BUZZ-Aeterna Zentaris Inc: Prices offering at discount
** Canadian biopharmaceutical company's U.S.-listed shares down 32.7 pct at 53 cents; Toronto-listed stock down 34 pct at 66 Canadian cents
** Prices about 60 mln units at 62 cents per share, a 21.5 pct discount to stock's Thursday close on Nasdaq
** Offering consists of share and warrants
** Company had 57.89 mln outstanding U.S.-listed shares -Thomson Reuters data
** Up to Thursday's close, the Nasdaq-listed stock had fallen 38 pct while the Toronto-listed stock declined 28.6 pct in the past 12 months
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