Shares of Amgen may be forming a bearish head and shoulder pattern. In the case the neckline is broken, price could fall within weeks to below $150.00. However we must take into account that Amgen share price is not currently in a bearish trend, but a long bullish one. This is a pattern formation that is being put on watch, in case it breaks. Once the share price approaches the neckline, we may develop a bearish strategy.