Stock Market News Briefs: Astrazeneca PLC, LM Ericsson Telephone Company, Helix Energy Solutions Group, Kellogg Company, Otelco, Ardea Biosciences, STMicroelectronics N.V., Time Warner Cable Inc, Wal-Mart Stores
Ardea Biosciences, Inc. (NASDAQ:RDEA) gained 51.7% after the company agreed to be purchased by the AstraZeneca plc (NYSE:AZN) at a price of $1.26 billion Shares of Helix Energy Solutions Group Inc. (NYSE:HLX) soared 6.7% after the company reported better-than-expected first quarter earnings per share of $0.73, surpassing the Zacks Consensus Estimate of $0.44 [...]