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News Breaks March 21, 2013 06:36 EDT OMPI Obagi Medical downgraded to Hold from Buy at Cantor Cantor downgraded Obagi Medical (OMPI) citing the takeover by Valeant (VRX) as it does not expect any competing bids. News For OMPI From The Last 14 Days Check below for free stories on OMPI the last two weeks. Sign up for a free trial to see the rest of the stories you've been missing. There are no results for OMPI Sign up for a free trial to see the rest of the stories you've been missing.