Spirit AeroSystems Holdings, Inc. is an American manufacturer of aerostructures for commercial airplanes, headquartered in Wichita, Kansas, and wholly owned by Boeing. The company produces fuselage sections for Boeing's 737 and 787 aircraft, as well as the flight deck sections for a majority of Boeing airliners. Spirit also supplies Airbus with fuselage sections and front wing spars for the A350 and wings for the A220. Spirit's primary competitors in the aerostructures market include Collins Aerospace, Kawasaki Heavy Industries, Leonardo, and Triumph Group. Spirit AeroSystems was established in 2005 when Boeing spun-off its Wichita division to an investment firm. Boeing entered into an agreement to re-acquire Spirit in July 2024 for $4.7 billion. Concurrently with Boeing’s completed acquisition of Spirit AeroSystems, Spirit has transferred specific assets involved in Airbus production directly to Airbus under a definitive agreement announced in April 2025. As of December 2025, both transactions received the necessary regulatory approvals and closing conditions have been satisfied. Wikipedia