WASHINGTON — Lockheed Martin Corp. Chairman and Chief Executive Robert Stevens has announced plans to retire at the end of the year, the Bethesda, Md.-based company announced April 26.

Stevens will be succeeded as chief executive Jan. 1, 2013, by Christopher E. Kubasik, 51, who currently serves as Lockheed Martin’s president and chief operating officer. Kubasik will be succeeded in that capacity by Marilyn Hewson, executive vice president of Lockheed Martin’s Electronic Systems business.

Stevens, 60, has been with Lockheed Martin, the United States’ largest defense and space contractor, for 25 years. Pending shareholder approval, he will stay on as chairman through January 2014, Lockheed Martin said.



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Warren Ferster is the Editor-in-Chief of SpaceNews and is responsible for all the news and editorial coverage in the weekly newspaper, the spacenews.com Web site and variety of specialty publications such as show dailies. He manages a staff of seven reporters...