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Form 4 Yorkville Acquisition For: May 04 Filed by: ANGELO MARK

July 21, 2026 12:59 PM EDT
FORM 4 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
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person *
ANGELO MARK
(Last) (First) (Middle)
C/O YORKVILLE ACQUISITION CORP
1012 SPRINGFIELD AVENUE
(Street)
MOUNTAINSIDE NJ 07092
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Yorkville Acquisition Corp. [ MCGA ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
05/04/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
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
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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Convertible Working Capital Note (1) 05/04/2026   A   50,000     (1)   (2) Class A ordinary shares 50,000 (3) 50,000 I Yorkville Acquisition Sponsor, LLC (4)
Convertible Working Capital Note (1) 05/04/2026   A   16,666     (1)   (2) Warrants 16,666 (3) 16,666 I Yorkville Acquisition Sponsor, LLC (4)
Explanation of Responses:
1. On May 4, 2026, the Issuer entered into an Amended and Restated Working Capital Note (the "Note") promising to pay Yorkville Acquisition Sponsor, LLC (the "Sponsor") $500,000. All amounts due under the Note may be converted into 50,000 units. Each unit consists of one Class A ordinary share and one-third of one warrant to purchase one Class A ordinary share, resulting in an aggregate of 50,000 Class A ordinary shares and warrants to purchase an additional 16,666 Class A ordinary shares of the Issuer at the discretion of the Sponsor upon the consummation of the business combinations. The warrants shall have the same terms and conditions as the warrants issued in the Issuer's initial public offering. The acquisition of the Note by the Sponsor, and through it, the beneficial acquisition of the Note by the Sponsor's members, is an exempt transaction under Rule 16b-3, promulgated by the U.S. Securities and Exchange Commission pursuant to the Securities Act of 1934, as amended.
2. The principal balance of the Note shall be payable by the Issuer on the earlier of the date on which the Issuer consummates its initial business combination or the date that the winding up of the Issuer is effective, and is convertible at the Sponsor's election upon the consummation of the initial business combination.
3. The Issuer's Class A ordinary shares and warrants are described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-286569).
4. Yorkville Advisors Global, LP ("Yorkville LP") is the manager of the Sponsor and holds voting and investment discretion over the securities held by the Sponsor. YA II PN, Ltd. ("YA II PN") is a member of the Sponsor. Yorkville LP is the investment manager of YA II PN, and Yorkville Advisors Global II, LLC ("Yorkville LLC") is the General Partner of Yorkville LP. Mr. Angelo serves as President of Yorkville LLC and makes all investment decisions for YA II PN. As such, Mr. Angelo may be deemed to have beneficial ownership of the securities held by the Sponsor. Mr. Angelo disclaims any beneficial ownership of the reported securities, except to the extent of his pecuniary interest therein.
Mark Angelo 07/21/2026
** Signature of Reporting Person Date
Mark Angelo, Yorkville Acquisition Sponsor, LLC 01/21/2026
** Signature of Reporting Person Date
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.

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