SUMMIT PARTNERS L P

Est. AUM

$670.2M

13F long equity, this entity only

Positions

Period

Mar 2026 (Q1)

SEC EDGAR

Mar 2026 (Q1)

#	Issuer	Class	Value	Shares	% Portfolio	Discretion
1	KLAVIYO INC	COM SER A	$366.9M	18852778	54.74%	SOLE
2	LIFESTANCE HEALTH GROUP INC	COM	$186.1M	29209776	27.76%	SOLE
3	A K A BRANDS HLDG CORP	COM SHS	$62.4M	6053693	9.32%	SOLE
4	AVEANNA HEALTHCARE HLDGS INC	COM	$35.1M	5451422	5.23%	SOLE
5	MACOM TECH SOLUTIONS HLDGS I	COM	$10.9M	49273	1.63%	SOLE
6	A10 NETWORKS INC	COM	$4.6M	200065	0.69%	SOLE
7	SOLO BRANDS INC	COM CL A NEW	$4.1M	1100870	0.62%	SOLE

Values in USD (reported in $thousands on 13F). Source: SEC EDGAR.