Latest SUMMIT PARTNERS L P Stock Portfolio
$670Million– No. of Holdings #7
SUMMIT PARTNERS L P Performance:
2026 Q1: -28.08%YTD: -28.08%2025: -17.58%
Performance for 2026 Q1 is -28.08%, and YTD is -28.08%, and 2025 is -17.58%.
About SUMMIT PARTNERS L P and 13F Hedge Fund Stock Holdings
On 2026-05-08, the fund reported it's updated stock portfolio. In the 13F Holdings report, SUMMIT PARTNERS L P reported an equity portfolio of $670.2 Millions as of 31 Mar, 2026.
The top stock holdings of SUMMIT PARTNERS L P are , LFST, AKA. The fund has invested 54.7% of it's portfolio in KLAVIYO INC and 27.8% of portfolio in LIFESTANCE HEALTH GROUP INC.
The fund managers got completely rid off JAMF HOLDINGS CORP (JAMF) stocks. They significantly reduced their stock positions in AVEANNA HEALTHCARE HLDGS INC (AVAH) and LIFESTANCE HEALTH GROUP INC (LFST). The fund showed a lot of confidence in some stocks as they added substantially to A10 NETWORKS INC (ATEN) and MACOM TECH SOLUTIONS HLDGS I (MTSI).
The top stock holdings of SUMMIT PARTNERS L P are , LFST, AKA. The fund has invested 54.7% of it's portfolio in KLAVIYO INC and 27.8% of portfolio in LIFESTANCE HEALTH GROUP INC.
The fund managers got completely rid off JAMF HOLDINGS CORP (JAMF) stocks. They significantly reduced their stock positions in AVEANNA HEALTHCARE HLDGS INC (AVAH) and LIFESTANCE HEALTH GROUP INC (LFST). The fund showed a lot of confidence in some stocks as they added substantially to A10 NETWORKS INC (ATEN) and MACOM TECH SOLUTIONS HLDGS I (MTSI).
SUMMIT PARTNERS L P Equity Portfolio Value
Last Reported on: 08 May, 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 -28.08% in the last quarter. In trailing 12 months, it's portfolio return was -21.38%.
- Performance
- S&P 500
New Buys
Additions
| Ticker | % Inc. |
|---|---|
| a10 networks inc | 6.78 |
| macom tech solutions hldgs i | 3.41 |
Additions to existing portfolio by SUMMIT PARTNERS L P
Reductions
| Ticker | % Reduced |
|---|---|
| aveanna healthcare hldgs inc | -27.81 |
| lifestance health group inc | -12.87 |
SUMMIT PARTNERS L P reduced stake in above stock
Sold off
| Ticker | $ Sold |
|---|---|
| jamf holdings corp | -58,224,700 |
SUMMIT PARTNERS L P got rid off the above stocks
Sector Distribution
SUMMIT PARTNERS L P has about 54.7% of it's holdings in Others sector.
- Others
- Healthcare
- Consumer Cyclical
- Technology
| Sector | % |
|---|---|
| Others | 54.7 |
| Healthcare | 33 |
| Consumer Cyclical | 9.9 |
| Technology | 2.3 |
Market Cap. Distribution
SUMMIT PARTNERS L P has about 2.3% of it's portfolio invested in the large-cap and mega-cap stocks.
- UNALLOCATED
- MID-CAP
- MICRO-CAP
- SMALL-CAP
- LARGE-CAP
| Category | % |
|---|---|
| UNALLOCATED | 54.7 |
| MID-CAP | 27.8 |
| MICRO-CAP | 9.3 |
| SMALL-CAP | 5.9 |
| LARGE-CAP | 2.3 |
Stocks belong to which Index?
About 35.9% of the stocks held by SUMMIT PARTNERS L P either belong to S&P 500 or RUSSELL 2000 index.
- Others
- RUSSELL 2000
| Index | % |
|---|---|
| Others | 64.1 |
| RUSSELL 2000 | 35.9 |
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 7 stocks in it's portfolio. proved to be the most loss making stock for the portfolio. MTSI was the most profitable stock for SUMMIT PARTNERS L P last quarter.
Last Reported on: 08 May, 2026| Ticker | Namesorted ascending | % Portfolio | Shares Held | $ Value | Type | % Change | Options | |
|---|---|---|---|---|---|---|---|---|
| AKA | a k a brands hldg corp | 9.31 | 6,053,690 | 62,426,300 | unchanged | 0.00 | ||
| ATEN | a10 networks inc | 0.69 | 200,065 | 4,625,500 | added | 6.78 | ||
| AVAH | aveanna healthcare hldgs inc | 5.24 | 5,451,420 | 35,079,900 | reduced | -27.81 | ||
| DTC | solo brands inc | 0.62 | 1,100,870 | 4,139,270 | unchanged | 0.00 | ||
| JAMF | jamf holdings corp | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| LFST | lifestance health group inc | 27.76 | 29,209,800 | 186,066,000 | reduced | -12.87 | ||
| MTSI | macom tech solutions hldgs i | 1.63 | 49,273 | 10,942,100 | added | 3.41 | ||
| klaviyo inc | 54.74 | 18,852,800 | 366,875,000 | unchanged | 0.00 | |||