IAS 8-K: Q3 2025 results press release furnished as Exhibit 99.1

Rhea-AI Filing Summary

Integral Ad Science Holding Corp. (IAS) furnished an update on its recent performance. The company announced it issued a press release with financial results for the quarter ended September 30, 2025.

The press release is provided as Exhibit 99.1 under Item 2.02 and is furnished—not deemed filed—under the Exchange Act. No additional financial details are included in this notice.

8-K Event Classification

2 items: 2.02, 9.01

2 items

Item 2.02 Results of Operations and Financial Condition Financial

Disclosure of earnings results, typically an earnings press release or preliminary financials.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Understanding 8-K Material Events →

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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): November 4, 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 (Commission File Number)			83-0731995 (IRS Employer Identification No.)
12 E 49th Street, 20th Floor New York, NY						10017
(Address of principal executive offices)						(Zip Code)
(646) 278-4871
(Registrant's telephone number, including area code)
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. ☐

Item 2.02. Results of Operations and Financial Condition.

On November 4, 2025, Integral Ad Science Holding Corp. issued a press release announcing its financial results for the quarter ended September 30, 2025. A copy of the press release is furnished herewith as Exhibit 99.1.

The information contained in this Item 2.02 and in Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities under that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01. Financial Statements and Exhibits

(d) Exhibits.

Exhibit No.						Description of Exhibit
99.1						Press Release dated November 4, 2025
104						Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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.

Date: November 4, 2025

INTEGRAL AD SCIENCE HOLDING CORP.
By:			/s/ Alpana Wegner
Name:			Alpana Wegner
Title:			Chief Financial Officer (Principal Financial Officer)

FAQ

What did IAS (NASDAQ: IAS) announce in this 8-K?

IAS furnished a press release announcing financial results for the quarter ended September 30, 2025.

Where can I find IAS’s Q3 2025 results?

They are included in the press release furnished as Exhibit 99.1.

Is the IAS press release considered filed with the SEC?

No. It is furnished under Item 2.02 and is not deemed filed for Section 18 purposes.

What period does IAS’s update cover?

The quarter ended September 30, 2025.

What exhibits accompany the 8-K?

Exhibit 99.1 (press release) and Exhibit 104 (Cover Page Interactive Data File).

What is IAS’s trading information?

Common stock, ticker IAS, listed on the Nasdaq Global Select Market.