City of Boston MA BOSTON-B-REF is a security (CUSIP 100853S68) tracked across SEC portfolio filings. 1 registered fund positions totaling $3.5M via N-PORT as of 2026-05-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| VANGUARD MASSACHUSETTS TAX-EXEMPT FUND | VANGUARD MASSACHUSETTS TAX-EXEMPT FUNDS | $3.5M | 9.42% |