# MASTR Adjustable Rate Mortgages Trust MASTR Adjustable Rate Mortgages Trust 2004-13

MASTR Adjustable Rate Mortgages Trust MASTR Adjustable Rate Mortgages Trust 2004-13 is a security (CUSIP 576433UF1) tracked across SEC portfolio filings. 2 registered fund positions totaling $228K via N-PORT as of 2026-03-31.

## Summary

- Issuer: MASTR Adjustable Rate Mortgages Trust
- Class: MASTR Adjustable Rate Mortgages Trust 2004-13
- CUSIP: 576433UF1
- Asset category: ABS-MBS
- 13F holders: 0
- N-PORT fund positions: 2
- N-PORT value: $228K
- N-PORT report: 2026-03-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [TCW METWEST LOW DURATION BOND FUND](https://search.stillhousedata.com/fund/S000001146) | TCW Metropolitan West Funds | $186K | 2.09% |
| [PIMCO StocksPLUS Global Portfolio](https://search.stillhousedata.com/fund/S000028118) | PIMCO Equity Series VIT | $42K | 2.41% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/576433UF1.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.