Schedule 13G: J. Goldman Group Discloses 5.15% Holding in YORKU

Rhea-AI Filing Summary

Yorkville Acquisition Corp. Schedule 13G shows J. Goldman & Co., L.P., J. Goldman Capital Management, Inc. and Jay G. Goldman together beneficially own 800,000 Units, representing approximately 5.15% of the class. All three reporting persons disclose shared voting and shared dispositive power with no sole voting or dispositive power. The filing identifies the securities class as Units and provides the reporting persons' principal business address. The statement certifies the holdings were acquired and are held in the ordinary course of business and not to influence control.

Positive

• Material disclosure of ownership above the 5% reporting threshold (800,000 Units, ~5.15%).
• Clear identification of reporting persons and their shared voting and dispositive powers.

Negative

• No sole voting or dispositive power reported by any filing person, indicating no direct control over the issuer.

Insights

Financial Analyst

TL;DR Ownership exceeds the 5% reporting threshold but represents a non-controlling passive stake shared among affiliated parties.

The filing discloses an aggregate 800,000 Unit position equal to ~5.15% of the outstanding units held with shared voting and dispositive authority. For investors this is a material disclosure because it signals an institutional-affiliate stake above regulatory reporting thresholds, but the lack of sole voting or dispositive power indicates no direct control shift. The certification that holdings are in the ordinary course of business limits control implications.

Corporate Governance Expert

TL;DR Affiliated reporting persons disclose coordinated ownership yet no sole control, implying influence without control intent.

The statements by J. Goldman & Co., J. Goldman Capital Management and Jay G. Goldman identify shared power to vote and dispose of 800,000 Units. This structure commonly reflects managed fund holdings where decision rights are exercised collectively. The filing's certification that the position is not intended to influence control is important for governance analysis and reduces immediate takeover or control-change concerns.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Yorkville Acquisition Corp.

(Name of Issuer)

Unit

(Title of Class of Securities)

G98659108

(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. G98659108

1

Names of Reporting Persons

J. Goldman & Co LP

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 800,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 800,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

800,000.00

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)

5.2 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP No. G98659108

1

Names of Reporting Persons

J. Goldman Capital Management, Inc.

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 800,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 800,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

800,000.00

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)

5.2 %

12

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13G

CUSIP No. G98659108

1

Names of Reporting Persons

GOLDMAN JAY G

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 800,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 800,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

800,000.00

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)

5.2 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Yorkville Acquisition Corp.
(b)	Address of issuer's principal executive offices: 1012 SPRINGFIELD AVENUE, MOUNTAINSIDE, NEW JERSEY, 07092
Item 2.
(a)	Name of person filing: This Statement is filed by: (i) J. Goldman & Co., L.P. ("JGC") with respect the shares of the Company beneficially owned by J. Goldman Master Fund, L.P. ("JGMF") and J. Goldman Enhanced Master Fund, L.P. ("JGEMF"); (ii) J. Goldman Capital Management, Inc. ("JGCM") with respect to shares of the Company beneficially owned by JGMF and JGEMF; and (iii) Mr. Jay G. Goldman with respect to shares of the Company beneficially owned by JGMF and JGEMF.
(b)	Address or principal business office or, if none, residence: The address of the principal place of business office of JGC, JGCM and Mr. Goldman is c/o J. Goldman & Co., L.P., 510 Madison Avenue, 26th Floor, New York, NY 10022.
(c)	Citizenship: JGC and JGCM are organized under the laws of the State of Delaware. Mr. Goldman is a citizen of the United States of America.
(d)	Title of class of securities: Unit
(e)	CUSIP No.: G98659108
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: J. Goldman & Co., L.P. - 800,000 shares J. Goldman Capital Management, Inc. - 800,000 shares Jay. G. Goldman - 800,000 shares
(b)	Percent of class: J. Goldman & Co., L.P. - 5.15% J. Goldman Capital Management, Inc. - 5.15% Jay. G. Goldman - 5.15%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: J. Goldman & Co., L.P. - 0 J. Goldman Capital Management, Inc. - 0 Jay. G. Goldman - 0
	(ii) Shared power to vote or to direct the vote: J. Goldman & Co., L.P. - 800,000 shares J. Goldman Capital Management, Inc. - 800,000 shares Jay. G. Goldman - 800,000 shares
	(iii) Sole power to dispose or to direct the disposition of: J. Goldman & Co., L.P. - 0 J. Goldman Capital Management, Inc. - 0 Jay. G. Goldman - 0
	(iv) Shared power to dispose or to direct the disposition of: J. Goldman & Co., L.P. - 800,000 shares J. Goldman Capital Management, Inc. - 800,000 shares Jay. G. Goldman - 800,000 shares
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:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

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.

J. Goldman & Co LP

Signature:	Sagan A. Weiss
Name/Title:	CCO
Date:	08/14/2025

J. Goldman Capital Management, Inc.

Signature:	Jay G. Goldman
Name/Title:	Director
Date:	08/14/2025

GOLDMAN JAY G

Signature:	Jay G. Goldman
Name/Title:	N/A
Date:	08/14/2025

FAQ

How many Units of YORKU does J. Goldman & Co. beneficially own?

They report beneficial ownership of 800,000 Units of YORKU.

What percentage of YORKU does the filing represent?

The reported position represents approximately 5.15% of the Unit class.

Do the reporting persons have sole voting power over the Units?

No. The filing states they have shared voting power and shared dispositive power, with 0 sole voting or dispositive power.

Which entities and individuals filed this Schedule 13G for YORKU?

The filing was made by J. Goldman & Co., L.P., J. Goldman Capital Management, Inc. and Jay G. Goldman.

Was the position acquired to change or influence control of Yorkville Acquisition Corp.?

The filing certifies the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control.