
A biotech company called Seres Therapeutics got some bad news late last month: Its all-important infectious disease drug failed in a clinical trial, sending its stock price down roughly 70 percent. Investors took a bath.
But in the two days before that failure became public, three top Seres executives sold a combined $2.5 million worth of the company’s stock. They made a tidy profit. They avoided nearly $2 million in paper losses.
And it was entirely legal.