---
title: "HEN STEWART — Ownership Dossier"
canonical: https://whiteintel.dev/entity/b41847ac-e6b7-57ea-b5bb-ccb789391637
json: https://whiteintel.dev/api/public/dossier/b41847ac-e6b7-57ea-b5bb-ccb789391637
identifier: sec:0001215241
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# HEN STEWART

**Type:** Company  
**Jurisdiction:** US  
**Identifier:** `sec:0001215241`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/b41847ac-e6b7-57ea-b5bb-ccb789391637  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/b41847ac-e6b7-57ea-b5bb-ccb789391637  

## Ownership & control

### Holdings / subsidiaries

- **NEUROGEN CORP** (director) — https://whiteintel.dev/entity/c8486ba7-ad25-5aea-8a1c-de4d59b0404a
- **ALTUS PHARMACEUTICALS INC.** (director) — https://whiteintel.dev/entity/811aa943-09a9-53f5-a4bc-198bb79c9a2f
- **ALTUS PHARMACEUTICALS INC.** (tenpercentowner) — https://whiteintel.dev/entity/811aa943-09a9-53f5-a4bc-198bb79c9a2f
- **ALLOS THERAPEUTICS** (director) — https://whiteintel.dev/entity/4e00b74d-beb6-5d0f-ba45-4ae0f366fc77
- **NEUROGEN CORP** (other) — https://whiteintel.dev/entity/c8486ba7-ad25-5aea-8a1c-de4d59b0404a

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **HEN STEWART**. Human view: https://whiteintel.dev/entity/b41847ac-e6b7-57ea-b5bb-ccb789391637 · Structured JSON: https://whiteintel.dev/api/public/dossier/b41847ac-e6b7-57ea-b5bb-ccb789391637._

_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"._