Insider Transactions Reported by 22 Insiders of TransDigm Group INC

Symbol
TDG on NYSE
Location
Cleveland, OH

Insiders trading volume in the past year

TransDigm Group INC executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Robert J. Small Director $661,054,690 -$199,058,216 -23% 25 Feb 2026
Raymond F. Laubenthal Director $161,022,285 28 Mar 2022
Sean P. Hennessy Director $43,473,215 -$6,751,660 -13% 04 Nov 2025
David Barr Director $41,397,921 04 Nov 2025
W. Nicholas Howley Director $28,271,132 -$119,937,852 -81% 18 Feb 2026
Michael Graff Director $18,561,150 -$2,467,687 -12% 21 Nov 2025
Kevin M. Stein Director $11,751,435 -$213,060,435 -95% 02 Feb 2026
Michael Lisman President & CEO, Director $6,858,262 +$3,836,722 +127% 06 Feb 2026
Peter Palmer Director $5,272,079 04 Nov 2025
Joel Reiss Co-Chief Operating Officer $4,500,915 -$59,428,950 -93% 16 Mar 2026
Sarah Wynne Chief Financial Officer $2,739,563 -$7,256,865 -73% 05 Feb 2026
Mervin Dunn. Director $1,606,161 16 Nov 2022
Michele Santana Director $954,504 04 Nov 2025
Patrick Joseph Murphy Co-Chief Operating Officer $873,132 -$2,357,616 -73% 24 Feb 2026
Jane M. Cronin Director $862,557 04 Nov 2025
Jessica L. Warren GC, CCO, Secretary $819,375 -$698,250 -46% 13 May 2025
John Staer Director $93,573 10 Feb 2023
III Jorge L. Valladares Director $0 -$14,199,147 -100% 13 May 2025
Halle Fine Terrion GC, CCO, Secretary 12 Nov 2021
Armani Vadiee GC, CCO, Secretary 04 Nov 2025
Robert S. Henderson Exec.V.P. 01 Nov 2021
Gary E. McCullough Director 04 Nov 2025

Recent Insider Transactions by Companies or Individuals for TransDigm Group INC

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Joel Reiss TDG Common Stock Sale -52% $4,850,431 $1243.70 -3,900 3,600 16 Mar 2026 Direct
Joel Reiss TDG Common Stock Options Exercise 108.3% 3,900 7,500 16 Mar 2026 Direct
Joel Reiss TDG Stock Option Options Exercise -12.4% -3,900 27,500 16 Mar 2026 Direct
Robert J. Small TDG Common Stock Purchase $1,285 $1285.00 1 366,142 25 Feb 2026 By Stockbridge Fund, L.P.
Patrick Joseph Murphy TDG Common Stock Options Exercise 138.4% 1,460 2,515 24 Feb 2026 Direct
Patrick Joseph Murphy TDG Stock Option Options Exercise -100% -1,460 0 24 Feb 2026 Direct
W. Nicholas Howley TDG Common Stock Sale -32.1% $13,296,510 $1307.68 -10,168 21,548 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99
W. Nicholas Howley TDG Common Stock Options Exercise 47.2% 10,168 31,716 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99
W. Nicholas Howley TDG Stock Option Options Exercise -36% -10,168 18,040 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99
Joel Reiss TDG Common Stock Sale -52% $5,046,141 $1293.88 -3,900 3,600 17 Feb 2026 Direct
Joel Reiss TDG Common Stock Options Exercise 108.3% 3,900 7,500 17 Feb 2026 Direct
Joel Reiss TDG Stock Option Options Exercise -11% -3,900 31,400 17 Feb 2026 Direct
Michael Lisman TDG Common Stock Purchase 41.1% $1,220,048 $1284.26 950 3,259 06 Feb 2026 Direct
Sarah Wynne TDG Common Stock Options Exercise 43.9% 1,494 4,894 05 Feb 2026 Direct
Sarah Wynne TDG Stock Option Options Exercise -29.9% -1,494 3,506 05 Feb 2026 Direct
Kevin M. Stein TDG Common Stock Sale -57.6% $15,886,980 $1434.49 -11,075 8,158 02 Feb 2026 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Common Stock Sale -65.8% $52,647,126 $1425.79 -36,925 19,233 02 Feb 2026 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Common Stock Options Exercise 588.4% 48,000 56,158 02 Feb 2026 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Stock Option. Options Exercise -72.8% -48,000 17,940 02 Feb 2026 Fortuna Trust dated June 1, 2018
Patrick Joseph Murphy TDG Common Stock Sale -21.6% $414,729 $1430.10 -290 1,055 02 Feb 2026 Direct
Patrick Joseph Murphy TDG Common Stock Options Exercise 27.5% 290 1,345 02 Feb 2026 Direct
Patrick Joseph Murphy TDG Stock Option Options Exercise -20% -290 1,160 02 Feb 2026 Direct
Joel Reiss TDG Common Stock Sale -52% $5,576,695 $1429.92 -3,900 3,600 15 Jan 2026 Direct
Joel Reiss TDG Common Stock Options Exercise 108.3% 3,900 7,500 15 Jan 2026 Direct
Joel Reiss TDG Stock Option Options Exercise -9.95% -3,900 35,300 15 Jan 2026 Direct
Kevin M. Stein TDG Common Stock Sale -48.3% $10,726,454 $1406.38 -7,627 8,158 14 Jan 2026 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Common Stock Options Exercise 93.5% 7,627 15,785 14 Jan 2026 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Stock Option. Options Exercise -15.1% -7,627 43,000 14 Jan 2026 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Common Stock Sale -68% $24,448,106 $1407.25 -17,373 8,158 08 Jan 2026 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Common Stock Options Exercise 213% 17,373 25,531 08 Jan 2026 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Stock Option. Options Exercise -25.6% -17,373 50,627 08 Jan 2026 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Common Stock Sale -75.4% $34,339,837 $1373.59 -25,000 8,158 05 Jan 2026 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Common Stock Options Exercise 306.4% 25,000 33,158 05 Jan 2026 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Stock Option Options Exercise -55.6% -25,000 20,000 05 Jan 2026 Fortuna Trust dated June 1, 2018
Patrick J. Murphy TDG Common Stock Sale -21.6% $385,419 $1329.03 -290 1,055 02 Jan 2026 Direct
Patrick J. Murphy TDG Common Stock Options Exercise 27.5% 290 1,345 02 Jan 2026 Direct
Patrick J. Murphy TDG Stock Option Options Exercise -16.7% -290 1,450 02 Jan 2026 Direct
Joel Reiss TDG Common Stock Sale -52% $5,033,033 $1290.52 -3,900 3,600 15 Dec 2025 Direct
Joel Reiss TDG Common Stock Options Exercise 108.3% 3,900 7,500 15 Dec 2025 Direct
Joel Reiss TDG Stock Option Options Exercise -9.05% -3,900 39,200 15 Dec 2025 Direct
Robert J. Small TDG Common Stock Sale -45.5% $6,063,879 $1290.19 -4,700 5,625 10 Dec 2025 Direct
Robert J. Small TDG Common Stock Options Exercise 83.6% 4,700 10,325 10 Dec 2025 Direct
Robert J. Small TDG Stock Option Options Exercise -100% -4,700 0 10 Dec 2025 Direct
Robert J. Small TDG Common Stock Sale -18.3% $20,409,802 $1335.72 -15,280 68,139 09 Dec 2025 By Stockbridge Partners LLC
Robert J. Small TDG Common Stock Sale -17.1% $101,077,940 $1335.72 -75,673 366,141 09 Dec 2025 By Stockbridge Fund, L.P.
Kevin M. Stein TDG Common Stock Sale -68.2% $23,875,414 $1362.29 -17,526 8,158 04 Dec 2025 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Common Stock Options Exercise 214.8% 17,526 25,684 04 Dec 2025 Fortuna Trust dated June 1, 2018
Kevin M. Stein TDG Stock Option Options Exercise -31.6% -17,526 37,940 04 Dec 2025 Fortuna Trust dated June 1, 2018
Patrick J. Murphy TDG Common Stock Sale -21.6% $391,807 $1351.06 -290 1,055 01 Dec 2025 Direct
Patrick J. Murphy TDG Common Stock Options Exercise 27.5% 290 1,345 01 Dec 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.