---
title: "MACNAUGHTON JAMES H — Ownership Dossier"
canonical: https://whiteintel.dev/entity/31ec4df9-fc8e-5ebf-a644-e6e4ef7708ff
json: https://whiteintel.dev/api/public/dossier/31ec4df9-fc8e-5ebf-a644-e6e4ef7708ff
identifier: sec:0001431549
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MACNAUGHTON JAMES H

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001431549`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/31ec4df9-fc8e-5ebf-a644-e6e4ef7708ff  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/31ec4df9-fc8e-5ebf-a644-e6e4ef7708ff  

## Ownership & control

### Holdings / subsidiaries

- **ALTERRA CAPITAL HOLDINGS LTD** (director) — https://whiteintel.dev/entity/2aa17d2c-9bb1-50a4-a332-9254153b2d9c
- **PRIMUS GUARANTY LTD** (director) — https://whiteintel.dev/entity/908a3bbf-b013-5a53-8662-73862d3dafa2

## 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 **MACNAUGHTON JAMES H** — https://whiteintel.dev/entity/31ec4df9-fc8e-5ebf-a644-e6e4ef7708ff · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MACNAUGHTON JAMES H**. Human view: https://whiteintel.dev/entity/31ec4df9-fc8e-5ebf-a644-e6e4ef7708ff · Structured JSON: https://whiteintel.dev/api/public/dossier/31ec4df9-fc8e-5ebf-a644-e6e4ef7708ff._

_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"._