Benzinga's Top #PreMarket Losers

Durata Therapeutics DRTX dipped 11.19% to $15.00 in pre-market trading. Durata Therapeutics confirmed the FDA approval of Dalvance to treat skin infections. JinkoSolar Holding Co JKS shares fell 9.13% to $23.50 in pre-market trading after the company reported weaker-than-expected first-quarter earnings. Pinnacle Foods PF dropped 6.88% to $30.98 in pre-market trading on proposed Pilgrim's Pride PPC acquisition of Hilshire HSH. Staples SPLS shares dropped 2.15% to $11.40 in pre-market trading after the company named Frank Bifulco as Executive Vice President, Marketing. Analysts at Goldman Sachs downgraded Staples from Neutral to Sell and lowered the target price from $11.50 to $11.