Investment adviser · CRD 158784

BLACKSTONE ALTERNATIVE SOLUTIONS L.L.C.

Investment adviser filing (IA)

NEW YORK, NY, United States · Form ADV filed Jun 24, 2026

Regulatory AUM: $20.1B
Client accounts: 54
Employees: 293
Advisory professionals: 111

Who they report serving

Form ADV · Item 5.D

Client types and their share of reported regulatory assets.

Client type	Clients	Regulatory assets	Share of AUM
Pooled investment vehicles	54	$20,081,173,362	100.0%

Filing source

Form ADV 2115236 · Jun 24, 2026 · Item 5.D

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

Private funds & service providers

19 Private funds

The count excludes feeder funds. Funds in the latest filing appear first, ordered by reported gross assets. Earlier funds retain their last reported values.

SRT I MASTER FUND L.P.Hedge Fund · Last reported Jun 24, 2026$5.21BGross asset value

Feeder funds

Fund administrator CITCO FUND SERVICES (CAYMAN ISLANDS) LIMITED GRAND CAYMAN, Cayman Islands Investor statements: Yes (provided to all investors) Related to adviser: No

Auditor DELOITTE & TOUCHE LLP GRAND CAYMAN, Cayman Islands

Custodian CITCO BANK CANADA TORONTO, Canada Related to adviser: No

Custodian MORGAN STANLEY & CO. LLC NEW YORK, New York, United States Related to adviser: No

Prime broker MORGAN STANLEY & CO. LLC NEW YORK, New York, United States

Provider details

Annual audit: Yes
Prime brokers: Yes
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

DELOITTE & TOUCHE LLP
PCAOB 1096

CITCO BANK CANADA
LEI 549300U6C5DCBKSIEB26

MORGAN STANLEY & CO. LLC
SEC 8-15869

MORGAN STANLEY & CO. LLC
CRD 8209 · SEC 8-15869

Fund details & source

Fund ID: 805-3960352082
Reported beneficial owners: 109
Minimum commitment: $100K

Form ADV 2115236 · Jun 24, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

BSOF MASTER FUND L.P.Hedge Fund · Last reported Jun 24, 2026$2.94BGross asset value

Form D fundraising filings

BSOF Master Fund L.P.

Feeder funds

Showing the first 7 feeders, with Form D links first.

BLACKSTONE STRATEGIC OPPORTUNITY FUND L.P.
BLACKSTONE STRATEGIC OPPORTUNITY OFFSHORE (E) FUND LTD.
BLACKSTONE STRATEGIC OPPORTUNITY OFFSHORE FUND LTD.
BLACKSTONE STRATEGIC OPPORTUNITY INTERMEDIATE (E) FUND L.P.
BLACKSTONE STRATEGIC OPPORTUNITY INTERMEDIATE FUND L.P.
BSOF OFFSHORE AGGREGATOR FUND L.P.
BSOF OFFSHORE BLOCKER FUND LTD.

Fund administrator CITCO FUND SERVICES (CAYMAN ISLANDS) LIMITED GRAND CAYMAN, Cayman Islands Investor statements: Yes (provided to all investors) Related to adviser: No

Auditor DELOITTE & TOUCHE LLP GRAND CAYMAN, Cayman Islands

Custodian CITCO BANK CANADA TORONTO, Canada Related to adviser: No

Custodian CITIGROUP GLOBAL MARKETS INC. NEW YORK, New York, United States Related to adviser: No

Custodian JPMORGAN CHASE BANK, N.A. NEW YORK, New York, United States Related to adviser: No

Custodian MORGAN STANLEY & CO. LLC NEW YORK, New York, United States Related to adviser: No

Custodian NATIONAL FINANCIAL SERVICES LLC BOSTON, Massachusetts, United States Related to adviser: No

Custodian NEWEDGE USA, LLC CHICAGO, Illinois, United States Related to adviser: No

Custodian THE BANK OF NEW YORK NEW YORK, New York, United States Related to adviser: No

Prime broker CITIGROUP GLOBAL MARKETS INC. NEW YORK, New York, United States

Prime broker MORGAN STANLEY & CO. LLC NEW YORK, New York, United States

Prime broker NATIONAL FINANCIAL SERVICES LLC BOSTON, Massachusetts, United States

Provider details

Annual audit: Yes
Prime brokers: Yes
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

DELOITTE & TOUCHE LLP
PCAOB 1096

CITCO BANK CANADA
LEI 549300U6C5DCBKSIEB26

CITIGROUP GLOBAL MARKETS INC.
SEC 8-8177

JPMORGAN CHASE BANK, N.A.
LEI 7H6GLXDRUGQFU57RNE97

MORGAN STANLEY & CO. LLC
SEC 8-15869 · LEI 9R7GPTSO7KV3UQJZQ078

NATIONAL FINANCIAL SERVICES LLC
SEC 8-26740

NEWEDGE USA, LLC
SEC 8-47023 · LEI AAOJVIVEV2VZFZTO3U97

CITIGROUP GLOBAL MARKETS INC.
SEC 8-177

MORGAN STANLEY & CO. LLC
CRD 8209 · SEC 8-15869

NATIONAL FINANCIAL SERVICES LLC
CRD 13041 · SEC 8-26740

Fund details & source

Fund ID: 805-4392380841
Reported beneficial owners: 161
Minimum commitment: $1M
Form D file number: 021-189401

Form ADV 2115236 · Jun 24, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

BSOF MASTER FUND II L.P.Hedge Fund · Last reported Jun 24, 2026$2.56BGross asset value

Feeder funds

MAUNA LOA CAPITAL FUND LP
STONE OAK FUND L.P.
BLACKSTONE BIG SKY FUND L.P.
BLACKSTONE LONE MOUNTAIN FUND L.P.
SFARI II BSOF L.P.