0001961863-24-000266.txt : 20240816 0001961863-24-000266.hdr.sgml : 20240816 20240816175815 ACCESSION NUMBER: 0001961863-24-000266 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20240816 DATE AS OF CHANGE: 20240816 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Klaviyo, Inc. CENTRAL INDEX KEY: 0001835830 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-PREPACKAGED SOFTWARE [7372] ORGANIZATION NAME: 06 Technology IRS NUMBER: 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: 241217793 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: Summit Partners Co-Invest (Kiwi), LP CENTRAL INDEX KEY: 0001830877 ORGANIZATION NAME: IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 BUSINESS ADDRESS: STREET 1: 222 BERKELEY STREET, 18TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: (617) 824-1000 MAIL ADDRESS: STREET 1: 222 BERKELEY STREET, 18TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 144 1 primary_doc.xml 144 0001830877 XXXXXXXX LIVE 0001835830 Klaviyo, Inc. 001-41806 125 SUMMER STREET, FLOOR 6 BOSTON MA 02110 800-338-1744 Summit Partners Co-Invest (Kiwi), LP Director 10% Stockholder Klaviyo, Inc. Class A Merrill Lynch

555 California Street Suite 1800 San Francisco MA 94104

36442 1129702.00 72592767 08/16/2024 NYSE Klaviyo, Inc. Class A 11/06/2020 Private Placement Issuer N 36442 11/06/2020 Cash Y 08/16/2024 Adam Hennessey