Massachusetts Clean Water Trust (The) Massachusetts Clean Water Trust (The), Series 25B is a security (CUSIP 575829MR4) tracked across SEC portfolio filings. 1 registered fund positions totaling $1.5M via N-PORT as of 2025-08-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| Putnam Massachusetts Tax Exempt Income Fund | Putnam Massachusetts Tax Exempt Income Fund | $1.5M | 59.83% |