Commonwealth of Massachusetts MASSACHUSETTS ST is a security (CUSIP 57582R4A1) tracked across SEC portfolio filings. 1 registered fund positions totaling $10.0M via N-PORT as of 2026-05-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| BlackRock Strategic Municipal Opportunities Fund | BlackRock Municipal Series Trust | $10.0M | 29.72% |