X0306 4 2020-11-09 0 0001260221 TransDigm Group INC TDG 0001752984 Terrion Halle Fine 1300 E 9TH ST, SUITE 3000 CLEVELAND OH 44114 0 1 0 0 GC, CCO, Secretary Common Stock 2020-11-09 4 M 0 12225 113.15 A 13103 D Common Stock 2020-11-09 4 S 0 388 572.3844 D 12715 D Common Stock 2020-11-09 4 S 0 512 574.3155 D 12203 D Common Stock 2020-11-09 4 S 0 677 575.102 D 11526 D Common Stock 2020-11-09 4 S 0 800 576.751 D 10726 D Common Stock 2020-11-09 4 S 0 75 578.27 D 10651 D Common Stock 2020-11-09 4 S 0 25 579.31 D 10626 D Common Stock 2020-11-09 4 S 0 154 581.0649 D 10472 D Common Stock 2020-11-09 4 S 0 336 582.1648 D 10136 D Common Stock 2020-11-09 4 S 0 100 583.70 D 10036 D Common Stock 2020-11-09 4 S 0 700 587.6056 D 9336 D Common Stock 2020-11-09 4 S 0 200 591.7015 D 9136 D Common Stock 2020-11-09 4 S 0 100 595.54 D 9036 D Common Stock 2020-11-09 4 S 0 1645 596.9624 D 7391 D Common Stock 2020-11-09 4 S 0 255 598.0073 D 7136 D Common Stock 2020-11-09 4 S 0 800 599.8247 D 6336 D Common Stock 2020-11-09 4 S 0 296 600.5559 D 6040 D Common Stock 2020-11-09 4 S 0 1166 601.8549 D 4874 D Common Stock 2020-11-09 4 S 0 601 602.5961 D 4273 D Common Stock 2020-11-09 4 S 0 1600 603.775 D 2673 D Common Stock 2020-11-09 4 S 0 491 604.9435 D 2182 D Common Stock 2020-11-09 4 S 0 573 606.3882 D 1609 D Common Stock 2020-11-09 4 S 0 335 607.2754 D 1274 D Common Stock 2020-11-09 4 S 0 296 608.6901 D 978 D Common Stock 2020-11-09 4 S 0 100 610.48 D 878 D Stock Option 113.15 2020-11-09 4 M 0 12225 0.00 D 2012-09-30 2022-03-19 Common Stock 12225 1275 D Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $572.08 - $572.75. 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 $573.50 - $574.46. 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 $574.75 - $575.59. 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 $576.63 - $577.00. 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 $580.37 - $581.26. 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 $581.98 - $582.56. 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 $587.48 - $587.70. 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 $591.42 - $591.96. 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 $596.66 - $597.61. 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 $597.80 - $598.47. 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 $599.09 - $600.00. 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 $600.32 - $601.05. 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 $601.34 - $602.26. 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 $602.34 - $602.98. 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 $603.43 - $603.89. 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 $604.44 - $605.41. 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 $605.75 - $606.73. 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 $606.78 - $607.55. 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 $608.46 - $608.81. 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. All transactions reported hereunder were made pursuant to an established 10b5-1 Plan. Halle Fine Terrion 2020-11-10