Benzinga's Top Pre-Market NASDAQ Gainers

Tower Bancorp Inc TOBC shares advanced 35.49% to $27.60 in the pre-market session. Susquehanna Bancshares Inc agreed to acquire Tower Bancorp for $343 million in cash and stock, representing a 41% premium over Tower's closing stock price on Friday. Biogen Idec Inc BIIB shares advanced 2.69% to $101.25 in the pre-market session. Analysts at Deutsche Bank upgraded Biogen Idec from “hold” to “buy.” iShares FTSE EPRA/NAREIT Dev EU Idx IFEU climbed 2.68% to $33.83 in the pre-market session. Yahoo! Inc YHOO jumped 2.00% to $15.29 in the pre-market session. Yahoo sits at 11% of Net Online Ad Revenues, according to research firm eMarketer.