Valeant's U.S.-listed shares were up 5 percent in premarket trading on Monday.

The embattled drugmaker is trying to regain investor confidence following a tumultuous past year in which its pricing strategy and ties to a speciality pharmacy led to a wider political and regulatory scrutiny, hammering its stock.

Laval, Quebec-based Valeant tapped Perrigo Co Plc's Chief Executive, Joseph Papa, to replace long-time CEO Michael Pearson earlier this year.

Valeant also named a new general counsel and announced the departure of its public relations head earlier this month.

Rosiello will remain at Valeant as executive vice president, corporate development and strategy, the company said.

Zoetis on Sunday promoted Glenn David as its CFO.

Up to Friday's close of $28.74, Valeant's stock had fallen 72 percent this year.

(Reporting by Ankur Banerjee in Bengaluru; Editing by Sriraj Kalluvila; Editing by Anil D'Silva)

Stocks treated in this article : Valeant Pharmaceuticals Intl Inc, Zoetis Inc