# Massachusetts School Building Authority MA SCH BLDG-B-SENIOR

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.

## Summary

- Issuer: Massachusetts School Building Authority
- Class: MA SCH BLDG-B-SENIOR
- CUSIP: 576000UN1
- Asset category: DBT
- 13F holders: 0
- N-PORT fund positions: 1
- N-PORT value: $909K
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD MASSACHUSETTS TAX-EXEMPT FUND](https://search.stillhousedata.com/fund/S000002870) | VANGUARD MASSACHUSETTS TAX-EXEMPT FUNDS | $909K | 2.47% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/576000UN1.md)
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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.