Filed: 5/8/2026ACC: 0001172661-26-001623
📋 What this filing means
SUMMIT PARTNERS L P filed this quarterly 13F‑HR report disclosing 7 equity positions with a total reported market value of $670.15M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
7
Positions
$670.15M
Total AUM (reported)
60.92M
Total Shares
Allocation by class
COM SER A$366.88M54.7%
COM$236.71M35.3%
COM SHS$62.43M9.3%
COM CL A NEW$4.14M0.6%
Portfolio Concentration
Top 3$615.37M91.8%
4–10$54.79M8.2%
Top 3 weight
91.8%
Top 10 weight
100.0%
Voting Authority Distribution
Total shares with voting rights: 60.92M
Sole
Full voting authority
60.92M
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)
Sole7
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings7
Rows:
KLAVIYO INC
SOLEShares18.85M
TypeSH
Market value$366.88M
54.74%
Sole
18.85M
Shared
0.00
None
0.00
LIFESTANCE HEALTH GROUP INC
SOLEShares29.21M
TypeSH
Market value$186.07M
27.76%
Sole
29.21M
Shared
0.00
None
0.00
A K A BRANDS HLDG CORP
SOLEShares6.05M
TypeSH
Market value$62.43M
9.32%
Sole
6.05M
Shared
0.00
None
0.00
AVEANNA HEALTHCARE HLDGS INC
SOLEShares5.45M
TypeSH
Market value$35.08M
5.23%
Sole
5.45M
Shared
0.00
None
0.00
MACOM TECH SOLUTIONS HLDGS I
SOLEShares49.27K
TypeSH
Market value$10.94M
1.63%
Sole
49.27K
Shared
0.00
None
0.00
A10 NETWORKS INC
SOLEShares200.06K
TypeSH
Market value$4.63M
0.69%
Sole
200.06K
Shared
0.00
None
0.00
SOLO BRANDS INC
SOLEShares1.10M
TypeSH
Market value$4.14M
0.62%
Sole
1.10M
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
KLAVIYO INCSOLE | COM SER A | 18.85M | SH | $366.88M 54.74% | 18.85M | 0.00 | 0.00 |
LIFESTANCE HEALTH GROUP INCSOLE | COM | 29.21M | SH | $186.07M 27.76% | 29.21M | 0.00 | 0.00 |
A K A BRANDS HLDG CORPSOLE | COM SHS | 6.05M | SH | $62.43M 9.32% | 6.05M | 0.00 | 0.00 |
AVEANNA HEALTHCARE HLDGS INCSOLE | COM | 5.45M | SH | $35.08M 5.23% | 5.45M | 0.00 | 0.00 |
MACOM TECH SOLUTIONS HLDGS ISOLE | COM | 49.27K | SH | $10.94M 1.63% | 49.27K | 0.00 | 0.00 |
A10 NETWORKS INCSOLE | COM | 200.06K | SH | $4.63M 0.69% | 200.06K | 0.00 | 0.00 |
SOLO BRANDS INCSOLE | COM CL A NEW | 1.10M | SH | $4.14M 0.62% | 1.10M | 0.00 | 0.00 |