X0407 4 2023-06-09 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 1 Common Stock 2023-06-09 4 M 0 11833 250.92 A 11833 D Common Stock 2023-06-09 4 S 0 5467 795.0578 D 6366 D Common Stock 2023-06-09 4 S 0 2010 796.2649 D 4356 D Common Stock 2023-06-09 4 S 0 656 797.2263 D 3700 D Common Stock 2023-06-09 4 S 0 375 798.2616 D 3325 D Common Stock 2023-06-09 4 S 0 325 799.0556 D 3000 D Common Stock 2023-06-09 4 S 0 13 800.8488 D 2987 D Common Stock 2023-06-09 4 S 0 281 802.8494 D 2706 D Common Stock 2023-06-09 4 S 0 925 803.9189 D 1781 D Common Stock 2023-06-09 4 S 0 515 804.8489 D 1266 D Common Stock 2023-06-09 4 S 0 520 805.9004 D 746 D Common Stock 2023-06-09 4 S 0 606 806.7666 D 140 D Common Stock 2023-06-09 4 S 0 140 808.0518 D 0 D Stock Option 250.92 2023-06-09 4 M 0 11833 0.00 D 2020-09-30 2026-11-10 Common Stock 11833 23667 D The exercise price has been adjusted for dividends declared since August 1, 2022. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $794.72 - $795.67. 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 $795.74 - $796.735. 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 purchased. Shares were purchased at varying prices in the range of $796.755 - $797.605. 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 purchased at each separate price. Price reported constitutes the average weighted price of shares purchased. Shares were purchased at varying prices in the range of $797.80 - $798.675. 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 purchased at each separate price. Price reported constitutes the average weighted price of shares purchased. Shares were purchased at varying prices in the range of $798.825 - $799.585. 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 purchased at each separate price. Price reported constitutes the average weighted price of shares purchased. Shares were purchased at varying prices in the range of $802.24 - $803.185. 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 purchased at each separate price. Price reported constitutes the average weighted price of shares purchased. Shares were purchased at varying prices in the range of $803.36 - $804.32. 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 purchased at each separate price. Price reported constitutes the average weighted price of shares purchased. Shares were purchased at varying prices in the range of $804.42 - $805.265. 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 purchased at each separate price. Price reported constitutes the average weighted price of shares purchased. Shares were purchased at varying prices in the range of $805.45 - $806.44. 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 purchased at each separate price. Price reported constitutes the average weighted price of shares purchased. Shares were purchased at varying prices in the range of $806.45 - $807.075. 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 purchased at each separate price. Price reported constitutes the average weighted price of shares purchased. Shares were purchased at varying prices in the range of $807.69 - $808.605. 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 purchased at each separate price. /s/ Gabrielle Feuer attorney-in-fact 2023-06-11