---
title: "CAMBRIDGE ANTIBODY TECHNOLOGY GROUP LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/c678c471-d990-534c-9fa7-2b102658f290
json: https://whiteintel.dev/api/public/dossier/c678c471-d990-534c-9fa7-2b102658f290
identifier: oo:GB-COH-03234033
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# CAMBRIDGE ANTIBODY TECHNOLOGY GROUP LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-03234033`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/c678c471-d990-534c-9fa7-2b102658f290  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/c678c471-d990-534c-9fa7-2b102658f290  

## Ownership & control

### Owners / controllers

- **ASTRAZENECA TREASURY LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/2763a136-67ee-56fe-abd4-5d5b1cf5dbff
- **Astrazeneca Treasury Limited** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/7f4279b9-5df2-4e84-9390-1359ded0a5a4

### Holdings / subsidiaries

- **MEDIMMUNE LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/6ceca3a6-fa5d-42dc-8221-f37b901f9eb8

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

A **10-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.

## Company profile (live · UK Companies House)

- **Company number:** `03234033`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1996-08-05
- **Registered office:** 1 Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge, CB2 0AA, United Kingdom
- **SIC:** 72190

### Officers

- JOHNSTONE, Camilla Jane — secretary · appointed 2019-09-06
- BOWDEN, Matthew Shaun — director · British · appointed 2019-02-27
- COLLINS, Iain Alistair — director · British · appointed 2017-05-31
- TATTERSALL, Hannah Victoria — director · British · appointed 2025-05-01
- CONACHER, Matthew Ian — secretary · appointed 2017-03-16 · resigned 2019-09-06
- HOSKINS, Justin Wilbert — secretary · British · appointed 2005-03-31 · resigned 2006-06-30
- KEMP, Adrian Charles Noel — secretary · British · appointed 2009-01-01 · resigned 2017-03-16
- MELLETT, Diane — secretary · British · appointed 1997-12-12 · resigned 2005-03-31
- MUSKER, Graeme Harold Rankine — secretary · British · appointed 2006-06-30 · resigned 2008-12-31
- NIXON, Anthony Michael — secretary · British · appointed 1996-08-22 · resigned 1997-12-12
- MITRE SECRETARIES LIMITED — corporate nominee secretary · appointed 1996-08-05 · resigned 1996-08-22
- ASTON, John Christopher — director · British · appointed 1996-10-18 · resigned 2006-06-30
- ASTON, Roger — director · British · appointed 1996-12-20 · resigned 1997-12-31
- BICKER, Uwe, Professor — director · German · appointed 1999-02-06 · resigned 2006-02-03
- BRIMICOMBE, Ian Martin David — director · British · appointed 2006-06-22 · resigned 2017-05-31
- BROWN, John Robert, Dr — director · British · appointed 2005-09-12 · resigned 2006-06-30
- CHAMBRE, Peter Alan — director · British · appointed 2002-04-08 · resigned 2006-06-30
- CHISWELL, David — director · British · appointed 1996-08-22 · resigned 2002-03-31
- CUMMING, Alistair Cameron David — director · British · appointed 1998-03-01 · resigned 1998-11-29
- FOGHT, James Loren — director · American · appointed 1996-12-20 · resigned 2003-02-07

### Beneficial owners (Persons with Significant Control)

- [Astrazeneca Treasury Limited](https://whiteintel.dev/entity/7f4279b9-5df2-4e84-9390-1359ded0a5a4) — 75–100% shares · corporate PSC · England — since 2016-04-06

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/03234033
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/03234033

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **CAMBRIDGE ANTIBODY TECHNOLOGY GROUP LIMITED** — https://whiteintel.dev/entity/c678c471-d990-534c-9fa7-2b102658f290 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **CAMBRIDGE ANTIBODY TECHNOLOGY GROUP LIMITED**. Human view: https://whiteintel.dev/entity/c678c471-d990-534c-9fa7-2b102658f290 · Structured JSON: https://whiteintel.dev/api/public/dossier/c678c471-d990-534c-9fa7-2b102658f290._

_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"._