Benzinga's Top Upgrades

Analysts at Piper Jaffray upgraded Amgen (NASDAQ: AMGN ) from “neutral” to “overweight.” The price target for Amgen has been raised from $120 to $140. Amgen's shares closed at $105.60 on Friday. Analysts at Canaccord Genuity upgraded Darling International (NYSE: DAR ) from “hold” to “buy.” The target price