Bill Ackman's Biggest Stock Holding is Getting Hammered

Activist investor Bill Ackman's biggest stock holding is getting demolished. Shares of Valeant Pharmaceuticals plummeted on Monday after Democrats on the House Oversight and Government Reform Committee sent a letter to the committee's chairman, Jason Chaffetz (R-UT), asking him to subpoena the pharmaceutical company for documents related to price increases of acquired drugs, Bloomberg ...
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