CHANTILLY, Va.–(BUSINESS WIRE)—- $AMTM #GlobalHQ–Amentum (NYSE: AMTM), a global leader in advanced engineering and technology solutions, will open a new worldwide headquarters in Reston, Virginia in early 2027. The company has signed a 45,000-square-foot lease at 1900 Reston Metro Plaza located in the heart of Reston Station’s Metro Plaza District. The LEED-Gold certified building designed by world-renowned architect Helmut Jahn, is a sixteen-story office tower with immediate access to Metro’s Silver Line with