HPTX. Hyperion Therapeutics to Report Results of HALT-HE Study at AASLD Plenary Session http://finance.yahoo.com/news/hyperion-therapeutics-report-results-halt-225621921.html stockcharts.com/c-sc/sc?s=HPTX&p=W&yr=1&mn=0&dy=0&i=t60565914328&r=1349225547263