<SEC-DOCUMENT>0001950047-25-002435-index.html : 20250411 <SEC-HEADER>0001950047-25-002435.hdr.sgml : 20250411 <ACCEPTANCE-DATETIME>20250411161655 ACCESSION NUMBER: 0001950047-25-002435 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20250411 DATE AS OF CHANGE: 20250411 SUBJECT COMPANY: 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 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-41806 FILM NUMBER: 25832309 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 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Whalen Amanda CENTRAL INDEX KEY: 0001991131 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: KLAVIYO, INC. STREET 2: 125 SUMMER STREET, 6TH FLOOR CITY: BOSTON STATE: MA ZIP: 02110 </SEC-HEADER> <DOCUMENT> <TYPE>144 <SEQUENCE>1 <FILENAME>primary_doc.xml <TEXT> Document 1 - file: primary_doc.html
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