---
title: "BLACKROCK ALTERNATIVES ALLOCATION MASTER PORTFOLIO LLC — Ownership Dossier"
canonical: https://whiteintel.dev/entity/c30c5e22-99e5-5138-ac27-5cc4963246db
json: https://whiteintel.dev/api/public/dossier/c30c5e22-99e5-5138-ac27-5cc4963246db
identifier: sec:0001529138
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# BLACKROCK ALTERNATIVES ALLOCATION MASTER PORTFOLIO LLC

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001529138`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/c30c5e22-99e5-5138-ac27-5cc4963246db  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/c30c5e22-99e5-5138-ac27-5cc4963246db  

## Ownership & control

### Owners / controllers

- **BLACKROCK HOLDCO 2, INC.** (tenpercentownerother) — https://whiteintel.dev/entity/24f29d75-fa5e-5f5e-a44a-8686fa2d2d23
- **BLACKROCK FINANCE, INC.** (tenpercentownerother) — https://whiteintel.dev/entity/e33e404a-cd78-5114-93d8-59348dde984b

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

A **368-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 **BLACKROCK ALTERNATIVES ALLOCATION MASTER PORTFOLIO LLC** — https://whiteintel.dev/entity/c30c5e22-99e5-5138-ac27-5cc4963246db · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **BLACKROCK ALTERNATIVES ALLOCATION MASTER PORTFOLIO LLC**. Human view: https://whiteintel.dev/entity/c30c5e22-99e5-5138-ac27-5cc4963246db · Structured JSON: https://whiteintel.dev/api/public/dossier/c30c5e22-99e5-5138-ac27-5cc4963246db._

_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"._