FRANKLIN LAKES, N.J. — In separate meetings, shareholders of Medco Health Solutions here and Express Scripts, St. Louis, approved a proposed merger agreement between the two pharmacy benefit managers.

Federal officials Monday gave the go-ahead to the proposed merger between Cigna, one of the nation’s largest health insurers, and Express Scripts, a major pharmacy benefit manager. The $52-billion ...

JetBlue Airways (NASDAQ:JBLU) and Spirit Airlines (NYSE:SAVE) are on watch after the companies urged a U.S. appeals court to overturn a judge's ruling that blocked the planned $3.8B merger at the ...