BlackRock Health Sciences Trust is a close ended equity mutual fund launched by BlackRock, Inc. The fund is managed by BlackRock Advisors, LLC. It invests in the public equity markets across the globe. The fund invests in the stocks of companies operating in the healthcare sector which includes businesses involved in researching, developing, producing, distributing or delivering medical, dental, optical, pharmaceutical or biotechnology products, supplies, equipment or services or that provide support services to these companies. It benchmarks the performance of its portfolio against the Russell 3000 Healthcare Index. BlackRock Health Sciences Trust was formed on March 31, 2005 and is domiciled in the United States.