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Orbital ATK [OA] on Wednesday posted preliminary results for its fourth quarter with double-digit increases in both earnings and sales.Net income rose 17 percent to $62.1 million, $1.08 earnings per share (EPS), from $53.3 million (89 cents EPS) a year ago. Sales increased 11 percent to a record $1.3 billion from $1.1 billion a year ago. Operating margin was 9 percent, up from 8.2 percent a year ago.Excluding costs associated with the merger of the Orbital Sciences and Alliant Techsystems…
