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After-hours buzz: Chimerix, Weight Watchers, Lockheed Martin & more

Traders work on the floor of the New York Stock Exchange.
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Traders work on the floor of the New York Stock Exchange.

Check out the companies making headlines after the bell Wednesday:

Chimerix stock jumped in after-hours trading after asset-management company Point72, which was founded by Steve Cohen, disclosed a 5.3 percent stake in the small-cap biotech. Chimerix lost about 80 percent of its value on Monday after its phase three trial of an antiviral drug failed. The drug being tested was one that combats an infection called cytomegalovirus.

Shares of Weight Watchers edged up in extended-hours trading. The stock soared 19 percent during the regular session after the weight loss company launched an advertising campaign starring Oprah Winfrey. Winfrey bought a 10 percent stake in the company, about 6.4 million shares, in October.

Netflix's stock inched lower after the bell, pushing the streaming platform's shares down to around $17 below their 52-week high.

Shares of Lockheed Martin rose slightly on a report that the Pentagon awarded the defense contractor a multiyear deal for transporter planes. The deal's value hit $1.1 billion for 32 aircrafts. Work on this project is expected to be complete by April 30, 2020.

Tesla stock also moved slightly higher after the bell on Wednesday. The electric car company's shares have seen a 7 percent increase year-to-date.

— Reuters contributed to this report.