Ruane Cunniff & Goldfarb

Hedge fund billionaire Bill Ackman is increasingly bullish on Valeant Pharmaceuticals Intl Inc (NYSE: VRX). His firm, Pershing Square, filed a Schedule 13D form with the SEC on Wednesday, disclosing an increase in its exposure to the pharmaceutical company. The fund now owns 19,473,933 shares...

Bill Ackman, founder and CEO of hedge fund Pershing Square Capital Management, acquired a $3.3 billion stake in Valeant Pharmaceuticals Intl Inc (NYSE: VRX), a source familiar with the matter told Reuters on Monday. With this stake, the fund holds about 5 percent of the company's shares...