Form D · Hedge Fund

Magnetar Opportunity 2025-3 LP

Evanston, IL · CIK 0002085903

Offering snapshot reported Sep 15, 2026 · SEC filing

Reported sold: $50M
Investors reported: 3
Minimum accepted: $5M
First sale: Sep 1, 2025

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$25,002,500 → $50,005,000

Filing history

Scroll to see all columns →

Filed	Filing type	Reported sold	Change vs linked filing	Investors	Source
Sep 15, 2026	Amendment	$50,005,000	$25,002,500vs Sep 15, 2025	3	SEC filing
Sep 15, 2025	Initial	$25,002,500	No comparison	3	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: 021-557525

Source: Form D, filed Sep 15, 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

MO3P

Investment adviser: MAGNETAR FINANCIAL LLC

Gross asset value: $51.7M
Beneficial owners: 3
ADV minimum commitment: $0

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

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

Provider details

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

ERNST & YOUNG LLP
PCAOB 42

THE BANK OF NEW YORK MELLON
LEI HPFHU0OQ28E4N0NFVK49

U.S. BANK NATIONAL ASSOCIATION
LEI 6BYL5QZYBDK8S7L73M02

Filing source

Form ADV 2122076 · Aug 5, 2026 · Schedule D 7.B.(1), fund 805-7305458284

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
N/A Magnetar Financial Llc	Executive
N/A Magnetar Opportunity 2025 3 Gp Llc	Promoter
David Snyderman	Executive
Hayley Stein	Executive

Issuer details

Industry: Pooled Investment Fund (See others in industry)

Address:

1603 Orrington Ave, 13 Th Floor
Evanston, IL, 60201