KOPACC and Jamisons Report 5.3% Class A Ownership in CoreWeave

Rhea-AI Filing Summary

CoreWeave, Inc.'s Schedule 13G discloses that KOPACC, LLC and two individuals, Stephen S. Jamison and Wesley J. Jamison, beneficially own 18,422,720 shares of Class A common stock, representing 5.3% of the Class A shares outstanding based on 345,997,406 shares reported in the company prospectus. The filing states the shares are held directly by KOPACC and that the Jamisons may be deemed to share voting and dispositive power through management entities. The statement shows no sole voting or dispositive power for any reporting person and reports shared voting and dispositive power for all 18,422,720 shares.

Positive

• 18,422,720 shares of Class A common stock are clearly disclosed
• 5.3% of Class A is quantified based on the prospectus total of 345,997,406 shares, providing transparent basis for the percentage

Negative

• No sole voting or dispositive power is reported for any reporting person; all authority is reported as shared

Insights

Financial Analyst

TL;DR: Routine >5% ownership disclosure: 18,422,720 shares (5.3%) held via KOPACC with shared control.

The Schedule 13G reports a material, but non-controlling, beneficial position of 18,422,720 shares in CoreWeave's Class A stock, equal to 5.3% of the class on the prospectus share count of 345,997,406. Ownership is held directly by KOPACC, and the filing clarifies that Stephen S. Jamison and Wesley J. Jamison may be deemed to share voting and dispositive power through their respective management entities. The filing records no sole voting or dispositive power, indicating collective rather than unilateral control.

Corporate Governance Expert

TL;DR: Ownership is routed through layered management entities, with shared voting and dispositive authority but no sole control.

The filing identifies the governance chain: the shares are held by KOPACC, which is managed by Koppenberg Management LLC, itself managed via Luchetti Street Investment Management LLC, creating a layered control structure. The Jamisons are disclosed as persons who "may be deemed to share voting and dispositive power" over the 18,422,720 shares. The disclosure is clear about the absence of sole voting/dispositive power, which is important for understanding potential influence versus control.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

CoreWeave, Inc.

(Name of Issuer)

Class A common stock, par value $0.000005 per share

(Title of Class of Securities)

21873S108

(CUSIP Number)

06/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 21873S108

1

Names of Reporting Persons

KOPACC LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 18,422,720.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 18,422,720.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

18,422,720.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.3 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: Row 11: Based on an aggregate total of 345,997,406 shares of the Issuer's Class A common stock outstanding upon completion of its initial public offering, as reported by the Issuer in its final prospectus dated March 27, 2025, filed pursuant to Rule 424(b)(4) with the Securities and Exchange Commission on March 31, 2025 (the "Prospectus").

SCHEDULE 13G

CUSIP No. 21873S108

1

Names of Reporting Persons

Stephen S. Jamison

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 18,422,720.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 18,422,720.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

18,422,720.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.3 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: Rows 6, 8: Includes 18,422,720 shares of Class A common stock held directly by KOPACC, LLC ("KOPACC"). KOPACC is managed by Koppenberg Management LLC. Stephen Jamison controls 100% of the voting interests of Koppenberg Management LLC and may be deemed to share voting and dispositive power over the securities held by KOPACC. Row 11: Based on an aggregate total of 345,997,406 shares of the Issuer's Class A common stock outstanding upon completion of its initial public offering, as reported by the Issuer in the Prospectus.

SCHEDULE 13G

CUSIP No. 21873S108

1

Names of Reporting Persons

Wesley J. Jamison

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 18,422,720.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 18,422,720.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

18,422,720.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.3 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: Rows 6, 8: Includes 18,422,720 shares of Class A common stock held directly by KOPACC. KOPACC is managed by Koppenberg Management LLC which is managed by Luchetti Street Investment Management LLC. Wesley Jamison is the manager and indirect sole owner of Luchetti Street Investment Management LLC and may be deemed to share voting and dispositive power over the securities held by KOPACC. Row 11: Based on an aggregate total of 345,997,406 shares of the Issuer's Class A common stock outstanding upon completion of its initial public offering, as reported by the Issuer in the Prospectus.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: CoreWeave, Inc.
(b)	Address of issuer's principal executive offices: 290 W. MT. PLEASANT AVENUE, SUITE 4100, LIVINGSTON, NEW JERSEY, 07039
Item 2.
(a)	Name of person filing: This statement is filed on behalf of each of the following persons (collectively, the "Reporting Persons"): KOPACC, LLC ("KOPACC") Stephen S. Jamison ("Stephen Jamison") Wesley J. Jamison ("Wesley Jamison")
(b)	Address or principal business office or, if none, residence: The address of the principal business office for all Reporting Persons is: 1270 E 70th Street, Unit 2220, New York, NY 10021.
(c)	Citizenship: KOPACC is a Delaware limited liability company. Stephen Jamison and Wesley Jamison are citizens of the United States of America.
(d)	Title of class of securities: Class A common stock, par value $0.000005 per share
(e)	CUSIP No.: 21873S108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: As of June 30, 2025, KOPACC beneficially owns 18,422,720 shares of Class A common stock. As of June 30, 2025, Stephen Jamison may be deemed to beneficially own 18,422,720 shares of Class A common stock. As of June 30, 2025, Wesley Jamison may be deemed to beneficially own 18,422,720 shares of Class A common stock.
(b)	Percent of class: KOPACC: 5.3% Stephen Jamison: 5.3% Wesley Jamison 5.3%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: KOPACC: 0 Stephen Jamison: 0 Wesley Jamison: 0
	(ii) Shared power to vote or to direct the vote: KOPACC: 18,422,720 Stephen Jamison: 18,422,720 Wesley Jamison: 18,422,720
	(iii) Sole power to dispose or to direct the disposition of: KOPACC: 0 Stephen Jamison: 0 Wesley Jamison: 0
	(iv) Shared power to dispose or to direct the disposition of: KOPACC: 18,422,720 Stephen Jamison: 18,422,720 Wesley Jamison: 18,422,720
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.	Certifications:
	Not Applicable

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

KOPACC LLC

Signature:	Wesley Jamison
Name/Title:	Manager of Luchetti Street Investment Management LLC in its capacity as manager of Koppenberg Management LLC in its capacity as manager of KOPACC LLC
Date:	08/11/2025

Stephen S. Jamison

Signature:	Stephen S. Jamison
Name/Title:	Stephen S. Jamison
Date:	08/11/2025

Wesley J. Jamison

Signature:	Wesley J. Jamison
Name/Title:	Wesley J. Jamison
Date:	08/11/2025

FAQ

What stake does KOPACC LLC report in CoreWeave (CRWV)?

KOPACC LLC reports beneficial ownership of 18,422,720 shares of Class A common stock, representing 5.3% of the Class A shares outstanding.

Who may be deemed to share voting and dispositive power over the shares?

Stephen S. Jamison and Wesley J. Jamison are disclosed as persons who may be deemed to share voting and dispositive power through the relevant management entities.

Does any reporting person have sole voting or dispositive power?

No. The filing reports 0 shares with sole voting power and 0 shares with sole dispositive power for each reporting person; all 18,422,720 shares are reported with shared voting and dispositive power.

On what share count is the 5.3% figure based?

The percentage is calculated using an aggregate total of 345,997,406 Class A shares outstanding as reported in the Issuer's prospectus.

Which entity directly holds the reported shares?

The shares are held directly by KOPACC, LLC, as stated in the filing.