After-hours movers: JetBlue falls after terminating Northeast Alliance, rival Spirit Airlines gains

After-Hours Stock Movers:

Spirit Airlines (NYSE:) 2% HIGHER; gains after rival JetBlue terminated the Northeast Alliance (NEA) with American Airlines (NASDAQ:) after saying it will not appeal a court ruling.

Nkarta Inc (NASDAQ:) 2% HIGHER; announced the appointment of Alyssa Levin as Chief Financial and Business Officer.

JetBlue Airways Corp (NASDAQ:) 1% LOWER; terminated the Northeast Alliance (NEA) with American Airlines after saying it will not appeal a court ruling.

Plug Power (NASDAQ:) 1% HIGHER; adds to intra-day gains after Citi initiated coverage on with a Buy rating and a price target of $13.00.