Washington Mutual Mortgage Pas Washington Mutual Mortgage Pass-Through Certificates WMALT Series 2006-4 Trust is a security (CUSIP 939344AK3) tracked across SEC portfolio filings. 2 registered fund positions totaling $1.2M via N-PORT as of 2026-03-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| Master Total Return Portfolio | Master Bond LLC | $614K | 0.33% |
| BlackRock Total Return Fund | BlackRock Bond Fund, Inc. | $587K | 0.33% |