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Biotech Says It Hurdled A Genetic Barrier, But Shares Gave Up A Breakout

Arrowhead Pharmaceuticals stock flirted with a breakout Friday after the biotech company said it’s experimenting with drugs that will “silence” multiple troublesome genes simultaneously. Previously, that was impossible, Chief Executive Christopher Anzalone said late Thursday on CNBC’s Mad Money. Arrowhead Pharmaceuticals (ARWR) is among a slew of biotech companies using technology called RNA interference to silence genes responsible for creating problematic proteins.