Cempra, Novavax and Ionis Pharmaceuticals were among the biotech stock movers in premarket trading on Tuesday.
Amarin (AMRN) stock was declining after pricing its public offering at a discount.
A Tetraphase insider executed a well-timed insider stock sale right before the company's share price fell on negative clinical trial results.
These stock charts look ready to break out and trade higher from current levels.
When a stock makes a large-percentage move, it is often just the start of a new major trend -- a trend that can lead to huge profits.
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