Jen-Hsun Huang, president and chief executive officer of Nvidia Corp., speaks during the company’s event at Mobile World Congress Americas in Los Angeles on Oct. 21, 2019.
Patrick T. Fallon | Bloomberg | Getty Images
Check out the companies making headlines after the bell Thursday:
GenMark Diagnostics — GenMark shares popped more than 4% after the Food and Drug Administration granted the company emergency clearance to run a test that screens for the flu, Covid-19 and other viruses.
Exelon — Shares of the nuclear energy producer rose more than 1% in after-hours trading after activist investor Keith Meister pitched the