vertex pharmaceuticals

The short interest moves in biotech and emerging pharmaceutical companies were mixed in the latter two weeks of April. The number of shares sold short in Dendreon (NASDAQ: DNDN), Gilead Sciences (NASDAQ: GILD), Illumina (NASDAQ: ILMN), Onyx Pharmaceuticals (NASDAQ: ONXX) and VIVUS (NASDAQ: VVUS)...

The short interest moves in biotech and emerging pharmaceutical companies were mixed in the first two weeks of April. The number of shares sold short in Alexion Pharmaceuticals (NASDAQ: ALXN), Amgen (NASDAQ: AMGN), Biogen Idec (NASDAQ: BIIB), Dendreon (NASDAQ: DNDN), Gilead Sciences (NASDAQ: GILD...

The short interest in biotech and emerging pharmaceutical companies was mixed in the final two weeks of March. The number of shares sold short in Alexion Pharmaceuticals (NASDAQ: ALXN), Arena Pharmaceuticals (NASDAQ: ARNA), Illumina (NASDAQ: ILMN), Onyx Pharmaceuticals (NASDAQ: ONXX), Vertex...

The short interest in biotech and emerging pharmaceutical companies was mixed again in the first two weeks of March. The number of shares sold short in Arena Pharmaceuticals (NASDAQ: ARNA), Dendreon (NASDAQ: DNDN), Illumina (NASDAQ: ILMN) and VIVUS (NASDAQ: VVUS) grew somewhat between the...

The short interest in biotech and emerging pharmaceutical companies was mixed again in the final two weeks of February. The number of shares sold short in Alexion Pharmaceuticals (NASDAQ: ALXN), Arena Pharmaceuticals (NASDAQ: ARNA), Dendreon (NASDAQ: DNDN), Gilead Sciences (NASDAQ: GILD), Onyx...

The short interest in biotech and emerging pharmaceutical companies was mixed again in the first two weeks of February. The number of shares sold short in Arena Pharmaceuticals (NASDAQ: ARNA), Illumina (NASDAQ: ILMN) and Vertex Pharmaceuticals (NASDAQ: VRTX) grew somewhat between the January 31...

The short interest in biotech and emerging pharmaceutical companies was mixed again in the latter two weeks of January. The number of shares sold short in Arena Pharmaceuticals (NASDAQ: ARNA), Dendreon (NASDAQ: DNDN), Gilead Sciences (NASDAQ: GILD), Vertex Pharmaceuticals (NASDAQ: VRTX) and VIVUS...

The short interest in biotech and emerging pharmaceutical companies was mixed again in the first two weeks of January. The number of shares sold short in Arena Pharmaceuticals (NASDAQ: ARNA), Dendreon (NASDAQ: DNDN), Gilead Sciences (NASDAQ: GILD), Onyx Pharmaceuticals (NASDAQ: ONXX) and Vertex...

The short interest in biotech and emerging pharmaceutical companies was mixed again in the first two weeks of December. The number of shares sold short in Amgen (NASDAQ: AMGN), Arena Pharmaceuticals (NASDAQ: ARNA), Dendreon (NASDAQ: DNDN) and Illumina (NASDAQ: ILMN) grew somewhat between the...

The short interest in biotech and emerging pharmaceutical companies was mixed again in the final two weeks of November. Shares sold short in Alexion Pharmaceuticals (NASDAQ: ALXN), Illumina (NASDAQ: ILMN) and Regeneron Pharmaceuticals (NASDAQ: REGN) grew somewhat between the November 15 and...

Here is a quick look at some of the top-performing health care sector stocks in the past month. These companies all have a market cap of more than $500 million, and their share prices are more than 20 percent higher than 30 days ago. BioMarin Pharmaceutical (NASDAQ: BMRN) in early November...

Here is a quick look at some of the top-performing Nasdaq stocks in the past month. These companies all have a market cap of more than $500 million and their share prices are more than 40 percent higher than 30 days ago. Green Mountain Coffee Roasters (NASDAQ: GMCR) shares jumped more than 32...

The short interest in biotech and emerging pharmaceutical companies was mixed in the final two weeks of October. Shares sold short in Arena Pharmaceuticals (NASDAQ: ARNA), Dendreon (NASDAQ: DNDN), Gilead Sciences (NASDAQ: GILD), Illumina (NASDAQ: ILMN) and VIVUS (NASDAQ: VVUS) grew somewhat between...

Some smaller health care companies saw unusual movement in their stocks on Friday. And not just in Globus Medical (NYSE: GMED), Select Medical Holdings (NYSE: SEM), Universal American (NYSE: UAM) and Vertex Pharmaceuticals (NASDAQ: VRTX), which are discussed below. But also ICON (NYSE: ICLR), which...

The short interest in biotech and emerging pharmaceutical companies was mixed in the first two weeks of October. Shares sold short in Alexion Pharmaceuticals (NASDAQ: ALXN), Amgen (NASDAQ: AMGN), Celgene (NASDAQ: CELG), Dendreon (NASDAQ: DNDN), Illumina (NASDAQ: ILMN), Onyx Pharmaceuticals (NASDAQ...