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[SCHEDULE 13D] Yorkville Acquisition Corp. Unit SEC Filing

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SCHEDULE 13D
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If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).






SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes 351,825 of the Issuer's Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and 5,750,000 of the Issuer's Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and, together with the Class A Ordinary Shares, the "Ordinary Shares"), which are automatically convertible into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, or at any time prior to the Issuer's initial business combination, at the option of the holder, subject to adjustment as more fully described under the heading "Description of Securities--Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-286569). The 351,825 Class A Ordinary Shares are included in the placement units (each unit consisting of one Class A Ordinary Share and one-third of one warrant , each whole warrant exercisable into one Class A Ordinary Share 30 days following the consummation of the Issuer's initial business combination), acquired pursuant to a Private Placement Units Purchase Agreement by and between the Issuer and Yorkville Acquisition Sponsor LLC (the "Sponsor"). YA II PN, Ltd. ("YA II PN") is the sole managing member of the Sponsor and has voting and investment discretion over the securities held by the Sponsor. YA II PN is beneficially owned by YA Global Investments II (U.S.), LP ("YA Feeder"), whose general partner is YAII GP, LP ("YA GP"). The general partner of YA GP is YAII GP II, LLC ("Yorkville GP"). Yorkville Advisors Global, LP ("Yorkville LP") serves as the investment manager to both YA II PN and SC-Sigma Global Partners, LP ("SC-Sigma"), an investor in YA II PN. Yorkville Advisors Global II, LLC ("Yorkville LLC") is the general partner of Yorkville LP. Mark Angelo, President and Managing Member of Yorkville LLC and a Director of the Issuer, makes all investment decisions for YA II PN. Each of the Reporting Persons may be considered affiliates and may be deemed to have beneficial ownership of the Class B Ordinary Shares held by the Sponsor. Each Reporting Person disclaims beneficial ownership of the reported shares except to the extent of any pecuniary interest therein, directly or indirectly.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes 351,825 of the Issuer's Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and 5,750,000 of the Issuer's Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and, together with the Class A Ordinary Shares, the "Ordinary Shares"), which are automatically convertible into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, or at any time prior to the Issuer's initial business combination, at the option of the holder, subject to adjustment as more fully described under the heading "Description of Securities--Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-286569). The 351,825 Class A Ordinary Shares are included in the placement units (each unit consisting of one Class A Ordinary Share and one-third of one warrant , each whole warrant exercisable into one Class A Ordinary Share 30 days following the consummation of the Issuer's initial business combination), acquired pursuant to a Private Placement Units Purchase Agreement by and between the Issuer and Yorkville Acquisition Sponsor LLC (the "Sponsor"). YA II PN, Ltd. ("YA II PN") is the sole managing member of the Sponsor and has voting and investment discretion over the securities held by the Sponsor. YA II PN is beneficially owned by YA Global Investments II (U.S.), LP ("YA Feeder"), whose general partner is YAII GP, LP ("YA GP"). The general partner of YA GP is YAII GP II, LLC ("Yorkville GP"). Yorkville Advisors Global, LP ("Yorkville LP") serves as the investment manager to both YA II PN and SC-Sigma Global Partners, LP ("SC-Sigma"), an investor in YA II PN. Yorkville Advisors Global II, LLC ("Yorkville LLC") is the general partner of Yorkville LP. Mark Angelo, President and Managing Member of Yorkville LLC and a Director of the Issuer, makes all investment decisions for YA II PN. Each of the Reporting Persons may be considered affiliates and may be deemed to have beneficial ownership of the Class B Ordinary Shares held by the Sponsor. Each Reporting Person disclaims beneficial ownership of the reported shares except to the extent of any pecuniary interest therein, directly or indirectly.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes 351,825 of the Issuer's Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and 5,750,000 of the Issuer's Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and, together with the Class A Ordinary Shares, the "Ordinary Shares"), which are automatically convertible into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, or at any time prior to the Issuer's initial business combination, at the option of the holder, subject to adjustment as more fully described under the heading "Description of Securities--Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-286569). The 351,825 Class A Ordinary Shares are included in the placement units (each unit consisting of one Class A Ordinary Share and one-third of one warrant , each whole warrant exercisable into one Class A Ordinary Share 30 days following the consummation of the Issuer's initial business combination), acquired pursuant to a Private Placement Units Purchase Agreement by and between the Issuer and Yorkville Acquisition Sponsor LLC (the "Sponsor"). YA II PN, Ltd. ("YA II PN") is the sole managing member of the Sponsor and has voting and investment discretion over the securities held by the Sponsor. YA II PN is beneficially owned by YA Global Investments II (U.S.), LP ("YA Feeder"), whose general partner is YAII GP, LP ("YA GP"). The general partner of YA GP is YAII GP II, LLC ("Yorkville GP"). Yorkville Advisors Global, LP ("Yorkville LP") serves as the investment manager to both YA II PN and SC-Sigma Global Partners, LP ("SC-Sigma"), an investor in YA II PN. Yorkville Advisors Global II, LLC ("Yorkville LLC") is the general partner of Yorkville LP. Mark Angelo, President and Managing Member of Yorkville LLC and a Director of the Issuer, makes all investment decisions for YA II PN. Each of the Reporting Persons may be considered affiliates and may be deemed to have beneficial ownership of the Class B Ordinary Shares held by the Sponsor. Each Reporting Person disclaims beneficial ownership of the reported shares except to the extent of any pecuniary interest therein, directly or indirectly.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes 351,825 of the Issuer's Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and 5,750,000 of the Issuer's Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and, together with the Class A Ordinary Shares, the "Ordinary Shares"), which are automatically convertible into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, or at any time prior to the Issuer's initial business combination, at the option of the holder, subject to adjustment as more fully described under the heading "Description of Securities--Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-286569). The 351,825 Class A Ordinary Shares are included in the placement units (each unit consisting of one Class A Ordinary Share and one-third of one warrant , each whole warrant exercisable into one Class A Ordinary Share 30 days following the consummation of the Issuer's initial business combination), acquired pursuant to a Private Placement Units Purchase Agreement by and between the Issuer and Yorkville Acquisition Sponsor LLC (the "Sponsor"). YA II PN, Ltd. ("YA II PN") is the sole managing member of the Sponsor and has voting and investment discretion over the securities held by the Sponsor. YA II PN is beneficially owned by YA Global Investments II (U.S.), LP ("YA Feeder"), whose general partner is YAII GP, LP ("YA GP"). The general partner of YA GP is YAII GP II, LLC ("Yorkville GP"). Yorkville Advisors Global, LP ("Yorkville LP") serves as the investment manager to both YA II PN and SC-Sigma Global Partners, LP ("SC-Sigma"), an investor in YA II PN. Yorkville Advisors Global II, LLC ("Yorkville LLC") is the general partner of Yorkville LP. Mark Angelo, President and Managing Member of Yorkville LLC and a Director of the Issuer, makes all investment decisions for YA II PN. Each of the Reporting Persons may be considered affiliates and may be deemed to have beneficial ownership of the Class B Ordinary Shares held by the Sponsor. Each Reporting Person disclaims beneficial ownership of the reported shares except to the extent of any pecuniary interest therein, directly or indirectly.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes 351,825 of the Issuer's Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and 5,750,000 of the Issuer's Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and, together with the Class A Ordinary Shares, the "Ordinary Shares"), which are automatically convertible into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, or at any time prior to the Issuer's initial business combination, at the option of the holder, subject to adjustment as more fully described under the heading "Description of Securities--Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-286569). The 351,825 Class A Ordinary Shares are included in the placement units (each unit consisting of one Class A Ordinary Share and one-third of one warrant , each whole warrant exercisable into one Class A Ordinary Share 30 days following the consummation of the Issuer's initial business combination), acquired pursuant to a Private Placement Units Purchase Agreement by and between the Issuer and Yorkville Acquisition Sponsor LLC (the "Sponsor"). YA II PN, Ltd. ("YA II PN") is the sole managing member of the Sponsor and has voting and investment discretion over the securities held by the Sponsor. YA II PN is beneficially owned by YA Global Investments II (U.S.), LP ("YA Feeder"), whose general partner is YAII GP, LP ("YA GP"). The general partner of YA GP is YAII GP II, LLC ("Yorkville GP"). Yorkville Advisors Global, LP ("Yorkville LP") serves as the investment manager to both YA II PN and SC-Sigma Global Partners, LP ("SC-Sigma"), an investor in YA II PN. Yorkville Advisors Global II, LLC ("Yorkville LLC") is the general partner of Yorkville LP. Mark Angelo, President and Managing Member of Yorkville LLC and a Director of the Issuer, makes all investment decisions for YA II PN. Each of the Reporting Persons may be considered affiliates and may be deemed to have beneficial ownership of the Class B Ordinary Shares held by the Sponsor. Each Reporting Person disclaims beneficial ownership of the reported shares except to the extent of any pecuniary interest therein, directly or indirectly.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes 351,825 of the Issuer's Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and 5,750,000 of the Issuer's Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and, together with the Class A Ordinary Shares, the "Ordinary Shares"), which are automatically convertible into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, or at any time prior to the Issuer's initial business combination, at the option of the holder, subject to adjustment as more fully described under the heading "Description of Securities--Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-286569). The 351,825 Class A Ordinary Shares are included in the placement units (each unit consisting of one Class A Ordinary Share and one-third of one warrant , each whole warrant exercisable into one Class A Ordinary Share 30 days following the consummation of the Issuer's initial business combination), acquired pursuant to a Private Placement Units Purchase Agreement by and between the Issuer and Yorkville Acquisition Sponsor LLC (the "Sponsor"). YA II PN, Ltd. ("YA II PN") is the sole managing member of the Sponsor and has voting and investment discretion over the securities held by the Sponsor. YA II PN is beneficially owned by YA Global Investments II (U.S.), LP ("YA Feeder"), whose general partner is YAII GP, LP ("YA GP"). The general partner of YA GP is YAII GP II, LLC ("Yorkville GP"). Yorkville Advisors Global, LP ("Yorkville LP") serves as the investment manager to both YA II PN and SC-Sigma Global Partners, LP ("SC-Sigma"), an investor in YA II PN. Yorkville Advisors Global II, LLC ("Yorkville LLC") is the general partner of Yorkville LP. Mark Angelo, President and Managing Member of Yorkville LLC and a Director of the Issuer, makes all investment decisions for YA II PN. Each of the Reporting Persons may be considered affiliates and may be deemed to have beneficial ownership of the Class B Ordinary Shares held by the Sponsor. Each Reporting Person disclaims beneficial ownership of the reported shares except to the extent of any pecuniary interest therein, directly or indirectly.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes 351,825 of the Issuer's Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and 5,750,000 of the Issuer's Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and, together with the Class A Ordinary Shares, the "Ordinary Shares"), which are automatically convertible into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, or at any time prior to the Issuer's initial business combination, at the option of the holder, subject to adjustment as more fully described under the heading "Description of Securities--Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-286569). The 351,825 Class A Ordinary Shares are included in the placement units (each unit consisting of one Class A Ordinary Share and one-third of one warrant , each whole warrant exercisable into one Class A Ordinary Share 30 days following the consummation of the Issuer's initial business combination), acquired pursuant to a Private Placement Units Purchase Agreement by and between the Issuer and Yorkville Acquisition Sponsor LLC (the "Sponsor"). YA II PN, Ltd. ("YA II PN") is the sole managing member of the Sponsor and has voting and investment discretion over the securities held by the Sponsor. YA II PN is beneficially owned by YA Global Investments II (U.S.), LP ("YA Feeder"), whose general partner is YAII GP, LP ("YA GP"). The general partner of YA GP is YAII GP II, LLC ("Yorkville GP"). Yorkville Advisors Global, LP ("Yorkville LP") serves as the investment manager to both YA II PN and SC-Sigma Global Partners, LP ("SC-Sigma"), an investor in YA II PN. Yorkville Advisors Global II, LLC ("Yorkville LLC") is the general partner of Yorkville LP. Mark Angelo, President and Managing Member of Yorkville LLC and a Director of the Issuer, makes all investment decisions for YA II PN. Each of the Reporting Persons may be considered affiliates and may be deemed to have beneficial ownership of the Class B Ordinary Shares held by the Sponsor. Each Reporting Person disclaims beneficial ownership of the reported shares except to the extent of any pecuniary interest therein, directly or indirectly.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes 351,825 of the Issuer's Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and 5,750,000 of the Issuer's Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and, together with the Class A Ordinary Shares, the "Ordinary Shares"), which are automatically convertible into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, or at any time prior to the Issuer's initial business combination, at the option of the holder, subject to adjustment as more fully described under the heading "Description of Securities--Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-286569). The 351,825 Class A Ordinary Shares are included in the placement units (each unit consisting of one Class A Ordinary Share and one-third of one warrant , each whole warrant exercisable into one Class A Ordinary Share 30 days following the consummation of the Issuer's initial business combination), acquired pursuant to a Private Placement Units Purchase Agreement by and between the Issuer and Yorkville Acquisition Sponsor LLC (the "Sponsor"). YA II PN, Ltd. ("YA II PN") is the sole managing member of the Sponsor and has voting and investment discretion over the securities held by the Sponsor. YA II PN is beneficially owned by YA Global Investments II (U.S.), LP ("YA Feeder"), whose general partner is YAII GP, LP ("YA GP"). The general partner of YA GP is YAII GP II, LLC ("Yorkville GP"). Yorkville Advisors Global, LP ("Yorkville LP") serves as the investment manager to both YA II PN and SC-Sigma Global Partners, LP ("SC-Sigma"), an investor in YA II PN. Yorkville Advisors Global II, LLC ("Yorkville LLC") is the general partner of Yorkville LP. Mark Angelo, President and Managing Member of Yorkville LLC and a Director of the Issuer, makes all investment decisions for YA II PN. Each of the Reporting Persons may be considered affiliates and may be deemed to have beneficial ownership of the Class B Ordinary Shares held by the Sponsor. Each Reporting Person disclaims beneficial ownership of the reported shares except to the extent of any pecuniary interest therein, directly or indirectly.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes 351,825 of the Issuer's Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and 5,750,000 of the Issuer's Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and, together with the Class A Ordinary Shares, the "Ordinary Shares"), which are automatically convertible into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, or at any time prior to the Issuer's initial business combination, at the option of the holder, subject to adjustment as more fully described under the heading "Description of Securities--Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-286569). The 351,825 Class A Ordinary Shares are included in the placement units (each unit consisting of one Class A Ordinary Share and one-third of one warrant , each whole warrant exercisable into one Class A Ordinary Share 30 days following the consummation of the Issuer's initial business combination), acquired pursuant to a Private Placement Units Purchase Agreement by and between the Issuer and Yorkville Acquisition Sponsor LLC (the "Sponsor"). YA II PN, Ltd. ("YA II PN") is the sole managing member of the Sponsor and has voting and investment discretion over the securities held by the Sponsor. YA II PN is beneficially owned by YA Global Investments II (U.S.), LP ("YA Feeder"), whose general partner is YAII GP, LP ("YA GP"). The general partner of YA GP is YAII GP II, LLC ("Yorkville GP"). Yorkville Advisors Global, LP ("Yorkville LP") serves as the investment manager to both YA II PN and SC-Sigma Global Partners, LP ("SC-Sigma"), an investor in YA II PN. Yorkville Advisors Global II, LLC ("Yorkville LLC") is the general partner of Yorkville LP. Mark Angelo, President and Managing Member of Yorkville LLC and a Director of the Issuer, makes all investment decisions for YA II PN. Each of the Reporting Persons may be considered affiliates and may be deemed to have beneficial ownership of the Class B Ordinary Shares held by the Sponsor. Each Reporting Person disclaims beneficial ownership of the reported shares except to the extent of any pecuniary interest therein, directly or indirectly.


SCHEDULE 13D


Yorkville Acquisition Sponsor LLC
Signature:/s/ Leslie Brault
Name/Title:Leslie Brault, Attorney-in-fact
Date:07/03/2025
YA II PN, Ltd.
Signature:/s/ David Gonzalez
Name/Title:David Gonzalez, General Counsel
Date:07/03/2025
YA Global Investments II (U.S.), LP
Signature:/s/ David Gonzalez
Name/Title:David Gonzalez, General Counsel
Date:07/03/2025
Yorkville Advisors Global, LP
Signature:/s/ David Gonzalez
Name/Title:David Gonzalez, General Counsel
Date:07/03/2025
Yorkville Advisors Global II, LLC
Signature:/s/ David Gonzalez
Name/Title:David Gonzalez, General Counsel
Date:07/03/2025
YAII GP, LP
Signature:/s/ David Gonzalez
Name/Title:David Gonzalez, General Counsel
Date:07/03/2025
YAII GP II, LLC
Signature:/s/ David Gonzalez
Name/Title:David Gonzalez, General Counsel
Date:07/03/2025
Mark Angelo
Signature:/s/ Leslie Brault
Name/Title:Leslie Brault, Attorney-in-fact
Date:07/03/2025
SC-Sigma Global Partners, LP
Signature:/s/ David Gonzalez
Name/Title:David Gonzalez, General Counsel
Date:07/03/2025