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TransDigm Group Inc. planned insider sales

In the twelve months since 23 September 2025 insiders at TransDigm Group Inc. filed 27 Form 144 notices of planned sales, 399,256 shares worth $532.8 million at the time of filing, from 7 sellers. The latest, filed 15 September 2026: Joel Reiss (officer), 8,000 shares worth $8.9 million, planned for around 15 September 2026 through Morgan Stanley Smith Barney LLC Executive Financial Services.

FiledSellerRelationshipSharesValuePlanned saleBrokerHow acquiredFiling
15 September 2026Joel ReissOfficer8,000$8.9 million15 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
7 August 2026The Fortuna Trust U/T/A Dtd 06/01/2018Director37,690$47.6 million7 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
18 June 2026Howley W NicholasOfficer30,396$40.1 million18 June 2026Stifel Nicolaus & Company IncStock Option ExerciseForm 144
15 June 2026Joel ReissOfficer11,700$14.7 million15 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
18 February 2026Howley W NicholasOfficer40,564$53.0 million18 February 2026Stifel Nicolaus & Company IncStock Option ExerciseForm 144
17 February 2026Joel ReissOfficer15,600$20.1 million17 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
2 February 2026Patrick J. MurphyOfficer1,160$1.7 million2 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
2 February 2026The Fortuna Trust U/T/A Dtd 06/01/2018Director48,000$68.5 million2 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
14 January 2026The Fortuna Trust U/T/A Dtd 06/01/2018Director7,627$10.5 million14 January 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
8 January 2026The Fortuna Trust U/T/A Dtd 06/01/2018Director17,373$24.1 million8 January 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
5 January 2026The Fortuna Trust U/T/A Dtd 06/01/2018Director25,000$34.0 million5 January 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
2 January 2026Patrick J. MurphyOfficer290$385,6562 January 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
10 December 2025Robert SmallDirector4,700$6.1 million10 December 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of options under a registered planForm 144
9 December 2025Stockbridge Partners LLCMay be deemed affiliate100,000$134.7 million9 December 2025Goldman, Sachs & Co.Open market purchasesForm 144
4 December 2025The Fortuna Trust U/T/A Dtd 06/01/2018Director17,526$23.4 million4 December 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
1 December 2025Patrick J. MurphyOfficer290$394,4491 December 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
28 November 2025The Fortuna Trust U/T/A Dtd 06/01/2018Director4,592$6.2 million28 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
26 November 2025The Fortuna Trust U/T/A Dtd 06/01/2018Director30$40,57626 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
25 November 2025The Fortuna Trust U/T/A Dtd 06/01/2018Director4,187$5.6 million25 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
21 November 2025The Fortuna Trust U/T/A Dtd 06/01/2018Officer230$305,41021 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
20 November 2025The Fortuna Trust U/T/A Dtd 06/01/2018Officer1,104$1.5 million20 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
18 November 2025The Fortuna Trust U/T/A Dtd 06/01/2018Officer7,191$9.6 million18 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
17 November 2025Howley W NicholasOfficer2,736$3.7 million17 November 2025Stifel Nicolaus & Company IncStock Option ExerciseForm 144
17 November 2025Joel ReissOfficer11,700$15.7 million17 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
3 November 2025Patrick J. MurphyOfficer290$379,4683 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
27 October 2025Patrick Joseph MurphyOfficer580$788,39427 October 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
27 October 2025The Fortuna Trust U/T/A Dtd 06/01/2018Officer700$951,51027 October 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144

A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was. Value is the filer's own aggregate market value. Whether the sale happened shows up later on Form 4, on the insiders page.

Source

Form 144 filings on EDGAR for TransDigm Group Inc.: the company's filing index, each notice read from its own XML.

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