Benzinga's M&A Chatter for Wednesday December 12, 2012

The following are the M&A deals, rumors and chatter circulating on Wall Street for Wednesday December 12, 2012: Hearing Unconfirmed Chatter of Potential Sanofi Bid for Dendreon The Rumor:Sanofi (NYSE: SNY ) may bid as much as $10 per share to acquire Dendreon (NASDAQ: DNDN ), according to unconfirmed market