SUMMIT PARTNERS L P — 13F Holdings

2026 Q1  ·  8 Positions

2026 Q1 Portfolio Activity

In 2026 Q1, SUMMIT PARTNERS L P maintained a portfolio of 8 distinct positions. They heavily accumulated shares in A10 NETWORKS INC, increasing the position by 6.8%. Conversely, SUMMIT PARTNERS L P completely exited their position in JAMF HOLDINGS CORP.
Position History hover any row below to update
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SUMMIT PARTNERS L P Boston, MA Private Equity / Growth Equity AUM $670M
Fund Overview SEC EDGAR
PCA Score Concentration Risk
Risk ENB
To Excel To CSV
Total Positions
8
Quarter
2026 Q1
Top Holding
KVYO (54.7%)
Top 10 Concentration
100.0%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-8 of 8
Stock History Sector / Type Port % Prev % Rank / Prev Conviction
Freshness
Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
KVYO
KLAVIYO INC
Technology 54.74% 58.24% #1
Prev: #1
7.0
—
no change no change
P
S
18,852,778 $366,875,060 2023 Q3 13F Filing 2026-03-31 2026-05-08
LFST
LIFESTANCE HEAL...
Healthcare 27.76% 22.46% #2
Prev: #2
6.0
—
-4,314,939 -12.9%
P
S
29,209,776 $186,066,273 2021 Q2 13F Filing 2026-03-31 2026-05-08
AKA
A K A BRANDS HL...
Consumer Cyclical 9.32% 6.16% #3
Prev: #3
5.7
—
no change no change
P
S
6,053,693 $62,426,288 2021 Q3 13F Filing 2026-03-31 2026-05-08
AVAH
AVEANNA HEALTHC...
Healthcare 5.23% 5.87% #4
Prev: #4
2.6
—
-2,100,000 -27.8%
P
S
5,451,422 $35,079,901 2025 Q2 13F Filing 2026-03-31 2026-05-08
MTSI
MACOM TECH SOLU...
Technology 1.63% 0.78% #5 1
Prev: #6
1.7
—
1,623 3.4%
P
S
49,273 $10,942,055 2012 Q1 13F Filing 2026-03-31 2026-05-08
ATEN
A10 NETWORKS IN...
Technology 0.69% 0.32% #6 2
Prev: #8
2.3
—
12,698 6.8%
P
S
200,065 $4,625,503 2014 Q2 13F Filing 2026-03-31 2026-05-08
SBDS
SOLO BRANDS INC
Consumer Cyclical 0.62% 0.63% #7
Prev: #7
1.2
—
no change no change
P
S
1,100,870 $4,139,271 2025 Q3 13F Filing 2026-03-31 2026-05-08
JAMF
JAMF HOLDINGS C...
Unknown 0.00% 5.54%
Sold All 😨
(Was: #5)
 0.0
—
-4,475,381 -100.0%
CLOSED
 — $— 2020 Q3 13F Filing 2026-03-31 2026-05-08
Showing 1-8 of 8 holdings

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