# MASTR Adjustable Rate Mortgages Trust MASTR Adjustable Rate Mortgages Trust, Series 2004-13, Class 3A7

MASTR Adjustable Rate Mortgages Trust MASTR Adjustable Rate Mortgages Trust, Series 2004-13, Class 3A7 is a security (CUSIP 576433UM6) tracked across SEC portfolio filings. 2 registered fund positions totaling $98K via N-PORT as of 2026-05-31.

## Summary

- Issuer: MASTR Adjustable Rate Mortgages Trust
- Class: MASTR Adjustable Rate Mortgages Trust, Series 2004-13, Class 3A7
- CUSIP: 576433UM6
- Asset category: ABS-MBS
- 13F holders: 0
- N-PORT fund positions: 2
- N-PORT value: $98K
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [JPMorgan Core Bond Trust](https://search.stillhousedata.com/fund/S000007337) | JPMorgan Institutional Trust | $96K | 0.21% |
| ALLSPRING MULTI-SECTOR INCOME FUND | ALLSPRING MULTI-SECTOR INCOME FUND | $2K | 0.07% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/576433UM6.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.