Mattel, PROS Holdings, ServiceNow Lead Thursday's After-Hours Movers By: Benzinga via Benzinga April 16, 2015 at 19:47 PM EDT Celanese Corporation (NYSE: CE) gained more than 7 percent in late trading Thursday to $62.43 after the technology and materials ... Read More >> Related Stocks: Celanese Corp Chimerix Inc Ingles Markets Inc Mattel Pros Holdings Servicenow Inc Vaalco Energy Inc