STOCK TITAN

CoreWeave (CRWV) sees 1.28M-share sale by Magnetar-managed funds

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

Rhea-AI Filing Summary

CoreWeave, Inc. saw significant insider selling activity by Magnetar-affiliated funds. On 2026-05-01, investment vehicles advised or managed by Magnetar entities reported open-market sales totaling 1,284,876 shares of Class A Common Stock at weighted average prices around $119.20–$121.10 per share, within ranges from $118.74 to $121.50.

The shares are held directly by various Magnetar funds, including CW Opportunity 2 LP, CW Opportunity LLC and several other Magnetar vehicles, while Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman report indirect ownership and disclaim beneficial ownership except for their pecuniary interests. One Magnetar fund reported 19,823,323 shares of Class A Common Stock following its reported trades.

Positive

  • None.

Negative

  • None.

Insights

Magnetar-managed funds reported a sizable but indirect net sale of CoreWeave shares.

Several Magnetar-managed funds collectively sold 1,284,876 shares of CoreWeave Class A Common Stock on 2026-05-01, through 27 open-market transactions. Reported weighted average prices cluster near $119–$121 per share, with detailed price ranges in the footnotes.

The transactions are attributed to multiple Magnetar funds that hold the shares directly, while Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman report only indirect interests and disclaim beneficial ownership beyond pecuniary stakes. Post-transaction positions remain large in at least one vehicle, which reports 19,823,323 shares held after its trades, indicating these were partial reductions rather than full exits from CoreWeave exposure.

Insider Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.
Role null | null | null | null
Sold 1,284,876 shs ($154.07M)
Type Security Shares Price Value
Sale Class A Common Stock 19,905 $119.20 $2.37M
Sale Class A Common Stock 96,195 $119.93 $11.54M
Sale Class A Common Stock 10,603 $121.10 $1.28M
Sale Class A Common Stock 63,082 $119.20 $7.52M
Sale Class A Common Stock 305,096 $119.93 $36.59M
Sale Class A Common Stock 33,616 $121.10 $4.07M
Sale Class A Common Stock 8,270 $119.20 $986K
Sale Class A Common Stock 40,000 $119.93 $4.80M
Sale Class A Common Stock 4,406 $121.10 $534K
Sale Class A Common Stock 855 $119.21 $102K
Sale Class A Common Stock 4,135 $119.93 $496K
Sale Class A Common Stock 455 $121.10 $55K
Sale Class A Common Stock 18,440 $119.20 $2.20M
Sale Class A Common Stock 89,158 $119.93 $10.69M
Sale Class A Common Stock 9,825 $121.10 $1.19M
Sale Class A Common Stock 25,316 $119.20 $3.02M
Sale Class A Common Stock 122,405 $119.93 $14.68M
Sale Class A Common Stock 13,489 $121.10 $1.63M
Sale Class A Common Stock 31,728 $119.20 $3.78M
Sale Class A Common Stock 153,441 $119.93 $18.40M
Sale Class A Common Stock 16,906 $121.10 $2.05M
Sale Class A Common Stock 7,170 $119.20 $855K
Sale Class A Common Stock 34,667 $119.93 $4.16M
Sale Class A Common Stock 3,820 $121.10 $463K
Sale Class A Common Stock 26,990 $119.20 $3.22M
Sale Class A Common Stock 130,522 $119.93 $15.65M
Sale Class A Common Stock 14,381 $121.10 $1.74M
Holdings After Transaction: Class A Common Stock — 4,765,373 shares (Indirect, Footnotes)
Footnotes (1)
  1. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $118.74 to $119.70, 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 footnote 2 and 3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $119.75 to $120.70, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $121.00 to $121.50, inclusive. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity 2 LP, CW Opportunity LLC, Magnetar Capital Master Fund, Ltd, Magnetar Constellation Master Fund, Ltd, Magnetar Longhorn Fund LP, and Magnetar SC Fund Ltd, the general partner of Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund (They are not separate legal entities), and the manager of Magnetar Alpha Star Fund LLC and Magnetar Lake Credit Fund LLC (collectively, the "Magnetar Funds"). 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. 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. These securities are held directly by CW Opportunity 2 LP. These securities are held directly by CW Opportunity LLC. These securities are held directly by Magnetar Alpha Star Fund LLC. These securities are held directly by Magnetar Capital Master Fund, Ltd. These securities are held directly by Magnetar Constellation Master Fund, Ltd. These securities are held directly by Magnetar Lake Credit Fund LLC. These securities are held directly by Magnetar Longhorn Fund LP. These securities are held directly by Magnetar SC Fund Ltd. These securities are held directly by Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund. They are not separate legal entities.
Shares sold 1,284,876 shares Total net shares sold on May 1, 2026 across 27 transactions
Lowest sale price range $118.74–$119.70 Footnote range for some transactions (weighted average in table)
Mid-range weighted prices $119.20 and $119.93 per share Representative weighted average sale prices reported in the transaction table
Highest price range $121.00–$121.50 Footnote range for higher-priced transactions
Largest post-trade holding 19,823,323 shares Shares of Class A Common Stock reported following one fund’s transactions
Transaction count 27 sales Number of non-derivative open-market sale entries reported
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
beneficial ownership financial
"disclaims beneficial ownership of these shares of Common Stock of the Issuer"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
pecuniary interest financial
"except to the extent of its or his pecuniary interest therein"
ten percent owner financial
"is_ten_percent_owner": 1"
indirect ownership financial
""ownership_type": "indirect""
SEC Form 4
FORM 4UNITED 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 ILLINOIS 60201

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
CoreWeave, Inc. [ CRWV ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
DirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/01/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
XForm filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Class A Common Stock05/01/2026S19,905D$119.2(1)4,765,373IFootnotes(4)(5)(6)(7)
Class A Common Stock05/01/2026S96,195D$119.93(2)4,669,178IFootnotes(4)(5)(6)(7)
Class A Common Stock05/01/2026S10,603D$121.1(3)4,658,575IFootnotes(4)(5)(6)(7)
Class A Common Stock05/01/2026S63,082D$119.2(1)19,823,323IFootnotes(4)(5)(6)(8)
Class A Common Stock05/01/2026S305,096D$119.93(2)19,518,227IFootnotes(4)(5)(6)(8)
Class A Common Stock05/01/2026S33,616D$121.1(3)19,484,611IFootnotes(4)(5)(6)(8)
Class A Common Stock05/01/2026S8,270D$119.2(1)1,262,981IFootnotes(4)(5)(6)(9)
Class A Common Stock05/01/2026S40,000D$119.93(2)1,222,981IFootnotes(4)(5)(6)(9)
Class A Common Stock05/01/2026S4,406D$121.1(3)1,218,575IFootnotes(4)(5)(6)(9)
Class A Common Stock05/01/2026S855D$119.21(1)268,651IFootnotes(4)(5)(6)(10)
Class A Common Stock05/01/2026S4,135D$119.93(2)264,516IFootnotes(4)(5)(6)(10)
Class A Common Stock05/01/2026S455D$121.1(3)264,061IFootnotes(4)(5)(6)(10)
Class A Common Stock05/01/2026S18,440D$119.2(1)4,335,960IFootnotes(4)(5)(6)(11)
Class A Common Stock05/01/2026S89,158D$119.93(2)4,246,802IFootnotes(4)(5)(6)(11)
Class A Common Stock05/01/2026S9,825D$121.1(3)4,236,977IFootnotes(4)(5)(6)(11)
Class A Common Stock05/01/2026S25,316D$119.2(1)5,403,237IFootnotes(4)(5)(6)(12)
Class A Common Stock05/01/2026S122,405D$119.93(2)5,280,832IFootnotes(4)(5)(6)(12)
Class A Common Stock05/01/2026S13,489D$121.1(3)5,267,343IFootnotes(4)(5)(6)(12)
Class A Common Stock05/01/2026S31,728D$119.2(1)7,753,128IFootnotes(4)(5)(6)(13)
Class A Common Stock05/01/2026S153,441D$119.93(2)7,599,687IFootnotes(4)(5)(6)(13)
Class A Common Stock05/01/2026S16,906D$121.1(3)7,582,781IFootnotes(4)(5)(6)(13)
Class A Common Stock05/01/2026S7,170D$119.2(1)916,707IFootnotes(4)(5)(6)(14)
Class A Common Stock05/01/2026S34,667D$119.93(2)882,040IFootnotes(4)(5)(6)(14)
Class A Common Stock05/01/2026S3,820D$121.1(3)878,220IFootnotes(4)(5)(6)(14)
Class A Common Stock05/01/2026S26,990D$119.2(1)7,752,026IFootnotes(4)(5)(6)(15)
Class A Common Stock05/01/2026S130,522D$119.93(2)7,621,504IFootnotes(4)(5)(6)(15)
Class A Common Stock05/01/2026S14,381D$121.1(3)7,607,123IFootnotes(4)(5)(6)(15)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
1. Name and Address of Reporting Person*
Magnetar Financial LLC

(Last)(First)(Middle)
1603 ORRINGTON AVENUE
13TH FLOOR

(Street)
EVANSTON ILLINOIS 60201

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% 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 ILLINOIS 60201

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% 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 ILLINOIS 60201

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% 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 ILLINOIS 60201

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% 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 $118.74 to $119.70, 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 footnote 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 $119.75 to $120.70, inclusive.
3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $121.00 to $121.50, inclusive.
4. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity 2 LP, CW Opportunity LLC, Magnetar Capital Master Fund, Ltd, Magnetar Constellation Master Fund, Ltd, Magnetar Longhorn Fund LP, and Magnetar SC Fund Ltd, the general partner of Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund (They are not separate legal entities), and the manager of Magnetar Alpha Star Fund LLC and Magnetar Lake Credit Fund LLC (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 CW Opportunity 2 LP.
8. These securities are held directly by CW Opportunity LLC.
9. These securities are held directly by Magnetar Alpha Star Fund LLC.
10. These securities are held directly by Magnetar Capital Master Fund, Ltd.
11. These securities are held directly by Magnetar Constellation Master Fund, Ltd.
12. These securities are held directly by Magnetar Lake Credit Fund LLC.
13. These securities are held directly by Magnetar Longhorn Fund LP.
14. These securities are held directly by Magnetar SC Fund Ltd.
15. These securities are held directly by Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund. They are not separate legal entities.
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative 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 LLC05/01/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC, which is the General Partner of Magnetar Capital Partners LP05/01/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC05/01/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman05/01/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

FAQ

What prices were CoreWeave (CRWV) shares sold at in the Magnetar Form 4 filing?

The reported sales used weighted average prices, typically around $119.20–$121.10 per share. Footnotes specify that underlying trades occurred in ranges from $118.74 to $121.50, with detailed breakdowns available upon request from the issuer or regulators.

Who actually holds the CoreWeave (CRWV) shares referenced in this Magnetar Form 4?

The shares are held directly by several Magnetar funds, including CW Opportunity 2 LP, CW Opportunity LLC and other named vehicles. Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman report indirect interests and disclaim beneficial ownership beyond their pecuniary stakes.

Are the CoreWeave (CRWV) sales in this Form 4 direct insider sales by David J. Snyderman?

No. Footnotes explain that the securities are held directly by various Magnetar funds, not by David J. Snyderman personally. Snyderman and related Magnetar entities disclaim beneficial ownership except for their pecuniary interests, and the positions are reported as indirect holdings.