---
title: "COOK STEPHEN — Ownership Dossier"
canonical: https://whiteintel.dev/entity/340f4ad1-e6e6-5303-b292-76ba01dd68b6
json: https://whiteintel.dev/api/public/dossier/340f4ad1-e6e6-5303-b292-76ba01dd68b6
identifier: sec:0001268619
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# COOK STEPHEN

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001268619`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/340f4ad1-e6e6-5303-b292-76ba01dd68b6  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/340f4ad1-e6e6-5303-b292-76ba01dd68b6  

## Ownership & control

### Holdings / subsidiaries

- **XM SATELLITE RADIO HOLDINGS INC** (officer) — https://whiteintel.dev/entity/e94a86d9-29a2-5c25-ac3a-f7e1b5854ce2
- **SIRIUS XM HOLDINGS INC.** (officer) — https://whiteintel.dev/entity/7e2a92de-2deb-5281-bfd5-e48a9bc59312

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **COOK STEPHEN**. Human view: https://whiteintel.dev/entity/340f4ad1-e6e6-5303-b292-76ba01dd68b6 · Structured JSON: https://whiteintel.dev/api/public/dossier/340f4ad1-e6e6-5303-b292-76ba01dd68b6._

_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"._