Massachusetts School Building Authority MA SCH BLDG-B-SENIOR is a security (CUSIP 576000UN1) tracked across SEC portfolio filings. 1 registered fund positions totaling $909K via N-PORT as of 2026-05-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| VANGUARD MASSACHUSETTS TAX-EXEMPT FUND | VANGUARD MASSACHUSETTS TAX-EXEMPT FUNDS | $909K | 2.47% |