SEC Form SC 13G filed by Integral Ad Science Holding Corp.

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

Information Statement Pursuant to Rules 13d-1 and 13d-2
Under the Securities Exchange Act of 1934
(Amendment No.  )*

Integral ad science holding corp.
(Name of Issuer)

Check the appropriate box to designate the rule pursuant to which this schedule is filed:

¨ Rule 13d-1(b)

¨ Rule 13d-1(c)

x Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

The name of the issuer to which this filing on Schedule 13G relates is Integral Ad Science Holding Corp. (the “Company”).

The principal executive offices of the Company are located at 95 Morton St. 8th Floor, New York, NY 10014.

This Statement is being filed on behalf of Atlas Venture Fund VIII, L.P. ("Atlas VIII"), Atlas Venture Associates VIII, L.P. ("AVA VIII LP"), the sole general partner of Atlas VIII, and Atlas Venture Associates VIII, Inc. ("AVA VIII INC"), the sole general partner of AVA VIII LP.

The principal business address of each of Atlas VIII, AVA VIII LP, and AVA VIII INC is 56 Wareham Street, 3^rd Flr, Boston, MA 02118.

Each of Atlas VIII, AVA VIII LP and AVA VIII INC is organized under the laws of Delaware.

The class of equity securities of the Company to which this filing on Schedule 13G relates is Common Stock, par value $0.0001 (“Common Stock”).

The CUSIP number of the Company’s Common Stock is 45828L 108.

Item 4(a). Amount beneficially owned

As of the close of business on December 31, 2021, Atlas VIII is the record holder of 22,722,771 shares of Common Stock (the "Atlas VIII Shares"). AVA VIII LP is the sole general partner of Atlas VIII. AVA VIII INC is the sole general partner of AVA VIII LP. No person other than the respective owner referred to herein of the Atlas VIII Shares is known to have the right to receive or the power to direct the receipt of dividends from or the proceeds from the sale of such Atlas VIII Shares. Each of Atlas VIII, AVA VIII LP, and AVA VIII INC disclaim beneficial ownership of the Atlas VIII Shares except for such shares, if any, such person holds of record.

Item 4(b). Percent of Class

As of the close of business on December 31, 2021, Atlas VIII was the beneficial owner of 14.76% of the Common Stock, based on 153,940,553 shares outstanding as listed in the Company’s 10-Q filed on November 10, 2021.

Item 4(c). Number of shares as to which the person has:

(i)       Sole power to vote or direct the vote

(ii)      Shared power to vote or to direct the vote

(iii)     Sole power to dispose or to direct the disposition of

(iv)     Shared power to dispose or to direct the disposition of

Not Applicable.

Not Applicable.

Not Applicable.

Not Applicable. The Filing Persons expressly disclaim membership in a "group" as used in Rule 13d-5(b)(1).

Not Applicable.

Not Applicable. This statement on Schedule 13G is not filed pursuant to Rule 13d-1(b) or 13(d)-1(c).

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: February 7, 2022

Exhibit A

Joint Filing Agreement

The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing statements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him, her or it contained herein, but shall not be responsible for the completeness and accuracy of the information concerning the other entities or persons, except to the extent that he, she or it knows or has reason to believe that such information is inaccurate.

Dated: February 7, 2022