[Form 4] CoreWeave, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Magnetar-related entities reported a collar transaction tied to CoreWeave, Inc. (CRWV) shares executed on 08/22/2025. The arrangement involved writing covered call options with a $160 strike and purchasing put options with a $70 strike, each set expiring 03/20/2026. The filing lists three option blocks covering 54,235, 43,690 and 9,154 Class A shares, respectively. The securities are held directly by three Magnetar funds and reported as indirect beneficial ownership; reporting parties include Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman. The filing states each entity disclaims beneficial ownership except for pecuniary interest.

Positive

• Filed disclosure of a collar arrangement including call and put strikes ($160 call, $70 put) and expiration date (03/20/2026).
• Identifies reporting parties and ownership chain (Magnetar Financial LLC; Magnetar Capital Partners LP; Supernova Management LLC; David J. Snyderman) and direct holders of shares.

Negative

• None.

Insights

Financial Analyst

TL;DR: Magnetar executed a collar on CRWV stock—simultaneous covered calls and protective puts with fixed strikes and a March 2026 expiration.

The Form 4 documents a collar entered on 08/22/2025 involving covered calls at a $160 strike and puts at a $70 strike expiring 03/20/2026. The transaction is split across three blocks covering 54,235; 43,690; and 9,154 Class A shares, all reported as indirect ownership. The filing identifies the specific Magnetar entities that hold the underlying shares and clarifies that only one option can be in-the-money at expiration, with in-the-money options settled in shares. This is a hedging structure explicitly stated in the filing; no trading price for premium is disclosed beyond per-share option strike values shown in the filing footers.

Corporate Governance Expert

TL;DR: Reporting follows Section 16 requirements and discloses entity relationships and the collar mechanics; beneficial ownership is disclaimed except for pecuniary interest.

The filing names Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman as reporting persons and explains the ownership chain and disclaimers. It clearly states the securities are held directly by three specified funds and that each reporting entity disclaims beneficial ownership except to the extent of pecuniary interest. Signatures are made via attorney-in-fact on 08/25/2025. The disclosure is procedural and compliant in content presented; the filing does not provide premium paid/received for the options or other economic terms beyond strike prices and stated share counts.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Magnetar Financial LLC

(Last) (First) (Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON IL 60201

(City) (State) (Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
08/22/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Call option (obligation to sell)	$160	08/22/2025		S/K(1)			54,235	03/20/2026	03/20/2026	Class A Common Stock	54,235	$406,762.5	54,235	I	Footnotes(2)(3)(4)(5)
Put option (right to sell)	$70	08/22/2025		P/K(1)		54,235		03/20/2026	03/20/2026	Class A Common Stock	54,235	$542,350	54,235	I	Footnotes(2)(3)(4)(5)
Call option (obligation to sell)	$160	08/22/2025		S/K(1)			43,690	03/20/2026	03/20/2026	Class A Common Stock	43,690	$327,675	43,690	I	Footnotes(2)(3)(4)(6)
Put option (right to sell)	$70	08/22/2025		P/K(1)		43,690		03/20/2026	03/20/2026	Class A Common Stock	43,690	$436,900	43,690	I	Footnotes(2)(3)(4)(6)
Call option (obligation to sell)	$160	08/22/2025		S/K(1)			9,154	03/20/2026	03/20/2026	Class A Common Stock	9,154	$68,655	9,154	I	Footnotes(2)(3)(4)(7)
Put option (right to sell)	$70	08/22/2025		P/K(1)		9,154		03/20/2026	03/20/2026	Class A Common Stock	9,154	$91,540	9,154	I	Footnotes(2)(3)(4)(7)

1. Name and Address of Reporting Person^*

Magnetar Financial LLC

(Last) (First) (Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON IL 60201

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

Magnetar Capital Partners LP

(Last) (First) (Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON IL 60201

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

Supernova Management LLC

(Last) (First) (Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON IL 60201

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

Snyderman David J.

(Last) (First) (Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON IL 60201

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

Explanation of Responses:

1. The entity holding the underlying shares of Class A common stock (the "Common Stock") of CoreWeave, Inc. entered into a collar arrangement pursuant to which such entity wrote a covered call option and purchased a put option. Only one of the options can be in-the-money on the expiration date, at which time the in-the-money option will be exercised and settled in shares and the other option will expire. If neither option is in-the-money on the expiration date, both options will expire.

2. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund - F LLC and Purpose Alternative Credit Fund - T LLC (collectively, the "Magnetar Funds").

3. Magnetar Capital Partners LP ("Magnetar Capital Partners") is the sole member and parent holding company of Magnetar Financial. Supernova Management LLC ("Supernova Management") is the general partner of Magnetar Capital Partners. The manager of Supernova Management is David J. Snyderman, a citizen of the United States of America.

4. Each of the Magnetar Funds, Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman disclaims beneficial ownership of these shares of Common Stock of the Issuer, except to the extent of its or his pecuniary interest therein.

5. These securities are held directly by Magnetar Xing He Master Fund Ltd.

6. These securities are held directly by Purpose Alternative Credit Fund - F LLC.

7. These securities are held directly by Purpose Alternative Credit Fund - T LLC.

	/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 in turn the Sole Member of Magnetar Financial LLC	08/25/2025
	/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	08/25/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC	08/25/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman	08/25/2025
	** 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 4 (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 transaction did Magnetar report on Form 4 for CRWV?

The filing reports a collar executed on 08/22/2025 comprising written covered calls at a $160 strike and purchased puts at a $70 strike, expiring 03/20/2026.

How many CoreWeave (CRWV) shares are covered by the options in the filing?

The filing lists three option blocks covering 54,235, 43,690 and 9,154 Class A shares respectively.

Who are the reporting persons on this Form 4 for CRWV?

The reporting persons are Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman.

What is the nature of the reported ownership?

All reported positions are listed as indirect (I) beneficial ownership, and the filing states each reporting entity disclaims beneficial ownership except for pecuniary interest.

When were the Form 4 signatures dated?

The Form 4 signatures were executed by attorney-in-fact on 08/25/2025 as shown in the filing.