(Reuters) - Lockheed Martin Corp
Lockheed's shares fell on Friday after Trump's message on Twitter, and after he earlier tweeted that he had asked rival Boeing Co
Hewson said in a statement tweeted by Lockheed that the company would "aggressively" drive down the cost of the F-35, which brought in about 20 percent of Lockheed's sales last year.
Trump's transition team did not immediately respond to requests for comment.
Lockheed shares ended down nearly 1.3 percent in Friday trading on the New York Stock Exchange.
(Reporting by Anya George Tharakan in Bengaluru, editing by G Crosse)
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