# BlackRock Alternatives Allocation Master Portfolio LLC

BlackRock Alternatives Allocation Master Portfolio LLC (CIK 1529138) is a registered fund company with registration filings on record — latest N-CSR. It has not yet filed a portfolio report (N-PORT).

## Registrant

- CIK: 1529138
- File number: 811-22672
- Address: 55 EAST 52ND STREET, NEW YORK, NY, 10055

## Registration filings (1)

| Filed | Form | Name as filed |
| --- | --- | --- |
| [2012-02-29](https://search.stillhousedata.com/launch/0001341004-12-000358) | N-2 | BlackRock Alternatives Allocation Master Portfolio LLC |

## More

- [CIK 1529138 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1529138&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/registrant/1529138.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.