After-hours buzz: Tesla, Yum, Avanir & more By: CNBC.com News August 12, 2013 at 17:08 PM EDT Check out which companies are making headlines after the bell Monday: Read More >> Related Stocks: IAMGOLD Corporation JPMorgan Chase & Co Medicines Company Merck & Co Sonic Cp Spirit Aerosystems Holdings Tesla, Inc. Wageworks Inc Yum Brands