Hyperion Therapeutics prices IPO below proposed range

Hyperion Therapeutics Inc. said Thursday it has priced 5 million shares of its common stock at $10 per share in its initial public offering. This is below a proposed range of $11 to $13 per share. The company had initially planned to offer 4.3 million shares to raise $50 million. The South San Francisco-based biopharmaceutical company is expected to start trading on the Nasdaq Global Select Market under the ticker symbol "HPTX" on Thursday, with the offering closing Tuesday of next week.