BUZZ-Valeant Pharmaceuticals: Names new CFO, shares up
** Canadian drugmaker's U.S. listed shares up 5.2 pct at $30.24 premarket
** Valeant names ex-Zoetis finance chief Paul Herendeen as CFO in latest management shakeup
** Current CFO Robert Rosiello to now lead development and strategy
** Valeant, which is facing intense investor and regulatory scrutiny over its business and accounting practices, named a new general counsel earlier this month and a new CEO in April
** Up to Friday's close, stock had fallen nearly 72 pct YTD
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