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  •  Dow Down0.16% Nasdaq Down0.08%
    Upgrades & Downgrades History
    UPGRADES & DOWNGRADES HISTORY 
    DateResearch FirmActionFromTo
    22-May-15Cantor FitzgeraldInitiatedBuy
    18-May-15H.C. WainwrightInitiatedBuy
    2-Jul-14Brinson PatrickInitiatedMarket Outperform
    17-Oct-12Ascendiant Capital MarketsInitiatedBuy
    23-Aug-12Maxim GroupInitiatedBuy
    7-Jul-11WBB SecuritiesInitiatedSell
    2-Feb-10LifeTech CapitalInitiated
    14-Jan-09Dawson JamesInitiatedSpeculative Buy
    8-Dec-05Merriman Curhan FordInitiatedNeutral

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