---
title: "RMG ACQUISITION CORP. III — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e1f990ea-b96d-5f7b-bd19-fa9ce1456905
json: https://whiteintel.dev/api/public/dossier/e1f990ea-b96d-5f7b-bd19-fa9ce1456905
identifier: sec:0001838108
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# RMG ACQUISITION CORP. III

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001838108`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/e1f990ea-b96d-5f7b-bd19-fa9ce1456905  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e1f990ea-b96d-5f7b-bd19-fa9ce1456905  

## Ownership & control

### Owners / controllers

- **RMG SPONSOR III, LLC** (tenpercentowner) — https://whiteintel.dev/entity/3be8394a-62a5-5c75-8eab-128a1cfcdaca
- **MANCINI ROBERT S.** (tenpercentowner) — https://whiteintel.dev/entity/eca2d3bf-aea5-5163-8e3a-78470729fd52
- **CARPENTER DAVID JAMES** (tenpercentowner) — https://whiteintel.dev/entity/31251caa-2697-58ea-9e4d-6abda45308dc
- **KASSIN PHILIP** (tenpercentowner) — https://whiteintel.dev/entity/8c4f26dd-e8df-5e0d-80c8-fd8e7605426f
- **MKC INVESTMENTS LLC** (tenpercentowner) — https://whiteintel.dev/entity/39382199-d080-53bf-a322-54e0b8a6b19a

### UBO chain (walk to the ultimate owner)

A **17-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **RMG ACQUISITION CORP. III**. Human view: https://whiteintel.dev/entity/e1f990ea-b96d-5f7b-bd19-fa9ce1456905 · Structured JSON: https://whiteintel.dev/api/public/dossier/e1f990ea-b96d-5f7b-bd19-fa9ce1456905._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._