Form D · Hedge Fund

Blackstone MG Custom Fund L.P.

New York, NY · CIK 0001571810

Offering snapshot reported Feb 27, 2026 · SEC filing

Reported sold: $316M
Investors reported: 56
Minimum accepted: $0
First sale: Mar 1, 2013

Fundraising history

Reported sold

Dates are filing dates, not cash receipt dates. Decreases are reported revisions, not evidence of withdrawals. Separate offering histories are not added together.

What changed?

Latest filing versus its linked predecessor, where available.

Reported sold$314,413,500 → $316,213,500
Reported investors55 → 56

Filing history

Scroll to see all columns →

Filed	Filing type	Reported sold	Change vs linked filing	Investors	Source
Feb 27, 2026	Amendment	$316,213,500	$1,800,000vs Feb 28, 2025	56	SEC filing
Feb 28, 2025	Amendment	$314,413,500	$8,700,000vs Mar 1, 2024	55	SEC filing
Mar 1, 2024	Amendment	$305,713,500	$10,610,000vs Mar 2, 2023	53	SEC filing
Mar 2, 2023	Amendment	$295,103,500	$15,330,000vs Mar 2, 2022	52	SEC filing
Mar 2, 2022	Amendment	$279,773,500	$0vs Mar 2, 2021	48	SEC filing
Mar 2, 2021	Amendment	$279,773,500	$1,654,000vs Mar 2, 2020	48	SEC filing
Mar 2, 2020	Amendment	$278,119,500	$61,345,000vs Mar 1, 2019	46	SEC filing
Mar 1, 2019	Amendment	$216,774,500	$40,400,000vs Mar 2, 2018	38	SEC filing
Mar 2, 2018	Amendment	$176,374,500	$1,335,000vs Mar 3, 2017	35	SEC filing
Mar 3, 2017	Amendment	$175,039,500	$12,575,000vs Mar 4, 2016	34	SEC filing
Mar 4, 2016	Amendment	$162,464,500	$29,347,000vs Mar 4, 2015	33	SEC filing
Mar 4, 2015	Amendment	$133,117,500	$19,692,000vs Mar 4, 2014	27	SEC filing
Mar 4, 2014	Amendment	$113,425,500	$34,475,500vs Mar 12, 2013	24	SEC filing
Mar 12, 2013	Initial	$78,950,000	No comparison	18	SEC filing

Offering details

Securities: Pooled investment fund
Exemptions: 06b, 3C, 3C.7
Duration over one year: Yes
Business combination: No

Sales commissions: $0
Finders' fees: $0
Form D file number: 021-193145

Source: Form D, filed Feb 27, 2026. Minimum accepted may differ from a standard advertised minimum.

Fund connections

The linked fund shows its most recently reported ADV details.

Matched by reported Form D file number

BLACKSTONE MG CUSTOM FUND L.P.

Investment adviser: BLACKSTONE ALTERNATIVE ASSET MANAGEMENT L.P.

Gross asset value: $361M
Beneficial owners: 45
ADV minimum commitment: $0

Reported in Form ADV on Aug 4, 2026. Fund assets and beneficial owners measure different things from Form D sales and investors.

Service providers

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 NEW YORK, New York, United States

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

Marketer BLACKSTONE SECURITIES PARTNERS L.P. NEW YORK, New York, United States Related to adviser: Yes

Provider details

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

DELOITTE & TOUCHE LLP
PCAOB 34

CITCO BANK CANADA
LEI 549300U6C5DCBKSIEB26

BLACKSTONE SECURITIES PARTNERS L.P.
CRD 17917 · SEC 8-35941

Filing source

Form ADV 2123926 · Aug 4, 2026 · Schedule D 7.B.(1), fund 805-9147402105

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

People & organizations

Current and past Form D appearances. These existing records do not establish a person's current role or uniquely identify them across issuers.

People and organizations reported in Form D filings
Name	Reported role
Blackstone Alternative Asset Management Associates Llc Blackstone Alternative Asset Management Associates Llc	Executive
Blackstone Alternative Asset Management Associates Llc	Executive
Blackstone Alternative Asset Management L.P.	Promoter

Issuer details

Industry: Pooled Investment Fund (See others in industry)

Address:

345 Park Avenue 28 Th Floor
New York, NY, 10154