---
title: "BLACK BEAR OFFSHORE MASTER FUND LP — Ownership Dossier"
canonical: https://whiteintel.dev/entity/77330f7d-7ddd-530c-a005-15fd8e77b70d
json: https://whiteintel.dev/api/public/dossier/77330f7d-7ddd-530c-a005-15fd8e77b70d
identifier: sec:0001275688
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# BLACK BEAR OFFSHORE MASTER FUND LP

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001275688`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/77330f7d-7ddd-530c-a005-15fd8e77b70d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/77330f7d-7ddd-530c-a005-15fd8e77b70d  

## Ownership & control

### Holdings / subsidiaries

- **MABVAX THERAPEUTICS HOLDINGS, INC.** (tenpercentowner) — https://whiteintel.dev/entity/e645c7c1-8720-5927-8f9c-f4d3b4602f96
- **CASSAVA SCIENCES INC** (tenpercentowner) — https://whiteintel.dev/entity/292c4abb-f895-5f96-aa34-5bdc3349e19a
- **MGIC INVESTMENT CORP** (tenpercentowner) — https://whiteintel.dev/entity/42ed312a-d602-58a2-b019-30640b7f4484
- **Sarepta Therapeutics, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/e5124c31-cdb6-50b8-9569-bb5ec4c8c48d
- **AMYLIN PHARMACEUTICALS INC** (tenpercentowner) — https://whiteintel.dev/entity/bd148975-cea4-5e83-a716-4bfcea031ff4

## 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 **BLACK BEAR OFFSHORE MASTER FUND LP** — https://whiteintel.dev/entity/77330f7d-7ddd-530c-a005-15fd8e77b70d · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **BLACK BEAR OFFSHORE MASTER FUND LP**. Human view: https://whiteintel.dev/entity/77330f7d-7ddd-530c-a005-15fd8e77b70d · Structured JSON: https://whiteintel.dev/api/public/dossier/77330f7d-7ddd-530c-a005-15fd8e77b70d._

_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"._