---
title: "GREENCASTLE MM LLP — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ea028064-3eea-5aa3-b913-e1f29d74bff4
json: https://whiteintel.dev/api/public/dossier/ea028064-3eea-5aa3-b913-e1f29d74bff4
identifier: oo:GB-COH-OC432255
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# GREENCASTLE MM LLP

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-OC432255`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ea028064-3eea-5aa3-b913-e1f29d74bff4  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ea028064-3eea-5aa3-b913-e1f29d74bff4  

## Ownership & control

### Owners / controllers

- **Mr David Graeme Fenneck Sefton** (beneficial owner) — 75% — https://whiteintel.dev/entity/07e5265e-5bf5-53e5-bb53-3af95678344b
- **Mr David Graeme Fenneck Sefton** (beneficial owner) — https://whiteintel.dev/entity/78ac59a5-0a61-4d31-affe-5e4f4ecf0083
- **LINTON CAPITAL LLP** (beneficial owner) — https://whiteintel.dev/entity/ed472b08-cdc8-5c76-8f62-59266a764770
- **Greencastle Acquisition Limited** (beneficial owner) — https://whiteintel.dev/entity/a1163b49-2073-4c10-83f8-18efcb135521

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

1. **Mr David Graeme Fenneck Sefton** — beneficial owner 75% → *GREENCASTLE MM LLP*
1. **Mr David Graeme Fenneck Sefton** — beneficial owner → *GREENCASTLE MM LLP*
1. **LINTON CAPITAL LLP** — beneficial owner → *GREENCASTLE MM LLP*
1. **Greencastle Acquisition Limited** — beneficial owner → *GREENCASTLE MM LLP*
2. **Mr David Graeme Fenneck Sefton** — beneficial owner 100% → *LINTON CAPITAL LLP*
2. **Mr David Graeme Fenneck Sefton** — beneficial owner → *LINTON CAPITAL LLP*

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/OC432255

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **GREENCASTLE MM LLP**. Human view: https://whiteintel.dev/entity/ea028064-3eea-5aa3-b913-e1f29d74bff4 · Structured JSON: https://whiteintel.dev/api/public/dossier/ea028064-3eea-5aa3-b913-e1f29d74bff4._

_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"._