Klaviyo (NYSE: KVYO) CLO sells 10,000+ shares in Jan 10b5-1 plan

Rhea-AI Filing Summary

Klaviyo, Inc. insider Edmond Landon, the Chief Legal Officer, reported planned sales of Series A Common Stock. On January 15, 2026, Landon sold 5,601 shares at a weighted average price of $26.08 and 4,399 shares at a weighted average price of $25.52, in open-market transactions coded as sales.

The filing states these trades were made under a Rule 10b5-1 trading plan adopted on August 21, 2025, which is designed to pre-schedule transactions. After these sales, Landon beneficially owned 343,882 shares, consisting of 90,284 shares of Series A Common Stock and 253,598 unvested restricted stock units that each represent the right to receive one share upon vesting and settlement.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Edmond Landon

(Last) (First) (Middle)

C/O KLAVIYO, INC.

125 SUMMER STREET, 6TH FLOOR

(Street)

BOSTON MA 02110

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Klaviyo, Inc. [ KVYO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Legal Officer

3. Date of Earliest Transaction (Month/Day/Year)
01/15/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Series A Common Stock	01/15/2026		S(1)		5,601	D	$26.08(2)	348,281	D
Series A Common Stock	01/15/2026		S(1)		4,399	D	$25.52(3)	343,882(4)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 21, 2025.

2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $25.80 to $26.73 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $25.36 to $25.68 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

4. Consists of (i) 90,284 shares of the Issuer's Series A Common Stock, par value $0.001 per share ("Series A Common Stock"), and (ii) 253,598 unvested restricted stock units awarded under the Issuer's 2023 Stock Option and Incentive Plan, each representing the contingent right to receive one share of Series A Common Stock upon vesting and settlement.

Remarks:

	/s/ Landon Edmond	01/16/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

How many Klaviyo (KVYO) shares did Chief Legal Officer Edmond Landon sell?

On January 15, 2026, Chief Legal Officer Edmond Landon sold a total of 10,000 shares of Klaviyo's Series A Common Stock, in two transactions of 5,601 and 4,399 shares.

At what prices were the KVYO shares sold by Edmond Landon?

The 5,601 shares were sold at a weighted average price of $26.08 per share, with trades between $25.80 and $26.73. The 4,399 shares were sold at a weighted average price of $25.52 per share, with trades between $25.36 and $25.68.

Were Edmond Landon’s KVYO share sales under a Rule 10b5-1 trading plan?

Yes. The filing states the transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by Edmond Landon on August 21, 2025, which pre-schedules trades.

How many Klaviyo (KVYO) shares does Edmond Landon own after these transactions?

After the reported sales, Edmond Landon beneficially owned 343,882 shares, consisting of 90,284 shares of Series A Common Stock and 253,598 unvested restricted stock units.

What do the unvested restricted stock units in the KVYO Form 4 represent?

The 253,598 unvested restricted stock units each represent a contingent right to receive one share of Klaviyo’s Series A Common Stock upon vesting and settlement under the 2023 Stock Option and Incentive Plan.

What role does Edmond Landon hold at Klaviyo (KVYO)?

In the Form 4, Edmond Landon is identified as an officer of Klaviyo, serving as the company’s Chief Legal Officer.