
Orbital ATK [OA] on Thursday said its fourth quarter net income fell slightly due to a one-time tax charge although operating results overall were strong.The company didn’t host an investor call and the earnings report is likely the last before it is acquired by Northrop Grumman [NOC], which is expected to occur during the first half of 2018. Orbital ATK also didn’t provide guidance due to the pending acquisition.Net income fell 5 percent to $61.2 million, $1.06 earnings per share…