Check out the companies making headlines after the bell Tuesday:
Shares of the food service provider Sysco tumbled about 3 percent after a judge said its merger with U.S. Foods should be stopped for further antitrust review.
Aircraft maker Boeing named its president and chief operating officer, Dennis Muilenburg, as its new CEO effective July 1. He succeeds James McNerney, who will remain with the company as chairman. Shares fell about 1 percent after announcement.
Bluebird Bio shares fell about 1 percent after the biotech firm commenced a public offering of $400 million of its common stock.
Shares of the small-cap social networking firm MeetMe surged as much as 22 percent after it increased its full-year guidance.