SUMMIT PARTNERS L P Long-Term Concentrated

Location: Boston, MA

CIK: 0000830588 · Show all filings

Period: Q1 2026 (← Previous) (Next →)

Filing Date: May 8, 2026

Total Value: $670M (100.0% shares, 0.0% debt)

Holdings (7)

KVYO KLAVIYO INC 54.7%

Value $367M Shares 18,852,778 Est. Cost $34.31 Unrealized -33.5%

LFST LIFESTANCE HEALTH GROUP INC 27.8%

Value $186M Shares 29,209,776 Est. Cost $26.42 Unrealized -73.0%

AKA A K A BRANDS HLDG CORP 9.3%

Value $62.43M Shares 6,053,693 Est. Cost $10.11 Unrealized +11.2%

AVAH AVEANNA HEALTHCARE HLDGS INC 5.2%

Value $35.08M Shares 5,451,422 Est. Cost $5.08 Unrealized +62.4%

MTSI MACOM TECH SOLUTIONS HLDGS I 1.6%

Value $10.94M Shares 49,273 Est. Cost $54.71 Unrealized +304.0%

ATEN A10 NETWORKS INC 0.7%

Value $4.626M Shares 200,065 Est. Cost $12.64 Unrealized +45.5%

SBDS SOLO BRANDS INC 0.6%

Value $4.139M Shares 1,100,870 Est. Cost $14.49 Unrealized -54.9%

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
KVYO	KLAVIYO INC	18,852,778	$367M	54.7%	$34.31	-33.5%	COM SER A	49845K101
LFST	LIFESTANCE HEALTH GROUP INC	29,209,776	$186M	27.8%	$26.42	-73.0%	COM	53228F101
AKA	A K A BRANDS HLDG CORP	6,053,693	$62.43M	9.3%	$10.11	+11.2%	COM SHS	00152K200
AVAH	AVEANNA HEALTHCARE HLDGS INC	5,451,422	$35.08M	5.2%	$5.08	+62.4%	COM	05356F105
MTSI	MACOM TECH SOLUTIONS HLDGS I	49,273	$10.94M	1.6%	$54.71	+304.0%	COM	55405Y100
ATEN	A10 NETWORKS INC	200,065	$4.626M	0.7%	$12.64	+45.5%	COM	002121101
SBDS	SOLO BRANDS INC	1,100,870	$4.139M	0.6%	$14.49	-54.9%	COM CL A NEW	83425V203