Benzinga's Top #PreMarket Losers

Sarepta Therapeutics

shares fell 5.38% to $19.33 in the pre-market trading after Citigroup downgraded the stock from Neutral to Sell. Ariad Pharmaceuticals

dipped 4.90% to $6.80 in the pre-market session after Citigroup downgraded the stock from Neutral to Sell. First Solar

dipped 4.21% to $54.35 after Goldman Sachs downgraded the stock from Buy to Sell. Camtek

shares dropped 3.82% to $4.28 in pre-market trading after the company's current Chief Executive Officer, Roy Porat, announced his decision to step down from his position. The company's board also named Rafi Amit as the new CEO.