Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Cogen Jack D 2. Issuer Name and Ticker or Trading Symbol CoreWeave, Inc. [CRWV] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O COREWEAVE, INC., 290 WEST MT. PLEASANT AVENUE, SUITE 4100 3. Date of Earliest Transaction (Month/Day/Year) 05/27/2026 (Street) LIVINGSTON, NJ 07039 4. If Amendment, Date Original Filed (Month/Day/Year) 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 (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 05/27/2026 S 100,000 D $103.77(1) 9,683,136 I CW Holding 987 LLC(2)(3) Class A Common Stock 05/28/2026 S 342,578 D $105.2708(4) 9,340,558 I CW Holding 987 LLC(2)(3) Class A Common Stock 05/28/2026 S 15,884 D $106.5302(5) 9,324,674 I CW Holding 987 LLC(2)(3) Class A Common Stock 05/28/2026 S 180,608 D $107.2226(6) 9,144,066 I CW Holding 987 LLC(2)(3) Class A Common Stock 05/28/2026 S 103,237 D $108.2009(7) 9,040,829 I CW Holding 987 LLC(2)(3) Class A Common Stock 261,140 D Class A Common Stock 654,200 I Birch Tree Trust LLC(2)(8) Class A Common Stock 146,613 I By Spouse(9) Class A Common Stock 116,167 I Cherry Tree 2024 GRAT(10) Class A Common Stock 654,200 I Chestnut Tree Trust LLC(2)(11) Class A Common Stock 1,200,000 I Cogen Family Trust, dated December 17, 2012(12) Class A Common Stock 19,200 I Jack D. Cogen 2020 Family Trust(2)(13) Class A Common Stock 654,200 I Maple Tree Trust LLC(2)(14) Class A Common Stock 200,000 I Pine Tree Trust LLC(2)(15) Class A Common Stock 654,200 I Willow Tree Trust LLC(2)(16)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Cogen Jack D C/O COREWEAVE, INC. 290 WEST MT. PLEASANT AVENUE, SUITE 4100 LIVINGSTON, NJ 07039	X

Signatures

/s/ Nisha Antony, as Attorney-in-Fact		05/29/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $103.50 to $104.12, inclusive. The reporting person undertakes to provide to 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 filing.
(2)	The reporting person disclaims beneficial ownership for purposes of Section 16 of the Exchange Act over securities held by the entity, except to the extent of his pecuniary interest therein, if any.
(3)	The reported securities are directly held by CW Holding 987 LLC, of which the reporting person serves as manager.
(4)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $105.00 to $105.96, inclusive.
(5)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $106.00 to $106.995, inclusive.
(6)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $107.00 to $107.99, inclusive.
(7)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $108.98 to $109.10, inclusive.
(8)	The reported securities are directly held by the Birch Tree Trust LLC, of which the reporting person is the manager.
(9)	The reported securities are directly held by the reporting person's spouse.
(10)	The reported securities are directly held by the Cherry Tree 2024 GRAT, of which the reporting person is trustee and his spouse is beneficiary.
(11)	The reported securities are directly held by the Chestnut Tree Trust LLC, of which the reporting person is the manager.
(12)	The reported securities are directly held by the Cogen Family Trust, dated December 17, 2012, of which the reporting person's spouse serves as co-trustee and of which his spouse and daughter are beneficiaries.
(13)	The reported securities are directly held by the Jack D. Cogen 2020 Family Trust (the "2020 Trust"), an irrevocable trust with a third-party trustee. The reporting person's spouse and daughter are beneficiaries of the 2020 Trust and the reporting person has the power to remove and replace the trustee.
(14)	The reported securities are directly held by the Maple Tree Trust LLC, of which the reporting person is the manager.
(15)	The reported securities were directly held by Pine Tree Trust LLC, of which the reporting person serves as manager.
(16)	The reported securities are directly held by the Willow Tree Trust LLC, of which the reporting person is the manager.

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