KVYO shareholder plans sale of 56,000 shares under Form 144

A shareholder of KVYO filed a notice to sell up to 56,000 shares of the company’s common stock through Morgan Stanley Smith Barney LLC Executive Financial Services, with an aggregate market value of $1,679,440.00.

Accepted by SEC EDGAR 12/18/2025 - 04:20 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

A shareholder of KVYO filed a notice to sell up to 56,000 shares of the company’s common stock through Morgan Stanley Smith Barney LLC Executive Financial Services, with an aggregate market value of $1,679,440.00. The shares are listed on the NYSE, and the approximate sale date disclosed is December 18, 2025.

The securities to be sold were acquired on November 15, 2025 as restricted stock units from the issuer in the same 56,000‑share amount. The filing also lists “10b5-1 Sales for AMANDA WHALEN” over the past three months: 15,000 common shares sold on November 14, 2025 for gross proceeds of $428,881.50 and 15,000 common shares sold on October 10, 2025 for $375,397.50. The table shows 137,856,147 common shares outstanding.

FAQ

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

What does the KVYO Form 144 filing disclose?

The filing discloses a planned sale of 56,000 KVYO common shares through Morgan Stanley Smith Barney LLC Executive Financial Services, with an aggregate market value of $1,679,440.00 and an approximate sale date of December 18, 2025 on the NYSE.

How many KVYO shares are planned for sale and what is their market value?

The notice covers up to 56,000 KVYO common shares with an aggregate market value of $1,679,440.00, as shown in the securities information table.

When were the KVYO shares to be sold acquired and how?

The 56,000 KVYO common shares to be sold were acquired on November 15, 2025 through restricted stock units from the issuer, with the same 56,000‑share amount listed as acquired on that date.

What prior KVYO share sales are reported for the past three months?

The filing lists “10b5-1 Sales for AMANDA WHALEN” showing two KVYO common stock sales: 15,000 shares on November 14, 2025 for gross proceeds of $428,881.50 and 15,000 shares on October 10, 2025 for $375,397.50.

How many KVYO shares are shown as outstanding in the filing?

The securities information table lists 137,856,147 KVYO common shares as outstanding.

Which broker is handling the planned KVYO share sale and on which exchange?

The planned sale of KVYO common shares is to be executed through Morgan Stanley Smith Barney LLC Executive Financial Services, and the shares are listed for trading on the NYSE.

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	0001991131
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	AMANDA WHALEN
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	56000	1679440.00	137856147	12/18/2025	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	11/15/2025	Restricted Stock Units	Issuer			56000	11/15/2025	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 AMANDA WHALEN 125 Summer Street, 6th Floor Boston MA 02110	Common	11/14/2025	15000	428881.50
10b5-1 Sales for AMANDA WHALEN 125 Summer Street, 6th Floor Boston MA 02110	Common	10/10/2025	15000	375397.50

144: Remarks and Signature

Remarks	The securities to be sold were or will be acquired upon the vesting of restricted stock units on 11/15/2025 and 02/15/2026.
Date of Notice	12/18/2025
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	08/21/2025
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/ Amanda Whalen
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)