0001872871-23-000002.txt : 20230420 0001872871-23-000002.hdr.sgml : 20230420 20230419173615 ACCESSION NUMBER: 0001872871-23-000002 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20230331 FILED AS OF DATE: 20230420 DATE AS OF CHANGE: 20230419 EFFECTIVENESS DATE: 20230420 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: 23830889 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 03-31-2023 03-31-2023 SUMMIT PARTNERS L P

222 BERKELEY STREET 18TH FLOOR BOSTON MA 02116

13F HOLDINGS REPORT 028-11703 N ADAM H. HENNESSEY (617) 824-1000 /S/ ADAM H. HENNESSEY BOSTON MA 04-19-2023 0 10 1383750088 false INFORMATION TABLE 2 table.xml DATA TABLE 8X8, INC. COM 282914100 717069 171959 SH SOLE 171959 0 0 A10 NETWORKS, INC. COM 002121101 60068516 3877890 SH SOLE 3877890 0 0 A K A BRANDS HLDG CORP COM 00152K101 38377588 71069608 SH SOLE 71069608 0 0 CASA SYSTEMS, INC. COM 14713L102 43338090 34124480 SH SOLE 34124480 0 0 ENGAGESMART COMMON STOCK 29283F103 481345730 25004973 SH SOLE 25004973 0 0 JAMF HOLDINGS CORP COM 47074L105 86911899 4475381 SH SOLE 4475381 0 0 LIFESTANCE HEALTH GROUP INC. COM 53228F101 339808843 45734703 SH SOLE 45734703 0 0 MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC. COM 55405Y100 3065105 43268 SH SOLE 43268 0 0 MARKFORGED COM 57064N102 13946235 14527328 SH SOLE 14527328 0 0 SOLO BRANDS, INC. COM CL A 83425V104 316171013 44034960 SH SOLE 44034960 0 0