KVYO insider files Rule 144 notices for RSU sales

Morgan Stanley Smith Barney LLC submitted Rule 144 notices disclosing restricted stock unit sales related to KVYO.

Accepted by SEC EDGAR 03/05/2026 - 04:28 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted Rule 144 notices disclosing restricted stock unit sales related to KVYO. The filing lists two 10b5-1 sales by Stephen Rowland: 7,104 shares on 12/15/2025 for $209,223.94 and 7,104 shares on 01/15/2026 for $184,700.52. The securities were originally granted as RSUs on 08/15/2024.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did the KVYO Form 144 disclose?

It discloses Rule 144 notices for RSU-derived share sales by an affiliate. The filing lists two 10b5-1 sales of 7,104 shares each on 12/15/2025 and 01/15/2026, with proceeds of $209,223.94 and $184,700.52 respectively.

Who executed the sales listed in the KVYO filing?

The sales are reported for Stephen Rowland under 10b5-1 plans. The filing attributes the transactions to Rowland with Morgan Stanley Smith Barney LLC listed as the broker and includes the sale dates and proceeds for each trade.

What type of securities were sold in the KVYO notices?

The securities sold originated from Restricted Stock Units (RSUs) granted on 08/15/2024. The Form 144 lists the RSU-derived common shares sold under 10b5-1 plans on the dates provided in the filing.

How many shares and proceeds are reported for each KVYO sale?

Each reported trade shows 7,104 shares sold. The proceeds recorded are $209,223.94 for 12/15/2025 and $184,700.52 for 01/15/2026, as listed in the filing by the broker.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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	0001639368
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Klaviyo, Inc.
SEC File Number	001-41806
Address of Issuer	125 Summer Street, 6th Floor Boston MASSACHUSETTS 02110
Phone	6172131788
Name of Person for Whose Account the Securities are To Be Sold	STEPHEN E. ROWLAND
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	Officer

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	4940	96478.20	145497436	03/05/2026	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	08/15/2024	Restricted Stock Units	Issuer			4940	08/15/2024	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	01/15/2026	7104	184700.52
10b5-1 Sales for STEPHEN ROWLAND 125 Summer Street, 6th Floor Boston MA 02110	Common	12/15/2025	7104	209223.94

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units during the period of 08/15/2024 through 2/15/2026.
Date of Notice	03/05/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/07/2025
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	/s/ Stephen Rowland
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)