Formerly an orphan-drug designee, Danicopan treats PNH, a rare acquired blood disease.

Healthcare giant Johnson & Johnson cut costs by laying off 297 staffers tied to its insulin pump business, while also buying a German surgical software company and inking a deal with biotech company targeting hepatitis B treatments.

Wall Street starts the week with a rally.

The Dow is up more than 250 points.

Wall Street moves higher.

The New Haven, Conn.-based firm on Sept. 9 received a termination notice regarding its license and collaboration pact with Johnson & Johnson's Janssen Pharmaceuticals Inc. on hepatitis C.

Thursday's downgrade is in part based on a lack of confidence in Achillion's CH-4471 to compete with Alexion Pharmaceuticals' Soliris treatment.

And then there is Mylan.

Here's how to potentially rake in some fat profits off a number of hot breakout setups.

Universal Studios has begun construction on Epic Universe, its third theme park planned for Florida.

The e-commerce giant has just made a decision that suggests the health of the economy is not improving.

The Tesla CEO has put his offer for Twitter back on the table. And as rich as he is, investors are worried.