Bloomberg Takeda Pharmaceutical Co. will expand its footprint in the US oncology market with the $4.66 billion purchase of Ariad Pharmaceuticals Inc., adding one potential blockbuster in lung cancer and another already on-the-market therapy. Takeda will pay $24 a share for Ariad, the companies said in a statement, 75 percent more than its Friday close of $13.74. The deal …

  Bloomberg Hyundai Engineering & Construction Co., Itochu Corp. and Chinese builders are among companies that may bid for a $5 billion contract to build a network of roads and a suspension bridge across Turkey’s Dardanelles waterway, according to people familiar with the matter. At least five bidding groups may compete in the January 26 auction, the people said, asking …

  Bloomberg Yahoo! Inc. Chief Executive Officer Marissa Mayer is among six directors who plan to leave the board of the investment company that will be left after the closing of the proposed sale of Yahoo’s main internet properties to Verizon Communications Inc. The new company, a shareholder in Alibaba Group Holding Inc. and Yahoo! Japan, will change its name …