KVYO Form 144 Filed — 145,768 Series A Shares Scheduled for Sale

Rhea-AI Filing Summary

Klaviyo, Inc. filed a Form 144 reporting a proposed sale of 145,768 shares of its Series A common stock, with an aggregate market value of $4,839,497.60. The shares are scheduled for sale on 09/08/2025 on the NYSE. The filer acquired 1,983,585 shares on 09/20/2023 in pre-IPO transactions from Klaviyo, Inc., and indicates the purchase was paid with equity interests in the issuer. No securities of the issuer were reported sold by the filer in the past three months. The filing includes the required representation that the seller is not aware of undisclosed material adverse information about the company.

Positive

• Regulatory compliance: The filer provided required Rule 144 disclosure details, including broker, sale date, and acquisition history.
• No recent sales: The filing states there were no securities sold by the filer in the past three months.

Negative

• Insider sale disclosed: The filer plans to sell 145,768 shares valued at $4,839,497.60, which represents insider liquidity that investors may view negatively.

Insights

Securities Analyst

TL;DR Insider-originated pre-IPO shares worth about $4.84M are slated for sale; disclosure follows Rule 144 requirements.

The filing shows a planned resale of 145,768 Series A shares on the NYSE valued at $4,839,497.60. These shares were acquired in a pre-IPO transaction on 09/20/2023, when the filer received 1,983,585 shares. The notice indicates payment was made via equity interests in the issuer and that there were no reported sales in the prior three months. From an investor-impact perspective, this is a routine Rule 144 resale notice that provides transparency about insider liquidity but does not, by itself, change the company’s financials or operations.

Corporate Governance Expert

TL;DR Form 144 is a standard regulatory disclosure of an insider sale; compliance reduces regulatory risk but signals insider liquidity.

The document reflects compliance with resale disclosure obligations under Rule 144: it specifies the class, broker (Barclays Capital Inc.), planned sale date, and acquisition details showing pre-IPO origin. The filer affirms lack of undisclosed material adverse information, which is a required representation. For governance review, the filing documents an insider exercising liquidity options; absent additional context on timing or volume relative to total holdings, it is a neutral governance event but merits monitoring if further insider sales occur.

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	145768	4839497.60	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.			1983585	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 Klaviyo's (KVYO) Form 144 report?

The Form 144 reports a proposed sale of 145,768 Series A shares valued at $4,839,497.60, to be sold on 09/08/2025 on the NYSE.

When and how were the shares being sold originally acquired?

The filer acquired 1,983,585 shares in a pre-IPO transaction on 09/20/2023, paid with equity interests in the issuer.

Which broker is handling the proposed sale on the Form 144?

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

Were there any securities sold by the filer in the past three months?

No. The filing states "Nothing to Report" under securities sold during the past three months.

Does the filer assert knowledge of undisclosed material information?

By signing the notice, the filer represents they do not know any material adverse information about the issuer that has not been publicly disclosed.