0001802661-23-000003.txt : 20231024 0001802661-23-000003.hdr.sgml : 20231024 20231024143440 ACCESSION NUMBER: 0001802661-23-000003 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20230930 FILED AS OF DATE: 20231024 DATE AS OF CHANGE: 20231024 EFFECTIVENESS DATE: 20231024 FILER: COMPANY DATA: COMPANY CONFORMED NAME: SUMMIT PARTNERS L P CENTRAL INDEX KEY: 0000830588 IRS NUMBER: 043478657 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-11703 FILM NUMBER: 231342300 BUSINESS ADDRESS: STREET 1: 222 BERKELEY STREET STREET 2: 18TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 6178241094 MAIL ADDRESS: STREET 1: 222 BERKELEY STREET STREET 2: 18TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 13F-HR 1 primary_doc.xml X0202 13F-HR LIVE false true false 0000830588 XXXXXXXX 09-30-2023 09-30-2023 SUMMIT PARTNERS L P

222 BERKELEY STREET 18TH FLOOR BOSTON MA 02116

13F HOLDINGS REPORT 028-11703 000135271 801-64273 N ADAM H. HENNESSEY (617) 824-1000 /S/ ADAM H. HENNESSEY BOSTON MA 10-17-2023 0 11 2917907734 false INFORMATION TABLE 2 table.xml DATA TABLE 8X8, INC. COM 282914100 133356 52919 SH SOLE 52919 0 0 A10 NETWORKS, INC. COM 002121101 58439736 3888206 SH SOLE 3888206 0 0 A K A BRANDS HLDG CORP COM 00152K101 29908731 68755703 SH SOLE 68755703 0 0 CASA SYSTEMS, INC. COM 14713L102 28920497 34124480 SH SOLE 34124480 0 0 ENGAGESMART COMMON STOCK 29283F103 449839464 25004973 SH SOLE 25004973 0 0 JAMF HOLDINGS CORP COM 47074L105 79035228 4475381 SH SOLE 4475381 0 0 KLAVIYO, INC. COM SER A 49845K101 1708162172 49511947 SH SOLE 49511947 0 0 LIFESTANCE HEALTH GROUP INC. COM 53228F101 314197410 45734703 SH SOLE 45734703 0 0 MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC. COM 55405Y100 3529803 43268 SH SOLE 43268 0 0 MARKFORGED COM 57064N102 21163041 14595201 SH SOLE 14595201 0 0 SOLO BRANDS, INC. COM CL A 83425V104 224578296 44034960 SH SOLE 44034960 0 0