Deals of the day- Mergers and acquisitions
(Adds Blackstone, ProSiebenSat.1, Micron, Pearson, Ball Corp; updates SunEdison, Exor)
July 20 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2000 GMT on Monday:
** Lockheed Martin Corp said it would buy Sikorsky Aircraft, the helicopter unit of United Technologies Corp , for $9 billion, and review the possible sale or spinoff of $6 billion in other information technology and services businesses.
** SunEdison Inc agreed to buy Vivint Solar Inc , the second-biggest U.S. solar panel installer, in a deal valued at about $2.2 billion, speeding up its expansion in the booming residential solar market.
** Italian holding company Exor has again sweetened its offer for U.S.-listed reinsurer PartnerRe to include a special dividend of $3 per share for common shareholders if it is chosen over rival suitor Axis Capital Holdings.