Form D · Hedge Fund

Magnetar Alpha Star Fund LLC

Evanston, IL · CIK 0001932711

Offering snapshot reported Dec 15, 2025 · SEC filing

Reported sold: $707M
Investors reported: 2
Minimum accepted: $450M
First sale: May 26, 2022

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.

No comparable changes in the displayed metrics.

Filing history

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Filed	Filing type	Reported sold	Change vs linked filing	Investors	Source
Dec 15, 2025	Amendment	$707,000,000	$0vs Dec 13, 2024	2	SEC filing
Dec 13, 2024	Amendment	$707,000,000	$252,500,000vs Dec 13, 2023	2	SEC filing
Dec 13, 2023	Amendment	$454,500,000	$0vs Dec 13, 2022	2	SEC filing
Dec 13, 2022	Amendment	$454,500,000	$0vs Jun 15, 2022	2	SEC filing
Jun 15, 2022	Initial	$454,500,000	No comparison	2	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: 021-449282

Source: Form D, filed Dec 15, 2025. 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

MASF

Investment adviser: MAGNETAR FINANCIAL LLC

Gross asset value: $1.69B
Beneficial owners: 2
ADV minimum commitment: $4.5M

Reported in Form ADV on Aug 5, 2026. Fund assets and beneficial owners measure different things from Form D sales and investors.

Service providers

Fund administrator NORTHERN TRUST CHICAGO, Illinois, United States Investor statements: Yes (provided to all investors) Related to adviser: No

Auditor ERNST & YOUNG LLP CHICAGO, Illinois, United States

Custodian APEX CLEARING CORP ALBANY, New York, United States Related to adviser: No

Custodian BNP PARIBAS SECURITIES CORP. NEW YORK, New York, United States Related to adviser: No

Custodian COMPUTERSHARE TRUST COMPANY N.A. CANTON, Massachusetts, United States Related to adviser: No

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

Custodian MORGAN STANLEY BANK NA SALT LAKE CITY, Utah, United States Related to adviser: No

Custodian MORGAN STANLEY SMITH BARNEY LLC NEW YORK, New York, United States Related to adviser: No

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

Custodian U.S. BANK NATIONAL ASSOCIATION CLEVELAND, Ohio, United States Related to adviser: No

Prime broker BNP PARIBAS SECURITIES CORP. NEW YORK, New York, United States

Prime broker GOLDMAN SACHS & CO. LLC NEW YORK, New York, United States

Prime broker MORGAN STANLEY PURCHASE, New York, United States

Provider details

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

ERNST & YOUNG LLP
PCAOB 42

APEX CLEARING CORP
LEI 5493000418CITRF5BO80

BNP PARIBAS SECURITIES CORP.
SEC 8-32682

COMPUTERSHARE TRUST COMPANY N.A.
LEI 2549001YYB62BVMSAO13

GOLDMAN SACHS & CO. LLC
SEC 8-129

MORGAN STANLEY BANK NA
LEI G1MLHIS0N32I3QPILB75

MORGAN STANLEY SMITH BARNEY LLC
SEC 8-68191

THE BANK OF NEW YORK MELLON
LEI HPFHU0OQ28E4N0NFVK49

U.S. BANK NATIONAL ASSOCIATION
LEI 6BYL5QZYBDK8S7L73M02

BNP PARIBAS SECURITIES CORP.
CRD 15794 · SEC 8-32682

GOLDMAN SACHS & CO. LLC
CRD 361 · SEC 8-129

MORGAN STANLEY
CRD 149777 · SEC 8-68191

Filing source

Form ADV 2122076 · Aug 5, 2026 · Schedule D 7.B.(1), fund 805-6585705129

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
Ross Laser	Executive
Alec N. Litowitz	Executive
N/A Magnetar Alpha Star Mm Llc	Promoter
N/A Magnetar Financial Llc	Executive
David Snyderman	Executive
Hayley Stein	Executive
Michael Turro	Executive

Issuer details

Industry: Pooled Investment Fund (See others in industry)

Address:

1603 Orrington Avenue, 13th Floor
Evanston, IL, 60201