Actelion (ATLN.VX) shares rose 3.5 percent on Friday after hedge fund shareholder Elliott Advisors called for its chairman and chief executive to resign from the board in a push for a sale of the Swiss biotech firm. The shares have been trading in a tight range since mid-November, when Chief Executive Jean-Paul Clozel sought to quash takeover speculation, saying maintaining independence was the best way to ensure value for the company's shareholders. [ID:nN11148175] Elliott said Clozel's attitude to a potential sale of the company was not in shareholders' interests.
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