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Re:

Did Boeing’s Spirit AeroSystems Acquisition Close? The December 2025 Timeline

Boeing completed its Spirit AeroSystems acquisition on December 8, 2025, after its mid-2025 target moved to the fourth quarter amid an Airbus asset disposition and regulatory closing conditions.
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Yes. Boeing completed its acquisition of Spirit AeroSystems on December 8, 2025, later than its original mid-2025 target. Spirit had revised the expected closing window to the fourth quarter of 2025 while the parties worked through an Airbus-related asset sale and regulatory closing conditions.

How the expected closing date changed

  • July 1, 2024: Boeing announced a definitive all-stock merger agreement and said it expected to close in mid-2025. The agreement was contingent on the disposition of Spirit operations tied to Airbus commercial work packages, as well as customary conditions including regulatory and Spirit shareholder approvals. Boeing estimated total transaction value at approximately $8.3 billion, including Spirit’s last reported net debt. Boeing’s announcement.
  • April 28, 2025: Airbus announced a definitive agreement to acquire specified Spirit industrial assets serving Airbus programmes. Airbus planned to close that transaction in the third quarter of 2025, subject to regulatory and customary approvals. Airbus’s announcement.
  • Second quarter of 2025: Spirit revised its expected Boeing merger close to the fourth quarter of 2025. It cited the Airbus-related divestiture and other closing conditions, including regulatory approvals. Spirit also disclosed that Boeing and Spirit had received second requests from the Federal Trade Commission (FTC). Under the Hart-Scott-Rodino (HSR) process described by Spirit, the waiting period extended until 30 days after substantial compliance or earlier termination by the FTC. Spirit’s second-quarter update.
  • December 8, 2025: Boeing completed the acquisition, and Airbus closed its purchase of the specified Spirit assets the same day. Boeing’s completion announcement and Airbus’s closing announcement.

Why did the timetable move?

The documented timetable gates were the Airbus-business disposition and regulatory approvals. Spirit’s disclosure of FTC second requests and the resulting extended HSR waiting period shows that antitrust review was part of the process. The official records cited here do not establish one exclusive cause for the schedule change, so it would be inaccurate to attribute the delay solely to the FTC.

How the Boeing deal and Airbus sale fit together

The two transactions divided Spirit operations according to the work they performed. Boeing acquired Spirit’s Boeing-related commercial operations, while Airbus acquired specified assets serving Airbus programmes. The Airbus asset sale was a condition tied to the Boeing transaction, making the carve-out central to the closing timetable.

Transaction Scope and operating arrangement Reported scale or value
Boeing acquisition Boeing said it acquired Spirit’s Boeing-related commercial operations, including 737 fuselages and major structures for the 767, 777 and 787, as well as certain commercially procured fuselages for the P-8 and KC-46. Aftermarket operations also came in-house. Boeing described the Wichita, Dallas, Tulsa and Prestwick operations as beginning integration. Spirit Defense was to operate as a non-integrated subsidiary of Boeing Defense, Space & Security, with independent governance and operations while supporting defense customers. Portions of Belfast operations became Short Brothers, a Boeing company. Approximately 15,000 teammates across five sites became part of Boeing, according to Boeing’s 2025 completion announcement.
Airbus asset disposition Airbus acquired specified former Spirit sites or activities in Kinston, Saint-Nazaire, Casablanca, Belfast and Prestwick, plus A220 pylon production transferred from Wichita to Toulouse. Airbus reported $439 million in compensation, subject to adjustments and post-closing review, and said more than 4,000 colleagues joined Airbus through the transaction.

What the FTC order timing means

The FTC says it accepted a consent order subject to final approval on December 2, 2025, before the December 8 acquisition close, and finalized the order in February 2026. The February finalization therefore came after closing. The order addressed access to commercial and military aerostructure inputs; its chronology should not be confused with the separate fact that the parties completed the acquisition in December. FTC’s order announcement.

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How to read the deal’s reported value

Boeing’s 2024 announcement described the transaction as having an approximate total value of $8.3 billion, including Spirit’s last reported net debt. Boeing’s 2026 acquisition accounting disclosure later reported a fair value of total consideration of $8.389 billion. These figures use different wording and reflect different reporting contexts; the 2026 accounting figure is not simply a restatement of the 2024 announcement estimate. Boeing’s 2026 filing.

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What Boeing said would happen after closing

At completion, Boeing CEO Kelly Ortberg described the next phase this way: “This is a pivotal moment in Boeing’s history and future success as we begin to integrate Spirit AeroSystems’ commercial and aftermarket operations and establish Spirit Defense.” The statement was made in Boeing’s December 8, 2025 completion announcement.

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