Allergan's stock nosedived on Monday, falling more than 20% as soon as the U.S Treasury announced its decision to pursue stricter rules to curb tax inversion mergers and buyouts. The Dublin-based pharmaceutical company was set to merge with U.S.-based Pfizer Inc. The Treasury's announcement on Monday broke down the $160 billion AGN-PFE merger which was set to make the world's largest pharmaceutical company, had it happened.
Allergan-Pfizer breakup brings millions in losses
Just as Allergan was getting burnt on Monday, a number of major hedge funds were feeling the losses. The largest shareholder among hedge funds, John Paulson, held over 5.5 million...