---
title: "PIEN HOWARD H — Ownership Dossier"
canonical: https://whiteintel.dev/entity/40fe2135-ed0d-5fd7-8a13-b25de6678256
json: https://whiteintel.dev/api/public/dossier/40fe2135-ed0d-5fd7-8a13-b25de6678256
identifier: sec:0001187152
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# PIEN HOWARD H

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001187152`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/40fe2135-ed0d-5fd7-8a13-b25de6678256  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/40fe2135-ed0d-5fd7-8a13-b25de6678256  

## Ownership & control

### Holdings / subsidiaries

- **ACERAGEN, INC.** (director) — https://whiteintel.dev/entity/6856ac9f-9213-5aa5-9a2a-6094683786a7
- **IMMUNOGEN INC** (director) — https://whiteintel.dev/entity/cb1098c2-089b-52bd-b7ac-5895da43ec52
- **JUNO THERAPEUTICS, INC.** (director) — https://whiteintel.dev/entity/ee37a819-dc05-53fe-b631-3ece235ac249
- **Sage Therapeutics, Inc.** (director) — https://whiteintel.dev/entity/e1a91a56-0391-5d6e-9f93-0da42f8dd395
- **Vanda Pharmaceuticals Inc.** (director) — https://whiteintel.dev/entity/fd0a99e9-8a40-5e51-b104-33af8fce8d8a
- **VIROPHARMA INC** (director) — https://whiteintel.dev/entity/e244d635-37f3-5b82-8697-589e79914154
- **EMAIL REAL ESTATE COM INC** (director) — https://whiteintel.dev/entity/8c5bd255-a96e-5ec7-9d57-587839ec2296
- **MEDAREX INC** (officer) — https://whiteintel.dev/entity/e3d4cb17-b54a-5086-854f-8084212ce559
- **MEDAREX INC** (director) — https://whiteintel.dev/entity/e3d4cb17-b54a-5086-854f-8084212ce559
- **IMMUNOGEN INC** (other) — https://whiteintel.dev/entity/cb1098c2-089b-52bd-b7ac-5895da43ec52
- **CHIRON CORP** (director) — https://whiteintel.dev/entity/37a52eff-fbbd-5128-9c22-eadcfda111ed
- **CHIRON CORP** (officer) — https://whiteintel.dev/entity/37a52eff-fbbd-5128-9c22-eadcfda111ed

## 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 **PIEN HOWARD H** — https://whiteintel.dev/entity/40fe2135-ed0d-5fd7-8a13-b25de6678256 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **PIEN HOWARD H**. Human view: https://whiteintel.dev/entity/40fe2135-ed0d-5fd7-8a13-b25de6678256 · Structured JSON: https://whiteintel.dev/api/public/dossier/40fe2135-ed0d-5fd7-8a13-b25de6678256._

_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"._