---
title: "WEBSTER STEPHEN W — Ownership Dossier"
canonical: https://whiteintel.dev/entity/62b90019-4c00-5c15-8b5d-7cbcf05abdd4
json: https://whiteintel.dev/api/public/dossier/62b90019-4c00-5c15-8b5d-7cbcf05abdd4
identifier: sec:0001438421
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# WEBSTER STEPHEN W

**Type:** Company  
**Jurisdiction:** US  
**Identifier:** `sec:0001438421`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/62b90019-4c00-5c15-8b5d-7cbcf05abdd4  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/62b90019-4c00-5c15-8b5d-7cbcf05abdd4  

## Ownership & control

### Holdings / subsidiaries

- **Cullinan Therapeutics, Inc.** (director) — https://whiteintel.dev/entity/e103e223-6420-5795-bce5-450261fac1da
- **NextCure, Inc.** (director) — https://whiteintel.dev/entity/9ca3c9dd-a242-52f5-8674-8665135ac144
- **Eloxx Pharmaceuticals, Inc.** (director) — https://whiteintel.dev/entity/9ba1d7fb-a520-56e2-819a-5e2e6eb659ac
- **GRITSTONE BIO, INC.** (director) — https://whiteintel.dev/entity/29bca7db-ff91-51a1-a198-3791a5315073
- **TCR2 THERAPEUTICS INC.** (director) — https://whiteintel.dev/entity/f5d5d0ad-b59c-58de-9c7e-fc8dbefdcc32
- **NABRIVA THERAPEUTICS AG** (director) — https://whiteintel.dev/entity/0f236cf1-6e54-5979-bc9f-49ca354d0992
- **Viking Therapeutics, Inc.** (director) — https://whiteintel.dev/entity/14807009-cad6-54df-a194-6c96b14f74a8
- **SPARK THERAPEUTICS, INC.** (officer) — https://whiteintel.dev/entity/b04b64c0-8599-5332-a83b-9b3643690dbd
- **NABRIVA THERAPEUTICS LEGACY PLC** (director) — https://whiteintel.dev/entity/c24eb886-e225-59c7-bac3-9952eeed75a5
- **OPTIMER PHARMACEUTICALS INC** (officer) — https://whiteintel.dev/entity/6bdd52a4-4099-584e-aa17-89c2acc4ee20
- **ADOLOR CORP** (officer) — https://whiteintel.dev/entity/5a9fb915-ed75-5410-8809-88dae879266c
- **HEARUSA INC** (director) — https://whiteintel.dev/entity/e28ca3a7-279c-558d-ae87-b0133fd1bc5e

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **WEBSTER STEPHEN W**. Human view: https://whiteintel.dev/entity/62b90019-4c00-5c15-8b5d-7cbcf05abdd4 · Structured JSON: https://whiteintel.dev/api/public/dossier/62b90019-4c00-5c15-8b5d-7cbcf05abdd4._

_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"._