FALSE000183583000018358302025-09-252025-09-25
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
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FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
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Date of Report (Date of earliest event reported): September 25, 2025
Klaviyo, Inc.
(Exact name of registrant as specified in its charter)
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Delaware (State or other jurisdiction of incorporation or organization) | 001-41806 (Commission File Number) | 46-0989964 (IRS Employer Identification Number) |
125 Summer Street, 6th Floor, Boston, MA | 02110 |
(Address of Principal Executive Offices) | (Zip Code) |
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(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:
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☐ | 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)) |
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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 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 7.01 - Regulation FD Disclosure
On September 25, 2025, Klaviyo, Inc. (the “Company”) posted to its investor relations website at https://investors.klaviyo.com an investor presentation used in the Company’s September 25, 2025 Investor Day event, including information regarding the Company’s business strategy, market opportunity, financial performance and guidance, and long-term outlook, among other things.
The information in this Item 7.01, including Exhibit 99.1, is intended to be furnished under Item 7.01 of Form 8-K, and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or 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 filing.
Item 9.01 - Financial Statements and Exhibits
(d) Exhibits
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| Exhibit No. | Description |
| 99.1 | Klaviyo, Inc. Investor Day Presentation dated September 25, 2025. |
104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |
SIGNATURES
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.
Date: September 25, 2025
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KLAVIYO, INC. |
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By: | /s/ Amanda Whalen |
Name: | Amanda Whalen |
Title: | Chief Financial Officer
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