0001950047-24-002962.txt : 20240405 0001950047-24-002962.hdr.sgml : 20240405 20240405161536 ACCESSION NUMBER: 0001950047-24-002962 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20240405 DATE AS OF CHANGE: 20240405 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: 24826706 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: Edmond Landon CENTRAL INDEX KEY: 0001991399 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 144 1 primary_doc.xml 144 0001991399 XXXXXXXX LIVE 0001835830 KLAVIYO INC 001-41806 125 Summer Street, 6th Floor Boston MA 02110 (617)213-1788 LANDON RAMON EDMOND Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

3545 86356.20 64329482 04/05/2024 NYSE Common 11/15/2023 Restricted Stock Units Issuer N 3545 11/15/2023 N/A N 10b5-1 Sales for LANDON RAMON EDMOND

125 Summer Street, 6th Floor Boston MA 02110

Common 04/02/2024 28613 713646.52 04/05/2024 11/17/2023 /s/ Landon Ramon Edmond