SUMMIT PARTNERS L P
BOSTON, MA · CIK 830588 · 13F filing filed 2022-11-04
SEC-registered investment adviser since 2005 · limited partnership
- Assets managed$42.0bn
- Staff218 · 118 in investment roles
- Main clients (by assets)Private funds 100%
- Private funds87 · $42.0bn gross assets
- Websitesummitpartners.com
- Form ADV · 2026-08-20SEC adviser record
- Legal entitySUMMIT PARTNERS, L.P. (US)
$1.4bn
reported value
11positions
100.0%in top 10
—no comparable previous quarter
Holdings, Q3 2022
The small lines show how much was held over the last 4 quarters (adjusted for stock splits).
| Security | Value | Change |
|---|---|---|
| ENGAGESMART INC ESMT | $557.1m38.75% | — |
| LIFESTANCE HEALTH GROUP INC LFST | $302.8m21.06% | — |
| SOLO BRANDS INC COM CL A | $167.3m11.64% | — |
| CASA SYS INC COM | $106.8m7.43% | — |
| A K A BRANDS HLDG CORP COM | $101.0m7.03% | — |
| JAMF HLDG CORP JAMF | $99.2m6.90% | — |
| A10 NETWORKS INC ATEN | $71.4m4.96% | — |
| MARKFORGED HOLDING CORPORATI COM | $28.8m2.00% | — |
| MACOM TECH SOLUTIONS HLDGS I MTSI | $2.1m0.15% | — |
| QUALTRICS INTL INC COM CL A | $713.0k0.05% | — |
| 8X8 INC NEW EGHT | $593.0k0.04% | — |
Stakes above 5%
Companies where this manager has reported owning more than 5% of a class of shares, on Schedule 13D (may seek influence) or 13G (passive): its latest filing for each, from 19 Dec 2024 on.
| Company | Stake |
|---|---|
| KLAVIYO INC KVYO · 13G · filed 2025-11-13 | 12.0%≈ $284.7m |
| LIFESTANCE HEALTH GROUP INC LFST · 13G · filed 2026-08-11 | 6.1%≈ $249.7m |