Blackrock Massachusetts Tax-Exempt Trust: SC 13G/A filed May 10, 2021

Name: Blackrock Massachusetts Tax-Exempt Trust SC 13G/A (0000072971-21-000231)
Creator: Blackrock Massachusetts Tax-Exempt Trust
Published: 2021-05-10

Form type: SC 13G/A
Filing date: May 10, 2021
Accession number: 0000072971-21-000231
Filer: Blackrock Massachusetts Tax-Exempt Trust (CIK 901824)