0001772461-21-000002.txt : 20210726 0001772461-21-000002.hdr.sgml : 20210726 20210726122054 ACCESSION NUMBER: 0001772461-21-000002 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20210630 FILED AS OF DATE: 20210726 DATE AS OF CHANGE: 20210726 EFFECTIVENESS DATE: 20210726 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: 211113243 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 13F-HR LIVE false true false 0000830588 XXXXXXXX 06-30-2021 06-30-2021 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 07-26-2021 0 5 1923477 false INFORMATION TABLE 2 table.xml A10 NETWORKS, INC. COM 002121101 107656 9560941 SH SOLE 9560941 0 0 CASA SYSTEMS, INC. COM 14713L102 302684 34124480 SH SOLE 34124480 0 0 JAMF HOLDINGS CORP COM 47074L105 150239 4475381 SH SOLE 4475381 0 0 LIFESTANCE HEALTH GROUP INC. COM 53228F101 1305949 46875407 SH SOLE 46875407 0 0 MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC. COM 55405Y100 56949 888718 SH SOLE 888718 0 0