Landon Edmond - 15 Dec 2025 Form 4 Insider Report for Klaviyo, Inc. (KVYO)

Role: Chief Legal Officer
Signature: /s/ Landon Edmond
Issuer symbol: KVYO
Transactions as of: 15 Dec 2025
Net transactions value: $0
Form type: 4
Filing time: 17 Dec 2025, 17:22:33 UTC
Previous filing: 21 Nov 2025
Next filing: 19 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Edmond Landon	Chief Legal Officer	C/O KLAVIYO, INC., 125 SUMMER STREET, 6TH FLOOR, BOSTON	/s/ Landon Edmond	17 Dec 2025	0001991399

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	KVYO	Series A Common Stock	Gift	$0	-8,400	-2.2%	$0.000000	368,072	15 Dec 2025	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents a bona fide gift of 8,400 shares of stock from the Reporting Person to a donor-advised fund.
F2	Consists of (i) 114,474 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.