Chart courtesy of stockcharts

Shares of the Biogen were up today more than 18% to $82.51 after early in the morning company said it may sell itself and has attracted some interest from potential buyers. Stock immediately react to this news sending shares to a new 52 week year high, breaking also a key resistance that has been $69. Looking at the chart above, stock is trading in a clear Bullish momentum with its averages lines all going up and indicators following the same way. RSI is now in Overbought conditions, so a pull probably should occur soon, so keep an eye on BIIB in the sessions ahead.