---
title: "PHARMASSET INC — Ownership Dossier"
canonical: https://whiteintel.dev/entity/92cb38df-5935-50f1-96ff-92378029c8fd
json: https://whiteintel.dev/api/public/dossier/92cb38df-5935-50f1-96ff-92378029c8fd
identifier: sec:0001301081
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# PHARMASSET INC

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001301081`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/92cb38df-5935-50f1-96ff-92378029c8fd  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/92cb38df-5935-50f1-96ff-92378029c8fd  

## Ownership & control

### Owners / controllers

- **QVT FUND LP** (tenpercentowner) — https://whiteintel.dev/entity/b2396c33-abac-571e-95b5-7b5731f9007d
- **QVT ASSOCIATES GP LLC** (tenpercentowner) — https://whiteintel.dev/entity/01259d5d-ef62-57ab-9930-3e2e08a2b10e
- **SCHINAZI RAYMOND F** (tenpercentowner) — https://whiteintel.dev/entity/4cfe2b90-106f-5c2b-93c1-7ef0f506dd0e
- **BAB BIO VENTURES NV** (tenpercentowner) — https://whiteintel.dev/entity/e4eccb29-175a-5047-94e9-f299bfbcce41
- **HENNER DENNIS** (tenpercentowner) — https://whiteintel.dev/entity/7f9f8828-19ec-5f98-9179-f20d20d9018b
- **BB BIOVENTURES L P** (tenpercentowner) — https://whiteintel.dev/entity/012e4051-3486-534f-b936-34a8c40761a8
- **SIMON NICHOLAS J III** (tenpercentowner) — https://whiteintel.dev/entity/66e3f131-24f7-5e09-b02f-618751111db0
- **EVNIN LUKE** (tenpercentowner) — https://whiteintel.dev/entity/e4d341cd-cb07-58bc-8144-c8413904c78b
- **BAB BIO VENTURES LLP** (tenpercentowner) — https://whiteintel.dev/entity/a2de472c-a1df-5dcd-9a23-aa2438176ff6
- **STEINMETZ MICHAEL** (tenpercentowner) — https://whiteintel.dev/entity/c30b57e9-e0a9-5270-8715-4251b813099f
- **GADICKE ANSBERT** (tenpercentowner) — https://whiteintel.dev/entity/3d6fb5d6-4514-5ca9-bf31-0f4073abbd96
- **MPM BIO VENTURES PARALLEL FUND L P** (tenpercentowner) — https://whiteintel.dev/entity/1f5c6dd4-3842-5fc5-a25e-074ae6d0705d
- **MPM ASSET MANAGEMENT INVESTORS 1999 LLC** (tenpercentowner) — https://whiteintel.dev/entity/fcc3d111-fc42-5cf2-b910-86cf2381ea3e
- **MPM BIO VENTURES I LP** (tenpercentowner) — https://whiteintel.dev/entity/4870cae2-8508-5290-be25-dbc6c031eb5d
- **MPM BIO VENTURES I LLC** (tenpercentowner) — https://whiteintel.dev/entity/425ff539-fe10-5357-ad0f-41114f8738be
- **GALAKATOS NICHOLAS** (tenpercentowner) — https://whiteintel.dev/entity/f8b5e14d-e4c2-5521-8a62-36456b1e72ad
- **WHEELER KURT** (tenpercentowner) — https://whiteintel.dev/entity/433b023a-4de1-5c4a-a8a5-47dd6d34dace
- **MPM BIO VENTURES III LLC** (tenpercentowner) — https://whiteintel.dev/entity/37219560-4b15-55be-8b14-4c36eac8e4ad
- **MPM BIO VENTURES III GMBH & CO** (tenpercentowner) — https://whiteintel.dev/entity/46f8c6f4-e0fc-51b0-bf9c-77afa2715b6e
- **MPM ASSET MANAGEMENT INVESTORS 2004 BVIII LLC** (tenpercentowner) — https://whiteintel.dev/entity/184ac3ce-14bc-540a-9b1a-4265cf44a4aa
- **MPM BIO VENTURES III LP** (tenpercentowner) — https://whiteintel.dev/entity/c5b6e85e-9a0f-53cf-8e49-12aae3ac3acf
- **MPM BIO VENTURES III GP LP** (tenpercentowner) — https://whiteintel.dev/entity/7e05515f-b237-5e32-a556-29fdf0da6367
- **MPM BIO VENTURES III PARALLEL FUND** (tenpercentowner) — https://whiteintel.dev/entity/5f1b62b8-bccd-5449-ad39-da7d43f655c0
- **MPM BIO VENTURES III QP LP** (tenpercentowner) — https://whiteintel.dev/entity/722ca404-15c8-5f3e-8b76-2ea99ca80ad3
- **BURRILL INDIANA LIFE SCIENCES CAPITAL FUND, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/22e7d2fb-6426-5926-9662-894a74b4dfb3
- **BURRILL & CO (INDIANA GP), LLC** (tenpercentowner) — https://whiteintel.dev/entity/aa500ac2-e8ca-5c05-9780-c270f964da01
- **TVM V LIFE SCIENCE VENTURES GMBH & CO KG** (tenpercentowner) — https://whiteintel.dev/entity/9352a40c-6425-5e88-aeb3-6e02dc4bb0e6
- **TVM V LIFE SCIENCE VENTURES MANAGEMENT GMBH & CO. KG** (tenpercentowner) — https://whiteintel.dev/entity/f90972e0-15e6-56dd-8532-bb9e18cb33a4
- **BURRILL LIFE SCIENCES CAPITAL FUND LP** (tenpercentowner) — https://whiteintel.dev/entity/6cee458f-cc43-57c5-80b9-4530f626f0a1
- **BURRILL & CO (LIFE SCIENCES GP), LLC** (tenpercentowner) — https://whiteintel.dev/entity/f43204fe-33a8-5927-b187-586525a9122b
- **TVM IV GMBH & CO KG** (tenpercentowner) — https://whiteintel.dev/entity/83f136c8-0e64-55e0-8b6c-41fcd2491240
- **TVM IV MANAGEMENT GMBH & CO. KG** (tenpercentowner) — https://whiteintel.dev/entity/dcd40d3a-ee2d-51a9-81e9-b0fcb9dbe877

### UBO chain (walk to the ultimate owner)

A **58-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **PHARMASSET INC**. Human view: https://whiteintel.dev/entity/92cb38df-5935-50f1-96ff-92378029c8fd · Structured JSON: https://whiteintel.dev/api/public/dossier/92cb38df-5935-50f1-96ff-92378029c8fd._

_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"._