Welcome to our dedicated page for Transdigm Group SEC filings (Ticker: TDG), 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.
TransDigm Group Incorporated (NYSE: TDG) files a variety of documents with the U.S. Securities and Exchange Commission that provide detailed insight into its aerospace components business, capital structure and governance. This page compiles TransDigm’s SEC filings and pairs them with AI-powered summaries to help readers interpret the information more efficiently.
Investors can use this resource to locate annual reports on Form 10-K and quarterly reports on Form 10-Q, which typically describe TransDigm’s business segments, risk factors, product categories and financial results. For this company, filings often discuss its role as a designer, producer and supplier of highly engineered aircraft components, its organization into segments such as power and control and airframes, and its use of acquisitions and financial leverage as part of its strategy, as reflected in the Polygon description and company disclosures.
Current reports on Form 8-K are particularly important for tracking material events at TransDigm. Recent 8-K filings describe acquisitions such as the Simmonds Precision Products business and a definitive agreement to acquire Stellant Systems, debt offerings and amendments to the company’s credit agreement, special cash dividends funded with new debt and changes in executive leadership and board composition. These documents provide timely details on transactions, financing terms and governance decisions.
This page also offers access to filings related to debt instruments and credit agreements, where TransDigm outlines terms for senior secured notes, senior subordinated notes and term loans, as well as any amendments that reprice or extend these facilities. Where available, insider transaction reports on Form 4 and proxy statements on Schedule 14A can shed light on executive and director share ownership and compensation structures.
Stock Titan’s platform enhances these filings with AI-generated highlights and explanations, helping users quickly identify key sections, understand complex capital structure language and see how new 8-K events connect to prior disclosures. Real-time updates from EDGAR ensure that new TransDigm filings appear promptly, while the AI layer reduces the time needed to parse lengthy documents and track the regulatory record for TDG.
TransDigm Group Incorporated announced two Board appointments. On October 23, 2025, the Board named Michael Lisman, the Company’s President and CEO, and Peter Palmer, a former Executive Vice President, as directors, effective immediately.
Lisman previously served as Co-Chief Operating Officer, Chief Financial Officer and Executive Vice President, including leading M&A. Palmer retired at the end of 2024 after a 24-year career, with leadership roles across operating units and experience in governance and mergers and acquisitions. Neither appointee was assigned to Board committees, and the Company disclosed no related party transactions under Item 404(a).
TransDigm Group (TDG): insider transaction — Co‑Chief Operating Officer Joel Reiss exercised 3,000 stock options at $284.97 and, on the same day (10/20/2025), sold 3,000 common shares in multiple open‑market trades.
The reported sales were executed in tranches priced between $1,272.04 and $1,284.00, with several weighted‑average prices disclosed. Following these transactions, Mr. Reiss reported 3,600 common shares beneficially owned directly. He also reported 47,000 derivative securities (stock options) beneficially owned, with the exercised option series having an exercise price of $284.97, first exercisable on 09/30/2021 and expiring on 11/08/2027.
TransDigm Group (TDG): Director W. Nicholas Howley, through the W. Nicholas Howley Family Trust u/a/d 4/23/99, reported an option exercise and related share sales on 10/15/2025. The trust exercised stock options for 2,736 shares at $50.92 per share (exercise price adjusted for dividends declared since August 1, 2022) and executed multiple sales totaling 2,736 shares.
Sale prices were recorded at weighted averages across individual trades, with disclosed ranges from $1,291.6700 to $1,308.24. Following these transactions, the trust beneficially owns 21,547.513 shares of common stock indirectly. The filing also shows 1,881 derivative securities remaining beneficially owned indirectly after the reported transactions.
TransDigm Group (TDG) disclosed the appointment of Mr. Lisman as President and Chief Executive Officer and stated the company executed a Second Amended and Restated Employment Agreement with him dated
TransDigm (TDG) insider activity: Joel Reiss, listed as Co-Chief Operating Officer, reported transactions dated 09/22/2025. He exercised a stock option covering 3,000 shares at an exercise price of $284.97 and simultaneously sold 3,000 common shares in multiple trades at weighted average prices reported in ranges of approximately $1,270.01 to $1,279.40 per share.
After these transactions Reiss beneficially owned 3,600 shares of common stock and continued to hold 50,000 stock options exercisable through 11/08/2027. The Form 4 was signed by an attorney-in-fact on 09/24/2025 and includes weighted-average price explanations for the sales.
Amended Form 4 for TransDigm Group Inc. (TDG) shows that Robert J. Small, a director, filed an amendment correcting a prior filing and reporting a disposition of 5,625 shares. The earliest transaction date reported is 09/19/2025, and the amendment was filed on 09/22/2025. The filing states the prior Form 4 included an incorrect amount of common stock directly owned by the reporting person. Ownership following the reported transaction is listed as direct. No price per share or proceeds are disclosed in the submitted text.
TransDigm Group Inc. (TDG) director Michele Santana received 29 shares of common stock on 09/19/2025 as payment under the company's Director Share Plan. The filing states the shares were issued in lieu of a semi-annual director fee and were valued at $1,288.13. After the transaction Ms. Santana beneficially owned 741 shares, held directly. The Form 4 was signed by an attorney-in-fact on 09/22/2025 and indicates the issuance followed the plan's fair market value provisions.
Sean P. Hennessy, a director of TransDigm Group Inc. (TDG), reported a non-derivative transaction dated 09/19/2025 in which he acquired 36 shares of the issuer under the companys Director Share Plan in lieu of a semi-annual director fee. The form lists a price of $1,288.13 and shows 33,749.09 shares beneficially owned following the reported transaction. The filing explicitly states the receipt of stock was made in accordance with the Director Share Plan and valued at fair market value. The Form 4 was signed on 09/22/2025 by an attorney-in-fact.
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