---
title: "DEERFIELD SPECIAL SITUATIONS INTERNATIONAL MASTER FUND, L.P. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/3c331f86-b5b2-56dc-bfaa-e22c9ccfb64a
json: https://whiteintel.dev/api/public/dossier/3c331f86-b5b2-56dc-bfaa-e22c9ccfb64a
identifier: sec:0001565099
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# DEERFIELD SPECIAL SITUATIONS INTERNATIONAL MASTER FUND, L.P.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001565099`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/3c331f86-b5b2-56dc-bfaa-e22c9ccfb64a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/3c331f86-b5b2-56dc-bfaa-e22c9ccfb64a  

## Ownership & control

### Holdings / subsidiaries

- **CAS MEDICAL SYSTEMS INC** (tenpercentownerother) — https://whiteintel.dev/entity/d4446aa6-5f55-5cb3-b3eb-17603df94b04
- **Protara Therapeutics, Inc.** (tenpercentownerother) — https://whiteintel.dev/entity/d54e2413-cebc-5e01-bc86-3b7d84bd9785
- **Vanda Pharmaceuticals Inc.** (tenpercentownerother) — https://whiteintel.dev/entity/fd0a99e9-8a40-5e51-b104-33af8fce8d8a
- **DICERNA PHARMACEUTICALS INC** (tenpercentownerother) — https://whiteintel.dev/entity/e266421a-23a3-55f8-9ed4-831e91084e35
- **Adverum Biotechnologies, Inc.** (tenpercentownerother) — https://whiteintel.dev/entity/2e479e2e-9ea8-5cf7-a7a3-5d423cc5e323
- **LOXO ONCOLOGY, INC.** (tenpercentownerother) — https://whiteintel.dev/entity/754008b1-41a4-5108-a53a-ffe8793fb4b5
- **TRIVASCULAR TECHNOLOGIES, INC.** (tenpercentownerother) — https://whiteintel.dev/entity/e1e0b3e6-2d9e-542c-92fd-023aa32b157d
- **AUSPEX PHARMACEUTICALS, INC.** (tenpercentownerother) — https://whiteintel.dev/entity/a0ac14ce-2fa2-5888-afaa-4d29b79abd4d
- **PERNIX SLEEP, INC.** (tenpercentownerother) — https://whiteintel.dev/entity/3613414e-93b8-5896-b09f-71a1296ab7fb
- **NXSTAGE MEDICAL, INC.** (tenpercentownerother) — https://whiteintel.dev/entity/6af4045d-235f-51fe-ab3b-8f44dd71f57c

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **DEERFIELD SPECIAL SITUATIONS INTERNATIONAL MASTER FUND, L.P.**. Human view: https://whiteintel.dev/entity/3c331f86-b5b2-56dc-bfaa-e22c9ccfb64a · Structured JSON: https://whiteintel.dev/api/public/dossier/3c331f86-b5b2-56dc-bfaa-e22c9ccfb64a._

_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"._