As of November 6, 2026, 6 holders' latest Schedule 13D or 13G filings report owning 5% or more of United Acquisition Corp. I. The largest reported stake is United Acquisition SPAC LLC's, at 25%. 9 filings are on record since February 5, 2026 (Schedule 13D/A, March 17, 2026).
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Key facts
- · Reporting person: Picton Mahoney Asset Management · Sole voting: 599,996 · Shared voting: 0 · Sole dispositive: 599,996 · Shared dispositive: 0 · SCHEDULE 13G, 2026-10-20
- · Reporting person: Harraden Circle Investments, LLC · Sole voting: 0 · Shared voting: 1,044,996 · Sole dispositive: 0 · Shared dispositive: 1,044,996 · SCHEDULE 13G/A, 2026-08-14
- · Holder: Magnetar Financial LLC · Percent: 9.56% · SCHEDULE 13G
- · Holder: MMCAP International Inc. SPC · Percent: 9.1% · SCHEDULE 13G/A
- · Holder: United Acquisition SPAC LLC · Percent: 25% · SCHEDULE 13D/A
United Acquisition Corp. I has 9 Schedule 13D or 13G filings on record since 2026-02-05. 6 holders' latest filing reports 5% or more of class a ordinary shares, par value $0.0001. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| United Acquisition SPAC LLC | 25% | 3,469,557 | SCHEDULE 13D/A, 2026-03-17 | 2026-03-14 |
| Harraden Circle Investments, LLC | 9.99% | 1,044,996 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| Magnetar Financial LLC | 9.56% | 1,000,000 | SCHEDULE 13G, 2026-05-13 | 2026-03-31 |
| MMCAP International Inc. SPC | 9.1% | 1,050,000 | SCHEDULE 13G/A, 2026-05-11 | 2026-03-31 |
| RP Investment Advisors LP | 9.1% | 925,000 | SCHEDULE 13G, 2026-02-20 | 2026-02-12 |
| Picton Mahoney Asset Management | 5.74% | 599,996 | SCHEDULE 13G, 2026-10-20 | 2026-09-30 |
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More on United Acquisition Corp. I and the records around it.
Companies that share a holder
- RP Investment Advisors LP also filed stake reports on 17 other companies: Yorkville International Capital Corp. (Sep 2026), Amanat Acquisition Corp. (Aug 2026), ProCap Acquisition Corp (Aug 2026)
- Picton Mahoney Asset Management also filed stake reports on 20 other companies: Blue Water Acquisition Corp. III (Oct 2026), Launch One Acquisition Corp. (Oct 2026), Pono Capital Four, Inc. (Oct 2026)
- MMCAP International Inc. SPC also filed stake reports on 52 other companies: BHAV Acquisition Corp II (Nov 2026), Haymaker Acquisition Corp V (Sep 2026), Thunder Bridge Capital Partners V, Ltd. (Aug 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Harraden Circle Investments, LLC | 0 | 1,044,996 | 0 | 1,044,996 | SCHEDULE 13G/A, 2026-08-14 |
| Frederick V. Fortmiller, Jr. | 0 | 1,044,996 | 0 | 1,044,996 | SCHEDULE 13G/A, 2026-08-14 |
| Picton Mahoney Asset Management | 599,996 | 0 | 599,996 | 0 | SCHEDULE 13G, 2026-10-20 |
The latest filing identifies United Acquisition Corp. I by CUSIP G92ALM108 and gives its principal executive office as 7100 W Camino Real, Suite 302-48, Boca Raton, FL 33433 (SCHEDULE 13G, 2026-10-20).
Purpose of Transaction (Item 4)
United Acquisition SPAC LLC
Item 4 is hereby amended and restated as follows: In connection with the organization of the Issuer, on October 24, 2025, 2,875,000 Class B Ordinary Shares (the "Founder Shares") were purchased by the Sponsor for the amount of $25,000, pursuant to a Securities Purchase Agreement, dated as of October 24, 2025, by and between the Sponsor and the Issuer (the "Founder Share Purchase Agreement"), as more fully described in Item 6 of the Original Schedule 13D, which information is incorporated herein by reference. In November 2025, the Issuer effected a share dividend, resulting in the Sponsor holding an aggregate of 3,833,333 Founder Shares. Subsequently, the Sponsor transferred 25,000 Founder Shares to four of the Issuer's independent directors at their original purchase price of $0.007 per share, resulting in the Sponsor holding an aggregate of 3,733,333 Founder Shares, up to 500,000 of which were subject to forfeiture to the extent that the underwriters' over-allotment option in connection with the IPO was not exercised in full. On January 30, 2026, simultaneously with the consummation of the Issuer's IPO, the Sponsor purchased 175,000 units ("Private Placement Units") of the Issuer at $10.00 per Private Placement Unit, pursuant to the Private Placement Securities Purchase Agreement, dated as of January 28, 2026, as more fully described in Item 6 of this Amendment No. 1, which information is incorporated herein by reference. On February 12, 2026, in connection with the …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-03-17; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-02-05 | MMCAP International Inc. SPC | 7.7% | SCHEDULE 13G |
| 2026-02-05 | Harraden Circle Investments, LLC | 9.73% | SCHEDULE 13G |
| 2026-02-19 | United Acquisition SPAC LLC | 27.3% | SCHEDULE 13D |
| 2026-02-20 | RP Investment Advisors LP | 9.1% | SCHEDULE 13G |
| 2026-03-17 | United Acquisition SPAC LLC | 25% | SCHEDULE 13D/A |
| 2026-05-11 | MMCAP International Inc. SPC | 9.1% | SCHEDULE 13G/A |
| 2026-05-13 | Magnetar Financial LLC | 9.56% | SCHEDULE 13G |
| 2026-08-14 | Harraden Circle Investments, LLC | 9.99% | SCHEDULE 13G/A |
| 2026-10-20 | Picton Mahoney Asset Management | 5.74% | SCHEDULE 13G |
Questions about who owns United Acquisition Corp. I
Who owns United Acquisition Corp. I?
On this page, 6 holders' latest ownership filings report 5% or more of United Acquisition Corp. I: United Acquisition SPAC LLC (25%, Schedule 13D/A, filed 2026-03-17), Harraden Circle Investments, LLC (9.99%, Schedule 13G/A, filed 2026-08-14), Magnetar Financial LLC (9.56%, Schedule 13G, filed 2026-05-13), MMCAP International Inc. SPC (9.1%, Schedule 13G/A, filed 2026-05-11) and RP Investment Advisors LP (9.1%, Schedule 13G, filed 2026-02-20); 1 more is listed above.
Who are the largest shareholders of United Acquisition Corp. I?
By the share each holder's latest filing reports, the largest holders of United Acquisition Corp. I on this page are United Acquisition SPAC LLC (25%), Harraden Circle Investments, LLC (9.99%) and Magnetar Financial LLC (9.56%).
When did United Acquisition SPAC LLC buy into United Acquisition Corp. I?
The filings give report dates, not purchase dates. The earliest filing from United Acquisition SPAC LLC on this page is the Schedule 13D, filed 2026-02-19, reporting 27.3%; its latest, Schedule 13D/A filed 2026-03-17, reports 25%.
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%); 9 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.
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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.