---
title: "SABBY HEALTHCARE MASTER FUND, LTD. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/dfef00d1-94be-5a48-9ae2-079d7e1da8aa
json: https://whiteintel.dev/api/public/dossier/dfef00d1-94be-5a48-9ae2-079d7e1da8aa
identifier: sec:0001561018
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SABBY HEALTHCARE MASTER FUND, LTD.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001561018`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/dfef00d1-94be-5a48-9ae2-079d7e1da8aa  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/dfef00d1-94be-5a48-9ae2-079d7e1da8aa  

## Ownership & control

### Holdings / subsidiaries

- **ROSETTA GENOMICS LTD.** (tenpercentowner) — https://whiteintel.dev/entity/29ab29b9-3e04-5486-82db-5c8d28f94c45
- **Akari Therapeutics Plc** (tenpercentowner) — https://whiteintel.dev/entity/2b19d013-cda4-53fc-825b-58822ac0d1a8
- **NUPATHE INC** (tenpercentowner) — https://whiteintel.dev/entity/88bc2ed3-54ea-5662-a4f9-d4b696242396

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SABBY HEALTHCARE MASTER FUND, LTD.**. Human view: https://whiteintel.dev/entity/dfef00d1-94be-5a48-9ae2-079d7e1da8aa · Structured JSON: https://whiteintel.dev/api/public/dossier/dfef00d1-94be-5a48-9ae2-079d7e1da8aa._

_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"._