---
title: "AUXILIUM PHARMACEUTICALS INC — Ownership Dossier"
canonical: https://whiteintel.dev/entity/352b9eca-23d8-5e62-bd3e-cb392e7e642c
json: https://whiteintel.dev/api/public/dossier/352b9eca-23d8-5e62-bd3e-cb392e7e642c
identifier: sec:0001182129
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# AUXILIUM PHARMACEUTICALS INC

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001182129`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/352b9eca-23d8-5e62-bd3e-cb392e7e642c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/352b9eca-23d8-5e62-bd3e-cb392e7e642c  

## Ownership & control

### Owners / controllers

- **DEERFIELD INTERNATIONAL MASTER FUND, L.P.** (tenpercentownerother) — https://whiteintel.dev/entity/7c900670-9f79-5080-b7a8-e287d8ed6b94
- **DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)** (tenpercentownerother) — https://whiteintel.dev/entity/31a5caa4-05d6-5739-b04b-16a6222da289
- **DEERFIELD CAPITAL LP** (tenpercentownerother) — https://whiteintel.dev/entity/5f3c11a7-c53a-58c1-ba4f-1ad86e04c791
- **Flynn James E** (tenpercentownerother) — https://whiteintel.dev/entity/e41579a6-248b-5454-a089-66f9a7c69ae7
- **DEERFIELD PARTNERS, L.P.** (tenpercentownerother) — https://whiteintel.dev/entity/65f05e41-ef95-517f-9b59-b6fc681aa121
- **14159 CAPITAL (GP), LLC** (tenpercentowner) — https://whiteintel.dev/entity/64c43796-0039-519e-8174-bc7a2cdf3db2
- **BAKER FELIX** (tenpercentowner) — https://whiteintel.dev/entity/980331ac-181f-51ff-b75c-5447c0bf6ce1
- **BAKER JULIAN** (tenpercentowner) — https://whiteintel.dev/entity/dacbda6b-8969-5d7f-80c8-b04f77dbe37c
- **BAKER BIOTECH CAPITAL (GP), LLC** (tenpercentowner) — https://whiteintel.dev/entity/46647a72-2bfa-53b6-b828-8576239f577b
- **BAKER BROS CAPITAL GP LLC** (tenpercentowner) — https://whiteintel.dev/entity/7b54bcdb-db84-526a-8d27-3bdd941420c3
- **BAKER BIOTECH CAPITAL III (GP), LLC** (tenpercentowner) — https://whiteintel.dev/entity/56dc88ca-9c2c-531b-801f-751daea59e68
- **BAKER / TISCH CAPITAL (GP), LLC** (tenpercentowner) — https://whiteintel.dev/entity/f990f17a-cce2-5634-bd2e-453124e46759
- **CHAMBON PHILIPPE** (tenpercentowner) — https://whiteintel.dev/entity/862fbe22-4dc3-5061-95b6-c775817b15b1
- **CREDIT SUISSE AG/** (tenpercentowner) — https://whiteintel.dev/entity/e6b56755-829f-5ca3-a526-d88b502d2985
- **PERSEUS SOROS PARTNERS LLC** (tenpercentowner) — https://whiteintel.dev/entity/f946972a-1cbb-5b7a-bca9-a90a3f028154
- **SOROS GEORGE** (tenpercentowner) — https://whiteintel.dev/entity/1ff0d836-be0c-5c12-bfd3-4453148d5bc9
- **SCP PRIVATE EQUITY PARTNERS II LP** (tenpercentowner) — https://whiteintel.dev/entity/1014b38f-dffa-54a7-afd3-08782c11df35
- **PERSEUS BIOTECH FUND PARTNERS LLC** (tenpercentowner) — https://whiteintel.dev/entity/8ae3d581-cb96-5944-a4e8-15cf3bcf43ee
- **PERSEUS SOROS BIOPHARMACEUTICAL FUND LP** (tenpercentowner) — https://whiteintel.dev/entity/3b32cade-99ba-57ba-a8db-ad645b169145
- **PEARL FRANK H** (tenpercentowner) — https://whiteintel.dev/entity/81b071ff-d1dc-5b82-be04-2d8653551ca0
- **SFM AH LLC** (tenpercentowner) — https://whiteintel.dev/entity/d84a5e66-3a7e-574b-9512-3ba40a21d0bf
- **SOROS FUND MANAGEMENT LLC** (tenpercentowner) — https://whiteintel.dev/entity/d0a1f564-84b5-53e2-8b61-b437a79d0e46
- **SFM PARTICIPATION LP** (tenpercentowner) — https://whiteintel.dev/entity/2ead6a62-4a20-505e-a2db-72ec5ba6d6c7
- **SCP PRIVATE EQUITY II LLC** (tenpercentowner) — https://whiteintel.dev/entity/141e4577-d4a1-5d66-a67b-c28295c2a190
- **PERSEUSPUR LLC** (tenpercentowner) — https://whiteintel.dev/entity/9f5735d8-d962-590c-b746-5b6b63f27a42
- **CHURCHILL WINSTON J** (tenpercentowner) — https://whiteintel.dev/entity/0bc38887-9791-5c4e-8a8d-e34b6c2d0239

### Holdings / subsidiaries

- **NOVELION THERAPEUTICS INC.** (tenpercentowner) — https://whiteintel.dev/entity/f3d6a7ec-1c7e-5acd-bff3-e233da0facbe

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

A **61-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.

## 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 **AUXILIUM PHARMACEUTICALS INC** — https://whiteintel.dev/entity/352b9eca-23d8-5e62-bd3e-cb392e7e642c · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **AUXILIUM PHARMACEUTICALS INC**. Human view: https://whiteintel.dev/entity/352b9eca-23d8-5e62-bd3e-cb392e7e642c · Structured JSON: https://whiteintel.dev/api/public/dossier/352b9eca-23d8-5e62-bd3e-cb392e7e642c._

_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"._