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CRWV insider filing shows Magnetar-linked funds’ sales on 10/10/2025

Filing Impact
(Very High)
Filing Sentiment
(Very Negative)
Form Type
4

Rhea-AI Filing Summary

CoreWeave (CRWV) reported insider activity as a Schedule 13(d) group/10% owner affiliated with Magnetar. On 10/10/2025, the reporting persons executed multiple open‑market sales of Class A common stock at weighted‑average prices spanning $144.22 to $151.35 per share, disclosed across numerous trade lots. Examples include blocks sold at $148.50, $150.36, and $151.31. Ownership is reported as indirect through affiliated funds, with footnotes identifying CW Opportunity LLC, CW Opportunity 2 LP, Longhorn Special Opportunities Fund LP, and Magnetar Alpha Star Fund LLC. The filing notes the prices reflect weighted averages and that detailed trade breakdowns are available upon request.

Positive

  • None.

Negative

  • None.

Insights

Large open‑market sales by a 10% owner across four funds; sizable reduction in indirect holdings on 10/10/2025.

CoreWeave, Inc. (CRWV) reported multiple open‑market sales of Class A shares on 10/10/2025 by entities advised by Magnetar Financial LLC. Aggregated across four funds, the sales total 414,547 shares, executed at weighted average prices within disclosed ranges of $144.22 to $151.35. No derivatives were reported. The filing is a joint Form 4 for more than one reporting person and indicates indirect ownership.

Post‑transaction indirect holdings stand at 6,025,790 (CW Opportunity 2 LP), 24,266,929 (CW Opportunity LLC), 2,742,416 (Longhorn Special Opportunities Fund LP), and 1,845,583 (Magnetar Alpha Star Fund LLC). The reporting persons disclaim beneficial ownership except to the extent of pecuniary interest. This reflects distribution of shares by a disclosed 10% owner group. Items to watch include any subsequent Form 4 activity and changes in aggregate indirect holdings over the coming weeks.

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).
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)
10/10/2025
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 10/10/2025 S 80 D $142.02 6,081,533 I Footnotes(11)(12)(13)(14)
Class A Common Stock 10/10/2025 S 6,230 D $144.39(1) 6,075,303 I Footnotes(11)(12)(13)(14)
Class A Common Stock 10/10/2025 S 491 D $145.9(2) 6,074,812 I Footnotes(11)(12)(13)(14)
Class A Common Stock 10/10/2025 S 588 D $146.61(3) 6,074,224 I Footnotes(11)(12)(13)(14)
Class A Common Stock 10/10/2025 S 136 D $147.84(4) 6,074,088 I Footnotes(11)(12)(13)(14)
Class A Common Stock 10/10/2025 S 38,694 D $148.5(5) 6,035,394 I Footnotes(11)(12)(13)(14)
Class A Common Stock 10/10/2025 S 5,610 D $150.3(6) 6,029,784 I Footnotes(11)(12)(13)(14)
Class A Common Stock 10/10/2025 S 3,994 D $151.29(7) 6,025,790 I Footnotes(11)(12)(13)(14)
Class A Common Stock 10/10/2025 S 3,567 D $144.55(8) 24,482,888 I Footnotes(11)(12)(13)(15)
Class A Common Stock 10/10/2025 S 1,650 D $145.87(2) 24,481,238 I Footnotes(11)(12)(13)(15)
Class A Common Stock 10/10/2025 S 2,204 D $146.65(3) 24,479,034 I Footnotes(11)(12)(13)(15)
Class A Common Stock 10/10/2025 S 275 D $147.4 24,478,759 I Footnotes(11)(12)(13)(15)
Class A Common Stock 10/10/2025 S 173,192 D $148.5(5) 24,305,567 I Footnotes(11)(12)(13)(15)
Class A Common Stock 10/10/2025 S 22,078 D $150.36(9) 24,283,489 I Footnotes(11)(12)(13)(15)
Class A Common Stock 10/10/2025 S 16,560 D $151.31(10) 24,266,929 I Footnotes(11)(12)(13)(15)
Class A Common Stock 10/10/2025 S 1,801 D $144.55(8) 2,851,037 I Footnotes(11)(12)(13)(16)
Class A Common Stock 10/10/2025 S 834 D $145.87(2) 2,850,203 I Footnotes(11)(12)(13)(16)
Class A Common Stock 10/10/2025 S 1,112 D $146.65(3) 2,849,091 I Footnotes(11)(12)(13)(16)
Class A Common Stock 10/10/2025 S 139 D $147.4 2,848,952 I Footnotes(11)(12)(13)(16)
Class A Common Stock 10/10/2025 S 87,103 D $148.5(5) 2,761,849 I Footnotes(11)(12)(13)(16)
Class A Common Stock 10/10/2025 S 11,104 D $150.36(9) 2,750,745 I Footnotes(11)(12)(13)(16)
Class A Common Stock 10/10/2025 S 8,329 D $151.31(10) 2,742,416 I Footnotes(11)(12)(13)(16)
Class A Common Stock 10/10/2025 S 461 D $144.55(8) 1,873,898 I Footnotes(11)(12)(13)(17)
Class A Common Stock 10/10/2025 S 216 D $145.87(2) 1,873,682 I Footnotes(11)(12)(13)(17)
Class A Common Stock 10/10/2025 S 288 D $146.65(3) 1,873,394 I Footnotes(11)(12)(13)(17)
Class A Common Stock 10/10/2025 S 36 D $147.4 1,873,358 I Footnotes(11)(12)(13)(17)
Class A Common Stock 10/10/2025 S 22,709 D $148.5(5) 1,850,649 I Footnotes(11)(12)(13)(17)
Class A Common Stock 10/10/2025 S 2,895 D $150.36(9) 1,847,754 I Footnotes(11)(12)(13)(17)
Class A Common Stock 10/10/2025 S 2,171 D $151.31(10) 1,845,583 I Footnotes(11)(12)(13)(17)
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 $144.22 to $145.19, 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, 5, 6, 7, 8, 9 and 10.
2. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $145.35 to $146.30, inclusive.
3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $146.39 to $146.85, inclusive.
4. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $147.40 to $148.19, inclusive.
5. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $148.41 to $149.40, inclusive.
6. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $149.65 to $150.60, inclusive.
7. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $151.10 to $151.35, inclusive.
8. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $144.22 to $144.96, inclusive.
9. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $149.82 to $150.60, inclusive.
10. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $151.30 to $151.35, inclusive.
11. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity LLC, CW Opportunity 2 LP and Longhorn Special Opportunities Fund LP, and the manager of Magnetar Alpha Star Fund LLC (collectively, the "Magnetar Funds").
12. 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.
13. 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.
14. These securities are held directly by CW Opportunity 2 LP.
15. These securities are held directly by CW Opportunity LLC.
16. These securities are held directly by Longhorn Special Opportunities Fund LP.
17. These securities are held directly by Magnetar Alpha Star Fund 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 10/10/2025
/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 10/10/2025
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC 10/10/2025
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman 10/10/2025
** 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) disclose in this Form 4?

Multiple open‑market sales of Class A common stock on 10/10/2025 by a 10% owner affiliated with Magnetar, reported at weighted‑average prices.

What were the reported sale price ranges for CRWV shares?

Weighted‑average prices ranged from $144.22 to $151.35 per share, with several blocks noted at $148.50, $150.36, and $151.31.

Were the sales direct or indirect?

The sales were reported as indirect ownership transactions through affiliated funds.

Which affiliated funds were involved in the CRWV insider sales?

Footnotes list CW Opportunity LLC, CW Opportunity 2 LP, Longhorn Special Opportunities Fund LP, and Magnetar Alpha Star Fund LLC.

Who are the reporting persons connected to these transactions?

Affiliates of Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman, as described in the footnotes.

How are the reported prices calculated?

Each noted price is a weighted average for multiple trades within stated ranges; detailed trade-by-trade prices are available upon request as noted.

What class of CoreWeave stock was sold?

The transactions involved Class A common stock of CoreWeave, Inc.
CoreWeave, Inc.

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49.58B
313.25M
24.91%
55.56%
5.94%
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