After-hours buzz: NVDA, PNRA & more

A trader works on the floor of the New York Stock Exchange (NYSE) shortly after the opening bell in New York, U.S., March 22, 2017.
Lucas Jackson | Reuters
A trader works on the floor of the New York Stock Exchange (NYSE) shortly after the opening bell in New York, U.S., March 22, 2017.

Check out which companies are making headlines after the bell on Tuesday:

Shares of Panera skyrocketed more than 13 percent during after hours following reports of a possible sale. According to Bloomberg, JAB Holding, which acquired Keurig and Krispy Kreme, is reportedly in advanced talks to acquire the restaurant chain.

A. Schulman shares spiked more than 6 percent during extended trading following a slight second quarter earnings beat. The global plastics supplier reported earnings of 31 cents per share on revenue of $569 million while analysts expected earnings of 30 cents per share on revenue of $581 million, according to Reuters consensus estimates.

Shares of Nvidia continued to fall during after-hours, dipping 1 percent after falling 7 percent earlier in the day after Pacific Crest lowered its rating to "underweight" after saying a survey of the chipmaker's customers indicating that earnings will fall below expectations this year. The analyst also noted that demand for Nvidia's graphics cards has gone "from bad to worse."