[144] Klaviyo, Inc. SEC Filing

Rhea-AI Filing Summary

Klaviyo, Inc. (KVYO) Form 144 notice reports a proposed sale of 1,613 shares of Series A common stock through Barclays Capital Inc. on or about 09/08/2025, with an aggregate market value of $53,551.60. The filing lists 116,897,730 shares outstanding.

The shares were originally acquired 09/20/2023 in pre-IPO transactions from Klaviyo, Inc.; the filer received 21,945 shares at that time and indicates full equity payment. No sales by the filer in the past three months are reported.

Insights

Financial Analyst

TL;DR: Small proposed sale relative to total outstanding shares; likely immaterial to market capitalization.

The notice shows a proposed disposal of 1,613 shares valued at $53,551.60 against 116,897,730 shares outstanding, indicating a de minimis transfer relative to the firm's equity base. The shares were acquired in a pre-IPO transaction on 09/20/2023 and fully paid in equity. No recent sales by the filer are reported, suggesting this is a routine Rule 144 liquidity event rather than a signal of broader insider disposition.

Corporate Governance Expert

TL;DR: Form 144 complies with Rule 144 disclosure; provides standard seller representations and broker details.

The filing includes required broker identification (Barclays Capital Inc.), acquisition history, and the filers representation about material non-public information. The documentation of acquisition via pre-IPO transaction and absence of other recent sales aligns with standard governance practices for insider sales. The filing does not indicate any unusual governance or regulatory concerns.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Series A common stock, par value $0.001 per share	Barclays Capital Inc. 745 7th Avenue New York NY 10019	1613	53551.60	116897730	09/08/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Series A common stock, par value $0.001 per share	09/20/2023	Pre-IPO transactions.	Klaviyo, Inc.			21945	09/20/2023	Equity interests in the Issuer were purchased pre-IPO.

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the KVYO Form 144 disclose about the proposed sale?

The filing discloses a proposed sale of 1,613 Series A shares through Barclays Capital Inc. on or about 09/08/2025, with aggregate value $53,551.60.

When and how were the shares being sold originally acquired?

The shares were acquired on 09/20/2023 in pre-IPO transactions from Klaviyo, Inc., totaling 21,945 shares at acquisition.

Does the filing report any sales by the filer in the past three months?

No. The section for securities sold during the past three months states Nothing to Report.

Who is the broker named in the Form 144 for this sale?

The named broker is Barclays Capital Inc., 745 7th Avenue, New York, NY 10019.

How many shares outstanding does the filing report?

The filing reports 116,897,730 shares outstanding for the class.