Transdigm Group SEC Filings

TransDigm Group Inc. director W. Nicholas Howley reported multiple transactions in the issuer's common stock on 09/15/2025. The filing shows an acquisition of 2,736 shares via exercise related to a stock option with an adjusted exercise price of $50.92. The reporting person also sold a series of batches totaling 2,736 shares at weighted prices in a range from approximately $1,273.69 to $1,288.21. Following these transactions, the reporting person (through the W. Nicholas Howley Family Trust u/a/d 4/23/99) is shown as beneficially owning 21,547.513 shares of TransDigm common stock.

Robert J. Small, a director of TransDigm Group Inc. (TDG), reported multiple transactions in the company’s common stock on Form 4. The filing shows indirect holdings of 441,814 shares by Stockbridge Fund, L.P. and 60,246 shares held by family trusts. On 09/12/2025 several sales by Stockbridge Partners LLC are reported at weighted-average prices ranging approximately from $1,270.85 to $1,284.35 across multiple blocks. The filing also discloses a 09/15/2025 gift of 10,000 shares to a donor-advised fund (reported as $0 consideration). The reporting person disclaims direct beneficial ownership of the shares held by the entities named.

TransDigm Group Inc. (TDG) Form 144 notice: The filer proposes to sell Common Stock through two brokers, Goldman, Sachs & Co. and Barclays Bank PLC, each listed with 10,000 shares to be sold on or about 09/12/2025 on the NYSE. Each 10,000-share entry shows an aggregate market value of $12,873,200.00 and the issuer's outstanding shares listed as 56,350,285. The securities were acquired by open market purchases on 12/31/2017 for 10,000 shares and paid in cash on that date. The filer reports no securities sold in the past three months and includes the standard attestation that they are not aware of undisclosed material adverse information.

TransDigm Group Inc. (TDG) Form 4: Robert J. Small, a company director and managing member of related investment entities, reported transactions dated 09/02/2025. The filing shows dispositions of Common Stock totaling 17,899 shares (2,318 and 15,581 shares) at a reported price of $0 (reflecting distributions rather than market sales). After the transactions, the reporting person (indirectly) is shown as beneficially owning 441,814 shares via Stockbridge Fund, plus 88,419 shares via Stockbridge Partners LLC and 60,246 shares via managed accounts, with additional family trust holdings. The reporting person disclaims beneficial ownership except for any pecuniary interest.

TransDigm Group Inc. insider activity: Director Michael Graff executed a stock option and completed related open-market sales on 08/26/2025. Mr. Graff exercised an option for 1,760 shares with an adjusted exercise price of $156.47 and immediately sold 1,760 shares in multiple transactions at weighted average prices in ranges between $1,398.79 and $1,404.42, with reported average weighted sale prices noted per lot. Following these transactions his direct beneficial ownership is reported as 1,964 shares. He also reports indirect holdings of 7,000 shares held by certain trusts he manages and 5,096 shares held by a separate trust created by his spouse.

TransDigm Group Incorporated (TDG) notice reports a proposed sale of 1,760 common shares through Morgan Stanley Smith Barney LLC on the NYSE with an aggregate market value of $2,467,687.38. The filing shows the shares were acquired on 08/26/2025 by exercise of options under a registered plan, consisting of 820 and 940 shares respectively, with cash payment on the same date. The filer certifies no undisclosed material adverse information about the issuer and indicates no securities sold by the person in the prior three months.

Joel Reiss, Co-Chief Operating Officer of TransDigm Group (TDG), reported insider transactions on 08/20/2025. He exercised stock options to acquire 3,000 shares at an exercise price of $284.97, then sold a total of 3,000 common shares in multiple blocks at weighted average prices in the approximate ranges of $1,399.40–$1,413.60. After these transactions the reporting person beneficially owned 3,600 common shares directly. The filing also shows beneficial ownership of 53,000 shares underlying stock options exercisable through 11/08/2027. The report indicates the transactions were made pursuant to a written plan consistent with Rule 10b5-1.

TransDigm Group Incorporated filed an 8-K reporting material agreements dated August 19, 2025. The filing includes indentures and forms for two note issuances: a 6.250% Senior Secured Note due 2034 and a 6.750% Senior Subordinated Note due 2034. Both indentures reference TransDigm Inc. as issuer with TransDigm Group Incorporated and subsidiary guarantors as applicable.

The company also disclosed Amendment No. 18 and an Incremental Term Loan Assumption Agreement, dated August 19, 2025, to its Second Amended and Restated Credit Agreement (originally dated June 4, 2014). A press release dated August 20, 2025, and the cover page interactive XBRL file are included as exhibits. The filing is signed by Sarah Wynne.