Latest SUMMIT PARTNERS L P Stock Portfolio

$608Million | No. of Holdings #5

SUMMIT PARTNERS L P Performance

2026 Q2+6.56%

YTD-23.36%

2025-17.58%

About SUMMIT PARTNERS L P and 13F Hedge Fund Stock Holdings

On 2026-07-30, the fund reported it's updated stock portfolio. In the 13F Holdings report, SUMMIT PARTNERS L P reported an equity portfolio of $608.9 Millions as of 30 Jun, 2026. <br><br> The top stock holdings of SUMMIT PARTNERS L P are , LFST, AKA. The fund has invested 46.8% of it's portfolio in KLAVIYO INC and 41% of portfolio in LIFESTANCE HEALTH GROUP INC. <br><br> The fund managers got completely rid off AVEANNA HEALTHCARE HLDGS INC (AVAH) and SOLO BRANDS INC (DTC) stocks. They significantly reduced their stock positions in MACOM TECH SOLUTIONS HLDGS I (MTSI) and LIFESTANCE HEALTH GROUP INC (LFST).

SUMMIT PARTNERS L P Equity Portfolio Value

Last Reported on: 30 Jul, 2026

$608Million

as of Jul 30, 2026

SUMMIT PARTNERS L P Annual Return Estimates Vs S&P 500

Our best estimate is that SUMMIT PARTNERS L P made a return of 6.56% in the last quarter. In trailing 12 months, it's portfolio return was -17.46%.

Performance
S&P 500

New Buys

No new stocks were added by SUMMIT PARTNERS L P

Additions

No additions were made to existing positions by SUMMIT PARTNERS L P

Reductions

Ticker	% Reduced
macom tech solutions hldgs i	-87.81
lifestance health group inc	-20.2

SUMMIT PARTNERS L P reduced stake in above stock

Sold off

Ticker	$ Sold
aveanna healthcare hldgs inc	-35,079,900
solo brands inc	-4,139,270

SUMMIT PARTNERS L P got rid off the above stocks

Sector Distribution

SUMMIT PARTNERS L P has about 46.8% of it's holdings in Others sector.

Others
Healthcare
Consumer Cyclical
Technology

Sector	%
Others	46.8
Healthcare	41
Consumer Cyclical	10.6
Technology	1.6

Market Cap. Distribution

SUMMIT PARTNERS L P has about 0% of it's portfolio invested in the large-cap and mega-cap stocks.

UNALLOCATED
MID-CAP
MICRO-CAP

Category	%
UNALLOCATED	46.8
MID-CAP	42.2
MICRO-CAP	10.6

Stocks belong to which Index?

About 42.6% of the stocks held by SUMMIT PARTNERS L P either belong to S&P 500 or RUSSELL 2000 index.

Others
RUSSELL 2000

Index	%
Others	57.4
RUSSELL 2000	42.6

Top 5 Winners (%)		%
ATEN	a10 networks inc	61.6 %
LFST	lifestance health group inc	61.3 %
MTSI	macom tech solutions hldgs i	40.0 %
AKA	a k a brands hldg corp	3.9 %

Top 5 Winners ($)		$
LFST	lifestance health group inc	114.0 M
MTSI	macom tech solutions hldgs i	4.4 M
ATEN	a10 networks inc	2.8 M
AKA	a k a brands hldg corp	2.4 M

Top 5 Losers (%)		%
	klaviyo inc	-22.4 %

Top 5 Losers ($)		$
	klaviyo inc	-82.2 M

SUMMIT PARTNERS L P Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of SUMMIT PARTNERS L P

SUMMIT PARTNERS L P has 5 stocks in it's portfolio. proved to be the most loss making stock for the portfolio. LFST was the most profitable stock for SUMMIT PARTNERS L P last quarter.

$608.92MTotal Value

7.00Positions

30 Jul, 2026Last Reported

Current holdings of Current Stock Holdings of SUMMIT PARTNERS L P, last reported on 30 Jul, 2026. Select a row with a linked ticker to view its historical trend.
Holdingsorted ascending	% Portfolio	Shares Held	$ Value	% Change
AKA A K A Brands Hldg Corp A K A Brands Hldg CorpAKA SUMMIT PARTNERS L P's holding in A K A Brands Hldg Corp over time	10.65%	6,053,690	$64.84M 10.65%	unchanged 0 percentunchanged

ATEN A10 Networks Inc A10 Networks IncATEN SUMMIT PARTNERS L P's holding in A10 Networks Inc over time	1.23%	200,065	$7.47M 1.23%	unchanged 0 percentunchanged

AVAH Aveanna Healthcare Hldgs Inc Aveanna Healthcare Hldgs IncAVAH SUMMIT PARTNERS L P's holding in Aveanna Healthcare Hldgs Inc over time	0%	0.00	$0.00 0%	decreased 100 percentsold off

DTC Solo Brands Inc Solo Brands IncDTC SUMMIT PARTNERS L P's holding in Solo Brands Inc over time	0%	0.00	$0.00 0%	decreased 100 percentsold off

LFST Lifestance Health Group Inc Lifestance Health Group IncLFST SUMMIT PARTNERS L P's holding in Lifestance Health Group Inc over time	41%	23,310,100	$249.65M 41%	decreased 20.2 percentreduced

MTSI Macom Tech Solutions Hldgs I Macom Tech Solutions Hldgs IMTSI SUMMIT PARTNERS L P's holding in Macom Tech Solutions Hldgs I over time	0.38%	6,005	$2.28M 0.38%	decreased 87.81 percentreduced

Com Ser A Klaviyo Inc Klaviyo Inc SUMMIT PARTNERS L P's holding in Klaviyo Inc over time	46.75%	18,852,800	$284.68M 46.75%	unchanged 0 percentunchanged