Benzinga's Top #PreMarket Losers

fell 24 percent to $2.28 in pre-market trading after the company announced a secondary offering of 22.8 million shares by Apollo Global Management, which will sell its entire 33 percent stake.

shares fell 21.37 percent to $41.00 in pre-market trading. NewLink said it won't modify a Phase III study of its algenpantucel-L for patients with surgically resected pancreatic cancer following its second interim data analysis.

shares declined 14.98 percent to $45.17 in pre-market trading. Rackspace reported downbeat revenue for the first quarter. For the second quarter, the company projected revenue growth on a constant currency basis of 1.5 percent to 2.5 percent.

shares dropped 14.90 percent to $8.05 in pre-market. LivePerson reported downbeat Q1 sales and lowered its FY15 guidance.

slipped 8.51 percent to $63.10 in pre-market trading after the company reported Q1 non-GAAP net income of RMB258.8 million on revenue of RMB1,150.3 million.