Sunstone Partners
Private Equity SEC-registered adviser
Legal name: Sunstone Partners Management, LLC
San Mateo, CA Website
AUM
$1.6B
Regulatory AUM
Private funds
8
Private Equity 8
Private fund assets
$1.1B
Gross asset value
Employees
39
Last Form D raise
Sep 2022
Most recent fund filing
From SEC Form ADV filing (filed Jul 2, 2026). View on SEC
Investment focus
As listed in industry directories; may be out of date.
- Stages
- Series A
- Geographies
- USA
People(3)
Owners and executive officers named on the firm's SEC Form ADV.
A
G
M
Funds(8)
Private funds reported on Form ADV, with amounts raised from the funds' SEC Form D filings.
| Fund | Type | Gross assets | Raised (Form D) | Investors | Last Form D | Recency |
|---|---|---|---|---|---|---|
| Sunstone Partners Executive Fund III, LP | Private Equity | $8.7M | — | — | Sep 2022 | Cold |
| Sunstone Partners Iii-Main, LP | Private Equity | $311.2M | — | — | Jul 2022 | Cold |
| Sunstone Partners Iii-A, LP | Private Equity | $106.2M | — | — | Jul 2022 | Cold |
| Sunstone Partners Executive Fund II, LP | Private Equity | $7.1M | — | — | Mar 2020 | Cold |
| Sunstone Partners II, LP | Private Equity | $360.5M | — | — | Aug 2019 | Cold |
| Sunstone Partners Ii-A, LP | Private Equity | $133.2M | — | — | Aug 2019 | Cold |
| Sunstone Partners I, LP | Private Equity | $221.8M | — | — | Oct 2015 | Cold |
| Sunstone Partners Co-Invest I, LP | Private Equity | $110K | — | — | Oct 2015 | Cold |
Board seats
Companies whose SEC Form D filings name one of this firm's people as a director, matched by name and office ZIP code.
No board seats matched from SEC filings yet.
Regulatory identifiers
- CRD number
- 305064
- SEC file number
- 801-117367
- CIK
- 1654360
Sources
- SEC Form ADV Oct 14, 2026