# Washington Mutual Mortgage Pas Washington Mutual Mortgage Pass-Through Certificates WMALT Series 2006-4 Trust

Washington Mutual Mortgage Pas Washington Mutual Mortgage Pass-Through Certificates WMALT Series 2006-4 Trust is a security (CUSIP 939344AA5) tracked across SEC portfolio filings. 3 registered fund positions totaling $3.0M via N-PORT as of 2026-03-31.

## Summary

- Issuer: Washington Mutual Mortgage Pas
- Class: Washington Mutual Mortgage Pass-Through Certificates WMALT Series 2006-4 Trust
- CUSIP: 939344AA5
- Asset category: ABS-MBS
- 13F holders: 0
- N-PORT fund positions: 3
- N-PORT value: $3.0M
- N-PORT report: 2026-03-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Master Total Return Portfolio](https://search.stillhousedata.com/fund/S000004067) | Master Bond LLC | $1.6M | 0.82% |
| [BlackRock Total Return Fund](https://search.stillhousedata.com/fund/S000004071) | BlackRock Bond Fund, Inc. | $1.4M | 0.79% |
| [BlackRock Balanced Portfolio](https://search.stillhousedata.com/fund/S000003863) | BlackRock Series Fund, Inc. | $25K | 0.53% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/939344AA5.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.