X0306 4 2021-11-18 0 0001260221 TransDigm Group INC TDG 0001431675 Stein Kevin M 1301 E. 9TH ST. SUITE 3000 CLEVELAND OH 44114 0 1 0 0 President & CEO Common Stock 2021-11-18 4 M 0 40000 191.79 A 41347 D Common Stock 2021-11-18 4 S 0 2074 659.9214 D 39273 D Common Stock 2021-11-18 4 S 0 28235 660.916 D 11038 D Common Stock 2021-11-18 4 S 0 2330 661.797 D 8708 D Common Stock 2021-11-18 4 S 0 3169 663.4057 D 5539 D Common Stock 2021-11-18 4 S 0 3182 664.0691 D 2357 D Common Stock 2021-11-18 4 S 0 1010 664.9987 D 1347 D Stock Option 191.79 2021-11-18 4 M 0 40000 0.00 D 2015-09-30 2024-11-13 Common Stock 40000 38800 D Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $659.495 - $660.48. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $660.51 - $661.50. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $661.52 - $662.485. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $662.86 - $663.84. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $663.87 - $664.835. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $664.97 - $665.13. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Halle Martin as attorney in fact for Kevin Stein. 2021-11-22