Comparable stake leader
Rithm Acquisition Corp Sponsor LLC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002047497.
Comparable stake leader
Rithm Acquisition Corp Sponsor LLC
Disclosed value leader
Rithm Acquisition Corp Sponsor LLC
Comparable rows
49/50
Latest evidence
31 Mar 2026
Ownership snapshot
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Quick read
49 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Rithm Acquisition Corp Sponsor LLC |
13D/G
3/4/5
10%+ Owner
|
22%
|
$63,350,000
6,335,000 shares
|
$0 | 30 Sep 2025 |
| Empyrean Capital Partners, LP |
13D/G
13F
Company
|
9.4%
|
$23,192,000
2,230,000 shares
|
+$8,741,065 | 31 Mar 2026 |
| Magnetar Financial LLC |
13F
13D/G
Company
|
8.4%
from 13D/G
|
$20,730,600
1,980,000 shares
|
— | 31 Mar 2026 |
| METEORA CAPITAL, LLC |
13D/G
|
6.4%
|
$15,891,782
1,528,056 shares
|
-$2,654,392 | 31 Mar 2026 |
| Hudson Bay Capital Management LP |
13D/G
13F
Company
|
6.3%
|
$15,594,800
1,499,500 shares
|
-$4,425,200 | 31 Mar 2026 |
| AQR CAPITAL MANAGEMENT LLC |
13D/G
|
6.2%
|
$14,907,297
1,462,934 shares
|
-$4,453,703 | 30 Jun 2025 |
| GOLDMAN SACHS GROUP INC |
13D/G
13F
THE GOLDMAN SACHS GROUP, INC. · Company
|
4.8%
|
$11,879,719
1,158,997 shares
|
-$956,950 | 30 Sep 2025 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND |
13D/G
13F
Company
|
2%
|
$4,891,200
480,000 shares
|
-$15,285,000 | 30 Jun 2025 |
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 01 Aug 2025.
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Showing 1-6 of 6 reporting-owner rows connected to Rithm Acquisition Corp.. Open a relationship link for the CIK-to-CIK filing trail.
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Rithm Acquisition Corp Sponsor LLC | 10%+ Owner | Mixed | 26 Feb 2025 | |||
| Michael Nierenberg | CHIEF EXECUTIVE OFFICER, Director | Mixed | 26 Feb 2025 | |||
| Varun Wadhawan | Chief Financial Officer | Mixed | 26 Feb 2025 | |||
| Gary Kalk | Director | Mixed | 26 Feb 2025 | |||
| Elizabeth C. Fascitelli | Director | Mixed | 26 Feb 2025 | |||
| Ellen Schubert | Director | Mixed | 28 Feb 2025 |
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||