---
title: "Olafsson Sigurdur O — Ownership Dossier"
canonical: https://whiteintel.dev/entity/2cef7740-b806-51e4-8324-33cd8a1757e9
json: https://whiteintel.dev/api/public/dossier/2cef7740-b806-51e4-8324-33cd8a1757e9
identifier: sec:0001499481
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Olafsson Sigurdur O

**Type:** Person  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001499481`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/2cef7740-b806-51e4-8324-33cd8a1757e9  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/2cef7740-b806-51e4-8324-33cd8a1757e9  

## Ownership & control

### Holdings / subsidiaries

- **Mallinckrodt plc** (officer) — https://whiteintel.dev/entity/ef1186ca-f830-5137-9539-a6ab864038dd
- **Mallinckrodt plc** (officer) — https://whiteintel.dev/entity/ef1186ca-f830-5137-9539-a6ab864038dd
- **Mallinckrodt plc** (officer) — https://whiteintel.dev/entity/ef1186ca-f830-5137-9539-a6ab864038dd
- **Mallinckrodt plc** (director) — https://whiteintel.dev/entity/ef1186ca-f830-5137-9539-a6ab864038dd
- **PFENEX INC.** (director) — https://whiteintel.dev/entity/aa1167e0-b4b8-55de-9407-869cf3823766
- **ACTAVIS, INC.** (officer) — https://whiteintel.dev/entity/9bb6ccf1-a5a4-5386-a586-0db4b09fd8d4
- **ACTAVIS LTD** (officer) — https://whiteintel.dev/entity/eb11c763-e17a-5d3e-9ef7-da0e3c98d06b
- **ACTAVIS LTD** (director) — https://whiteintel.dev/entity/eb11c763-e17a-5d3e-9ef7-da0e3c98d06b

## 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 **Olafsson Sigurdur O** — https://whiteintel.dev/entity/2cef7740-b806-51e4-8324-33cd8a1757e9 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Olafsson Sigurdur O**. Human view: https://whiteintel.dev/entity/2cef7740-b806-51e4-8324-33cd8a1757e9 · Structured JSON: https://whiteintel.dev/api/public/dossier/2cef7740-b806-51e4-8324-33cd8a1757e9._

_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"._