Sec Form 4 Filing - McBee Brannin @ CoreWeave, Inc. - 2025-09-05

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person McBee Brannin 2. Issuer Name and Ticker or Trading Symbol CoreWeave, Inc. [ CRWV] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Development Officer (Last) (First) (Middle) C/O COREWEAVE, INC., 290 WEST MT. PLEASANT AVENUE, SUITE 4100 3. Date of Earliest Transaction (MM/DD/YY) 09/05/2025 (Street) LIVINGSTON, NJ07039 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 09/05/2025 C 250,000 A 371,965 D Class A Common Stock 09/05/2025 C 375,000 A 375,000 I Brannin J. McBee 2022 Irrevocable Trust ( 2 ) Class A Common Stock 60,000 I Canis Major SM Trust ( 3 ) Class A Common Stock 1,800 I See Footnote ( 4 )

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 Class B Common Stock ( 1 ) 09/05/2025 C 250,000 ( 1 ) ( 1 ) Class A Common Stock 250,000 ( 1 ) 10,642,260 D Class B Common Stock ( 1 ) 09/05/2025 C 375,000 ( 1 ) ( 1 ) Class A Common Stock 375,000 ( 1 ) 5,166,020 I Brannin J. McBee 2022 Irrevocable Trust ( 2 ) Class B Common Stock ( 1 ) ( 1 ) ( 1 ) Class A Common Stock 2,300,300 2,300,300 I By Spouse ( 5 ) Class B Common Stock ( 1 ) ( 1 ) ( 1 ) Class A Common Stock 104,000 104,000 I Canis Major 2025 Family Trust LLC ( 6 ) Class B Common Stock ( 1 ) ( 1 ) ( 1 ) Class A Common Stock 6,000,000 6,000,000 I Canis Major 2025 GRAT ( 7 ) Class B Common Stock ( 1 ) ( 1 ) ( 1 ) Class A Common Stock 360,000 360,000 I Canis Major 2024 Irrevocable Trust LLC ( 8 ) Class B Common Stock ( 1 ) ( 1 ) ( 1 ) Class A Common Stock 114,000 114,000 I Canis Minor 2025 Family Trust LLC ( 9 ) Class B Common Stock ( 1 ) ( 1 ) ( 1 ) Class A Common Stock 1,000,000 1,000,000 I Canis Minor 2025 GRAT ( 10 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other McBee Brannin C/O COREWEAVE, INC. 290 WEST MT. PLEASANT AVENUE, SUITE 4100 LIVINGSTON, NJ07039 Chief Development Officer Signatures /s/ Kristen McVeety, as Attorney-in-Fact 09/09/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Each share of Class B Common Stock is convertible into one share of the Issuer's Class A Common Stock at any time, at the election of the holder or automatically upon certain transfers, whether or not for value, or upon the occurrence of certain events or conditions described in the Issuer's Amended and Restated Certificate of Incorporation. ( 2 )The reported securities are directly held by the Brannin J. McBee 2022 Irrevocable Trust, of which the reporting person's spouse and minor child are beneficiaries and for which the reporting person's spouse serves as trustee. ( 3 )The reported securities are directly held by the Canis Major SM Trust (the "Canis Trust"), an irrevocable trust with a third-party trustee, of which the reporting person's minor child is beneficiary. The reporting person has the power to remove and replace the Canis Trust's trustee. ( 4 )The reported securities are directly held of record by the reporting person's minor child. ( 5 )The reported securities are directly held by the reporting person's spouse. ( 6 ) The reported securities are directly held by the Canis Major 2025 Family Trust LLC, of which the reporting person serves as manager. ( 7 )The reported securities are directly held by the Canis Major 2025 GRAT, of which the reporting person is the sole trustee and beneficiary. ( 8 )The reported securities are directly held by the Canis Major 2024 Irrevocable Trust LLC (the "2024 LLC") of which the reporting person serves as manager. ( 9 )The reported securities are directly held by the Canis Minor 2025 Family Trust LLC, of which the reporting person serves as manager. ( 10 )The reported securities are directly held by the Canis Minor 2025 GRAT, of which the reporting person's spouse is the sole beneficiary and trustee.

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).

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