Massachusetts Bay Transportation Authority, Assessment Bonds, Series 2012A is a security (CUSIP 575577MZ1) tracked across SEC portfolio filings. 1 registered fund positions totaling $2.3M via N-PORT as of 2021-09-30.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| Nuveen Select Tax-Free Income Portfolio 2 | Nuveen Select Tax-Free Income Portfolio 2 | $2.3M | 82.40% |