Massachusetts Bay Transportation Authority Sales Tax Revenue MA BAY TRN SR-SER B is a security (CUSIP 575579UK1) tracked across SEC portfolio filings. 1 registered fund positions totaling $5.0M via N-PORT as of 2026-05-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| VANGUARD MASSACHUSETTS TAX-EXEMPT FUND | VANGUARD MASSACHUSETTS TAX-EXEMPT FUNDS | $5.0M | 13.66% |