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[Form 4] CoreWeave, Inc. Insider Trading Activity

Filing Impact
(High)
Filing Sentiment
(Very Negative)
Form Type
4
Rhea-AI Filing Summary

CoreWeave (CRWV): Magnetar-affiliated funds reported open‑market sales of Class A common stock on 10/28/2025. The trades were executed at weighted average prices within disclosed ranges, including $134.83–$135.80, $136.40–$137.09, $137.40–$138.38, $138.67–$139.59, and $139.70–$140.59, with an additional sale at $141.74.

Individual tranches disclosed include 101,592 shares at a weighted average price of $138.38 and 74,000 shares at a weighted average price of $138.38, among other smaller lots. The filing lists these positions as indirect holdings tied to specific Magnetar funds, with post‑transaction beneficial ownership amounts shown for each fund.

Positive
  • None.
Negative
  • None.

Insights

Routine Form 4 reporting multiple open‑market sales; neutral.

The filing reports code S transactions, indicating open‑market sales of CoreWeave Class A shares on 10/28/2025 by Magnetar‑affiliated funds. Prices are presented as weighted averages with precise intra‑range disclosures, consistent with standard Section 16 reporting practices.

The disclosure attributes indirect ownership to specific Magnetar funds and provides post‑transaction beneficial holdings per fund. No issuer cash flows are involved; these are shareholder sales. Actual market impact depends on trade size relative to float and liquidity, which is not provided in the excerpt.

Key specifics include tranches such as 101,592 shares at $138.38 and 74,000 shares at $138.38, plus sales at ranges up to $141.74. Subsequent filings may provide additional context if further transactions occur.

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)
10/28/2025
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 10/28/2025 S 192 D $134.89(1) 312,235 I Footnotes(6)(7)(8)(9)
Class A Common Stock 10/28/2025 S 24 D $136.86(2) 312,211 I Footnotes(6)(7)(8)(9)
Class A Common Stock 10/28/2025 S 3,434 D $138.38(3) 308,777 I Footnotes(6)(7)(8)(9)
Class A Common Stock 10/28/2025 S 1,277 D $139.18(4) 307,500 I Footnotes(6)(7)(8)(9)
Class A Common Stock 10/28/2025 S 465 D $140.21(5) 307,035 I Footnotes(6)(7)(8)(9)
Class A Common Stock 10/28/2025 S 28 D $141.74 307,007 I Footnotes(6)(7)(8)(9)
Class A Common Stock 10/28/2025 S 4,095 D $134.88(1) 5,275,469 I Footnotes(6)(7)(8)(10)
Class A Common Stock 10/28/2025 S 486 D $136.86(2) 5,274,983 I Footnotes(6)(7)(8)(10)
Class A Common Stock 10/28/2025 S 74,000 D $138.38(3) 5,200,983 I Footnotes(6)(7)(8)(10)
Class A Common Stock 10/28/2025 S 27,429 D $139.18(4) 5,173,554 I Footnotes(6)(7)(8)(10)
Class A Common Stock 10/28/2025 S 9,988 D $140.21(5) 5,163,566 I Footnotes(6)(7)(8)(10)
Class A Common Stock 10/28/2025 S 585 D $141.74 5,162,981 I Footnotes(6)(7)(8)(10)
Class A Common Stock 10/28/2025 S 5,621 D $134.88(1) 6,573,445 I Footnotes(6)(7)(8)(11)
Class A Common Stock 10/28/2025 S 666 D $136.86(2) 6,572,779 I Footnotes(6)(7)(8)(11)
Class A Common Stock 10/28/2025 S 101,592 D $138.38(3) 6,471,187 I Footnotes(6)(7)(8)(11)
Class A Common Stock 10/28/2025 S 37,647 D $139.18(4) 6,433,540 I Footnotes(6)(7)(8)(11)
Class A Common Stock 10/28/2025 S 13,708 D $140.21(5) 6,419,832 I Footnotes(6)(7)(8)(11)
Class A Common Stock 10/28/2025 S 802 D $141.74 6,419,030 I Footnotes(6)(7)(8)(11)
Class A Common Stock 10/28/2025 S 3,802 D $134.88(1) 9,136,320 I Footnotes(6)(7)(8)(12)
Class A Common Stock 10/28/2025 S 450 D $136.86(2) 9,135,870 I Footnotes(6)(7)(8)(12)
Class A Common Stock 10/28/2025 S 68,734 D $138.38(3) 9,067,136 I Footnotes(6)(7)(8)(12)
Class A Common Stock 10/28/2025 S 25,472 D $139.18(4) 9,041,664 I Footnotes(6)(7)(8)(12)
Class A Common Stock 10/28/2025 S 9,275 D $140.21(5) 9,032,389 I Footnotes(6)(7)(8)(12)
Class A Common Stock 10/28/2025 S 543 D $141.74 9,031,846 I Footnotes(6)(7)(8)(12)
Class A Common Stock 10/28/2025 S 1,590 D $134.88(1) 1,282,011 I Footnotes(6)(7)(8)(13)
Class A Common Stock 10/28/2025 S 186 D $136.86(2) 1,281,825 I Footnotes(6)(7)(8)(13)
Class A Common Stock 10/28/2025 S 28,773 D $138.38(3) 1,253,052 I Footnotes(6)(7)(8)(13)
Class A Common Stock 10/28/2025 S 10,662 D $139.18(4) 1,242,390 I Footnotes(6)(7)(8)(13)
Class A Common Stock 10/28/2025 S 3,883 D $140.21(5) 1,238,507 I Footnotes(6)(7)(8)(13)
Class A Common Stock 10/28/2025 S 228 D $141.74 1,238,279 I Footnotes(6)(7)(8)(13)
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 $134.83 to $135.80, 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, 3, 4, and 5.
2. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $136.40 to $137.09, inclusive.
3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $137.40 to $138.38, inclusive.
4. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $138.67 to $139.59, inclusive.
5. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $139.70 to $140.59, inclusive.
6. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of Magnetar Capital Master Fund, Ltd, Magnetar Constellation Master Fund, Ltd, Magnetar Longhorn Fund LP, and Magnetar SC Fund Ltd and the manager of Magnetar Lake Credit Fund LLC (collectively, the "Magnetar Funds").
7. 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.
8. 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.
9. These securities are held directly by Magnetar Capital Master Fund, Ltd.
10. These securities are held directly by Magnetar Constellation Master Fund, Ltd.
11. These securities are held directly by Magnetar Lake Credit Fund LLC.
12. These securities are held directly by Magnetar Longhorn Fund LP.
13. These securities are held directly by Magnetar SC Fund Ltd.
/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 10/29/2025
/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 10/29/2025
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC 10/29/2025
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman 10/29/2025
** 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 in this filing?

Affiliated Magnetar funds reported open‑market sales of Class A shares on 10/28/2025 at weighted average prices within stated ranges.

What price ranges were disclosed for the CRWV share sales?

Ranges included $134.83–$135.80, $136.40–$137.09, $137.40–$138.38, $138.67–$139.59, and $139.70–$140.59, plus a sale at $141.74.

Were any large tranches detailed in the CoreWeave Form 4?

Yes, including 101,592 shares at $138.38 and 74,000 shares at $138.38, alongside several smaller lots.

How were the positions held according to the filing?

The positions are listed as indirect holdings by specific Magnetar funds, with post‑transaction beneficial ownership amounts shown for each fund.

Does the Form 4 indicate issuer proceeds for CRWV?

No. These are shareholder sales (code S), so proceeds go to the selling holders, not the company.
CoreWeave, Inc.

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66.20B
284.53M
24.91%
55.56%
5.94%
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