Benzinga's Top #PreMarket Losers

Staples

shares fell 9.63% to $12.11 in the pre-market trading after the company reported weaker-than-expected fiscal fourth-quarter earnings and announced its plans to close 225 stores by 2015. Kamada

dipped 8.51% to $16.01 after the company initiated Phase 2/3 clinical trial of Glassia to treat newly diagnosed pediatric patients with type 1 diabetes. Repligen

shares dropped 6.39% to $14.50 in pre-market trading after the company reported Q4 results. FuelCell Energy

dipped 4.79% to $2.98 in the pre-market session after rising 15.50% on Wednesday.