[144] Klaviyo, Inc. SEC Filing

Rhea-AI Filing Summary

KVYO: A selling stockholder filed a Form 144 notice for the proposed sale of 7,105 shares of common stock, with an aggregate market value of $173,646.20. The approximate sale date is 10/15/2025, and the broker listed is Morgan Stanley Smith Barney LLC Executive Financial Services on the NYSE.

The shares to be sold were acquired as Restricted Stock Units on 08/15/2025 in the amount of 7,105. The notice also lists recent 10b5-1 sales for Stephen Rowland, including 7,105 shares on 08/18/2025 for gross proceeds of $223,528.27 and 7,105 shares on 09/15/2025 for $226,542.59. Shares outstanding were 116,897,730.

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
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	7105	173646.20	116897730	10/15/2025	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 *
Common	08/15/2025	Restricted Stock Units	Issuer			7105	08/15/2025	N/A

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for STEPHEN ROWLAND 125 Summer Street, 6th Floor Boston MA 02110	Common	09/15/2025	7105	226542.59
10b5-1 Sales for STEPHEN ROWLAND 125 Summer Street, 6th Floor Boston MA 02110	Common	08/18/2025	7105	223528.27

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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 did KVYO file in this notice?

Form 144 for a proposed sale of 7,105 shares of common stock.

Who is associated with the recent sales noted for KVYO?

The filing lists 10b5-1 sales for Stephen Rowland.

When is the approximate sale date in the Form 144?

The approximate date of sale is 10/15/2025.

Which broker is named for the KVYO sale?

Morgan Stanley Smith Barney LLC Executive Financial Services, New York.

On which exchange are the KVYO shares listed for this sale?

The filing names the NYSE.

How were the shares to be sold acquired?

They were acquired as Restricted Stock Units on 08/15/2025 in the amount of 7,105.

How many KVYO shares are outstanding as referenced?

Shares outstanding were 116,897,730.