As of November 6, 2026, 5 holders' latest Schedule 13D or 13G filings report owning 5% or more of Yorkville Acquisition Corp. The largest reported stake is Yorkville Acquisition Sponsor LLC's, at 25.88%. 17 filings are on record since July 3, 2025 (Schedule 13D, July 3, 2025).
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Key facts
- · Reporting person: Mizuho Financial Group, Inc. · Sole voting: 1,565,425 · Shared voting: 0 · Sole dispositive: 1,565,425 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-13
- · Holder: Anson Funds Management LP · Percent: 0% · SCHEDULE 13G/A
- · Holder: Mizuho Financial Group, Inc. · Percent: 7.2% · SCHEDULE 13G
- · Holder: Harraden Circle Investments, LLC · Percent: 0% · SCHEDULE 13G/A
- · Holder: W.R. Berkley Corporation · Percent: 9.2% · SCHEDULE 13G
Yorkville Acquisition Corp. has 17 Schedule 13D or 13G filings on record since 2025-07-03. 5 holders' latest filing reports 5% or more of common shares. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Yorkville Acquisition Sponsor LLC | 25.88% | 6,101,825 | SCHEDULE 13D, 2025-07-03 | 2025-06-26 |
| W.R. Berkley Corporation | 9.2% | 1,645,570 | SCHEDULE 13G, 2026-05-08 | 2026-03-31 |
| Mizuho Financial Group, Inc. | 8.8% | 1,565,425 | SCHEDULE 13G/A, 2026-08-13 | 2026-06-30 |
| Meteora Capital, LLC | 6.03% | 1,074,686 | SCHEDULE 13G, 2025-08-14 | 2025-06-30 |
| Decagon Asset Management LLP | 5.81% | 1,035,316 | SCHEDULE 13G, 2025-11-20 | 2025-09-30 |
| Harraden Circle Investments, LLC | 0% | 0 | SCHEDULE 13G/A, 2026-05-14 | 2026-03-31 |
| Anson Funds Management LP | 0% | 0 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 |
| J. Goldman & Co LP | 0% | 0 | SCHEDULE 13G/A, 2025-11-14 | 2025-09-30 |
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More on Yorkville Acquisition Corp. and the records around it.
Yorkville Acquisition Corp. elsewhere on the record
- Leadership changes Apr 2026
- Who owns it
Companies that share a holder
- J. Goldman & Co LP also filed stake reports on 11 other companies: Andersen Group Inc. (Aug 2026), Grocery Outlet Holding Corp. (Aug 2026), Daedalus Special Acquisition Corp. (May 2026)
- Decagon Asset Management LLP also filed stake reports on 14 other companies: Oaktree Acquisition Corp. III Life Sciences (Aug 2026), Alpex Acquisition Corp (Aug 2026), APEX Tech Acquisition Inc. (Aug 2026)
- Anson Funds Management LP also filed stake reports on 36 other companies: 22nd Century Group, Inc. (Aug 2026), Imperial Petroleum Inc. (Aug 2026), K Wave Media Ltd. (Aug 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Mizuho Financial Group, Inc. | 1,565,425 | 0 | 1,565,425 | 0 | SCHEDULE 13G/A, 2026-08-13 |
The latest filing identifies Yorkville Acquisition Corp. by CUSIP G98659116 and gives its principal executive office as 1012 Springfield Avenue, Mountainside, NJ 07092 (SCHEDULE 13G/A, 2026-08-13).
Purpose of Transaction (Item 4)
Yorkville Acquisition Sponsor LLC
In connection with the organization of the Issuer, on March 5, 2025, 5,750,000 Class B Ordinary Shares (the "Founder Shares") were purchased by the Sponsor for the amount of $25,000, pursuant to a Securities Subscription Agreement, dated as of March 5, 2025, by and between the Sponsor and the Issuer (the "Securities Subscription Agreement"), as more fully described in Item 6 of this Schedule 13D which information is incorporated herein by reference. On June 30, 2025, simultaneously with the consummation of the Issuer's Initial Public Offering (the "IPO"), the Sponsor purchased 351,825 units ("Placement Units") of the Issuer at $10.00 per Placement Unit, pursuant to a Private Placement Units Purchase Agreement, dated as of June 26, 2025, by and between the Issuer and the Sponsor (the "Placement Units Purchase Agreement"), as more fully described in Item 6 of this Schedule 13D, which information is incorporated herein by reference. Each Placement Unit consists of one Class A Ordinary Share and one-third of a warrant, with each whole warrant exercisable into one Class A ordinary share at an exercise price of $11.50, subject to adjustment, commencing 30 days following the consummation of the Issuer's initial business combination (as described more fully in the Issuer's Final Prospectus dated June 26, 2025). The Ordinary Shares owned by the Reporting Persons have been acquired for investment purposes. The Reporting Persons may make further acquisitions of the Ordinary Shares from …The first part of Item 4 of the SCHEDULE 13D filed 2025-07-03; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-03 | Harraden Circle Investments, LLC | 5.73% | SCHEDULE 13G |
| 2025-07-03 | Yorkville Acquisition Sponsor LLC | 25.88% | SCHEDULE 13D |
| 2025-08-14 | Harraden Circle Investments, LLC | 7.35% | SCHEDULE 13G/A |
| 2025-08-14 | Anson Funds Management LP | 8.3% | SCHEDULE 13G/A |
| 2025-08-14 | J. Goldman & Co LP | 5.2% | SCHEDULE 13G |
| 2025-08-14 | Meteora Capital, LLC | 6.03% | SCHEDULE 13G |
| 2025-11-14 | Harraden Circle Investments, LLC | 9.04% | SCHEDULE 13G/A |
| 2025-11-14 | Anson Funds Management LP | 9.9% | SCHEDULE 13G/A |
| 2025-11-14 | J. Goldman & Co LP | 0% | SCHEDULE 13G/A |
| 2025-11-20 | Decagon Asset Management LLP | 5.81% | SCHEDULE 13G |
| 2025-11-25 | Anson Funds Management LP | 8.3% | SCHEDULE 13G/A |
| 2026-02-17 | Anson Funds Management LP | 9.9% | SCHEDULE 13G/A |
| 2026-05-08 | W.R. Berkley Corporation | 9.2% | SCHEDULE 13G |
| 2026-05-14 | Mizuho Financial Group, Inc. | 7.2% | SCHEDULE 13G |
| 2026-05-14 | Harraden Circle Investments, LLC | 0% | SCHEDULE 13G/A |
| 2026-05-15 | Anson Funds Management LP | 0% | SCHEDULE 13G/A |
| 2026-08-13 | Mizuho Financial Group, Inc. | 8.8% | SCHEDULE 13G/A |
Questions about who owns Yorkville Acquisition Corp.
Who owns Yorkville Acquisition Corp.?
On this page, 5 holders' latest ownership filings report 5% or more of Yorkville Acquisition Corp.: Yorkville Acquisition Sponsor LLC (25.88%, Schedule 13D, filed 2025-07-03), W.R. Berkley Corporation (9.2%, Schedule 13G, filed 2026-05-08), Mizuho Financial Group, Inc. (8.8%, Schedule 13G/A, filed 2026-08-13), Meteora Capital, LLC (6.03%, Schedule 13G, filed 2025-08-14) and Decagon Asset Management LLP (5.81%, Schedule 13G, filed 2025-11-20).
Who are the largest shareholders of Yorkville Acquisition Corp.?
By the share each holder's latest filing reports, the largest holders of Yorkville Acquisition Corp. on this page are Yorkville Acquisition Sponsor LLC (25.88%), W.R. Berkley Corporation (9.2%) and Mizuho Financial Group, Inc. (8.8%).
When did Yorkville Acquisition Sponsor LLC buy into Yorkville Acquisition Corp.?
The filings give report dates, not purchase dates. The earliest filing from Yorkville Acquisition Sponsor LLC on this page is the Schedule 13D, filed 2025-07-03, reporting 25.88%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 17 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Yorkville Acquisition Corp.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| April 24, 2026 | Leadership change: Kevin McGurn departs, Chief Executive Officer, and 1 more | — | Leadership changes | Source |
| June 30, 2025 | IPO filing, Form 424B4 | — | IPO filings | Source |
| June 6, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| April 16, 2025 | IPO filing, Form S-1 | — | IPO filings | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.