STOCK TITAN

Integral Ad Science (NASDAQ: IAS) sold for $10.30 per share in $1.6B cash deal

Filing Impact
(High)
Filing Sentiment
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Integral Ad Science Holding Corp. completed its sale to Igloo Group Parent, Inc., an affiliate of Novacap, in an all‑cash merger valuing the company at approximately $1.6 billion. Each outstanding share of common stock (other than excluded and appraisal shares) was converted into the right to receive $10.30 in cash.

In connection with the closing, the company entered into a new Credit Agreement with Royal Bank of Canada and terminated its prior credit facility, releasing related liens and guarantees. The merger triggered a change in control, with the company becoming a wholly owned subsidiary of Parent, all pre‑merger directors resigning, and Merger Sub’s directors assuming board roles.

Company stock was halted and will be delisted from Nasdaq, followed by deregistration and suspension of SEC reporting. Equity awards were converted into cash or replacement awards, and the CEO and CFO received retention bonus agreements of $4.0 million and $0.6 million, respectively, subject to service-based vesting.

Positive

  • None.

Negative

  • None.

Insights

IAS is taken private in a $1.6B all‑cash deal at $10.30 per share, with new debt financing and delisting from Nasdaq.

The merger moves Integral Ad Science from a public to a privately held structure under Igloo Group Parent, backed by Novacap. Public shareholders receive $10.30 in cash per share, with the aggregate purchase price for outstanding common stock (excluding owned and appraisal shares) described as approximately $1.6 billion. This fully cash consideration crystallizes value for existing shareholders and ends their ongoing participation in the company.

To support the transaction, Parent, with the company as subsidiary guarantor, entered into a new Credit Agreement with Royal Bank of Canada, while the company terminated its 2021 PNC Bank–led facility and related liens and guarantees. This shifts the capital structure toward a sponsor-backed leveraged model, though specific leverage terms are not detailed in the excerpt.

The merger results in a formal change in control, full board turnover, and plans to delist the stock via Form 25 and deregister via Form 15 under the Exchange Act. Existing equity-based compensation is largely converted into cash rights or replacement awards linked to an indirect parent entity, aligning management and key employees with the new private ownership. Retention bonuses of $4.0 million for the CEO and $0.6 million for the CFO, vesting over up to 12 months from the Effective Time, are designed to support leadership continuity during the initial post‑closing period.


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 23, 2025 (December 19, 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)
(Commission File Number)
(IRS Employer Identification No.)
 

 
12 E 49th Street, 20th Floor
New York, NY
 
10017
 
 
(Address of principal executive offices)
 
(Zip Code)
 

Registrant’s telephone number, including area code: 646 278-4871

Not Applicable
(Former name or former address, if changed since last report.)



Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:


Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)


Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)


Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))


Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:
Title of each class
 
Trading
Symbol(s)
 
Name of each exchange
on which registered
Common stock, par value $0.001
 
IAS
 
The Nasdaq Stock Market LLC
(Nasdaq Global Select Market)
 
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
 
Emerging growth company
 
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐



Introduction
 
As previously reported, on September 24, 2025, Integral Ad Science Holding Corp., a Delaware corporation (the “Company”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Igloo Group Parent, Inc., a Delaware corporation (“Parent”), and Igloo Group Acquisition Company, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (“Merger Sub”). Parent and Merger Sub are affiliates of investment funds managed by Novacap Management Inc. (“Novacap”).
 
On December 23, 2025 (the “Closing Date”), pursuant to the Merger Agreement, Merger Sub was merged with and into the Company, with the Company surviving as a wholly owned subsidiary of Parent (the “Merger”).
 
Item 1.01.
Entry into a Material Definitive Agreement.
 
The information set forth in the Introduction to this Current Report on Form 8-K (the “Introduction”) is incorporated by reference into this Item 1.01.
 
Concurrently with the closing of the Merger, Parent, as borrower, and the Company, as a subsidiary guarantor, entered into that certain Credit Agreement with Royal Bank of Canada, as administrative agent and collateral agent, and the lenders from time to time party thereto and the guarantors from time to time party thereto (the “Credit Agreement”).
 
Item 1.02.
Termination of a Material Definitive Agreement.
 
The information set forth in the Introduction is incorporated by reference into this Item 1.02.
 
Concurrently with the closing of the Merger, the Company (i) terminated that certain Credit Agreement, dated as of September 29, 2021, as amended, among Integral Ad Science, Inc., Kavacha Holdings, Inc., the other loan parties party thereto, the lenders party thereto and PNC Bank, National Association, as administrative agent, (ii) released all liens and security interests created and terminated all guarantees provided, in each case, in connection therewith and (iii) terminated all other obligations outstanding thereunder.
 
Item 2.01.
Completion of Acquisition or Disposition of Assets.
 
The information set forth in the Introduction and in Item 3.03, Item 5.01, Item 5.02 and Item 5.03 of this Current Report on Form 8-K is incorporated by reference into this Item 2.01.
 
At the effective time of the Merger (the “Effective Time”), upon the terms and subject to the conditions set forth in the Merger Agreement, each share of common stock, par value $0.001 per share, of the Company (“Company Common Stock”) that was issued and outstanding as of immediately prior to the Effective Time (other than any shares of Company Common Stock that were held by the Company as treasury stock, held by any subsidiary of the Company or owned by Parent or any of its subsidiaries (including Merger Sub) (the “Owned Company Shares”), or any shares of Company Common Stock as to which appraisal rights had been properly exercised in accordance with Delaware law (the “Appraisal Shares”)), was automatically cancelled, extinguished and converted into the right to receive cash in an amount equal to $10.30, without interest thereon (the “Per Share Price”).
 
At the Effective Time, each outstanding option to purchase shares of Company Common Stock (“Company Option”), other than Company Options that had an exercise price per share of Company Common Stock as of immediately prior to the Effective Time that was greater than or equal to the Per Share Price (the “Underwater Options”), was automatically cancelled and converted into the right to receive an amount in cash, without interest and subject to applicable withholding taxes, equal to the product of (i) the total number of shares of Company Common Stock subject to such Company Option as of immediately prior to the Effective Time and (ii) the excess, if any, of the Per Share Price over the exercise price per share of Company Common Stock of such Company Option.
 
At the Effective Time, each Underwater Option was cancelled for no consideration.
 

At the Effective Time, each award of restricted stock units of the Company (each, a “Company RSU”) that was outstanding and vested as of immediately prior to the Effective Time, or that vested in accordance with its terms as a result of the consummation of the transactions contemplated by the Merger Agreement (“Vested Company RSUs”), was cancelled and converted into the right to receive an amount in cash, without interest and subject to applicable withholding taxes, equal to the product of (i) the Per Share Price and (ii) the total number of shares of Company Common Stock subject to such Vested Company RSU as of immediately prior to the Effective Time.
 
At the Effective Time, each Company RSU that was outstanding as of immediately prior to the Effective Time and that was not a Vested Company RSU (an “Unvested Company RSU”) was cancelled and converted into a contingent right to receive an amount in cash (each, a “Converted Cash Award”) equal to the product of (i) the Per Share Price and (ii) the total number of shares of Company Common Stock subject to such Unvested Company RSU as of immediately prior to the Effective Time, which Converted Cash Award will continue to have, and will be subject to, the same terms and conditions (including vesting conditions) as were applied to the corresponding Unvested Company RSUs immediately prior to the Effective Time, except (A) for terms rendered inoperative by reason of the consummation of the transactions contemplated by the Merger Agreement and other administrative or ministerial changes determined by Parent and (B) that the surviving corporation will pay any portion of a Converted Cash Award that vests to the applicable holder thereof, less any applicable withholding taxes, no later than the first regularly scheduled payroll date following the first day of the month following the date on which such portion vests.
 
With respect to all awards of market share units of the Company outstanding as of immediately prior to the Effective Time (collectively, the “Company MSUs”), 50% of such Company MSUs were, at the Effective Time, automatically cancelled and converted into a Converted Cash Award equal to the product of (i) the Per Share Price and (ii) the total number of shares of Company Common Stock subject to such Company MSU as of immediately prior to the Effective Time (with the payout factor applicable to such Company MSU determined based on the Per Share Price), which Converted Cash Award will continue to have, and will be subject to, the same terms and conditions (including any service-based vesting conditions and double trigger vesting conditions, but excluding any performance-based vesting conditions) as were applied to the corresponding Company MSUs immediately prior to the Effective Time, except (A) for terms rendered inoperative by reason of the consummation of the transactions contemplated by the Merger Agreement and other administrative or ministerial changes determined by Parent and (B) that the surviving corporation will pay any portion of a Converted Cash Award that vests to the applicable holder thereof, less any applicable withholding taxes, no later than the first regularly scheduled payroll date following the first day of the month following the date on which such portion vests.
 
At the Effective Time, the remaining portion of Company MSUs outstanding as of immediately prior to the Effective Time was automatically cancelled and converted into a restricted limited partnership unit award with respect to the common equity in an indirect parent entity of Parent that is the ultimate parent entity of Parent formed to effectuate the transactions contemplated by the Merger Agreement (the “Replacement Company MSU Award”), with the number of units covered by such Replacement Company MSU Award equal to the quotient of (i) the product of (x) the Per Share Price and (y) the total number of shares of Company Common Stock subject to such Company MSU as of immediately prior to the Effective Time (with the payout factor applicable to such Company MSU determined based on the Per Share Price), and (ii) the fair market value of such unit as of the Effective Time (based on the same price per unit paid to acquire equity in such entity in connection with the transactions contemplated by the Merger Agreement). The Replacement Company MSU Award will, subject to the holder’s continued service with Parent, the surviving corporation or one of its subsidiaries or a direct or indirect parent entity of Parent through the applicable vesting dates, vest and be settled at the same time the Company MSUs for which such Replacement Company MSU Award was exchanged would have vested and been settled pursuant to its terms. All Replacement Company MSU Awards will otherwise have the same terms and conditions (including service-based vesting conditions and double trigger vesting conditions, but excluding any performance-based vesting conditions) as applied to the Company MSUs for which they were exchanged, except for terms rendered inoperative by reason of the consummation of the transactions contemplated by the Merger Agreement and other administrative or ministerial changes determined by Parent; provided, however, that upon settlement of any Replacement Company MSU Award, the holder thereof will be permitted, in lieu of paying any taxes required to be withheld from such holder, to require Parent, the surviving corporation, or one of its subsidiaries or a direct or indirect parent entity of Parent, as applicable, to withhold a number of units otherwise issuable upon settlement having a fair market value equal to such required withholding taxes.
 

The foregoing description of the Merger, the Merger Agreement and the transactions contemplated thereby is subject to and qualified in its entirety by reference to the full text of the Merger Agreement, which was filed as Exhibit 2.1 to the Company’s Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission (the “SEC”) on September 24, 2025 and is incorporated herein by reference.
 
Item 2.03.
Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.
 
The information set forth in Item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 2.03.
 
Item 3.01.
Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.
 
The information set forth in the Introduction and in Item 2.01 and Item 3.03 of this Current Report on Form 8-K is incorporated by reference into this Item 3.01.
 
On the Closing Date, the Company notified representatives of the Nasdaq Global Select Market (“Nasdaq”) that the Merger had been completed and requested that Nasdaq file with the SEC a Notification of Removal from Listing and/or Registration on Form 25 under Section 12(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), to delist the Company Common Stock from Nasdaq and deregister the Company Common Stock. Upon effectiveness of the Form 25, the Company intends to file with the SEC a Certification and Notice of Termination on Form 15 to deregister the Company Common Stock under Section 12(g) of the Exchange Act and suspend the Company’s reporting obligations under Sections 13 and 15(d) of the Exchange Act.
 
Trading of Company Common Stock on Nasdaq was halted prior to the opening of trading on the Closing Date.
 
Item 3.03.
Material Modification to Rights of Security Holders.
 
The information set forth in the Introduction and in Item 2.01, Item 3.01, Item 5.01 and Item 5.03 of this Current Report on Form 8-K is incorporated by reference into this Item 3.03.
 
Pursuant to the Merger Agreement and in connection with the completion of the Merger, each share of Company Common Stock (other than the Owned Company Shares and the Appraisal Shares) was automatically cancelled, extinguished and converted into the right to receive the Per Share Price. Accordingly, at the Effective Time, the holders of such shares of Company Common Stock ceased to have any rights as shareholders of the Company, other than the right to receive the Per Share Price pursuant to the Merger Agreement.
 
Item 5.01.
Changes in Control of Registrant.
 
The information set forth in the Introduction and in Item 2.01, Item 3.03 and Item 5.03 of this Current Report on Form 8-K is incorporated by reference into this Item 5.01.
 
As a result of the Merger, a change in control of the Company occurred, and the Company became a wholly owned subsidiary of Parent.
 
In connection with the Merger, the aggregate purchase price paid for all outstanding shares of Company Common Stock (excluding the Owned Company Shares and the Appraisal Shares) was approximately $1.6 billion. The funds used by Parent to consummate the Merger and complete the related transactions were sourced from a combination of (i) equity contributions from Novacap or its affiliates, (ii) proceeds received in connection with the Credit Agreement and (iii) the available cash balances of the Company.
 

Item 5.02.
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
 
The information set forth in the Introduction and in Item 2.01 of this Current Report on Form 8-K is incorporated by reference into this Item 5.02.
 
Effective as of the Effective Time, each of Lisa Utzschneider, Rod Aliabadi, Otto Berkes, Michael Fosnaugh, Bridgette Heller, Christina Lema, Robert Lord, Brooke Nakatsukasa, Jill Putman and Martin Taylor resigned from the Board of Directors of the Company (the “Board”) and from any and all committees of the Board on which they served and ceased to be directors of the Company.
 
At the Effective Time, the directors of Merger Sub immediately prior to the Effective Time became directors of the surviving corporation; and the officers of the Company immediately prior to the completion of the Merger became the officers of the surviving corporation, in each case, until their respective successor is duly elected or appointed and qualified or their earlier death, resignation or removal.
 
On December 19, 2025 and December 20, 2025, the Company entered into retention bonus agreements (each, a “Retention Bonus Agreement”) with Lisa Utzschneider, Chief Executive Officer of the Company, and Alpana Wegner, Chief Financial Officer of the Company, respectively. Pursuant to the terms of the applicable Retention Bonus Agreement, Ms. Utzschneider will be entitled to a retention award equal to $4.0 million and Ms. Wegner will be entitled to a retention award equal to $0.6 million. The awards granted under the Retention Bonus Agreements will vest and become payable as follows: (i) 33.34% upon the Effective Time, (ii) 33.33% on the six-month anniversary of the Effective Time, and (iii) 33.33% on the 12-month anniversary of the Effective Time, in each case, subject to the recipient’s continued employment with the Company or its subsidiaries through the applicable vesting date. Upon a termination of employment prior to the applicable vesting date, except as set forth below, any unvested portion of the retention award will automatically be forfeited for no consideration.
 
With respect to Ms. Utzschneider, if her employment is terminated on or following the Effective Time (i) by the Company without “cause,” (ii) due to her death or “disability,” or (iii) by her for “good reason” (each as generally defined in her employment agreement), any unpaid portion of her retention award will immediately vest, subject to her execution and non-revocation of a general release of claims in a form provided by the Company, within 60 days following such termination.
 
Item 5.03.
Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.
 
The information set forth in the Introduction and in Item 2.01 of this Current Report on Form 8-K is incorporated by reference into this Item 5.03.
 
Pursuant to the terms of the Merger Agreement, at the Effective Time and by virtue of the Merger, the certificate of incorporation of the Company, as in effect immediately prior to the Effective Time, was amended and restated in its entirety (the “Amended and Restated Certificate of Incorporation”). At the Effective Time, the bylaws of Merger Sub as in effect immediately prior to the Effective Time became the bylaws of the surviving corporation.  Immediately after the Effective Time, the bylaws of the surviving corporation were amended and restated in their entirety (the “Amended and Restated Bylaws”).
 
Copies of the Amended and Restated Certificate of Incorporation and the Amended and Restated Bylaws are filed as Exhibit 3.1 and Exhibit 3.2 to this Current Report, respectively, and each is incorporated herein by reference.
 
Item 8.01.
Other Events.
 
On December 23, 2025, the Company issued a press release announcing the completion of the Merger. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.
 

Item 9.01.
Financial Statements and Exhibits.
 
(d) Exhibits.
 
Exhibit No.
 
Description of Exhibit
   
2.1
 
Agreement and Plan of Merger, dated as of September 24, 2025, by and among Integral Ad Science Holding Corp., Igloo Group Parent, Inc. and Igloo Group Acquisition Company, Inc. (incorporated by reference to Exhibit 2.1 to the Company’s Current Report on Form 8-K filed with the SEC on September 24, 2025).*
   
3.1
 
Amended and Restated Certificate of Incorporation of Integral Ad Science Holding Corp.
   
3.2
 
Bylaws of Integral Ad Science Holding Corp.
   
99.1
 
Press Release dated as of December 23, 2025.
   
104
 
Cover Page Interactive Data file (embedded within the Inline XBRL document).

*
Schedules and exhibits to the Merger Agreement have been omitted pursuant to Item 601(b)(2) of Regulation S-K. The Company hereby agrees to furnish supplementally a copy of any omitted schedule or exhibit to the SEC upon its request.


SIGNATURES
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
 
INTEGRAL AD SCIENCE HOLDING CORP.
Date: December 23, 2025
 
 
 
By: /s/ Lisa Utzschneider
 
Name: Lisa Utzschneider
  Title: Chief Executive Officer



FAQ

What happened to Integral Ad Science Holding Corp. (IAS) in this transaction?

Integral Ad Science Holding Corp. completed a merger in which Igloo Group Acquisition Company, Inc. was merged into IAS, and IAS survived as a wholly owned subsidiary of Igloo Group Parent, Inc., an affiliate of investment funds managed by Novacap.

How much are IAS shareholders receiving per share in the Novacap acquisition?

At the Effective Time of the merger, each outstanding share of IAS common stock (other than excluded and appraisal shares) was cancelled and converted into the right to receive $10.30 in cash per share, without interest.

What is the total purchase price for the Integral Ad Science (IAS) buyout?

The aggregate purchase price paid for all outstanding shares of IAS common stock (excluding owned and appraisal shares) is stated as approximately $1.6 billion.

How was the IAS acquisition financed by Igloo Group Parent and Novacap?

The funds used to complete the merger and related transactions came from a combination of equity contributions from Novacap or its affiliates, proceeds from a new Credit Agreement with Royal Bank of Canada, and available cash balances of IAS.

What happens to IAS stock on Nasdaq after the merger?

IAS notified Nasdaq that the merger was completed and requested filing of Form 25 to delist and deregister the common stock. Trading on Nasdaq was halted prior to the closing date, and IAS intends to file Form 15 to deregister the stock and suspend its reporting obligations under the Exchange Act.

How were IAS options, RSUs, and market share units treated in the merger?

In-the-money stock options were cancelled and converted into cash based on $10.30 minus the exercise price, while underwater options were cancelled for no consideration. Vested RSUs were converted into cash, and unvested RSUs became cash-based awards that vest on the original schedules. For market share units (MSUs), 50% became cash-based awards, and the remaining portion converted into restricted limited partnership units in an indirect parent entity of Parent, with vesting terms generally mirroring the prior MSUs.

What retention bonuses were granted to the IAS CEO and CFO in connection with the merger?

Lisa Utzschneider, the CEO, is entitled to a retention award of $4.0 million, and Alpana Wegner, the CFO, is entitled to $0.6 million. Each award vests 33.34% at the Effective Time, 33.33% six months after the Effective Time, and 33.33% 12 months after the Effective Time, subject to continued employment, with certain acceleration protections for the CEO on qualifying terminations.

Integral Ad Science Holding Corp.

NASDAQ:IAS

IAS Rankings

IAS Latest News

IAS Latest SEC Filings

IAS Stock Data

1.74B
101.27M
0.94%
97.72%
3.52%
Advertising Agencies
Services-computer Programming, Data Processing, Etc.
Link
United States
NEW YORK