X0609 4 2026-09-15 false 0001260221 TransDigm Group INC TDG 0001656109 Reiss Joel false 1350 EUCLID AVE SUITE 1600 CLEVELAND OH 44115 false true false false Co-Chief Operating Officer true Common Stock 2026-09-15 4 M false 3900.00 284.97 A 7500.00 D Common Stock 2026-09-15 4 S false 310.00 1082.9639 D 7190.00 D Common Stock 2026-09-15 4 S false 170.00 1083.6729 D 7020.00 D Common Stock 2026-09-15 4 S false 240.00 1084.8696 D 6780.00 D Common Stock 2026-09-15 4 S false 110.00 1086.2727 D 6670.00 D Common Stock 2026-09-15 4 S false 120.00 1087.4892 D 6550.00 D Common Stock 2026-09-15 4 S false 10.00 1088.06 D 6540.00 D Common Stock 2026-09-15 4 S false 70.00 1090.0571 D 6470.00 D Common Stock 2026-09-15 4 S false 100.00 1091.0018 D 6370.00 D Common Stock 2026-09-15 4 S false 170.00 1092.1284 D 6200.00 D Common Stock 2026-09-15 4 S false 282.00 1093.1036 D 5918.00 D Common Stock 2026-09-15 4 S false 383.00 1094.0605 D 5535.00 D Common Stock 2026-09-15 4 S false 225.00 1095.1079 D 5310.00 D Common Stock 2026-09-15 4 S false 196.00 1096.1685 D 5114.00 D Common Stock 2026-09-15 4 S false 294.00 1097.2633 D 4820.00 D Common Stock 2026-09-15 4 S false 150.00 1098.407 D 4670.00 D Common Stock 2026-09-15 4 S false 90.00 1099.1429 D 4580.00 D Common Stock 2026-09-15 4 S false 60.00 1100.4055 D 4520.00 D Common Stock 2026-09-15 4 S false 166.00 1101.5243 D 4354.00 D Common Stock 2026-09-15 4 S false 274.00 1102.4893 D 4080.00 D Common Stock 2026-09-15 4 S false 210.00 1103.4377 D 3870.00 D Common Stock 2026-09-15 4 S false 125.00 1104.5772 D 3745.00 D Common Stock 2026-09-15 4 S false 5.00 1105.284 D 3740.00 D Common Stock 2026-09-15 4 S false 40.00 1106.6873 D 3700.00 D Common Stock 2026-09-15 4 S false 30.00 1108.3433 D 3670.00 D Common Stock 2026-09-15 4 S false 30.00 1112.3767 D 3640.00 D Common Stock 2026-09-15 4 S false 20.00 1113.37 D 3620.00 D Common Stock 2026-09-15 4 S false 20.00 1118.995 D 3600.00 D Stock Option 284.97 2026-09-15 4 M false 3900.00 0.00 D 2021-09-30 2027-11-08 Common Stock 3900.00 4100.00 D Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,082.3500 - $1,083.2700. 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 $1,093.6200 - $1,094.5600. 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 $1,094.6300 - $1,095.5700. 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 $1,095.7000 - $1,096.6900. 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 $1,096.7000 - $1,097.6900. 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 $1,097.7200 - $1,098.7100. 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 $1,098.7700 - $1,099.6500. 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 $1,099.9300 - $1,100.7000. 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 $1,100.9400 - $1,101.9200. 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 $1,102.0000 - $1,102.9800. 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 $1,103.0100 - $1,103.8850. 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 $1,083.3700 - $1,084.2700. 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 $1,104.0300 - $1,105.0100. 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 $1,105.2400 - $1,105.4600. 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 $1,106.3200 - $1,106.8900. 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 $1,108.2300 - $1,108.4000. 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 $1,112.3400 - $1,112.4500. 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 $1,118.9700 - $1,119.0200. 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 $1,084.6500 - $1,085.2700. 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 $1,085.7600 - $1,086.5700. 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 $1,087.0000 - $1,087.9200. 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 $1,089.5400 - $1,090.3600. 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 $1,090.5800 - $1,091.4500. 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 $1,091.5800 - $1,092.5700. 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 $1,092.5800 - $1,093.5700. 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. /s/ Rachel L. Quinlan as attorney in fact for Joel Reiss 2026-09-16