Welcome to our dedicated page for Spirit Aerosys SEC filings (Ticker: SPR), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
This page compiles historical SEC filings for Spirit AeroSystems Holdings, Inc. (former NYSE: SPR), which became a wholly owned subsidiary of The Boeing Company on December 8, 2025. These documents trace Spirit’s evolution as a public aerostructures manufacturer through its final days as an independent registrant and provide detailed insight into its commercial, defense and aftermarket businesses.
Key filings include Forms 10‑K and 10‑Q, where Spirit reported segment results for Commercial, Defense & Space and Aftermarket operations, disclosed backlog tied to Boeing and Airbus programs, and discussed risks such as supply chain fragility, program‑specific forward losses and liquidity constraints. Earnings‑related Forms 8‑K furnish press releases on quarterly and annual results, including information on changes in estimates, excess capacity costs and customer advances.
For corporate events, multiple Form 8‑K filings describe the Agreement and Plan of Merger with The Boeing Company, the stock and asset purchase agreement with Airbus SE for Airbus‑related businesses, and the share purchase agreement with CTRM for the Subang, Malaysia facility. Additional 8‑Ks address the sale of Fiber Materials Inc., amendments to bridge and term loan credit agreements, and litigation developments in the Delaware Court of Chancery.
Two filings mark the end of SPR as a listed and reporting company: a Form 25 filed by the New York Stock Exchange on December 8, 2025 to remove Spirit’s Class A common stock from listing and registration under Section 12(b), and a Form 15 filed on December 18, 2025 terminating registration under Section 12(g) and suspending reporting obligations under Sections 13 and 15(d). Together, they confirm SPR’s transition from a public issuer to a Boeing subsidiary.
On this page, users can access these historical filings and rely on AI‑generated summaries to quickly understand complex disclosures, from merger mechanics and debt amendments to segment performance and risk factors. While insider transaction reports such as Form 4 are part of the broader SEC record, post‑merger governance and compensation details for Spirit’s operations are now reflected within Boeing’s consolidated filings rather than under the SPR ticker.
Spirit AeroSystems insider transactions by President & CEO Patrick M. Shanahan on 09/30/2025. The filing reports the acquisition of 152,895 restricted stock units (RSUs) that convert one-for-one into Class A common stock and a contemporaneous sale of 62,687 Class A shares at $38.60 per share. After the RSU grant the filing shows 417,576 shares beneficially owned, and after the sale 354,889 shares beneficially owned.
The filing discloses that the RSUs are part of a 495,662 RSU grant made on 09/30/2023 that vests in three annual installments beginning the first anniversary of the grant date. The form is signed by an attorney-in-fact for the reporting person.
Hill City Capital and affiliated entities disclosed ownership of 3,949,299 shares of Spirit AeroSystems Class A common stock, equal to 3.37% of the class based on 117,419,234 shares outstanding as of July 18, 2025. The holdings are reported as shared voting and dispositive power with no sole voting or dispositive power. The filing identifies the reporting persons as Hill City Capital Master Fund LP (Cayman), Hill City Capital GP LLC (Delaware), Hill City Capital LP (Delaware), Hill City GP LLC (Delaware) and Herbert Frazier (U.S.). The reporting persons certify the securities were not acquired to change or influence control of the issuer.
Balyasny Asset Management and affiliated entities filed a Schedule 13G reporting beneficial ownership of 6,502,847 shares of Spirit AeroSystems common stock, equal to 5.54% of the class based on 117,318,941 shares outstanding as of April 18, 2025 per the issuer's May 1, 2025 quarterly report. The filing identifies the reporting persons as Balyasny Asset Management L.P., BAM GP LLC, Balyasny Asset Management Holdings LP, Dames GP LLC and Dmitry Balyasny, each of which discloses sole voting and sole dispositive power over the reported shares.
The filing states the shares are held directly by Atlas Diversified Master Fund, Ltd. (ADMF), which has the right to receive dividends or sale proceeds. The filers certify the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer. Signatures on the filing are dated 08/10/2025.
Spirit AeroSystems disclosed that on August 8, 2025 its subsidiaries entered into a Share Purchase Agreement to sell all equity interests in Spirit AeroSystems Malaysia Sdn. Bhd. to Composites Technology Research Malaysia Sdn. Bhd. for an aggregate purchase price of $95.2 million in cash, subject to specified adjustments. Closing is conditioned on purchaser approval by the European Commission and the U.S. Federal Trade Commission in connection with the Boeing acquisition review, customary regulatory approvals including Hart-Scott-Rodino clearance, absence of legal impediments, accuracy of representations and warranties, performance of contractual obligations and Parent shareholder approval. The agreement includes termination provisions, reciprocal $7.0 million termination-fee mechanics and an outside date of December 31, 2025 with one automatic 90-day extension under specified conditions. A press release and the Share Purchase Agreement are filed as exhibits.