Deals of the day-Mergers and acquisitions

April 16 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 1000 GMT on Monday: ** Shire, the London-listed rare diseases specialist that is a potential takeover target for Japan's Takeda Pharmaceutical, is selling its oncology business to unlisted French drugmaker Servier for $2.4 billion. ** China National Chemicals Corp, or ChemChina, confirmed that it plans to increase its stake in global energy trader Mercuria Group and sell the trader a minority stake in t