<SEC-DOCUMENT>0001193125-19-302495-index.html : 20191127 <SEC-HEADER>0001193125-19-302495.hdr.sgml : 20191127 <ACCEPTANCE-DATETIME>20191127160533 ACCESSION NUMBER: 0001193125-19-302495 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20191127 DATE AS OF CHANGE: 20191127 EFFECTIVENESS DATE: 20191127 FILER: COMPANY DATA: COMPANY CONFORMED NAME: BlackRock Health Sciences Trust CENTRAL INDEX KEY: 0001314966 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-230158 FILM NUMBER: 191257862 BUSINESS ADDRESS: STREET 1: 100 BELLEVUE PARKWAY CITY: WILMINGTON STATE: DE ZIP: 19809 BUSINESS PHONE: (888) 825-2257 MAIL ADDRESS: STREET 1: 100 BELLEVUE PARKWAY CITY: WILMINGTON STATE: DE ZIP: 19809 </SEC-HEADER> <DOCUMENT> <TYPE>497 <SEQUENCE>1 <FILENAME>d614596d497.htm <DESCRIPTION>BLACKROCK HEALTH SCIENCES TRUST <TEXT> Document 1 - file: d614596d497.htm
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