---
title: "COOK JOHN S — Ownership Dossier"
canonical: https://whiteintel.dev/entity/0ff72028-e270-57f7-93b4-83f494bdec84
json: https://whiteintel.dev/api/public/dossier/0ff72028-e270-57f7-93b4-83f494bdec84
identifier: sec:0001353569
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# COOK JOHN S

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001353569`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/0ff72028-e270-57f7-93b4-83f494bdec84  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/0ff72028-e270-57f7-93b4-83f494bdec84  

## Ownership & control

### Holdings / subsidiaries

- **HORNBECK LEEVAC MARINE SERVICES INC** (officer) — https://whiteintel.dev/entity/233298f6-d334-5ae7-943c-10dfc296ea6b

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **COOK JOHN S**. Human view: https://whiteintel.dev/entity/0ff72028-e270-57f7-93b4-83f494bdec84 · Structured JSON: https://whiteintel.dev/api/public/dossier/0ff72028-e270-57f7-93b4-83f494bdec84._

_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"._