# Massachusetts Port Authority MASSACHUSETTS ST PORT AUTH

Massachusetts Port Authority MASSACHUSETTS ST PORT AUTH is a security (CUSIP 575896YJ8) tracked across SEC portfolio filings. 14 registered fund positions totaling $34.5M via N-PORT as of 2026-05-31.

## Summary

- Issuer: Massachusetts Port Authority
- Class: MASSACHUSETTS ST PORT AUTH
- CUSIP: 575896YJ8
- Asset category: DBT
- 13F holders: 0
- N-PORT fund positions: 14
- N-PORT value: $34.5M
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| BlackRock MuniHoldings Fund, Inc. | BlackRock MuniHoldings Fund, Inc. | $8.8M | 39.37% |
| Western Asset Managed Municipals Fund Inc. | Western Asset Managed Municipals Fund Inc. | $5.1M | 85.51% |
| BlackRock Municipal Income Trust | BlackRock Municipal Income Trust | $4.3M | 90.82% |
| Invesco Municipal Opportunity Trust | Invesco Municipal Opportunity Trust | $2.4M | 35.59% |
| BlackRock MuniYield Quality Fund, Inc. | BlackRock MuniYield Quality Fund, Inc. | $2.4M | 12.84% |
| BlackRock MuniYield Fund, Inc. | BlackRock MuniYield Fund, Inc. | $2.4M | 45.47% |
| Western Asset Municipal Partners Fund Inc. | Western Asset Municipal Partners Fund Inc. | $1.6M | 119.45% |
| BlackRock Municipal Income Trust II | BlackRock Municipal Income Trust II | $1.2M | 22.91% |
| BlackRock MuniYield Quality Fund III, Inc. | BlackRock MuniYield Quality Fund III, Inc. | $1.1M | 7.87% |
| BlackRock MuniVest Fund II, Inc. | BlackRock MuniVest Fund II, Inc. | $1.1M | 46.56% |
| Invesco Trust for Investment Grade Municipals | Invesco Trust for Investment Grade Municipals | $1.1M | 19.61% |
| Invesco Municipal Trust | Invesco Municipal Trust | $1.1M | 19.54% |
| Invesco Value Municipal Income Trust | Invesco Value Municipal Income Trust | $1.1M | 18.61% |
| Invesco Advantage Municipal Income Trust II | Invesco Advantage Municipal Income Trust II | $810K | 20.36% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/575896YJ8.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.