Moderna CEO Stephane Bancel on executive stock sales

Top executives at the biotech company Moderna have sold millions of dollars in stock this year as the company’s share price has skyrocketed on hopes it will produce a viable Covid-19 vaccine. Moderna CEO Stephane Bancel joins "Squawk Box" to address the concerns some investors have about the stock sales.
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Mon, Jul 27 20207:53 AM EDT