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Klaviyo director plans sale of 2,328 shares

Director Susan St. Ledger has filed a Form 144 to potentially sell 2,328 Klaviyo Series A shares under Rule 144 through Fidelity Brokerage Services LLC.

(Neutral)
(Neutral)
Form Type
144

Rhea-AI Filing Summary

Klaviyo, Inc. (KVYO) is the issuer for a proposed sale of its Series A common stock under Rule 144 by director Susan St. Ledger. The notice covers 2,328 shares, with an aggregate market value of $37,085.04, to be sold through Fidelity Brokerage Services LLC on or about September 11, 2026 on the NYSE. The Series A shares outstanding are listed as 126,937,933 shares, a baseline figure, not the amount being sold.

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Shares to be sold 2,328 shares Series A shares covered by the Form 144 notice for Susan St. Ledger
Aggregate market value of shares to be sold $37,085.04 Value of the 2,328 Series A shares proposed for sale
Series A shares outstanding 126,937,933 shares Outstanding Klaviyo, Inc. Series A shares noted in the Form 144
Approximate date of sale September 11, 2026 Expected start date for the Rule 144 sale on the NYSE
Acquisition date of securities June 9, 2026 Date the restricted stock vested as compensation from the issuer
Issuer phone number 800-338-1744 Contact phone number for Klaviyo, Inc.
Rule 144 regulatory
"See the definition of "person" in paragraph (a) of Rule 144."
Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.
restricted stock vesting financial
"Series A | 06/09/2026 | Restricted Stock Vesting | Issuer"
Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.
Form 144 regulatory
"144: Filer Information"
Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.
attorney-in-fact regulatory
"as attorney-in-fact for Susan St. Ledger."
An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

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

What transaction is disclosed for KVYO in this Form 144?

The filing discloses a proposed sale under Rule 144 by director Susan St. Ledger of 2,328 shares of Klaviyo, Inc. Series A common stock, with an aggregate market value of $37,085.04, to be executed through Fidelity Brokerage Services LLC.

How many Klaviyo (KVYO) shares are proposed to be sold and at what value?

The notice covers 2,328 Series A shares of Klaviyo, Inc., with an aggregate market value of $37,085.04. These figures represent the amount subject to the Form 144 filing, not the company’s total outstanding shares.

Who is selling Klaviyo (KVYO) shares under this Form 144 and in what capacity?

The securities are to be sold for the account of Susan St. Ledger, identified as a Director of Klaviyo, Inc. The Form 144 is signed by Emily Navaro as a duly authorized representative of Fidelity Brokerage Services LLC, acting as attorney-in-fact for St. Ledger.

When are the Klaviyo (KVYO) shares expected to be sold under this notice?

The approximate date of sale stated is September 11, 2026, with the shares to be sold on the NYSE. This date reflects when the seller expects to begin transactions under this Form 144 notice.

What is the origin of the Klaviyo (KVYO) shares being sold?

The filing states the securities to be sold are Series A shares acquired through Restricted Stock Vesting from the Issuer on June 9, 2026, categorized as Compensation in the Form 144 disclosure.

How many Klaviyo (KVYO) Series A shares are outstanding according to this filing?

The Form 144 lists 126,937,933 Series A shares of Klaviyo, Inc. as outstanding. This is a context figure for the company’s capital structure and is separate from the 2,328 shares proposed to be sold under this notice.

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

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Learn about SEC filing dates

144: Filer Information

144: Issuer Information

144: Securities Information



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


* 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

144: Remarks and Signature

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