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Nuveen Select Tax Free Income Portfolio is a diversified closed-end investment company. It seeks to provide current income and stable dividends, exempt from regular federal and designated state income taxes, consistent with the preservation of capital by investing primarily in a portfolio of municipal obligations.
Maravai LifeSciences Holdings Inc is a life sciences company. It provides products to enable the development of drug therapies, diagnostics, and novel vaccines and supports research on human diseases. Its reportable segments are Nucleic acid production and biologics safety testing. It generates a majority of its revenue from Nucleic Acid Production and focuses on the manufacturing and sale of nucleic acid products to support the needs of customers' research, and therapeutic and vaccine programs. In addition, the segment also provides research products for labeling and detecting proteins in cells and tissue samples.