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 Holdings, Inc. (SPR) VP and Corporate Controller reported changes in his ownership following the company’s merger with The Boeing Company. On December 8, 2025, his 13,610 shares of Spirit Class A common stock were disposed of when each share was automatically canceled and converted under the merger terms.
Each Spirit share was converted into the right to receive Boeing common stock at a fixed exchange ratio of 0.1955. In addition, his 11,683 restricted stock units (RSUs) tied to Spirit stock were automatically converted into Boeing RSUs, with the number of Boeing shares for each award based on the same 0.1955 exchange ratio. These Boeing RSUs keep the same vesting and other terms that applied to the original Spirit RSUs, and any accrued but unpaid dividend equivalents were carried over to the new Boeing awards.
Spirit AeroSystems Holdings, Inc. (SPR) director transactions reflect the closing of its merger with The Boeing Company. On December 8, 2025, under the Merger Agreement, each share of Spirit Class A common stock was automatically canceled and converted into the right to receive Boeing common stock at a fixed exchange ratio of 0.1955 Boeing shares per Spirit share.
The reporting director disposed of 23,912 and 7,009 Spirit Class A shares, leaving no Class A shares owned directly after the conversion. In addition, 1,356 restricted stock units were canceled. For both restricted shares and restricted stock units held by non-employee directors, holders became entitled to receive Boeing common stock based on the same 0.1955 exchange ratio multiplied by the number of underlying Spirit shares.
Spirit AeroSystems Holdings, Inc. (SPR) reported that its President and CEO, who also serves as a director, disposed of his Class A common stock and Spirit restricted stock units in connection with the company’s merger with The Boeing Company. On December 8, 2025, each Spirit share was automatically canceled and converted into the right to receive Boeing common stock at a fixed exchange ratio of 0.1955 Boeing shares for each Spirit share. The reporting person’s 358,787 Spirit shares were thus fully converted.
On the same date, the executive’s 164,726 Spirit restricted stock units were automatically converted into Boeing RSUs. Each new Boeing RSU represents Boeing common stock calculated by multiplying the Spirit RSUs by the same 0.1955 exchange ratio, rounded to the nearest whole share. Any accrued but unpaid dividend equivalents on the Spirit RSUs were assumed by Boeing and attached to the corresponding Boeing RSUs, which continue under the same vesting and other terms that applied immediately before the merger became effective.
Spirit AeroSystems Holdings director reports share conversion tied to Boeing merger. On December 8, 2025, each share of Spirit Class A common stock was automatically canceled and converted into the right to receive 0.1955 shares of Boeing common stock, as provided in the Merger Agreement among Spirit, The Boeing Company and Sphere Acquisition Corp. A non-employee director disposed of all reported Spirit shares, including restricted stock awards, which were canceled and replaced with the right to receive Boeing shares based on the same 0.1955 exchange ratio for each underlying Spirit share.
Spirit AeroSystems Holdings, Inc. (SPR) executive Paul N. Walters reported automatic changes to his equity holdings following the completion of the company’s merger with The Boeing Company. On December 8, 2025, each share of Spirit Class A common stock was canceled and converted into the right to receive Boeing common stock at a fixed exchange ratio of 0.1955 Boeing share for each Spirit share, under the previously signed Merger Agreement. Walters reported the disposition of 4,305 Spirit Class A shares, leaving him with no Spirit common stock directly owned.
The filing also shows changes to his equity-based awards. Walters held 12,464 restricted stock units (RSUs) tied to Spirit shares, which were automatically converted into RSUs denominated in shares of Boeing common stock using the same 0.1955 exchange ratio, rounded to the nearest whole share. Any accrued but unpaid dividend equivalents on these Spirit RSUs were also assumed and attached to the new Boeing RSUs. These Boeing RSUs keep the same vesting schedule and other terms that applied immediately before the merger’s effective time.
Spirit AeroSystems Holdings, Inc. (SPR)December 8, 2025, all 28,864 shares of Spirit Class A common stock beneficially owned by the executive were disposed of, as each share was automatically canceled and converted into the right to receive Boeing common stock at a fixed exchange ratio of 0.1955 Boeing shares per Spirit share under the merger agreement.
The filing also shows that 24,182 restricted stock units (RSUs) tied to Spirit shares were disposed of and simultaneously converted into Boeing RSUs. Each Boeing RSU now represents Boeing common stock based on the same 0.1955 exchange ratio, rounded to the nearest whole share, and continues under the same vesting and other terms that applied immediately before the merger’s effective time, including any associated dividend equivalents.
Spirit AeroSystems EVP & CFO filed a Form 4 reporting automatic changes in his holdings after the company’s merger with The Boeing Company. On December 8, 2025, his 41,849 shares of Class A common stock were canceled and converted into the right to receive Boeing common stock based on a fixed 0.1955 exchange ratio per Spirit share under the merger agreement.
The filing also notes that 65,010 restricted stock units (RSUs), which would normally settle one-for-one in Spirit shares when vested, were canceled in connection with the merger. For applicable RSUs, the holder instead became entitled to receive Boeing shares determined by multiplying the number of underlying Spirit shares by the same exchange ratio, subject to tax withholding.
Spirit AeroSystems Holdings, Inc. director reported the automatic conversion of company stock into Boeing shares following the completion of a merger with The Boeing Company on December 8, 2025. The filing shows dispositions of Class A common stock and restricted stock as the Spirit shares were canceled and converted under an Agreement and Plan of Merger with Boeing and Sphere Acquisition Corp. dated June 30, 2024.
Each share of Spirit Class A common stock, including restricted stock awards held by non-employee directors, was converted into the right to receive Boeing common stock at a fixed exchange ratio of 0.1955 Boeing shares for each Spirit share, subject to applicable tax withholding on restricted shares.
Spirit AeroSystems Holdings, Inc. director Robert D. Johnson reported the automatic conversion of his Class A common stock following the company’s merger with The Boeing Company. On December 8, 2025, each Spirit AeroSystems share was canceled and converted into the right to receive Boeing common stock at an exchange ratio of 0.1955 Boeing shares for each Spirit share.
The filing shows dispositions of Class A shares held directly and through The RDJ Trust, with post-transaction direct holdings reported as zero and 10,379 shares remaining in one line item. Restricted stock awards held by non-employee directors were also canceled and replaced with the right to receive Boeing shares based on the same exchange ratio.
Spirit AeroSystems Holdings, Inc. director Ronald T. Kadish reported automatic conversion of his Class A common stock and restricted stock in connection with the company’s merger with The Boeing Company. On December 8, 2025, under the Merger Agreement among Spirit, Boeing and Sphere Acquisition Corp., each Spirit share was canceled and converted into the right to receive Boeing common stock at a fixed exchange ratio of 0.1955 Boeing share for each Spirit share.
The filing shows Kadish’s indirect holdings in the Ronald T. Kadish Trust & Cynthia S. Kadish Trust and his direct holdings in Spirit common stock going to zero as a result of this share-for-share conversion. Restricted stock awards held by non‑employee directors were also canceled and converted into the right to receive Boeing shares using the same 0.1955 exchange ratio, subject to applicable tax withholding.