IAS / Integral Ad Science Holding Corp. - SEC फाइलिंग, वार्षिक रिपोर्ट, प्रॉक्सी स्टेटमेंट

इंटीग्रल एड साइंस होल्डिंग कॉर्पोरेशन
US ˙ NasdaqGS ˙ US45828L1089

मूलभूत आँकड़े
CIK 1842718
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Integral Ad Science Holding Corp.
SEC Filings (Chronological Order)
यह पृष्ठ SEC फाइलिंग की एक पूरी, कालानुक्रमिक सूची प्रदान करता है, ओनरशिप फाइलिंग को छोड़कर, जो हम अन्यत्र प्रदान करते हैं।
August 7, 2025 EX-10.3

Restricted Stock Unit Award Agreement, dated as of August 6, 2025, by and between Integral Ad Science Holding Corp. and Alpana Wegner.

INTEGRAL AD SCIENCE HOLDING CORP. RSU AWARD NOTICE Pursuant to the terms and conditions of the Integral Ad Science Holding Corp. 2021 Omnibus Incentive Plan, as amended from time to time (the “Plan”), Integral Ad Science Holding Corp., a Delaware corporation (the “Company”), hereby grants to the individual listed below (“you” or the “Participant”) an award of RSUs set forth below. This award of RS

August 7, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIENCE H

August 7, 2025 EX-99.1

IAS Reports Second Quarter 2025 Financial Results Total revenue increased 16% to $149.2 million Net income increased to $16.4 million at an 11% margin; adjusted EBITDA increased to $51.6 million at a 35% margin Increases full year financial outlook o

IAS Reports Second Quarter 2025 Financial Results Total revenue increased 16% to $149.

August 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (D ate of earliest event reported): August 7, 2025 INTEGRAL AD SCIEN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (D ate of earliest event reported): August 7, 2025 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-40

June 18, 2025 EX-99.1

IAS Announces Completion of Expanded Credit Facility

IAS Announces Completion of Expanded Credit Facility NEW YORK – June 18, 2025 – Integral Ad Science (Nasdaq: IAS), a leading global media measurement and optimization platform, today announced that it has entered into a second amendment to its credit agreement (the “Credit Agreement Amendment”) with a syndicate of banks led by PNC Capital Markets LLC, as the joint lead arranger and administrative agent, and HSBC Bank USA, National Association and TD Bank, N.

June 18, 2025 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 17, 2025 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-40557 (Commission Fi

June 18, 2025 EX-10.1

Second Amendment to Credit Agreement, dated as of June 17, 2025, by and among Integral Ad Science, Inc., as borrower, Kavacha Holdings, Inc., as a guarantor, the other loan parties thereto, the lenders party thereto and PNC Bank, National Association, as administrative agent (including Annex A, which is a conformed copy of the Credit Agreement).

Exhibit 10.1 Execution Version SECOND AMENDMENT TO CREDIT AGREEMENT This SECOND AMENDMENT TO CREDIT AGREEMENT, dated as of June 17, 2025 (this “Amendment”), is made by and among Kavacha Holdings, Inc., a Delaware corporation (“Holdings”), Integral Ad Science, Inc., a Delaware corporation (the “Borrower”), the other Loan Parties party hereto, each of the Lenders, and PNC Bank, National Association,

June 3, 2025 EX-99.1

IAS Appoints Alpana Wegner as Chief Financial Officer

EX-99.1 Exhibit 99.1 IAS Appoints Alpana Wegner as Chief Financial Officer NEW YORK – June 3, 2025 – Integral Ad Science (Nasdaq: IAS), a leading global media measurement and optimization platform, announced today the appointment of Alpana Wegner as Chief Financial Officer (CFO), effective June 10, 2025. Wegner will lead the global finance team and report directly to Lisa Utzschneider, CEO of IAS.

June 3, 2025 EX-10.1

Employment Agreement by and between Integral Ad Science, Inc. and Alpana Wegner.

Exhibit 10.1 May 30, 2025 Alpana Wegner 253 River Oak Drive Mt. Pleasant, South Carolina 29464 Re: Employment with Integral Ad Science, Inc. Dear Alpana: This letter sets forth the terms of your employment by Integral Ad Science, Inc. (the “Company”). We value the role that you can serve with the Company. 1. You will be the Chief Financial Officer, reporting to the Chief Executive Officer. In this

June 3, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 2, 2025 INTEGRAL AD SCIENCE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 2, 2025 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation) (Com

May 12, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 12, 2025 INTEGRAL AD SCIENCE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 12, 2025 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-40557

May 12, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIENCE

May 12, 2025 EX-10.3

Agreement, dated as of May 7, 2025, by and between Integral Ad Science, Inc. and Lisa Utzschneider.

Exhibit 10.3 AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT This Amendment No. 1 (this “Amendment”) to the Employment Agreement (the “Original Employment Agreement”) dated December 3, 2018, by and between Integral Ad Science, Inc. (the “Company”) and Lisa Utzschneider (“Employee”) is made and entered as of May 7, 2025 (the “Amendment Effective Date”), by and between the Company and Employee. Capitalized

May 12, 2025 EX-99.1

IAS Reports First Quarter 2025 Financial Results Total revenue increased 17% to $134.1 million Net income of $8.0 million at a 6% margin; adjusted EBITDA of $41.5 million at a 31% margin Raises midpoint of full-year revenue and adjusted EBITDA outloo

IAS Reports First Quarter 2025 Financial Results Total revenue increased 17% to $134.

May 6, 2025 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2025 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-40557 (Commission File

March 28, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy St

February 28, 2025 EX-21.1

List of subsidiaries of the registrant.

Exhibit 21.1 Subsidiaries of Integral Ad Science Holding Corp. Company Name Jurisdiction of Formation Subsidiaries included in consolidated financial statements* Integral Ad Science, Inc. Delaware Publica LLC Delaware *Twenty nine subsidiaries, whose names are omitted, considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary.

February 28, 2025 EX-19.1

Integral Ad Science Holding Corp. Insider Trading Policy, dated as of February 11, 2025.

Exhibit 19.1 Effective as of February 11, 2025 INTEGRAL AD SCIENCE HOLDING CORP. INSIDER TRADING POLICY PURPOSE This Insider Trading Policy (the “Policy”) provides guidelines with respect to transactions in the securities of Integral Ad Science Holding Corp. (the “Company”) and the handling of confidential information about the Company and the companies with which the Company does business. The Co

February 28, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2025 INTEGRAL AD SCI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2025 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-

February 28, 2025 EX-10.18

Letter Agreement, dated as of February 25, 2025, by and between Integral Ad Science, Inc. and Alex Gil.

Exhibit 10.18 February 25, 2025 Alex Gil ****@***********.com Dear Alex As per our discussion, Integral Ad Science (“the Company”) will amend the terms of your employment letter dated October 22, 2023, with this enhanced severance agreement. In return, you will agree to give no less than six (6) weeks' notice if you voluntarily resign from your position at the Company. If the Company terminates yo

February 28, 2025 EX-4.1

Description of the Company's capital stock.

Exhibit 4.1 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES AND EXCHANGE ACT OF 1934 Integral Ad Science Holding Corp. (the “Company,” “we,” “us,” or “our”) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), our common stock, par value $0.001 per share (“common stock”). The

February 28, 2025 EX-99.1

IAS Reports Fourth Quarter and Full Year 2024 Financial Results Fourth quarter revenue increased 14% to $153 million Fourth quarter net income of $15.3 million at a 10% margin; fourth quarter adjusted EBITDA increased 29% to $61.4 million at a 40% ma

IAS Reports Fourth Quarter and Full Year 2024 Financial Results Fourth quarter revenue increased 14% to $153 million Fourth quarter net income of $15.

February 28, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIENCE HOLDI

February 3, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): January 30, 2025 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-4

February 3, 2025 EX-10.1

Separation Agreement and Release of Claims, dated as of January 30, 2025, by and between Integral Ad Science, Inc. and Tania Secor.

Exhibit 10.1 January 30, 2025 CONFIDENTIAL SEPARATION AGREEMENT AND RELEASE OF CLAIMS This CONFIDENTIAL SEPARATION AGREEMENT AND RELEASE OF CLAIMS (this “Agreement”) is made, as of the Effective Date (as defined herein), by and between Tania Secor (“Employee”) and Integral Ad Science, Inc. (the “Company”). Employee and the Company are referred to herein individually as a “Party” and collectively a

January 3, 2025 EX-10.1

Consulting Agreement, dated as of January 3, 2025, by and between Integral Ad Science Holding Corp. and Jill Putman.

Exhibit 10.1 Jill Putman 898 Oak Court Eagan, MN 55123 January 3, 2025 Dear Jill, This letter agreement (this “Agreement”), dated as of January 3, 2025 (the “Effective Date”), sets forth the terms and conditions whereby Jill Putman (“You” or “Your”) agrees to provide the services described below to Integral Ad Science Holding, Corp., a Delaware corporation (the “Company”). 1. Services. 1.1 The Com

January 3, 2025 EX-99.1

IAS Announces CFO Transition Jill Putman Appointed Interim CFO Reiterates Fourth Quarter and Full Year 2024 Outlook

Exhibit 99.1 IAS Announces CFO Transition Jill Putman Appointed Interim CFO Reiterates Fourth Quarter and Full Year 2024 Outlook NEW YORK – January 3, 2025 – Integral Ad Science (Nasdaq: IAS), a leading global media measurement and optimization platform, today announced the departure of Tania Secor as Chief Financial Officer (CFO) and the appointment of Jill Putman as Interim CFO, effective immedi

January 3, 2025 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (date of earliest event reported): January 2, 2025 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation) (

November 14, 2024 SC 13G/A

IAS / Integral Ad Science Holding Corp. / Vista Equity Partners Fund VI, L.P. - SC 13G/A Passive Investment

SC 13G/A 1 d825811dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 2)* Integral Ad Science Holding Corp. (Name of Issuer) Common Stock, $0.001 par value per share (Title of Class of Securities) 45828L 108 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this

November 13, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 13, 2024 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-

November 12, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIE

November 12, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 12, 2024 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-

November 12, 2024 EX-99.1

IAS Reports Third Quarter 2024 Financial Results Total revenue increased 11% to $133.5 million Net income of $16.1 million at a 12% margin; adjusted EBITDA increased to $50.6 million at a 38% margin

IAS Reports Third Quarter 2024 Financial Results Total revenue increased 11% to $133.

August 2, 2024 EX-99.1

IAS Appoints Industry Leader Bob Lord to its Board of Directors

IAS Appoints Industry Leader Bob Lord to its Board of Directors NEW YORK – August 2, 2024 – Integral Ad Science (Nasdaq: IAS), a leading global media measurement and optimization platform, today announced the appointment of Bob Lord to its Board of Directors effective immediately.

August 2, 2024 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): July 31, 2024 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-4055

August 1, 2024 EX-99.1

IAS Reports Second Quarter 2024 Financial Results Total revenue increased 14% to $129.0 million Net income of $7.7 million at a 6% margin; adjusted EBITDA increased to $46.2 million at a 36% margin Raises full year financial guidance on positive seco

IAS Reports Second Quarter 2024 Financial Results Total revenue increased 14% to $129.

August 1, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 1, 2024 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-405

August 1, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIENCE H

May 9, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIENCE

May 9, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 7, 2024 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation) (Comm

May 9, 2024 EX-99.1

IAS Reports First Quarter 2024 Financial Results Total revenue increased 8% to $114.5 million Net loss of $1.3 million at a 1% net loss margin; adjusted EBITDA of $33.1 million at a 29% margin Introduces positive second quarter outlook and raises ful

IAS Reports First Quarter 2024 Financial Results Total revenue increased 8% to $114.

May 9, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 9, 2024 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-40557 (Commission File

April 3, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ D

February 27, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIENCE HOLDI

February 27, 2024 EX-10.20

, by and between Integral Ad Science, Inc. and

Exhibit 10.20 10/22/2023 Alex Gil **********@******.com Dear Alex, On behalf or Integral Ad Science, Inc. I am pleased to offer you the opportunity to join our company. We are extremely excited about the prospect or having you on the team and look forward to working with you to make IAS a great success. If you accept this offer or employment, your title will be Chief Accounting Officer in our New

February 27, 2024 EX-21.1

List of subsidiaries of the registrant.

Exhibit 21.1 Subsidiaries of Integral Ad Science Holding Corp. Company Name Jurisdiction of Formation Subsidiaries included in consolidated financial statements* Integral Ad Science UK, Limited UK Integral Ad Science, Inc. Delaware Publica LLC Delaware *Twenty eight subsidiaries, whose names are omitted, considered in the aggregate as a single subsidiary, would not constitute a significant subsidi

February 27, 2024 EX-97.1

Clawback Policy dated as of December 1, 2023.

Exhibit 97.1 INTEGRAL AD SCIENCE HOLDING CORP. CLAWBACK POLICY The Compensation and Nominating Committee of the Board of Directors (the “Committee”) of Integral Ad Science Holding Corp. (the “Company”) has adopted this Clawback Policy (this “Policy”) in accordance with Section 10D of the Securities Exchange Act of 1934, as amended, the rules promulgated thereunder, and the applicable provisions of

February 27, 2024 EX-99.1

IAS Reports Fourth Quarter and Full Year 2023 Financial Results Fourth quarter revenue increased 14% to $134.3 million Fourth quarter net income of $10.2 million at an 8% margin; fourth quarter adjusted EBITDA increased 19% to $47.5 million at a 35%

IAS Reports Fourth Quarter and Full Year 2023 Financial Results Fourth quarter revenue increased 14% to $134.

February 27, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 27, 2024 INTEGRAL AD SCI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 27, 2024 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-

February 27, 2024 EX-10.14

Separation Agreement and Release of Claims, dated as of July 31, 2023, by and between Kshitij Sharma and Integral Ad Science, Inc.

Exhibit 10.14 July 31, 2023 CONFIDENTIAL SEPARATION AGREEMENT AND RELEASE OF CLAIMS This CONFIDENTIAL SEPARATION AGREEMENT AND RELEASE OF CLAIMS (this “Agreement”) is made, as of the Effective Date (as defined herein), by and between Kshitij Sharma (“Employee”) and Integral Ad Science, Inc. (the “Company”). Employee and the Company are referred to herein individually as a “Party” and collectively

February 13, 2024 SC 13G/A

IAS / Integral Ad Science Holding Corp. / Vista Equity Partners Fund VI, L.P. - SC 13G/A Passive Investment

SC 13G/A 1 d766706dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1)* Integral Ad Science Holding Corp. (Name of Issuer) Common Stock, $0.001 par value per share (Title of Class of Securities) 45828L 108 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this S

February 13, 2024 SC 13G

IAS / Integral Ad Science Holding Corp. / VANGUARD GROUP INC - SCHEDULE 13G Passive Investment

SC 13G 1 tv01201-integraladsciencehol.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 Name of issuer: Integral Ad Science Holding Corp Title of Class of Securities: Common Stock CUSIP Number: 45828L108 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the

December 7, 2023 EX-1.1

Underwriting Agreement, dated December 4, 2023, by and among Integral Ad Science Holding Corp., the selling shareholders named therein and Goldman Sachs & Co. LLC.

Exhibit 1.1 11,000,000 Shares INTEGRAL AD SCIENCE HOLDING CORP. COMMON STOCK (PAR VALUE $0.001 PER SHARE) UNDERWRITING AGREEMENT December 4, 2023 December 4, 2023 Goldman Sachs & Co. LLC c/o Goldman Sachs & Co. LLC 200 West Street New York, New York 10282 Ladies and Gentlemen: The shareholders named in Schedule I hereto (the “Selling Shareholders”) of Integral Ad Science Holding Corp., a Delaware

December 7, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 4, 2023 INTEGRAL AD SCIE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 4, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation o

December 7, 2023 EX-99.1

Information Relating to Part II.

EX-99.1 Exhibit 99.1 Information Relating to Part II. Item 14. Other Expenses of Issuance and Distribution The expenses in connection with the offer and sale of shares of common stock of Integral Ad Science Holding Corp., registered pursuant to the automatic shelf Registration Statement on Form S-3ASR (Registration No. 333-271763) filed on May 9, 2023, are set forth in the following table. All amo

December 6, 2023 424B4

11,000,000 Shares Integral Ad Science Holding Corp. Common Stock Offered by the Selling Stockholders

Table of Contents Filed Pursuant to Rule 424(b)(4) Registration No. 333-271763 PROSPECTUS SUPPLEMENT (To Prospectus dated May 9, 2023) 11,000,000 Shares Integral Ad Science Holding Corp. Common Stock Offered by the Selling Stockholders The selling stockholders identified in this prospectus supplement (the “selling stockholders”) are offering 11,000,000 shares of common stock, par value $0.001 per

December 6, 2023 EX-FILING FEES

Calculation of Filing Fee Table (Form Type) Integral Ad Science Holding Corp. (Exact Name of Registrant as Specified in its Charter) Table 1 – Newly Registered Securities and Carry Forward Securities Security Type Security Class Title Fee Calculation

EX-FILING FEES Exhibit 107 Calculation of Filing Fee Table 424(b)(4) (Form Type) Integral Ad Science Holding Corp.

December 5, 2023 FWP

Integral Ad Science Announces Pricing of Secondary Offering of Common Stock by Selling Stockholders

Issuer Free Writing Prospectus Filed pursuant to Rule 433 Registration Statement No.

December 4, 2023 FWP

Integral Ad Science Announces Launch of Secondary Offering of Common Stock by Selling Stockholders

Issuer Free Writing Prospectus Filed pursuant to Rule 433 Registration Statement No.

November 15, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 15, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-

November 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIE

November 2, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 2, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-4

November 2, 2023 EX-99.1

IAS Reports Third Quarter 2023 Financial Results Total revenue increased 19% to $120.3 million Net loss of $13.7 million, or $0.09 per share, at an 11% margin; adjusted EBITDA increased to $40.6 million at a 34% margin Increases full year financial o

IAS Reports Third Quarter 2023 Financial Results Total revenue increased 19% to $120.

August 8, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 8, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-405

August 8, 2023 EX-99.1

IAS Announces Exclusive, First to Market Partnership with X to Provide Pre-Bid Brand Safety and Suitability Brand Safety & Suitability Optimization controls to provide advertisers with greater confidence across X

IAS Announces Exclusive, First to Market Partnership with X to Provide Pre-Bid Brand Safety and Suitability Brand Safety & Suitability Optimization controls to provide advertisers with greater confidence across X New York, NY – August 8, 2023- Integral Ad Science (Nasdaq: IAS), a leading global media measurement and optimization platform, today announced an exclusive partnership with X to provide advertisers with its industry-leading pre-bid Brand Safety and Suitability product across the social media platform.

August 3, 2023 EX-99.1

IAS Reports Second Quarter 2023 Financial Results Total revenue increased 13% to $113.7 million Net income of $7.7 million, or $0.05 per share, at a 7% margin; adjusted EBITDA increased to $37.4 million at a 33% margin

IAS Reports Second Quarter 2023 Financial Results Total revenue increased 13% to $113.

August 3, 2023 EX-10.1

, as a guarantor, the other loan parties thereto, the lenders party thereto and PNC Bank, National Association, as administrative agent (incorporated by reference to Exhibit 10.1 to the Com

Exhibit 10.1 Execution Version FIRST AMENDMENT TO CREDIT AGREEMENT This FIRST AMENDMENT TO CREDIT AGREEMENT, dated as of June 23, 2023 (this “Amendment”), is made by and among Kavacha Holdings, Inc., a Delaware corporation (“Holdings”), Integral Ad Science, Inc., a Delaware corporation (the “Borrower”), the other Loan Parties party hereto, each of the Lenders, and PNC Bank, National Association, a

August 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIENCE H

August 3, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 3, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-405

June 13, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 13, 2023 INTEGRAL AD SCIENCE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 13, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-4055

June 1, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 1, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-40557

May 31, 2023 S-8

As filed with the Securities and Exchange Commission on May 31, 2023

As filed with the Securities and Exchange Commission on May 31, 2023 Registration No.

May 31, 2023 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Table Form S-8 (Form Type) Integral Ad Science Holding Corp.

May 12, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 9, 2023 INTEGRAL AD SCIENCE H

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 9, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation or org

May 12, 2023 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 11, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation or or

May 12, 2023 EX-99.1

Information Relating to Part II.

EX-99.1 Exhibit 99.1 Information Relating to Part II. Item 14. Other Expenses of Issuance and Distribution The expenses in connection with the offer and sale of shares of common stock of Integral Ad Science Holding Corp., registered pursuant to the automatic shelf Registration Statement on Form S-3ASR (Registration No. 333-271763) filed on May 9, 2023, are set forth in the following table. All amo

May 12, 2023 EX-1.1

Underwriting Agreement, dated May 9, 2023, by and among Integral Ad Science Holding Corp., the selling shareholders named therein and Morgan Stanley & Co. LLC and Jefferies LLC, as representatives to the several underwriters named therein.

Exhibit 1.1 Execution Version 10,000,000 Shares INTEGRAL AD SCIENCE HOLDING CORP. COMMON STOCK (PAR VALUE $0.001 PER SHARE) UNDERWRITING AGREEMENT May 9, 2023 May 9, 2023 Morgan Stanley & Co. LLC Jefferies LLC c/o Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 c/o Jefferies LLC 520 Madison Avenue New York, NY 10022 Ladies and Gentlemen: The shareholders named in Schedule I hereto

May 11, 2023 424B4

10,000,000 Shares Integral Ad Science Holding Corp. Common Stock Offered by the Selling Stockholders

424B4 Table of Contents Filed Pursuant to Rule 424(b)(4) Registration No. 333-271763 PROSPECTUS SUPPLEMENT (To Prospectus dated May 9, 2023) 10,000,000 Shares Integral Ad Science Holding Corp. Common Stock Offered by the Selling Stockholders The selling stockholders identified in this prospectus supplement (the “selling stockholders”) are offering 10,000,000 shares of common stock, par value $0.00

May 11, 2023 EX-FILING FEES

Calculation of Filing Fee Table (Form Type) Integral Ad Science Holding Corp. (Exact Name of Registrant as Specified in its Charter) Table 1 – Newly Registered Securities and Carry Forward Securities Security Type Security Class Title Fee Calculation

EX-FILING FEES Exhibit 107 Calculation of Filing Fee Table 424(b)(4) (Form Type) Integral Ad Science Holding Corp.

May 10, 2023 FWP

Integral Ad Science Announces Pricing of Secondary Offering of Common Stock by Selling Stockholders

FWP 1 d427288dfwp.htm FWP2 Issuer Free Writing Prospectus Filed pursuant to Rule 433 Registration Statement No. 333-271763 May 9, 2023 Integral Ad Science Announces Pricing of Secondary Offering of Common Stock by Selling Stockholders NEW YORK, NY – May 9, 2023 – Integral Ad Science Holding Corp. (Nasdaq: IAS), a global leader in digital media quality, today announced the pricing of an underwritte

May 9, 2023 S-3ASR

As filed with the Securities and Exchange Commission on May 9, 2023

Table of Contents As filed with the Securities and Exchange Commission on May 9, 2023 No.

May 9, 2023 EX-FILING FEES

Calculation of Registration Fee.

EX-FILING FEES Exhibit 107 Calculation of Filing Fee Table Form S-3ASR (Form Type) Integral Ad Science Holding Corp.

May 9, 2023 FWP

Integral Ad Science Announces Launch of Proposed Secondary Offering of Common Stock by Selling Stockholders

FWP1 Issuer Free Writing Prospectus Filed pursuant to Rule 433 Registration Statement No.

May 4, 2023 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REP

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRA

May 4, 2023 EX-99.1

IAS Reports First Quarter 2023 Financial Results Total revenue increased 19% to $106.1 million Net income increased to $3.1 million, or $0.02 per share, at a 3% margin; adjusted EBITDA increased to $34.1 million at a 32% margin Increases full year fi

IAS Reports First Quarter 2023 Financial Results Total revenue increased 19% to $106.

May 4, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 4, 2023 INTEGRAL AD SCIENCE H

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 4, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-40557

May 4, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIENCE

May 4, 2023 CORRESP

May 4, 2023

May 4, 2023 VIA EDGAR SUBMISSION United States Securities and Exchange Commission Division of Corporation Finance Office of Technology 100 F Street, N.

April 10, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ D

April 3, 2023 EX-10.1

Separation Agreement and Release of Claims, dated as of March 29, 2023, by and between Oleg Bershadsky and Integral Ad Science, Inc.

Exhibit 10.1 CONFIDENTIAL SEPARATION AGREEMENT AND RELEASE OF CLAIMS This CONFIDENTIAL SEPARATION AGREEMENT AND RELEASE OF CLAIMS (this “Agreement”) is made, as of the Effective Date (as defined herein), by and between Oleg Bershadsky (“Employee”) and Integral Ad Science, Inc. (the “Company”). Employee and the Company are referred to herein individually as a “Party” and collectively as the “Partie

April 3, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 29, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-405

March 10, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 10, 2023 INTEGRAL AD SCIENC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 10, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-405

March 2, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 2, 2023 INTEGRAL AD SCIENCE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 2, 2023 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-4055

March 2, 2023 EX-21.1

List of subsidiaries of the registrant.

Exhibit 21.1 Subsidiaries of Integral Ad Science Holding Corp. Company Name Jurisdiction of Formation Subsidiaries included in consolidated financial statements* Integral Ad Science UK, Limited UK Integral Ad Science, Inc. Delaware Publica LLC Delaware *Twenty eight subsidiaries, whose names are omitted, considered in the aggregate as a single subsidiary, would not constitute a significant subsidi

March 2, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIENCE HOLDI

March 2, 2023 EX-99.1

IAS Reports Fourth Quarter and Full Year 2022 Financial Results Fourth quarter revenue increased 15% to $117.4 million Fourth quarter net income increased to $11.5 million at a 10% margin; fourth quarter adjusted EBITDA increased 20% to $40.0 million

IAS Reports Fourth Quarter and Full Year 2022 Financial Results Fourth quarter revenue increased 15% to $117.

February 10, 2023 SC 13G/A

IAS / Integral Ad Science Holding Corp. / SAPPHIRE VENTURES, L.L.C. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

January 31, 2023 SC 13G/A

IAS / Integral Ad Science Holding Corp. / Atlas Venture Fund VIII, L.P. - SC 13G/A Passive Investment

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. 1 )* INTEGRAL AD SCIENCE HOLDING CORP. (Name of Issuer) Common Stock, $0.0001 (Title of Class of Securities) 45828L 108 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Fili

December 7, 2022 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 7, 2022 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-4

November 10, 2022 EX-10.2

Amendment No. 1 to Employment Agreement, dated as of October 21, 2022, by and between Integral Ad Science, Inc. and Tania Secor (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q, filed with the Commission on November 10, 2022).

Exhibit 10.2 AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT This Amendment No. l (this "Amendment") to the Employment Agreement (the "Original Employment Agreement") dated September 11, 2022 by and between Integral Ad Science, Inc. (the "Company") and Tania Secor ("Employee"), is made and entered into as of October 21, 2022, by and between the Company and the Employee. Capitalized terms used but not defi

November 10, 2022 EX-10.1

Employment Agreement dated as of September 11, 2022, by and between Integral Ad Science, Inc. and Tania Secor (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q, filed with the Commission on November 10, 2022).

Exhibit 10.1 September 11, 2022 Tania Secor ***@gmail.com Re: Employment with Integral Ad Science, Inc. Dear Tania This letter sets forth the terms of your employment by Integral Ad Science, Inc. (the ?Company?). We value the role that you can serve with the Company. 1. You will be the Chief Financial Officer (?CFO?), reporting to the Chief Executive Officer. In this capacity, you will have the re

November 10, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIE

November 10, 2022 EX-99.1

IAS Reports Third Quarter 2022 Financial Results Total revenue increased 28% to $101.3 million Net income increased to $0.8 million at a 1% margin; adjusted EBITDA increased to $30.1 million at a 30% margin

IAS Reports Third Quarter 2022 Financial Results Total revenue increased 28% to $101.

November 10, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 10, 2022 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-

August 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ☐ TRANSITION REPORT PURSUANT T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIENCE H

August 4, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 4, 2022 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-405

August 4, 2022 EX-99.1

IAS Reports Second Quarter 2022 Financial Results Total revenue increased 34% to $100.3 million; programmatic revenue increased 51% Net income of $2.0 million, or $0.01 per share at a 2% margin; adjusted EBITDA increased to $31.6 million at a 31% mar

IAS Reports Second Quarter 2022 Financial Results Total revenue increased 34% to $100.

August 4, 2022 EX-10.2

Amendment No. One to the Integral Ad Science Holding Corp. 2021 Employee Stock Purchase Plan, effective as of August 1, 2022 (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q, filed with the Commission on August 4, 2022)

Exhibit 10.2 AMENDMENT NUMBER ONE TO THE INTEGRAL AD SCIENCE HOLDING CORP. 2021 EMPLOYEE STOCK PURCHASE PLAN (EFFECTIVE AUGUST 1, 2022) 1.Section 2.12 of the Integral Ad Science Holding Corp. 2021 Employee Stock Purchase Plan (the ?ESPP?) is amended and restated in its entirety to read as follows: 2.12 ?Eligible Employee? means any Employee of the Company or a Designated Company. The Administrator

May 26, 2022 EX-10.1

Separation Agreement and Release of Claims, dated as of May 25, 2022, by and between Joseph Pergola and Integral Ad Science, Inc.

Exhibit 10.1 May 25, 2022 SEPARATION AGREEMENT AND RELEASE OF CLAIMS This SEPARATION AGREEMENT AND RELEASE OF CLAIMS (this ?Agreement?) is made, as of the Effective Date (as defined herein), by and between Joseph Pergola (?Employee?) and Integral Ad Science, Inc. (the ?Company?). Employee and the Company are referred to herein individually as a ?Party? and collectively as the ?Parties.? WHEREAS, E

May 26, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 25, 2022 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation) (Com

May 25, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 24, 2022 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation or or

May 11, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIENCE

May 11, 2022 EX-99.1

IAS Reports First Quarter 2022 Financial Results Total revenue increased 33% to $89.2 million; programmatic revenue increased 53% Net income of $1.2 million, or $0.01 per share; adjusted EBITDA increased to $24.8 million at a 28% margin Announces CFO

IAS Reports First Quarter 2022 Financial Results Total revenue increased 33% to $89.

May 11, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 11, 2022 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-40557

April 18, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? ? ? Filed by a Party other than the Registrant ?? Check the appropriate box: ? ? ? ? Preliminary Proxy Statement ? ? ? ? Confidential, for Use of the Commission Only (as permitted by Rule 14

April 8, 2022 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? ? ? Filed by a Party other than the Registrant ?? Check the appropriate box: ? ? ? Preliminary Proxy Statement ?? ? ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6

March 31, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 31, 2022 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-405

March 3, 2022 EX-99.1

IAS Reports Fourth Quarter and Full Year 2021 Financial Results Total revenue increased 31% to $102.5 million in the fourth quarter; introduces positive financial outlook for 2022

IAS Reports Fourth Quarter and Full Year 2021 Financial Results Total revenue increased 31% to $102.

March 3, 2022 EX-4.1

Exhibit 4.1

Exhibit 4.1 DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES AND EXCHANGE ACT OF 1934 Integral Ad Science Holding Corp. (the ?Company,? ?we,? ?us,? or ?our?) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the ?Exchange Act?), its common stock, par value $0.001 per share (?common stock?). The

March 3, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIENCE HOLDI

March 3, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 3, 2022 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-4055

March 3, 2022 EX-21.1

List of subsidiaries of the registrant.

Exhibit 21.1 Subsidiaries of Integral Ad Science Holding Corp. Company Name Jurisdiction of Formation Subsidiaries included in consolidated financial statements* Admantx S.p.A. Italy Integral Ad Science UK, Limited UK Integral Ad Science, Inc. Delaware Publica LLC Delaware *Twenty three subsidiaries, whose names are omitted, considered in the aggregate as a single subsidiary, would not constitute

February 11, 2022 SC 13G

IAS / Integral Ad Science Holding Corp. / SAPPHIRE VENTURES, L.L.C. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

February 8, 2022 SC 13G

IAS / Integral Ad Science Holding Corp. / Vista Equity Partners Fund VI, L.P. - SC 13G Passive Investment

SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )* Integral Ad Science Holding Corp. (Name of Issuer) Common Stock, par value $0.001 per share. (Title of Class of Securities) 45828L 108 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the Appropriate Bo

February 8, 2022 EX-99.A

JOINT FILING AGREEMENT

EXHIBIT A JOINT FILING AGREEMENT This will confirm the agreement by and among the undersigned that the Schedule 13G filed with the Securities and Exchange Commission on or about the date hereof with respect to the beneficial ownership by the undersigned of the shares of Common Stock, par value $0.

February 7, 2022 SC 13G

IAS / Integral Ad Science Holding Corp. / Atlas Venture Fund VIII, L.P. - SC 13G Passive Investment

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) Common Stock, $0.0001 (Title of Class of Securities) 45828L 108 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing

November 12, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 12, 2021 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-

November 10, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INTEGRAL AD SCIE

November 10, 2021 EX-99.1

Integral Ad Science Reports Third Quarter 2021 Financial Results Total revenue increased 32% year-over-year to $79.0 million; programmatic revenue increased 49% to $33.7 million driven by contextual targeting adoption Strong business momentum; increa

Integral Ad Science Reports Third Quarter 2021 Financial Results Total revenue increased 32% year-over-year to $79.

November 10, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 10, 2021 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-

September 29, 2021 EX-10.1

Credit Agreement, dated as of September 29, 2021, by and among Integral Ad Science, Inc., as borrower, Kavacha Holdings, Inc., as a guarantor, the other loan parties thereto, the lenders party thereto and PNC Bank, National Association, as administrative agent.

Exhibit 10.1 Execution Version CREDIT AGREEMENT dated as of September 29, 2021 among KAVACHA HOLDINGS, INC., as Holdings, INTEGRAL AD SCIENCE, INC., as Borrower, The other Loan Parties Party Hereto, The Lenders Party Hereto and PNC BANK, NATIONAL ASSOCIATION, as Administrative Agent PNC BANK, NATIONAL ASSOCIATION and FIFTH THIRD BANK, NATIONAL ASSOCIATION, as Joint Lead Arrangers and Joint Bookrun

September 29, 2021 8-K

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 29, 2021 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation

September 17, 2021 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 17, 2021 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation

August 12, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 12, 2021 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation) (

August 12, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ☐ TRANSITION REPORT PURSUANT T

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40557 INT

August 12, 2021 EX-10.3

Integral Ad Science Holding Corp. 2021 Omnibus Incentive Plan

Exhibit 10.3 INTEGRAL AD SCIENCE HOLDING CORP. 2021 OMNIBUS INCENTIVE PLAN ARTICLE I PURPOSE; EFFECTIVE DATE; TERM Section 1.1 Purpose. The purpose of the Integral Ad Science Holding Corp. 2021 Omnibus Incentive Plan is to enhance the profitability and value of the Company for the benefit of its Stockholders by enabling the Company to offer Eligible Individuals stock- and cash-based incentives in

August 12, 2021 EX-99.1

Integral Ad Science Reports Second Quarter 2021 Financial Results Total revenue increased 55% year-over-year to $75.1 million; programmatic revenue increased 94% to $31.8 million

Exhibit 99.1 Integral Ad Science Reports Second Quarter 2021 Financial Results Total revenue increased 55% year-over-year to $75.1 million; programmatic revenue increased 94% to $31.8 million NEW YORK ? August 12, 2021 ? Integral Ad Science Holding Corp. (?IAS?) (Nasdaq: IAS), a global leader in digital media quality, today announced financial results for the second quarter ended June 30, 2021. ?I

August 10, 2021 EX-99.1

Integral Ad Science Acquires Connected TV Advertising Leader Publica Accelerates Next Evolution of Its Publisher Business and Plans to Build Global Addressable CTV Ad Platform

Exhibit 99.1 Integral Ad Science Acquires Connected TV Advertising Leader Publica Accelerates Next Evolution of Its Publisher Business and Plans to Build Global Addressable CTV Ad Platform NEW YORK ? AUGUST 10, 2021 ? Integral Ad Science (Nasdaq: IAS), a global leader in digital media quality, today announced that it has acquired Publica, the connected TV (CTV) advertising platform, in a cash and

August 10, 2021 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 9, 2021 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation) (C

August 10, 2021 EX-2.1

Securities Purchase Agreement, dated August 9, 2021, by and among Integral Ad Science, Inc., Publica LLC, Publica Investors LLC, NBIC Finance Sarl, Alpine Road Investors LLC and certain individuals thereto.

Exhibit 2.1 Execution SECURITIES PURCHASE AGREEMENT BY AND AMONG PUBLICA LLC, PUBLICA INVESTORS LLC, ALPINE ROAD INVESTORS LLC, THE MEMBERS OF EACH OF THE COMPANIES LISTED ON THE SIGNATURE PAGES HERETO, INTEGRAL AD SCIENCE, INC., AND SHAREHOLDER REPRESENTATIVE SERVICES LLC, SOLELY IN ITS CAPACITY AS THE SELLERS? REPRESENTATIVE DATED AS OF AUGUST 9, 2021 TABLE OF CONTENTS Page Section 1. Purchase a

July 2, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 29, 2021 INTEGRAL AD SCIENCE HOLDING CORP. (Exact name of registrant as specified in its charter) Delaware 001-40557 83-0731995 (State or other jurisdiction of incorporation) (Co

July 2, 2021 EX-3.2

Bylaws of Integral Ad Science Holding Corp., dated June 29, 2021.

Exhibit 3.2 BYLAWS OF INTEGRAL AD SCIENCE HOLDING CORP. A Delaware corporation (Adopted as of June 29, 2021) ARTICLE I OFFICES Section 1. Offices. Integral Ad Science Holding Corp. (the ?Corporation?) may have an office or offices other than its registered office at such place or places, either within or outside the State of Delaware, as the Board of Directors of the Corporation (the ?Board of Dir

July 2, 2021 EX-3.1

Certificate of Incorporation of Integral Ad Science Holding Corp., dated June 29, 2021 (incorporated by reference to Exhibit 3.1 to the Company’s Form 8-K filed on July 2, 2021).

Exhibit 3.1 CERTIFICATE OF CONVERSION FROM A DOMESTIC LIMITED LIABILITY COMPANY TO A DOMESTIC CORPORATION * * * * * * * * * * In accordance with the provisions of Section 265 of the General Corporation Law of the State of Delaware * * * * * * * * * * The undersigned, being duly authorized to execute and file this Certificate of Conversion from a domestic limited liability company to a domestic cor

July 2, 2021 EX-99.1

Integral Ad Science Announces Pricing of Initial Public Offering

Exhibit 99.1 Integral Ad Science Announces Pricing of Initial Public Offering NEW YORK, June 29, 2021 ? Integral Ad Science (?IAS?), a global leader in digital media quality, today announced the pricing of its initial public offering of 15,000,000 shares of common stock at a price of $18 per share. The underwriters have a 30-day option to purchase up to an additional 2,250,000 shares of common sto

July 2, 2021 EX-10.1

Director Nomination Agreement, dated as of July 2, 2021, by and among the Company and the other signatories party thereto.

Exhibit 10.1 DIRECTOR NOMINATION AGREEMENT THIS DIRECTOR NOMINATION AGREEMENT (this ?Agreement?) is made and entered into as of July 2, 2021, by and among Integral Ad Science Holding Corp., a Delaware corporation (the ?Company?), Vista Equity Partners Fund VI, L.P., Vista Equity Partners Fund VI-A, L.P., VEPF VI FAF, L.P., Vista Equity Partners Fund VI GP, L.P., VEPF VI GP, Ltd., and VEP Group, LL

July 2, 2021 EX-1.1

Underwriting Agreement, among Integral Ad Science Holding Corp. and Morgan Stanley & Co. LLC, Jefferies LLC, Barclays Capital Inc., and Evercore Group L.L.C., as representatives for the underwriters named therein.

Exhibit 1.1 15,000,000 Shares INTEGRAL AD SCIENCE HOLDING CORP. COMMON STOCK (PAR VALUE $0.001 PER SHARE) UNDERWRITING AGREEMENT June 29, 2021 June 29, 2021 Morgan Stanley & Co. LLC Jefferies LLC Barclays Capital Inc. Evercore Group L.L.C. c/o Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 c/o Jefferies LLC 520 Madison Avenue New York, NY 10022 c/o Barclays Capital Inc. 745 Sevent

July 2, 2021 EX-4.1

Registration Rights Agreement, dated as of July 2, 2021, by among the Company and the other signatories party thereto.

Exhibit 4.1 INTEGRAL AD SCIENCE HOLDING CORP. REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this ?Agreement?) is made as of July 2, 2021 among Integral Ad Science Holding Corp, a Delaware corporation (the ?Company?), each of the investors listed on the signature pages hereto under the caption ?Sponsor Investors? (collectively, the ?Sponsor Investors?), each Person listed on the

July 1, 2021 EX-10.2

Form of Stock Option Award Agreement

Exhibit 10.2 INTEGRAL AD SCIENCE HOLDING CORP. OPTION AWARD NOTICE Pursuant to the terms and conditions of the Integral Ad Science Holding Corp. 2021 Omnibus Incentive Plan, as amended from time to time (the ?Plan?), Integral Ad Science Holding Corp., a Delaware corporation (the ?Company?), hereby grants to the individual listed below (?you? or the ?Participant?) an award of Stock Options to purch

July 1, 2021 424B4

15,000,000 Shares COMMON STOCK

Table of Contents Filed Pursuant to Rule 424(b)(4) Registration No. 333-256770 15,000,000 Shares COMMON STOCK This is an initial public offering of shares of common stock of Integral Ad Science Holding Corp. Prior to this offering, there has been no public market for our common stock. The initial public offering price per share is $18.00. We have been approved to list our common stock on the NASDA

July 1, 2021 EX-10.4

Integral Ad Science Holding Corp. 2021 Employee Stock Purchase Plan

Exhibit 10.4 INTEGRAL AD SCIENCE HOLDING CORP. 2021 EMPLOYEE STOCK PURCHASE PLAN ARTICLE I PURPOSE The Plan?s purpose is to assist employees of the Company and its Designated Companies in acquiring a share ownership interest in the Company, and to help such employees provide for their future security and to encourage them to remain in the employment of the Company and its Subsidiaries and Affiliat

July 1, 2021 S-8

As filed with the Securities and Exchange Commission on July 1, 2021

As filed with the Securities and Exchange Commission on July 1, 2021 Registration No.

June 29, 2021 8-A12B

Form 8-A filed with the Commission on June 29, 2021

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Integral Ad Science Holding LLC (Exact name of registrant as specified in its charter) Delaware 83-0731995 (State or other jurisdiction of incorporation) (I.R.S. Employer Identification No.) 95 Mor

June 25, 2021 CORRESP

Morgan Stanley & Co. LLC

Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 Jefferies LLC 520 Madison Avenue New York, NY 10022 Barclays Capital Inc. 745 Seventh Avenue New York, New York 10019 Evercore Group L.L.C. 55 East 52nd Street New York, New York 10055 June 25, 2021 Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Re: Integral Ad Science Hold

June 25, 2021 S-1/A

As filed with the Securities and Exchange Commission on June 25, 2021.

Table of Contents As filed with the Securities and Exchange Commission on June 25, 2021.

June 25, 2021 CORRESP

June 25, 2021

CORRESP 1 filename1.htm June 25, 2021 VIA EDGAR United States Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549-1090 Attention: Alexandra Barone Kathleen Collins Rebekah Lindsey Jan Woo Re: Integral Ad Science Holding Corp. Registration Statement on Form S-1 Originally Filed June 4, 2021 CIK: 0001842718 Ladies and Gentlemen: Integral Ad Science Holding Corp., a Delaware

June 21, 2021 EX-10.7

Form of Amended and Restated Option Award Agreement

Exhibit 10.7 INTEGRAL AD SCIENCE HOLDING CORP. AMENDED AND RESTATED STOCK OPTION AGREEMENT This AMENDED AND RESTATED STOCK OPTION AGREEMENT (this ?Agreement?) is made and entered into as of [?] (the ?Grant Date?), between Integral Ad Science Holding Corp., a Delaware corporation (the ?Company?), and [?] (?Optionholder?). The Company and Optionholder desire to enter into this Agreement whereby the

June 21, 2021 S-1/A

As filed with the Securities and Exchange Commission on June 21, 2021.

Table of Contents As filed with the Securities and Exchange Commission on June 21, 2021.

June 21, 2021 EX-10.4

Form of Stock Option Award Agreement.

Exhibit 10.4 INTEGRAL AD SCIENCE HOLDING CORP. OPTION AWARD NOTICE Pursuant to the terms and conditions of the Integral Ad Science Holding Corp. 2021 Omnibus Incentive Plan, as amended from time to time (the “Plan”), Integral Ad Science Holding Corp., a Delaware corporation (the “Company”), hereby grants to the individual listed below (“you” or the “Participant”) an award of Stock Options to purch

June 21, 2021 EX-3.1

Form of Certificate of Incorporation of Integral Ad Science Holding Corp., to be in effect upon the closing of this offering.

Exhibit 3.1 CERTIFICATE OF INCORPORATION INTEGRAL AD SCIENCE HOLDING CORP. ARTICLE ONE The name of the corporation is Integral Ad Science Holding Corp. (the “Corporation”). ARTICLE TWO The address of the Corporation’s registered office in the State of Delaware is Corporation Trust Center, 1209 Orange Street, in the City of Wilmington, County of New Castle, Delaware 19801. The name of its registere

June 14, 2021 EX-10.10

Form of Integral Ad Science Holding Corp. 2021 Employee Stock Purchase Plan

Exhibit 10.10 INTEGRAL AD SCIENCE HOLDING CORP. 2021 EMPLOYEE STOCK PURCHASE PLAN ARTICLE I PURPOSE The Plan?s purpose is to assist employees of the Company and its Designated Companies in acquiring a share ownership interest in the Company, and to help such employees provide for their future security and to encourage them to remain in the employment of the Company and its Subsidiaries and Affilia

June 14, 2021 EX-3.1

Form of Certificate of Incorporation of Integral Ad Science Holding Corp., to be in effect upon the closing of this offering.

EX-3.1 3 d35256dex31.htm EX-3.1 Exhibit 3.1 CERTIFICATE OF INCORPORATION INTEGRAL AD SCIENCE HOLDING CORP. ARTICLE ONE The name of the corporation is Integral Ad Science Holding Corp. (the “Corporation”). ARTICLE TWO The address of the Corporation’s registered office in the State of Delaware is Corporation Trust Center, 1209 Orange Street, in the City of Wilmington, County of New Castle, Delaware

June 14, 2021 EX-10.4

Form of Stock Option Award Agreement.

EX-10.4 6 d35256dex104.htm EX-10.4 Exhibit 10.4 INTEGRAL AD SCIENCE HOLDING CORP. OPTION AWARD NOTICE Pursuant to the terms and conditions of the Integral Ad Science Holding Corp. 2021 Omnibus Incentive Plan, as amended from time to time (the “Plan”), Integral Ad Science Holding Corp., a Delaware corporation (the “Company”), hereby grants to the individual listed below (“you” or the “Participant”)

June 14, 2021 S-1/A

As filed with the Securities and Exchange Commission on June 14, 2021.

As filed with the Securities and Exchange Commission on June 14, 2021. Registration No. 333-256770 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 1 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Integral Ad Science Holding LLC to be converted as described herein to a corporation named Integral Ad Science Holding Corp. (Exact name of regis

June 14, 2021 EX-1.1

Form of Underwriting Agreement.

EX-1.1 2 d35256dex11.htm EX-1.1 Exhibit 1.1 [•] Shares INTEGRAL AD SCIENCE HOLDING CORP. [•] COMMON STOCK (PAR VALUE $0.001 PER SHARE) UNDERWRITING AGREEMENT [•], 2021 [•], 2021 Morgan Stanley & Co. LLC Jefferies LLC Barclays Capital Inc. c/o Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 c/o Jefferies LLC 520 Madison Avenue New York, NY 10022 c/o Barclays Capital Inc. 745 Seventh

June 14, 2021 EX-10.7

Form of Amended and Restated Option Award Agreement

EX-10.7 9 d35256dex107.htm EX-10.7 Exhibit 10.7 INTEGRAL AD SCIENCE HOLDING CORP. AMENDED AND RESTATED STOCK OPTION AGREEMENT This AMENDED AND RESTATED STOCK OPTION AGREEMENT (this “Agreement”) is made and entered into as of [●] (the “Grant Date”), between Integral Ad Science Holding Corp., a Delaware corporation (the “Company”), and [●] (“Optionholder”). The Company and Optionholder desire to ent

June 14, 2021 EX-10.3

Form of Integral Ad Science Holding Corp. 2021 Omnibus Incentive Plan

EX-10.3 5 d35256dex103.htm EX-10.3 Exhibit 10.3 INTEGRAL AD SCIENCE HOLDING CORP. 2021 OMNIBUS INCENTIVE PLAN ARTICLE I PURPOSE; EFFECTIVE DATE; TERM Section 1.1 Purpose. The purpose of the Integral Ad Science Holding Corp. 2021 Omnibus Incentive Plan is to enhance the profitability and value of the Company for the benefit of its Stockholders by enabling the Company to offer Eligible Individuals s

June 14, 2021 EX-10.6

Integral Ad Science Holding Corp. Amended and Restated 2018 Non-Qualified Stock Option Plan (incorporated by reference to Exhibit 10.6 to the Registrant’s Registration Statement on Form S-1 (No. 333-256770), filed with the Commission on June 14, 2021)

EX-10.6 8 d35256dex106.htm EX-10.6 Exhibit 10.6 INTEGRAL AD SCIENCE HOLDING CORP. AMENDED AND RESTATED 2018 NON-QUALIFIED STOCK OPTION PLAN This Amended and Restated 2018 Non-Qualified Stock Option Plan (this “Plan”) constitutes an amendment and restatement of the Kavacha Topco, LLC 2018 Unit Option Plan (the “LLC Plan”). This Plan supersedes and replaces the LLC Plan in its entirety. 1. Purpose o

June 14, 2021 EX-3.2

Form of Bylaws of Integral Ad Science Holding Corp., to be in effect upon the closing of this offering.

EX-3.2 4 d35256dex32.htm EX-3.2 Exhibit 3.2 BYLAWS OF INTEGRAL AD SCIENCE HOLDING CORP. A Delaware corporation (Adopted as of [•], 2021) ARTICLE I OFFICES Section 1. Offices. Integral Ad Science Holding Corp. (the “Corporation”) may have an office or offices other than its registered office at such place or places, either within or outside the State of Delaware, as the Board of Directors of the Co

June 14, 2021 EX-10.9

Form of Director Nomination Agreement

EX-10.9 11 d35256dex109.htm EX-10.9 Exhibit 10.9 DIRECTOR NOMINATION AGREEMENT THIS DIRECTOR NOMINATION AGREEMENT (this “Agreement”) is made and entered into as of [●], 2021, by and among Integral Ad Science Holding Corp., a Delaware corporation (the “Company”), Vista Equity Partners Fund VI, L.P., Vista Equity Partners Fund VI-A, L.P., VEPF VI FAF, L.P., Vista Equity Partners Fund VI GP, L.P., VE

June 14, 2021 EX-10.5

Form of Restricted Stock Unit Award Agreement.

EX-10.5 7 d35256dex105.htm EX-10.5 Exhibit 10.5 INTEGRAL AD SCIENCE HOLDING CORP. RSU AWARD NOTICE Pursuant to the terms and conditions of the Integral Ad Science Holding Corp. 2021 Omnibus Incentive Plan, as amended from time to time (the “Plan”), Integral Ad Science Holding Corp., a Delaware corporation (the “Company”), hereby grants to the individual listed below (“you” or the “Participant”) an

June 14, 2021 EX-10.8

Form of Indemnification Agreement

Exhibit 10.8 INDEMNIFICATION AGREEMENT THIS INDEMNIFICATION AGREEMENT (this ?Agreement?) is made and entered into as of [?], 2021, between Integral Ad Science Holding Corp., a Delaware corporation (the ?Company?), and [ ] (?Indemnitee?). WHEREAS, highly competent persons have become more reluctant to serve corporations as directors or officers or in other capacities unless they are provided with a

June 4, 2021 EX-10.13

Amendment To Employment Agreement with Joseph Pergola

Exhibit 10.13 AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT This Amendment No. 1 (this “Amendment”) to the Employment Agreement (the “Original Employment Agreement”) dated October 30, 2019 by and between Integral Ad Science, Inc. (the “Company”) and Joseph Pergola (“Employee”), is made and entered into as of November 24, 2020, by and between the Company and the Employee. Capitalized terms used but not d

June 4, 2021 EX-10.18

Lease Agreement between Brickman 95 Morton LLC and Integral Ad Science, Inc. dated July 22, 2014.

EX-10.18 15 d35256dex1018.htm EX-10.18 Exhibit 10.18 7/04 STANDARD FORM OF LOFT LEASE The Real Estate Board of New York, Inc. Agreement of Lease, made as of this 22nd day of July in the year 2014, between BRICKMAN 95 MORTON LLC, having an office at c/o Brickman Associates, 712 Fifth Avenue, New York, NY 10019 party of the first part, hereinafter referred to as OWNER, and INTEGRAL AD SCIENCE, INC.,

June 4, 2021 EX-10.15

Employment Agreement with Oleg Bershadsky

Exhibit 10.15 February 14, 2019 Oleg Bershadsky c/o Integral Ad Science, Inc. 95 Morton St, FL 8 New York, NY 10014 Re: Employment with Integral Ad Science, Inc. Dear Oleg: This letter sets forth the terms of your employment by Integral Ad Science, Inc. (the “Company”). We are value the role that you can serve with the Company. 1. You will be the Senior Vice President, Sales Strategy and Business

June 4, 2021 EX-10.11

Employment Agreement with Lisa Utzschneider

EX-10.11 8 d35256dex1011.htm EX-10.11 Exhibit 10.11 December 3, 2018 Lisa Utzschneider c/o Integral Ad Science, Inc. 95 Morton St, FL 8 New York, NY 10014 Re: Employment with Integral Ad Science, Inc. Dear Lisa: This letter sets forth the terms of your employment by Integral Ad Science, Inc. (the “Company”). We value the role that you can serve with the Company. 1. You will be the Chief Executive

June 4, 2021 EX-3.1

Form of Amended and Restated Certificate of Incorporation of Integral Ad Science Holding Corp., to be in effect upon the closing of this offering.

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF INTEGRAL AD SCIENCE HOLDING CORP. * * * * * Joseph Pergola, being the Chief Financial Officer of Integral Ad Science Holding Corp., a corporation duly organized and existing under and by virtue of the General Corporation Law of the State of Delaware (the “Corporation”), DOES HEREBY CERTIFY as follows: FIRST: The present name of the C

June 4, 2021 EX-21.1

List of subsidiaries of the registrant.

Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT Name Jurisdiction of Formation Integral Ad Science, Inc. Delaware Integral Ad Science UK Ltd. United Kingdom

June 4, 2021 S-1

Powers of attorney (included on signature page).

Table of Contents As filed with the Securities and Exchange Commission on June 4, 2021.

June 4, 2021 EX-10.16

Amendment To Employment Agreement with Oleg Bershadsky

Exhibit 10.16 AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT This Amendment No. 1 (this “Amendment”) to the Employment Agreement (the “Original Employment Agreement”) dated February 14, 2019 by and between Integral Ad Science, Inc. (the “Company”) and Oleg Bershadsky (“Employee”), is made and entered into as of October 21, 2020, by and between the Company and the Employee. Capitalized terms used but not

June 4, 2021 EX-10.12

Employment Agreement with Joseph Pergola

EX-10.12 9 d35256dex1012.htm EX-10.12 Exhibit 10.12 October 30, 2019 Joseph Pergola c/o Integral Ad Science, Inc. 95 Morton St, FL 8 New York, NY 10014 Re: Employment with Integral Ad Science, Inc. Dear Joseph: This letter sets forth the terms of your employment by Integral Ad Science, Inc. (the “Company”). We value the role that you can serve with the Company. 1. You will be the Chief of Staff of

June 4, 2021 EX-10.14

Employment Agreement with Kshitij Sharma

Exhibit 10.14 September 29, 2020 Kshitij Sharma New York, NY Re: Employment with Integral Ad Science, Inc. Dear Kshitij, This letter sets forth the terms of your employment by Integral Ad Science, Inc. (the “Company”). We are value the role that you can serve with the Company. 1. You will be the Chief Product Officer of the Company, reporting to the Chief Executive Officer. In this capacity, you w

June 4, 2021 EX-10.1

Credit Agreement, dated as of July 19, 2018, among Integral Ad Science, Inc., as borrower, Kavacha Intermediate, LLC, as a guarantor, each of the other guarantors party thereto, and a syndicate of lenders and Goldman Sachs BDC, Inc., as Administrative Agent.

Execution Version Exhibit 10.1 CREDIT AGREEMENT dated as of July 19, 2018 among KAVACHA MERGER SUB, INC., as Merger Sub and the initial Borrower, INTEGRAL AD SCIENCE, INC., as the surviving entity after the Closing Date Acquisition and thereafter as the Borrower, KAVACHA INTERMEDIATE, LLC, as Holdings, THE GUARANTORS FROM TIME TO TIME PARTY HERETO, THE LENDERS FROM TIME TO TIME PARTY HERETO, GOLDM

June 4, 2021 EX-10.10

Form of Director Nomination Agreement

Exhibit 10.10 DIRECTOR NOMINATION AGREEMENT THIS DIRECTOR NOMINATION AGREEMENT (this “Agreement”) is made and entered into as of [•], 2021, by and among Integral Ad Science Holding Corp., a Delaware corporation (the “Company”), Vista Equity Partners Fund VI, L.P., Vista Equity Partners Fund VI-A, L.P., VEPF VI FAF, L.P., Vista Equity Partners Fund VI GP, L.P., VEPF VI GP, Ltd., and VEP Group, LLC

June 4, 2021 EX-10.2

Management Agreement, dated as of July 19, 2018, by and among Vista Equity Partners Management, LLC, Kavacha Holdings, Inc., Kavacha Intermediate, LLC, Integral Ad Science, Inc., and the Company.

Exhibit 10.2 MANAGEMENT AGREEMENT This MANAGEMENT AGREEMENT (this ?Agreement?) is made as of July 19, 2018, by and among Vista Equity Partners Management, LLC, a Delaware limited liability company (?VEP?), Kavacha Topco, LLC, a Delaware limited liability company (?Topco?), Kavacha Intermediate, LLC, a Delaware limited liability company (?Intermediate?), Kavacha Holdings, Inc., a Delaware corporati

June 4, 2021 EX-99.1

Consent of Christina Lema

EX-99.1 20 d35256dex991.htm EX-99.1 Exhibit 99.1 The undersigned hereby consents to being named in the registration statement on Form S-1 and in all subsequent amendments and post-effective amendments or supplements thereto and in any registration statement for the same offering that is to be effective upon filing pursuant to Rule 462(b) under the Securities Act of 1933, as amended (the “Registrat

June 4, 2021 EX-10.17

Employment Agreement with Tony Lucia

Exhibit 10.17 March 1, 2019 Tony Lucia c/o Integral Ad Science, Inc. 95 Morton St, FL 8 New York, NY 10014 Re: Employment with Integral Ad Science, Inc. Dear Tony: This letter sets forth the terms of your employment by Integral Ad Science, Inc. (the ?Company?). We are value the role that you can serve with the Company. 1. You will be the Chief Technology Officer of the Company, reporting to the Ch

June 4, 2021 CORRESP

Robert Goedert, P.C. To Call Writer Directly: +1 312 862 7317 [email protected] 300 North LaSalle Chicago, IL 60654 United States +1 312 862 2000 www.kirkland.com Facsimile: +1 312 862 2200 June 4, 2021

Robert Goedert, P.C. To Call Writer Directly: +1 312 862 7317 [email protected] 300 North LaSalle Chicago, IL 60654 United States +1 312 862 2000 www.kirkland.com Facsimile: +1 312 862 2200 June 4, 2021 Via EDGAR Submission and Overnight Delivery AGR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attention: Rebekah Lin

June 4, 2021 EX-3.2

Bylaws of Integral Ad Science Holding Corp., dated June 29, 2021 (incorporated by reference to Exhibit 3.2 to the Company’s Current Report on Form 8-K filed with the

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF INTEGRAL AD SCIENCE HOLDING CORP. A Delaware corporation (Adopted as of [•], 2021) ARTICLE I OFFICES Section 1. Offices. Integral Ad Science Holding Corp. (the “Corporation”) may have an office or offices other than its registered office at such place or places, either within or outside the State of Delaware, as the Board of Directors of the Corporation (

June 4, 2021 EX-10.19

First Amendment to Lease Agreement, between Brickman 95 Morton LLC and Integral Ad Science, Inc. dated March 25, 2016.

EX-10.19 16 d35256dex1019.htm EX-10.19 Exhibit 10.19 Michelle Greenberg Of Counsel Email: [email protected] April 1, 2016 VIA FEDERAL EXPRESS Arden Schneider Integral Ad Science, Inc. 95 Morton Street, 8th Floor New York, New York 10014 Re: First Amendment to Lease between Brickman 95 Morton LLC and Integral Ad Science, Inc. Premises: 95 Morton Street, 4th Floor, New York, NY Dear Arden: E

June 4, 2021 EX-4.1

Form of Registration Rights Agreement.

Exhibit 4.1 INTEGRAL AD SCIENCE HOLDING CORP. REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is made as of [•], 2021 among Integral Ad Science Holding Corp., a Delaware corporation (the “Company”), each of the investors listed on the signature pages hereto under the caption “Sponsor Investors” (collectively, the “Sponsor Investors”), each Person listed on the s

May 20, 2021 DRS/A

Amendment No. 3 to confidential draft submission As submitted confidentially to the Securities and Exchange Commission on May 19, 2021 pursuant to the Jumpstart Our Business Startups Act of 2012. This draft registration statement has not been publicl

Table of Contents Amendment No. 3 to confidential draft submission As submitted confidentially to the Securities and Exchange Commission on May 19, 2021 pursuant to the Jumpstart Our Business Startups Act of 2012. This draft registration statement has not been publicly filed with the Securities and Exchange Commission and all information herein remains strictly confidential. Registration No. 333-

May 20, 2021 EX-10.10

DIRECTOR NOMINATION AGREEMENT

EX-10.10 5 filename5.htm Exhibit 10.10 DIRECTOR NOMINATION AGREEMENT THIS DIRECTOR NOMINATION AGREEMENT (this “Agreement”) is made and entered into as of [•], 2021, by and among Integral Ad Science Holding Corp., a Delaware corporation (the “Company”), Vista Equity Partners Fund VI, L.P., Vista Equity Partners Fund VI-A, L.P., VEPF VI FAF, L.P., Vista Equity Partners Fund VI GP, L.P., VEPF VI GP,

May 20, 2021 EX-3.1

AMENDED AND RESTATED CERTIFICATE OF INCORPORATION INTEGRAL AD SCIENCE HOLDING CORP. * * * * *

EX-3.1 2 filename2.htm Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF INTEGRAL AD SCIENCE HOLDING CORP. * * * * * Joseph Pergola, being the Chief Financial Officer of Integral Ad Science Holding Corp., a corporation duly organized and existing under and by virtue of the General Corporation Law of the State of Delaware (the “Corporation”), DOES HEREBY CERTIFY as follows: FIRST: Th

May 20, 2021 EX-4.1

INTEGRAL AD SCIENCE HOLDING CORP. REGISTRATION RIGHTS AGREEMENT

Exhibit 4.1 INTEGRAL AD SCIENCE HOLDING CORP. REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this ?Agreement?) is made as of [?], 2021 among Integral Ad Science Holding Corp., a Delaware corporation (the ?Company?), each of the investors listed on the signature pages hereto under the caption ?Sponsor Investors? (collectively, the ?Sponsor Investors?), each Person listed on the s

May 20, 2021 EX-3.2

AMENDED AND RESTATED BYLAWS INTEGRAL AD SCIENCE HOLDING CORP. A Delaware corporation (Adopted as of [•], 2021) ARTICLE I

EX-3.2 3 filename3.htm Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF INTEGRAL AD SCIENCE HOLDING CORP. A Delaware corporation (Adopted as of [•], 2021) ARTICLE I OFFICES Section 1. Offices. Integral Ad Science Holding Corp. (the “Corporation”) may have an office or offices other than its registered office at such place or places, either within or outside the State of Delaware, as the Board of Directo

April 27, 2021 DRS/A

Amendment No. 2 to confidential draft submission As submitted confidentially to the Securities and Exchange Commission on April 26, 2021 pursuant to the Jumpstart Our Business Startups Act of 2012. This draft registration statement has not been publi

Table of Contents Amendment No. 2 to confidential draft submission As submitted confidentially to the Securities and Exchange Commission on April 26, 2021 pursuant to the Jumpstart Our Business Startups Act of 2012. This draft registration statement has not been publicly filed with the Securities and Exchange Commission and all information herein remains strictly confidential. Registration No. 333

April 26, 2021 DRSLTR

Robert Goedert, P.C. To Call Writer Directly: +1 312 862 7317 [email protected] 300 North LaSalle Chicago, IL 60654 United States +1 312 862 2000 www.kirkland.com Facsimile: +1 312 862 2200 April 26, 2021

Robert Goedert, P.C. To Call Writer Directly: +1 312 862 7317 [email protected] 300 North LaSalle Chicago, IL 60654 United States +1 312 862 2000 www.kirkland.com Facsimile: +1 312 862 2200 April 26, 2021 Via EDGAR Submission and Overnight Delivery AGR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attention: Rebekah L

April 1, 2021 EX-10.14

(To the Letter dated September 29, 2020) Employment and Restrictive Covenants Agreement

EX-10.14 7 filename7.htm Exhibit 10.14 September 29, 2020 Kshitij Sharma New York, NY Re: Employment with Integral Ad Science, Inc. Dear Kshitij, This letter sets forth the terms of your employment by Integral Ad Science, Inc. (the “Company”). We are value the role that you can serve with the Company. 1. You will be the Chief Product Officer of the Company, reporting to the Chief Executive Officer

April 1, 2021 EX-10.16

AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT

EX-10.16 9 filename9.htm Exhibit 10.16 AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT This Amendment No. 1 (this “Amendment”) to the Employment Agreement (the “Original Employment Agreement”) dated February 14, 2019 by and between Integral Ad Science, Inc. (the “Company”) and Oleg Bershadsky (“Employee”), is made and entered into as of October 21, 2020, by and between the Company and the Employee. Capita

April 1, 2021 EX-10.13

AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT

EX-10.13 6 filename6.htm Exhibit 10.13 AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT This Amendment No. 1 (this “Amendment”) to the Employment Agreement (the “Original Employment Agreement”) dated October 30, 2019 by and between Integral Ad Science, Inc. (the “Company”) and Joseph Pergola (“Employee”), is made and entered into as of November 24, 2020, by and between the Company and the Employee. Capital

April 1, 2021 EX-10.2

MANAGEMENT AGREEMENT

EX-10.2 3 filename3.htm Exhibit 10.2 MANAGEMENT AGREEMENT This MANAGEMENT AGREEMENT (this “Agreement”) is made as of July 19, 2018, by and among Vista Equity Partners Management, LLC, a Delaware limited liability company (“VEP”), Kavacha Topco, LLC, a Delaware limited liability company (“Topco”), Kavacha Intermediate, LLC, a Delaware limited liability company (“Intermediate”), Kavacha Holdings, In

April 1, 2021 EX-10.17

(To the Letter dated March 1st, 2019) Employment and Restrictive Covenants Agreement

EX-10.17 10 filename10.htm Exhibit 10.17 March 1, 2019 Tony Lucia c/o Integral Ad Science, Inc. 95 Morton St, FL 8 New York, NY 10014 Re: Employment with Integral Ad Science, Inc. Dear Tony: This letter sets forth the terms of your employment by Integral Ad Science, Inc. (the “Company”). We are value the role that you can serve with the Company. 1. You will be the Chief Technology Officer of the C

April 1, 2021 EX-10.1

CREDIT AGREEMENT dated as of July 19, 2018 KAVACHA MERGER SUB, INC., as Merger Sub and the initial Borrower, INTEGRAL AD SCIENCE, INC., as the surviving entity after the Closing Date Acquisition and thereafter as the Borrower, KAVACHA INTERMEDIATE, L

Execution Version Exhibit 10.1 CREDIT AGREEMENT dated as of July 19, 2018 among KAVACHA MERGER SUB, INC., as Merger Sub and the initial Borrower, INTEGRAL AD SCIENCE, INC., as the surviving entity after the Closing Date Acquisition and thereafter as the Borrower, KAVACHA INTERMEDIATE, LLC, as Holdings, THE GUARANTORS FROM TIME TO TIME PARTY HERETO, THE LENDERS FROM TIME TO TIME PARTY HERETO, GOLDM

April 1, 2021 EX-10.18

STANDARD FORM OF LOFT LEASE The Real Estate Board of New York, Inc.

EX-10.18 11 filename11.htm Exhibit 10.18 7/04 STANDARD FORM OF LOFT LEASE The Real Estate Board of New York, Inc. Agreement of Lease, made as of this 22nd day of July in the year 2014, between BRICKMAN 95 MORTON LLC, having an office at c/o Brickman Associates, 712 Fifth Avenue, New York, NY 10019 party of the first part, hereinafter referred to as OWNER, and INTEGRAL AD SCIENCE, INC., having an o

April 1, 2021 EX-10.15

(To the Letter dated February 14, 2019) Employment and Restrictive Covenants Agreement

EX-10.15 8 filename8.htm Exhibit 10.15 February 14, 2019 Oleg Bershadsky c/o Integral Ad Science, Inc. 95 Morton St, FL 8 New York, NY 10014 Re: Employment with Integral Ad Science, Inc. Dear Oleg: This letter sets forth the terms of your employment by Integral Ad Science, Inc. (the “Company”). We are value the role that you can serve with the Company. 1. You will be the Senior Vice President, Sal

April 1, 2021 EX-10.11

(To the Letter dated December 3, 2018) Employment and Restrictive Covenants Agreement

EX-10.11 4 filename4.htm Exhibit 10.11 December 3, 2018 Lisa Utzschneider c/o Integral Ad Science, Inc. 95 Morton St, FL 8 New York, NY 10014 Re: Employment with Integral Ad Science, Inc. Dear Lisa: This letter sets forth the terms of your employment by Integral Ad Science, Inc. (the “Company”). We value the role that you can serve with the Company. 1. You will be the Chief Executive Officer of th

April 1, 2021 EX-10.12

(To the Letter dated October 30, 2019) Employment and Restrictive Covenants Agreement

EX-10.12 5 filename5.htm Exhibit 10.12 October 30, 2019 Joseph Pergola c/o Integral Ad Science, Inc. 95 Morton St, FL 8 New York, NY 10014 Re: Employment with Integral Ad Science, Inc. Dear Joseph: This letter sets forth the terms of your employment by Integral Ad Science, Inc. (the “Company”). We value the role that you can serve with the Company. 1. You will be the Chief of Staff of the Company,

April 1, 2021 EX-10.19

April 1, 2016

EX-10.19 12 filename12.htm Exhibit 10.19 Michelle Greenberg Of Counsel Email: [email protected] April 1, 2016 VIA FEDERAL EXPRESS Arden Schneider Integral Ad Science, Inc. 95 Morton Street, 8th Floor New York, New York 10014 Re: First Amendment to Lease between Brickman 95 Morton LLC and Integral Ad Science, Inc. Premises: 95 Morton Street, 4th Floor, New York, NY Dear Arden: Enclosed for

April 1, 2021 DRS/A

Amendment No. 1 to confidential draft submission As submitted confidentially to the Securities and Exchange Commission on March 31, 2021 pursuant to the Jumpstart Our Business Startups Act of 2012. This draft registration statement has not been publi

Table of Contents Amendment No. 1 to confidential draft submission As submitted confidentially to the Securities and Exchange Commission on March 31, 2021 pursuant to the Jumpstart Our Business Startups Act of 2012. This draft registration statement has not been publicly filed with the Securities and Exchange Commission and all information herein remains strictly confidential. Registration No. 333

March 31, 2021 DRSLTR

300 North LaSalle Chicago, IL 60654 Robert Goedert, P.C. United States To Call Writer Directly: Facsimile: +1 312 862 7317 +1 312 862 2000 +1 312 862 2200 [email protected] www.kirkland.com March 31, 2021

300 North LaSalle Chicago, IL 60654 Robert Goedert, P.C. United States To Call Writer Directly: Facsimile: +1 312 862 7317 +1 312 862 2000 +1 312 862 2200 [email protected] www.kirkland.com March 31, 2021 Via EDGAR Submission and Overnight Delivery United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attention: Rebekah Linds

February 12, 2021 DRS

As submitted confidentially to the Securities and Exchange Commission on February 12, 2021 pursuant to the Jumpstart Our Business Startups Act of 2012. This draft registration statement has not been publicly filed with the Securities and Exchange Com

Table of Contents As submitted confidentially to the Securities and Exchange Commission on February 12, 2021 pursuant to the Jumpstart Our Business Startups Act of 2012.

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