Mergers and Acquisitions

Markets

Pfizer Terminates Proposed Allergan Takeover

U.S. drugmaker Pfizer and Ireland-based Allergan formally announced the scrapping of their $160 billion merger on Wednesday, in a big win for President Barack Obama who has been pushing to curb tax-slashing "inversion" deals.

Politics

U.S. to Challenge Halliburton Deal

The Justice Department is preparing to file a lawsuit to block a proposed merger between Halliburton and Baker Hughes, the most recent sign that a takeover boom is meeting resistance from U.S. regulators and antitrust enforcers.

Markets

China's Anbang Ups Offer for Starwood to $14B

China's Anbang Insurance Group Co has raised its offer for Starwood Hotels & Resorts Worldwide Inc to almost $14 billion, in its latest challenge to the U.S. hotel operator's merger with Marriott International Inc.