After-hours buzz: GRPN, TSLA, GMCR & more By: CNBC.com News August 07, 2013 at 17:08 PM EDT Check out which companies are making headlines after the bell Wednesday: Read More >> Related Stocks: Agrium, Inc. Groupon Cl A Jack IN The Box Inc Mondelez International Prudential Financial Tesla, Inc. Transocean Ltd Vale ADR Representing One Ord Shs