Sunstone Master Fund, Ltd.

Sunstone Master Fund, Ltd. is reported as a hedge fund in Form ADV private-fund disclosures. The adviser is Sunstone Asset Management, based in New York, New York, United States.

General hedge fund $25M to $100M $1M to $5M minimum

$74.0Mgross assets

$3.0Mminimum

12owners

3(c)(7)exemption

Disclosure fields

Fund facts

SEC private fund ID805-6931507357

Reference ID423093

JurisdictionCayman Islands

Fund of fundsNo

Master fundYes

Feeder fundNo

Non-US ownership14%

Assets valued100%

Annual auditYes

GAAPYes

Source periodMarch 2026

Date submitted03/23/2026 05:30:43 PM

Adviser

Sunstone Asset Management

TypeRegistered investment adviser

SEC number801-133932

CRD328895

Regulatory AUM$220.2M

Compliance signals

Exempt from registration Sales limitation not marked Prime brokers reported Custodians reported

Service providers

Reported counterparties

General partners

Zhuohan Patrick Yang

Auditors

ERNST & YOUNG LTD.

Prime brokers

MORGAN STANLEY & CO. LLCJEFFERIES LLC

Custodians

MORGAN STANLEY & CO. LLCJEFFERIES LLC

Administrators

MORGAN STANLEY FUND SERVICES (CAYMAN) LTD.MORGAN STANLEY FUND SERVICES