Deals of the day- Mergers and acquisitions
(Adds Innogy, Shanghai Electric, Edeka, Novator, Mars Inc; Updates Twitter, Pfizer Inc, Amundi, SVG Capital)
Oct 6 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2000 GMT on Thursday:
** Twitter Inc shares plunged on Thursday as fears mounted that a much-anticipated auction of the social media company will draw minimal interest from potential buyers.
** Pfizer Inc said on Thursday it would sell its global infusion therapy business to ICU Medical Inc for $1 billion in cash and stock that will give it a major stake in the smaller company.
** France's Amundi has made a higher than expected 4 billion euro ($4.5 bln) offer to buy UniCredit's Pioneer Investments, two sources told Reuters, raising the bar in the race to snap up Italy's third-largest asset manager.