<SEC-DOCUMENT>0001470831-25-000140-index.html : 20250819
<SEC-HEADER>0001470831-25-000140.hdr.sgml : 20250819
<ACCEPTANCE-DATETIME>20250819204743
ACCESSION NUMBER:		0001470831-25-000140
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250815
FILED AS OF DATE:		20250819
DATE AS OF CHANGE:		20250819

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Rowland Stephen Eric
		CENTRAL INDEX KEY:			0001639368
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41806
		FILM NUMBER:		251233605

	MAIL ADDRESS:	
		STREET 1:		1601 TRAPELO ROAD
		STREET 2:		SUITE 116
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Klaviyo, Inc.
		CENTRAL INDEX KEY:			0001835830
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		ORGANIZATION NAME:           	06 Technology
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		125 SUMMER STREET, FLOOR 6
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
		BUSINESS PHONE:		800-338-1744

	MAIL ADDRESS:	
		STREET 1:		125 SUMMER STREET, FLOOR 6
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1755650858.xml
<DESCRIPTION>FORM 4
<TEXT>
Document 1 - file: wk-form4_1755650858.html

Document 1 - RAW XML: wk-form4_1755650858.xml

</DOCUMENT>
</SEC-DOCUMENT>