Hedge Fund Magnetar Takes Strategic Position in AI Infrastructure Firm CoreWeave

Rhea-AI Filing Summary

Magnetar Structured Credit Fund LP filed an amended Form 3/A for CoreWeave, disclosing beneficial ownership of securities initially omitted from their original March 27, 2025 filing. The fund is reported as a 10% owner of CoreWeave (CRWV).

Key disclosure details:

• The fund holds derivative securities in the form of Right to Purchase agreements for 179,250 shares of Class A Common Stock
• Exercise price set at $40 per share
• Rights are exercisable from March 27, 2025, with expiration on March 27, 2026
• Ownership form is Direct (D), though MSCF disclaims beneficial ownership except for its pecuniary interest

The amendment was signed by Hayley A. Stein as attorney-in-fact, representing the fund's complex management structure through Supernova Management LLC, Magnetar Capital Partners LP, and Magnetar Financial LLC.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider MAGNETAR STRUCTURED CREDIT FUND LP

Role 10% Owner

Type	Security	Shares	Price	Value
holding	Right to Purchase	--	--	--

Holdings After Transaction: Right to Purchase — 179,250 shares (Direct)

Footnotes (1)

1. This Form 3/A is being filed to include securities beneficially owned by the reporting person as of March 27, 2025, which were inadvertently omitted from the original Form 3. Magnetar Structured Credit Fund, LP ("MSCF") disclaims beneficial ownership of the reported securities, except to the extent of its pecuniary interest therein.

Understanding Insider Trading Forms →

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

MAGNETAR STRUCTURED CREDIT FUND LP

(Last) (First) (Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON IL 60201

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
03/27/2025

3. Issuer Name and Ticker or Trading Symbol
CoreWeave, Inc. [ CRWV ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)
03/27/2025

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Right to Purchase	03/27/2025	03/27/2026	Class A Common Stock	179,250(1)	$40	D(2)

Explanation of Responses:

1. This Form 3/A is being filed to include securities beneficially owned by the reporting person as of March 27, 2025, which were inadvertently omitted from the original Form 3.

2. Magnetar Structured Credit Fund, LP ("MSCF") disclaims beneficial ownership of the reported securities, except to the extent of its pecuniary interest therein.

	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC, which is the General Partner of Magnetar Capital Partners LP, which is the Sole Member of Magnetar Financial LLC, the general partner of MSCF	06/18/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What securities does Magnetar Structured Credit Fund LP own in CRWV as of March 2025?

According to the Form 3/A filing, Magnetar Structured Credit Fund LP owns a right to purchase 179,250 shares of CRWV Class A Common Stock at an exercise price of $40. This derivative security is exercisable from 03/27/2025 and expires on 03/27/2026.

When did Magnetar Structured Credit Fund LP become a 10% owner of CRWV?

The Form 3/A indicates that Magnetar Structured Credit Fund LP became a 10% owner of CRWV on March 27, 2025. This is shown as the 'Date of Event Requiring Statement' in the filing.

Why did CRWV's Magnetar Structured Credit Fund LP file an amended Form 3 (Form 3/A)?

The Form 3/A was filed to include securities beneficially owned by Magnetar Structured Credit Fund LP as of March 27, 2025, which were inadvertently omitted from the original Form 3 filing. This explanation is explicitly stated in the filing's footnotes.

What is the ownership structure of CRWV's Magnetar Structured Credit Fund LP's holdings?

The filing shows that Magnetar Structured Credit Fund LP holds its CRWV securities directly (D), though they disclaim beneficial ownership except to the extent of their pecuniary interest. The fund is managed by Supernova Management LLC, which is the General Partner of Magnetar Capital Partners LP, which is the Sole Member of Magnetar Financial LLC, the general partner of MSCF.