Benzinga's Top #PreMarket Losers

shares declined 7.82 percent to $15.80 in pre-market trading. TubeMogul filed registration for a $75 million common stock offering.

shares tumbled 5.32 percent to $32.92 in pre-market trading. On Monday, PPL reported the closing of spinoff of competitive supply unit and reaffirmed its FY15 earnings forecast of $2.05 to $2.25 per share.

shares dropped 4.26 percent to $78.15 in pre-market following the confirmation of a rejected bid for Qunar Cayman Islands Ltd

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fell 3.68 percent to $29.83 in pre-market trading after the company reported an offering of 7 million common units.

shares fell 3.54 percent to $4.90 in pre-market trading after the company reported offerings of $750 million of common stock and $1.75 billion of mandatory convertible preferred stock.