Update (4:06 p.m.): Updated with Monday closing price.
Roche will pay $74 a share, which represents a 38% premium to Friday's closing price of $53.80, in an all-cash deal.
For more on this story, read TheStreet's Adam Feuerstein's article here.Must Read: Roche Buying InterMune for $8.3 Billion STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more. The stock closed up 35.41% to $72.85. More than 51 million shares, compared to the average volume of 2,075,640. ITMN data by YCharts
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