Boeing and Airbus have finalized major acquisitions of Spirit AeroSystems assets, marking a significant shift in aerospace manufacturing structure. Boeing secured Spirit’s commercial operations and MRO services, adding approximately 15,000 employees, while Airbus completed its USD 439 million acquisition of sites across four countries, bringing over 4,000 employees into its operations. The transactions effectively end Spirit’s 20-year run as an independent multi-OEM supplier, with both manufacturers returning to vertical integration for critical structural components.