[Form 4] CoreWeave, Inc. Insider Trading Activity

Rhea-AI Filing Summary

CoreWeave (CRWV): Magnetar-affiliated reporting persons disclosed open‑market sales of Class A common stock on 10/31/2025 (transaction code S). The filing lists multiple trades executed at weighted‑average prices of $134.01, $135.10, $136.52, and $137.86, with stated ranges including $133.75–$134.50, $135.00–$135.10, and $137.54–$138.26.

The positions are reported as indirect holdings across several Magnetar-managed funds, with beneficial ownership disclaimed except to the extent of pecuniary interest. The reporting relationship indicates Director and 10% Owner status.

Insights

Securities law analyst

Routine Form 4 disclosing fund-level open‑market sales.

The filing reports indirect sales of CoreWeave Class A shares by entities advised by Magnetar Financial, executed on 10/31/2025 at weighted‑average prices around $134.01, $135.10, $136.52, and $137.86. Footnotes provide precise price ranges and identify the relevant funds.

Because these are indirect, fund‑level transactions with a standard pecuniary‑interest disclaimer, the signal is administrative rather than strategic. Actual impact depends on ongoing portfolio activity by the holders; the excerpt does not specify broader plans.

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
Estimated average burden
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)
10/31/2025

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
Class A Common Stock	10/31/2025		S		600	D	$134.01(1)	8,920,666	I	Footnotes(4)(5)(6)(7)
Class A Common Stock	10/31/2025		S		26,167	D	$135.1(2)	8,894,499	I	Footnotes(4)(5)(6)(7)
Class A Common Stock	10/31/2025		S		8,723	D	$136.52	8,885,776	I	Footnotes(4)(5)(6)(7)
Class A Common Stock	10/31/2025		S		3,460	D	$137.86(3)	8,882,316	I	Footnotes(4)(5)(6)(7)
Class A Common Stock	10/31/2025		S		248	D	$134.01(1)	1,191,735	I	Footnotes(4)(5)(6)(8)
Class A Common Stock	10/31/2025		S		10,955	D	$135.1(2)	1,180,780	I	Footnotes(4)(5)(6)(8)
Class A Common Stock	10/31/2025		S		3,652	D	$136.52	1,177,128	I	Footnotes(4)(5)(6)(8)
Class A Common Stock	10/31/2025		S		1,449	D	$137.86(3)	1,175,679	I	Footnotes(4)(5)(6)(8)
Class A Common Stock	10/31/2025		S		944	D	$134.01(1)	8,608,203	I	Footnotes(4)(5)(6)(9)
Class A Common Stock	10/31/2025		S		41,238	D	$135.1(2)	8,566,965	I	Footnotes(4)(5)(6)(9)
Class A Common Stock	10/31/2025		S		13,748	D	$136.52	8,553,217	I	Footnotes(4)(5)(6)(9)
Class A Common Stock	10/31/2025		S		5,453	D	$137.86(3)	8,547,764	I	Footnotes(4)(5)(6)(9)
Class A Common Stock	10/31/2025		S		584	D	$134.01(1)	3,192,990	I	Footnotes(4)(5)(6)(10)
Class A Common Stock	10/31/2025		S		25,416	D	$135.1(2)	3,167,574	I	Footnotes(4)(5)(6)(10)
Class A Common Stock	10/31/2025		S		8,473	D	$136.52	3,159,101	I	Footnotes(4)(5)(6)(10)
Class A Common Stock	10/31/2025		S		3,361	D	$137.86(3)	3,155,740	I	Footnotes(4)(5)(6)(10)
Class A Common Stock	10/31/2025		S		472	D	$134.01(1)	2,972,851	I	Footnotes(4)(5)(6)(11)
Class A Common Stock	10/31/2025		S		20,474	D	$135.1(2)	2,952,377	I	Footnotes(4)(5)(6)(11)
Class A Common Stock	10/31/2025		S		6,825	D	$136.52	2,945,552	I	Footnotes(4)(5)(6)(11)
Class A Common Stock	10/31/2025		S		2,707	D	$137.86(3)	2,942,845	I	Footnotes(4)(5)(6)(11)
Class A Common Stock	10/31/2025		S		96	D	$134.01(1)	860,155	I	Footnotes(4)(5)(6)(12)
Class A Common Stock	10/31/2025		S		4,289	D	$135.1(2)	855,866	I	Footnotes(4)(5)(6)(12)
Class A Common Stock	10/31/2025		S		1,429	D	$136.52	854,437	I	Footnotes(4)(5)(6)(12)
Class A Common Stock	10/31/2025		S		568	D	$137.86(3)	853,869	I	Footnotes(4)(5)(6)(12)

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

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 price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $133.75 to $134.50, inclusive. The reporting person undertakes to provide to CoreWeave, Inc. (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote and in footnotes 2 and 3.

2. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $135.00 to $135.10 inclusive.

3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $137.54 to $138.26, inclusive.

4. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of Magnetar Longhorn Fund LP, Magnetar SC Fund Ltd, Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund - F LLC, and Purpose Alternative Credit Fund - T LLC and the general partner of Magnetar Structured Credit Fund, LP (collectively, the "Magnetar Funds").

5. 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 administrative manager of Supernova Management is David J. Snyderman, a citizen of the United States of America.

6. 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.

7. These securities are held directly by Magnetar Longhorn Fund LP.

8. These securities are held directly by Magnetar SC Fund Ltd.

9. These securities are held directly by Magnetar Structured Credit Fund, LP.

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

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

12. 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	10/31/2025
	/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	10/31/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC	10/31/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman	10/31/2025
	** 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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did CoreWeave (CRWV) insiders report on Form 4?

Open‑market sales (code S) of Class A common stock on 10/31/2025 by Magnetar‑affiliated reporting persons.

What prices were involved in the CRWV sales?

Weighted‑average prices of $134.01, $135.10, $136.52, and $137.86, with ranges of $133.75–$134.50, $135.00–$135.10, and $137.54–$138.26.

Were the CRWV transactions direct or indirect?

They were reported as indirect through multiple Magnetar‑managed funds, as detailed in the footnotes.

Which entities were identified in the footnotes?

Funds include Magnetar Longhorn Fund LP, Magnetar SC Fund Ltd, Magnetar Structured Credit Fund, LP, Magnetar Xing He Master Fund Ltd, and Purpose Alternative Credit Funds.

Did the filer claim full beneficial ownership of the CRWV shares?

No. The filing disclaims beneficial ownership except to the extent of pecuniary interest.

What is the filer’s relationship to CoreWeave (CRWV)?

The relationship section indicates Director and 10% Owner status.