Benzinga's Top #PreMarket Gainers

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

gained 14.85% to $3.79 after jumping 78.38% on Friday. Atlas Pipeline Partners LP

shares jumped 9.13% to $36.69 in pre-market trading after Targa Resources Partners LP

and Targa Resources Corp

announced the purchase of Atlas Pipeline Partners LP and Atlas Energy LP

for $7.7 billion. CSX

shares rose 8.88% to $32.60 in pre-market trading. Canadian Pacific Railway

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.