As of November 6, 2026, 6 holders' latest Schedule 13D or 13G filings report owning 5% or more of Rithm Acquisition Corp. The largest reported stake is Rithm Acquisition Corp Sponsor LLC's, at 21.5%. 18 filings are on record since August 8, 2025 (Schedule 13G, November 5, 2025).
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Key facts
- · Reporting person: Fort Baker Capital Management LP · Sole voting: 0 · Shared voting: 1,950,405 · Sole dispositive: 0 · Shared dispositive: 1,950,405 · SCHEDULE 13G, 2026-08-14
- · Reporting person: Meteora Capital, LLC · Sole voting: 0 · Shared voting: 1,425,933 · Sole dispositive: 0 · Shared dispositive: 1,425,933 · SCHEDULE 13G/A, 2026-08-14
- · Holder: Empyrean Capital Partners, LP · Percent: 9.43% · SCHEDULE 13G/A
- · Holder: First Trust Capital Management L.P. · Percent: 1.53% · SCHEDULE 13G/A
- · Holder: Meteora Capital, LLC · Percent: 6.45% · SCHEDULE 13G/A
Rithm Acquisition Corp. has 18 Schedule 13D or 13G filings on record since 2025-08-08. 6 holders' latest filing reports 5% or more of class a common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Rithm Acquisition Corp Sponsor LLC | 21.5% | 6,335,000 | SCHEDULE 13G, 2025-11-05 | 2025-09-30 |
| Empyrean Capital Partners, LP | 9.43% | 2,230,000 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 |
| Fort Baker Capital Management LP | 8.2% | 1,950,405 | SCHEDULE 13G, 2026-08-14 | 2026-06-30 |
| Hudson Bay Capital Management LP | 6.34% | 1,499,500 | SCHEDULE 13G/A, 2026-05-11 | 2026-03-31 |
| AQR Capital Management, LLC | 6.18% | 1,462,934 | SCHEDULE 13G/A, 2025-08-14 | 2025-06-30 |
| Meteora Capital, LLC | 6.03% | 1,425,933 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| The Goldman Sachs Group, Inc. | 4.8% | 1,158,997 | SCHEDULE 13G/A, 2025-11-12 | 2025-09-30 |
| Healthcare of Ontario Pension Plan Trust Fund | 2% | 480,000 | SCHEDULE 13G/A, 2025-08-13 | 2025-06-30 |
| First Trust Capital Management L.P. | 1.53% | 363,144 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 |
| Lighthouse Investment Partners, LLC | 0.49% | 113,200 | SCHEDULE 13G/A, 2025-11-14 | 2025-09-30 |
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More on Rithm Acquisition Corp. and the records around it.
Companies that share a holder
- Lighthouse Investment Partners, LLC also filed stake reports on 8 other companies: GigCapital9 Corp. (Aug 2026), Cohen Circle Acquisition Corp. II (May 2026), Hennessy Capital Investment Corp. VII (May 2026)
- Empyrean Capital Partners, LP also filed stake reports on 9 other companies: Churchill Capital Corp XI (Aug 2026), Churchill Capital Corp. XII (Aug 2026), Altice USA, Inc. (Aug 2026)
- Fort Baker Capital Management LP also filed stake reports on 26 other companies: Agriculture & Natural Solutions Acquisition Corp (Aug 2026), Bleichroeder Acquisition Corp. II (Aug 2026), Cartesian Growth Corp III (Aug 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Fort Baker Capital Management LP | 0 | 1,950,405 | 0 | 1,950,405 | SCHEDULE 13G, 2026-08-14 |
| Steven Patrick Pigott | 0 | 1,950,405 | 0 | 1,950,405 | SCHEDULE 13G, 2026-08-14 |
| Fort Baker Capital, LLC | 0 | 1,950,405 | 0 | 1,950,405 | SCHEDULE 13G, 2026-08-14 |
| Meteora Capital, LLC | 0 | 1,425,933 | 0 | 1,425,933 | SCHEDULE 13G/A, 2026-08-14 |
The latest filing identifies Rithm Acquisition Corp. by CUSIP G75751100 and gives its principal executive office as 799 BROADWAY, 8TH FLOOR, NEW YORK, NY 10003 (SCHEDULE 13G, 2026-08-14).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-08 | Hudson Bay Capital Management LP | 8.14% | SCHEDULE 13G |
| 2025-08-13 | Healthcare of Ontario Pension Plan Trust Fund | 2% | SCHEDULE 13G/A |
| 2025-08-14 | The Goldman Sachs Group, Inc. | 5.3% | SCHEDULE 13G |
| 2025-08-14 | AQR Capital Management, LLC | 6.18% | SCHEDULE 13G/A |
| 2025-08-14 | First Trust Capital Management L.P. | 6.39% | SCHEDULE 13G |
| 2025-11-05 | Rithm Acquisition Corp Sponsor LLC | 21.5% | SCHEDULE 13G |
| 2025-11-12 | The Goldman Sachs Group, Inc. | 4.8% | SCHEDULE 13G/A |
| 2025-11-14 | Lighthouse Investment Partners, LLC | 0.49% | SCHEDULE 13G/A |
| 2025-11-14 | First Trust Capital Management L.P. | 5.12% | SCHEDULE 13G/A |
| 2025-11-14 | Meteora Capital, LLC | 7.21% | SCHEDULE 13G |
| 2026-02-13 | Meteora Capital, LLC | 7.54% | SCHEDULE 13G/A |
| 2026-02-17 | Empyrean Capital Partners, LP | 5.87% | SCHEDULE 13G |
| 2026-05-11 | Hudson Bay Capital Management LP | 6.34% | SCHEDULE 13G/A |
| 2026-05-15 | Empyrean Capital Partners, LP | 9.43% | SCHEDULE 13G/A |
| 2026-05-15 | First Trust Capital Management L.P. | 1.53% | SCHEDULE 13G/A |
| 2026-05-15 | Meteora Capital, LLC | 6.45% | SCHEDULE 13G/A |
| 2026-08-14 | Fort Baker Capital Management LP | 8.2% | SCHEDULE 13G |
| 2026-08-14 | Meteora Capital, LLC | 6.03% | SCHEDULE 13G/A |
Questions about who owns Rithm Acquisition Corp.
Who owns Rithm Acquisition Corp.?
On this page, 6 holders' latest ownership filings report 5% or more of Rithm Acquisition Corp.: Rithm Acquisition Corp Sponsor LLC (21.5%, Schedule 13G, filed 2025-11-05), Empyrean Capital Partners, LP (9.43%, Schedule 13G/A, filed 2026-05-15), Fort Baker Capital Management LP (8.2%, Schedule 13G, filed 2026-08-14), Hudson Bay Capital Management LP (6.34%, Schedule 13G/A, filed 2026-05-11) and AQR Capital Management, LLC (6.18%, Schedule 13G/A, filed 2025-08-14); 1 more is listed above.
Who are the largest shareholders of Rithm Acquisition Corp.?
By the share each holder's latest filing reports, the largest holders of Rithm Acquisition Corp. on this page are Rithm Acquisition Corp Sponsor LLC (21.5%), Empyrean Capital Partners, LP (9.43%) and Fort Baker Capital Management LP (8.2%).
When did Rithm Acquisition Corp Sponsor LLC buy into Rithm Acquisition Corp.?
The filings give report dates, not purchase dates. The earliest filing from Rithm Acquisition Corp Sponsor LLC on this page is the Schedule 13G, filed 2025-11-05, reporting 21.5%.
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%); 18 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 Rithm Acquisition Corp.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| February 27, 2025 | IPO filing, Form 424B4 | — | IPO filings | Source |
| February 24, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| February 21, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| February 3, 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.