VEP Group is the Senior Managing Member of VEPM. Robert F. Smith is the sole Managing Member of VEP Group. Consequently, Mr. Smith, Fund VI GP, Fund VI UGP, the Management Company, VEPM and VEP Group may be deemed the beneficial owners of the shares held by the Vista Funds.

Remarks:

Exhibit 24 - Power of Attorney