Reuters reports that “U.S. President-elect Donald Trump took aim at another major defense contractor on Monday, saying the cost of Lockheed Martin’s F-35 fighter jet program was too high.”

“‘The F-35 program and cost is out of control. Billions of dollars can and will be saved on military (and other) purchases after January 20th,’ Trump said on Twitter.”

“The aerospace giant’s shares dropped 2.6 percent in premarket trade after Trump’s tweet.”