Filed: 2/6/2026ACC: 0000830588-26-000001
📋 What this filing means
SUMMIT PARTNERS L P filed this quarterly 13F‑HR report disclosing 8 equity positions with a total reported market value of $1.05B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
8
Positions
$1.05B
Total AUM (reported)
71.79M
Total Shares
Allocation by class
COM SER A$612.15M58.2%
COM$367.41M35.0%
COM SHS$64.77M6.2%
COM CL A NEW$6.66M0.6%
Portfolio Concentration
Top 3$912.94M86.9%
4–10$138.06M13.1%
Top 3 weight
86.9%
Top 10 weight
100.0%
Voting Authority Distribution
Total shares with voting rights: 71.79M
Sole
Full voting authority
71.79M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole8
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings8
Rows:
KLAVIYO, INC. (2)
SOLEShares18.85M
TypeSH
Market value$612.15M
58.24%
Sole
18.85M
Shared
0.00
None
0.00
LIFESTANCE HEALTH GROUP INC.
SOLEShares33.52M
TypeSH
Market value$236.01M
22.46%
Sole
33.52M
Shared
0.00
None
0.00
A K A BRANDS HLDG CORP (1)
SOLEShares6.05M
TypeSH
Market value$64.77M
6.16%
Sole
6.05M
Shared
0.00
None
0.00
AVEANNA HEALTHCARE HLDGS INC
SOLEShares7.55M
TypeSH
Market value$61.70M
5.87%
Sole
7.55M
Shared
0.00
None
0.00
JAMF HOLDINGS CORP
SOLEShares4.48M
TypeSH
Market value$58.22M
5.54%
Sole
4.48M
Shared
0.00
None
0.00
MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC.
SOLEShares47.65K
TypeSH
Market value$8.16M
0.78%
Sole
47.65K
Shared
0.00
None
0.00
SOLO BRANDS INC (3)
SOLEShares1.10M
TypeSH
Market value$6.66M
0.63%
Sole
1.10M
Shared
0.00
None
0.00
A10 NETWORKS, INC.
SOLEShares187.37K
TypeSH
Market value$3.31M
0.32%
Sole
187.37K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
KLAVIYO, INC. (2)SOLE | COM SER A | 18.85M | SH | $612.15M 58.24% | 18.85M | 0.00 | 0.00 |
LIFESTANCE HEALTH GROUP INC.SOLE | COM | 33.52M | SH | $236.01M 22.46% | 33.52M | 0.00 | 0.00 |
A K A BRANDS HLDG CORP (1)SOLE | COM SHS | 6.05M | SH | $64.77M 6.16% | 6.05M | 0.00 | 0.00 |
AVEANNA HEALTHCARE HLDGS INCSOLE | COM | 7.55M | SH | $61.70M 5.87% | 7.55M | 0.00 | 0.00 |
JAMF HOLDINGS CORPSOLE | COM | 4.48M | SH | $58.22M 5.54% | 4.48M | 0.00 | 0.00 |
MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC.SOLE | COM | 47.65K | SH | $8.16M 0.78% | 47.65K | 0.00 | 0.00 |
SOLO BRANDS INC (3)SOLE | COM CL A NEW | 1.10M | SH | $6.66M 0.63% | 1.10M | 0.00 | 0.00 |
A10 NETWORKS, INC.SOLE | COM | 187.37K | SH | $3.31M 0.32% | 187.37K | 0.00 | 0.00 |