Klaviyo (NYSE: KVYO) furnishes 2025 Black Friday Cyber Monday data press release

Rhea-AI Filing Summary

Klaviyo, Inc. reported that it issued a press release sharing its 2025 Black Friday Cyber Monday data. The company furnished this press release as Exhibit 99.1 in a current report, using a Regulation FD disclosure to make the information broadly available to the market. The exhibit and related disclosure are treated as furnished rather than filed under securities laws, which limits their use in certain legal contexts.

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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 (date of earliest event reported): December 2, 2025

Klaviyo, Inc.

(Exact name of registrant as specified in its charter)

___________________________________

Delaware (State or other jurisdiction of incorporation or organization)			001-41806 (Commission File Number)			46-0989964 (I.R.S. Employer Identification Number)
125 Summer Street, 6th Floor, Boston, MA						02110
(Address of Principal Executive Offices)						(Zip Code)
(617) 213-1788
(Registrant's telephone number, including area code)

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			Name of each exchange on which registered
Series A common stock, par value $0.001 per share			KVYO			New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 12b-2 of the Exchange Act.

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 7.01 - Regulation FD Disclosure.

On December 2, 2025, Klaviyo, Inc. issued a press release announcing its 2025 Black Friday Cyber Monday data.

The press release issued December 2, 2025, is furnished herewith as Exhibit 99.1. The information in this Item 7.01, including Exhibit 99.1, is being furnished and shall not be deemed filed for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liability of that Section, nor shall such information be deemed to be incorporated by reference in any registration statement or other document filed under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as otherwise stated in such filing.

Item 9.01 - Financial Statements and Exhibits

(d) The following exhibits are being filed herewith:

Exhibit No.			Description
99.1			Press Release issued by Klaviyo, Inc. dated December 2, 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, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized on this 2nd day of December, 2025.

KLAVIYO, INC.
By:			/s/ Amanda Whalen
Name:			Amanda Whalen
Title:			Chief Financial Officer

FAQ

What did Klaviyo, Inc. (KVYO) announce in this 8-K filing?

Klaviyo, Inc. announced that it issued a press release on December 2, 2025, providing its 2025 Black Friday Cyber Monday data, and furnished that release as Exhibit 99.1.

What is included as Exhibit 99.1 in Klaviyo (KVYO)'s 8-K?

Exhibit 99.1 is a press release issued by Klaviyo, Inc. dated December 2, 2025, which contains the company’s 2025 Black Friday Cyber Monday data.

Under which item did Klaviyo (KVYO) disclose its Black Friday Cyber Monday data?

Klaviyo used Item 7.01, Regulation FD Disclosure, to furnish information about its 2025 Black Friday Cyber Monday data.

Is Klaviyo (KVYO)'s Black Friday Cyber Monday press release considered filed or furnished?

The Black Friday Cyber Monday press release and related Item 7.01 information are expressly stated as being furnished, not filed, for purposes of the Securities Exchange Act of 1934.

Does the 8-K describe any financial statements or major transactions for Klaviyo (KVYO)?

The 8-K identifies exhibits under Item 9.01 but focuses on furnishing the press release with 2025 Black Friday Cyber Monday data and does not describe major transactions or detailed financial statements in the provided content.

Who signed the Klaviyo (KVYO) 8-K related to the 2025 Black Friday Cyber Monday data?

The report was signed on behalf of Klaviyo, Inc. by Amanda Whalen, the company’s Chief Financial Officer.