arbor multifamily mortgage sec Arbor Multifamily Mortgage Securities Trust 2021-MF3 is a security (CUSIP 03882KAJ1) tracked across SEC portfolio filings. 2 registered fund positions totaling $1.9M via N-PORT as of 2026-03-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| Master Total Return Portfolio | Master Bond LLC | $1.3M | 0.68% |
| BlackRock Total Return Fund | BlackRock Bond Fund, Inc. | $608K | 0.34% |