Benzinga's Top #PreMarket Losers

Semtech Corporation SMTC shares dropped 6.30 percent to $23.07 in pre-market after the company reported weaker-than-expected results for the first quarter and issued a downbeat forecast for the current quarter. Prima Biomed Ltd. PBMD fell 3.64 percent to $2.65 in pre-market trading after dropping 7.41 percent on Wednesday. JD.Com Inc(ADR) JD shares declined 2.83 percent to $33.28 in pre-market trading after rising 0.12 percent on Wednesday. China Finance Online Co. (ADR) JRJC shares tumbled 2.68 percent to $5.82 in pre-market trading after dropping 4.93 percent on Wednesday. Sanderson Farms, Inc. SAFM shares fell 2.22 percent to $82.62 in pre-market trading after the company reported downbeat Q2 earnings.