Benzinga's Top #PreMarket Gainers

iBio IBIO shares jumped 78.91% to $2.63 in pre-market trading after a Texas healthcare worker, who treated the first US Ebola patient, has now himself tested positive for Ebola, according to the Texas Department of State Health Services. Allied Healthcare Products AHPI gained 14.85% to $3.79 after jumping 78.38% on Friday. Atlas Pipeline Partners LP APL shares jumped 9.13% to $36.69 in pre-market trading after Targa Resources Partners LP NGLS and Targa Resources Corp TRGP announced the purchase of Atlas Pipeline Partners LP and Atlas Energy LP ATLS for $7.7 billion. CSX CSX shares rose 8.88% to $32.60 in pre-market trading. Canadian Pacific Railway CP has reportedly approached CSX about a potential merger, that would create a $62 billion North American railway powerhouse, according to sources, as reported by WSJ. The approach made in the past week, was rebuffed by CSX, according to people familiar with the matter.