# Michael Nierenberg

> Alpha governed public record. Unknown, unavailable, and unpublished values are never inferred as zero.

## Record

| Field | Value |
| --- | --- |
| Representation | alpha-profile-markdown-v3 |
| Protocol | Alpha Governance Facts Protocol 0.1 |
| Schema | alpha.governance.entity.public.v1 |
| Record version | public-0 |
| Canonical entity | alpha:person:michael-nierenberg |
| Entity type | Person |
| Canonical URL | https://registry.alpha.ac/people/michael-nierenberg |
| Publication | PUBLISHED |
| Verification | corroborated |
| Verification schema | alpha-verification-states-v1 |
| Ownership | unclaimed |
| Published claims | 8 |
| Claims under review | 0 |
| Evidence records | 10 |
| Conflicts | 0 |
| Conflicts in internal review | 0 |
| Observed | 2026-09-02T14:29:48.324717+00:00 |
| Last reviewed | 2026-05-16T07:40:14.361+00:00 |

## Identity

- Legal name: Michael Nierenberg
- Display name: Michael Nierenberg

## Leadership

- NOT_ASSERTED

## Roles

- NOT_ASSERTED

## Governance

- PUBLISHED

## Board committees

- NOT_ASSERTED

## AI and ML experience

- AI and ML experience: not identified in the cited filing. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:michael-nierenberg:1.

## Cybersecurity experience

- Cybersecurity experience: not identified in the cited filing. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:michael-nierenberg:1.

## Executive company

- Executive at Rithm Acquisition Corp.. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:michael-nierenberg:8, alpha:evidence:person:michael-nierenberg:9, alpha:evidence:person:michael-nierenberg:10.
- Executive at Rithm Capital Corp.. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:michael-nierenberg:2, alpha:evidence:person:michael-nierenberg:3, alpha:evidence:person:michael-nierenberg:4, alpha:evidence:person:michael-nierenberg:5, alpha:evidence:person:michael-nierenberg:6, alpha:evidence:person:michael-nierenberg:1, alpha:evidence:person:michael-nierenberg:7.

## Executive title

- Executive title: Chairman and Chief Executive Officer. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:michael-nierenberg:8, alpha:evidence:person:michael-nierenberg:10, alpha:evidence:person:michael-nierenberg:9.
- Executive title: Chairman of the Board of Directors, Chief Executive Officer and President. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:michael-nierenberg:5, alpha:evidence:person:michael-nierenberg:7, alpha:evidence:person:michael-nierenberg:1, alpha:evidence:person:michael-nierenberg:3, alpha:evidence:person:michael-nierenberg:2, alpha:evidence:person:michael-nierenberg:4, alpha:evidence:person:michael-nierenberg:6.

## Other Company Role

- Michael Nierenberg is also linked to Rithm Capital Corp. as Chief Executive Officer, Chairman of the board of directors, and President.. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:michael-nierenberg:10.

## Technology background

- Technology background: not identified in the cited filing. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:michael-nierenberg:1.

## Coverage states

| Field | Value |
| --- | --- |
| Identity | PUBLISHED |
| Business | NOT_APPLICABLE |
| Leadership | NOT_ASSERTED |
| Board and committees | NOT_ASSERTED |
| Governance | PUBLISHED |
| Financials | NOT_APPLICABLE |
| Workforce | NOT_APPLICABLE |
| Ownership | NOT_APPLICABLE |
| Ratings | NOT_PUBLISHED |
| Market and index context | NOT_APPLICABLE |

## Public sources

- alpha:evidence:person:michael-nierenberg:1: [RITM-PF DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1556593/000110465926041536/tm2523978-2_def14a.htm).
- alpha:evidence:person:michael-nierenberg:2: [RITM-PB DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1556593/000110465926041536/tm2523978-2_def14a.htm).
- alpha:evidence:person:michael-nierenberg:3: [RITM-PC DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1556593/000110465926041536/tm2523978-2_def14a.htm).
- alpha:evidence:person:michael-nierenberg:4: [RITM-PA DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1556593/000110465926041536/tm2523978-2_def14a.htm).
- alpha:evidence:person:michael-nierenberg:5: [RITM DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1556593/000110465926041536/tm2523978-2_def14a.htm).
- alpha:evidence:person:michael-nierenberg:6: [RITM-PE DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1556593/000110465926041536/tm2523978-2_def14a.htm).
- alpha:evidence:person:michael-nierenberg:7: [RITM-PD DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1556593/000110465926041536/tm2523978-2_def14a.htm).
- alpha:evidence:person:michael-nierenberg:8: [RAC 10-K executive officers](https://www.sec.gov/Archives/edgar/data/2047497/000110465925123203/racun-20250930x10k.htm).
- alpha:evidence:person:michael-nierenberg:9: [RAC-UN 10-K executive officers](https://www.sec.gov/Archives/edgar/data/2047497/000110465925123203/racun-20250930x10k.htm).
- alpha:evidence:person:michael-nierenberg:10: [RAC-WT 10-K executive officers](https://www.sec.gov/Archives/edgar/data/2047497/000110465925123203/racun-20250930x10k.htm).

## Rights

| Field | Value |
| --- | --- |
| public_retrieval | allowed |
| agent_retrieval | allowed |
| redistribution | not_granted |
| model_training | not_granted |
| commercial_use | not_specified |
| relationship_pathfinding | not_granted |
| direct_contact | not_granted |

## Limitations

- Only permissioned public claims and evidence are included.
- Absence of a claim is not evidence that the underlying fact is false.
- Public retrieval does not grant model-training or redistribution rights.
- Private relationships and Council activity are excluded.

## Alternate representations

- [Canonical profile](https://registry.alpha.ac/people/michael-nierenberg)
- [Public Markdown](https://registry.alpha.ac/people/michael-nierenberg.md)
- [Public JSON](https://registry.alpha.ac/api/public/profiles/michael-nierenberg)
- [JSON-LD](https://registry.alpha.ac/api/public/profiles/michael-nierenberg?format=jsonld)
- MCP resource: `alpha://people/michael-nierenberg` at https://mcp.alpha.ac/mcp