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.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| Master Total Return Portfolio | Master Bond LLC | $1.6M | 0.82% |
| BlackRock Total Return Fund | BlackRock Bond Fund, Inc. | $1.4M | 0.79% |
| BlackRock Balanced Portfolio | BlackRock Series Fund, Inc. | $25K | 0.53% |