Blackstone Alternative Solutions L.L.C. is an SEC-registered investment adviser based in New York, NY that reports managing 40 hedge funds on Form ADV. It reports $20.1 billion in regulatory assets under management. Its private funds, of all types, hold $40.0 billion in gross assets.
- Regulatory assets under management
- $20.1 billionForm ADV Item 5.F
- Gross assets of private funds
- $40.0 billionAll private fund types, Form ADV
- Hedge funds managed
- 4040 private funds in total
- Employees
- 293Form ADV Item 5.A
- Registration
- SEC-registered adviserCRD 158784
- Latest Form ADV
- 10/15/2026Disciplinary disclosures: none reported
Hedge funds filing Form D (10)
Fund
First sale
Raised
Investors
Minimum
YTD performance
BSOF Parallel Onshore Fund L.P.
New York, NY
First saleOct 2017
Raised$3.8B
Investors42
MinimumNone set
YTD performanceNot reported
BSOF SRT Parallel Onshore Fund L.P.
New York, NY
First saleMar 2024
Raised$1.2B
Investors26
MinimumNone set
YTD performanceNot reported
Blackstone Strategic Opportunity Fund L.P.
New York, NY
First saleJul 2011
Raised$1.1B
Investors59
MinimumNone set
YTD performanceNot reported
BSOF Parallel Offshore Fund Ltd.
Grand Cayman, Cayman IslandsOffshore
First saleOct 2017
Raised$825M
Investors24
Minimum$100K
YTD performanceNot reported
Blackstone Strategic Opportunity Offshore (E) Fund Ltd.
Camana Bay, Grand Cayman, Cayman IslandsOffshore
First saleSep 2013
Raised$632M
Investors5
Minimum$100K
YTD performanceNot reported
Stone Oak Fund L.P.
New York, NY
First saleOct 2018
Raised$582M
Investors2
MinimumNone set
YTD performanceNot reported
Mauna Loa Capital Fund LP
New York, NY
First saleJan 2021
Raised$326M
Investors2
MinimumNone set
YTD performanceNot reported
Blackstone Strategic Opportunity Offshore Fund Ltd.
Camana Bay, Grand Cayman, Cayman IslandsOffshore
First saleJul 2011
Raised$271M
Investors16
Minimum$100K
YTD performanceNot reported
Blackstone Aqua Fund L.P.
New York, NY
First saleFeb 2020
Raised$270M
Investors26
MinimumNone set
YTD performanceNot reported
BSOF SRT Parallel Offshore Fund Ltd.
Camana Bay, Grand Cayman, Cayman IslandsOffshore
First saleJun 2024
Raised$231M
Investors11
Minimum$100K
YTD performanceNot reported
Matched to this firm by the fund names and related persons in each Form D. The list may be incomplete.
Private funds reported on Form ADV (10)
Fund
Gross assets
Minimum
Owners
Adviser
Bsof Parallel Master Fund L.P.
Cayman IslandsHedge fund
Gross assets$4.8B
Minimum$1.0M
Owners96
AdviserBlackstone Alternative Solutions L.L.C.
Bsof Master Fund L.P.
Cayman IslandsHedge fund
Gross assets$2.9B
Minimum$1.0M
Owners142
AdviserBlackstone Alternative Solutions L.L.C.
Bsof Master Fund II L.P.
Cayman IslandsHedge fund
Gross assets$2.4B
Minimum$5.0M
Owners13
AdviserBlackstone Alternative Solutions L.L.C.
Bsof Srt I Offshore LP
Cayman IslandsHedge fund
Gross assets$605M
MinimumNone set
Owners8
AdviserBlackstone Alternative Solutions L.L.C.
Bsof Srt I Offshore Subsidiary L.P.
Cayman IslandsHedge fund
Gross assets$503M
MinimumNone set
Owners1
AdviserBlackstone Alternative Solutions L.L.C.
Blackstone Aqua Master Sub-Fund, a Sub-Fund of Blackstone Global Master Fund ICAV
IrelandHedge fund
Gross assets$456M
Minimum$5.0M
Owners15
AdviserBlackstone Alternative Solutions L.L.C.
SRT I Master Fund L.P.
Cayman IslandsHedge fund
Gross assets$321M
Minimum$100K
Owners58
AdviserBlackstone Alternative Solutions L.L.C.
Bsof Srt I LP
Delaware, United StatesHedge fund
Gross assets$271M
MinimumNone set
Owners1
AdviserBlackstone Alternative Solutions L.L.C.
Bsof Parallel Europe Master Sub-Fund 2, a Closed-Ended Sub-Fund of Blackstone Global Master Fund ICAV
IrelandHedge fund
Gross assets$197M
Minimum$100K
Owners22
AdviserBlackstone Alternative Solutions L.L.C.
52024 Srt LP
Cayman IslandsHedge fund
Gross assets$49.4M
Minimum$250M
Owners2
AdviserBlackstone Alternative Solutions L.L.C.
As reported in the adviser's Form ADV filed Nov 20, 2024. Funds also listed from Form D are shown above.
Fund vehicles: feeder funds and single-deal vehicles (19)
Fund
Gross assets
Minimum
Owners
Adviser
Bsof Parallel Offshore Fund LTD.
Cayman IslandsHedge fund
Gross assets$4.0B
Minimum$100K
Owners60
AdviserBlackstone Alternative Solutions L.L.C.
Bsof Parallel Onshore Fund L.P.
Delaware, United StatesHedge fund
Gross assets$3.0B
Minimum$100K
Owners24
AdviserBlackstone Alternative Solutions L.L.C.
Blackstone Strategic Opportunity Offshore Fund LTD.
Cayman IslandsHedge fund
Gross assets$1.7B
Minimum$5.0M
Owners67
AdviserBlackstone Alternative Solutions L.L.C.
Bsof Srt Parallel Offshore Fund LTD.
Cayman IslandsHedge fund
Gross assets$1.6B
Minimum$100K
Owners37
AdviserBlackstone Alternative Solutions L.L.C.
Bsof Srt Parallel Onshore Fund L.P.
Delaware, United StatesHedge fund
Gross assets$1.6B
Minimum$100K
Owners20
AdviserBlackstone Alternative Solutions L.L.C.
Blackstone Strategic Opportunity Intermediate Fund L.P.
Cayman IslandsHedge fund
Gross assets$1.4B
Minimum$5.0M
Owners67
AdviserBlackstone Alternative Solutions L.L.C.
Blackstone Strategic Opportunity Fund L.P.
Delaware, United StatesHedge fund
Gross assets$1.4B
Minimum$5.0M
Owners54
AdviserBlackstone Alternative Solutions L.L.C.
Blackstone Big Sky Fund L.P.
Delaware, United StatesHedge fund
Gross assets$914M
MinimumNone set
Owners2
AdviserBlackstone Alternative Solutions L.L.C.
Blackstone Strategic Opportunity Offshore (E) Fund LTD.
Cayman IslandsHedge fund
Gross assets$447M
Minimum$5.0M
Owners10
AdviserBlackstone Alternative Solutions L.L.C.
Bsof Parallel Europe Feeder Sub-Fund 2, a Closed-Ended Sub-Fund of Blackstone Global Feeder Fund ICAV
IrelandHedge fund
Gross assets$384M
Minimum$100K
Owners22
AdviserBlackstone Alternative Solutions L.L.C.
Mauna Loa Capital Fund LP
Delaware, United StatesHedge fund
Gross assets$352M
MinimumNone set
Owners2
AdviserBlackstone Alternative Solutions L.L.C.
Blackstone Strategic Opportunity Intermediate (E) Fund L.P.
Cayman IslandsHedge fund
Gross assets$351M
Minimum$5.0M
Owners10
AdviserBlackstone Alternative Solutions L.L.C.
Stone Oak Fund L.P.
Delaware, United StatesHedge fund
Gross assets$340M
MinimumNone set
Owners2
AdviserBlackstone Alternative Solutions L.L.C.
Sfari II Bsof L.P.
Delaware, United StatesHedge fund
Gross assets$291M
MinimumNone set
Owners2
AdviserBlackstone Alternative Solutions L.L.C.
Blackstone Aqua Fund L.P.
Delaware, United StatesHedge fund
Gross assets$290M
Minimum$5.0M
Owners8
AdviserBlackstone Alternative Solutions L.L.C.
Blackstone Lone Mountain Fund L.P.
Delaware, United StatesHedge fund
Gross assets$279M
MinimumNone set
Owners2
AdviserBlackstone Alternative Solutions L.L.C.
Blackstone Aqua Feeder Sub-Fund, a Sub-Fund of Blackstone Global Feeder Fund ICAV
IrelandHedge fund
Gross assets$157M
Minimum$5.0M
Owners7
AdviserBlackstone Alternative Solutions L.L.C.
Bsof Parallel Moat Fund L.P.
Cayman IslandsHedge fund
Gross assets$18.4M
Minimum$100K
Owners2
AdviserBlackstone Alternative Solutions L.L.C.
Bsof Parallel Moat Fund II L.P.
Cayman IslandsHedge fund
Gross assets$16.6M
Minimum$100K
Owners11
AdviserBlackstone Alternative Solutions L.L.C.
Feeder funds invest through a master fund; single-deal vehicles (SPVs, co-investments, series) hold one investment.
From SEC filings. Firm data comes from the SEC's Form ADV data as of Oct 2, 2026; performance estimates come from Form 13F. AltMountain has not verified this information, and it is not an offer, solicitation or recommendation. Full disclosures