Hedge fund profile
Blackstone Annex Master Fund L.P.
Blackstone Annex Master Fund L.P. is reported as a hedge fund in Form ADV private-fund disclosures. The adviser is Blackstone Alternative Asset Management L.P., based in New York, New York, United States.
$2.0Bgross assets
$100Kminimum
84owners
3(c)(7)exemption
Disclosure fields
Fund facts
SEC private fund ID805-4135193975
Reference ID273532
JurisdictionCayman Islands
Fund of fundsNo
Master fundYes
Feeder fundNo
Non-US ownership60%
Assets valued100%
Annual auditYes
GAAPYes
Source periodMarch 2026
Date submitted03/30/2026 04:30:21 PM
Adviser
Blackstone Alternative Asset Management L.P.
TypeRegistered investment adviser
SEC number801-52559
CRD107580
Regulatory AUM$92.0B
Compliance signals
Registration exemption not marked Sales limitation not marked Prime brokers reported Custodians reported
Service providers
Reported counterparties
General partners
Blackstone Alternative Asset Management Associates LLC
Auditors
DELOITTE & TOUCHE LLP
Prime brokers
MORGAN STANLEY & CO. INTERNATIONAL PLCBARCLAYS CAPITAL INC.CITIGROUP GLOBAL MARKETS INC.MORGAN STANLEY & CO. LLC
Custodians
CITCO BANK CANADAMORGAN STANLEY & CO. LLCCITIGROUP GLOBAL MARKETS INC.MORGAN STANLEY & CO. INTERNATIONAL PLCBARCLAYS CAPITAL INC.
Administrators
CITCO FUND SERVICES (CAYMAN ISLANDS) LIMITED
Marketers
BLACKSTONE SECURITIES PARTNERS L.P.
Same adviser