X0609 4 2026-08-17 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 2026-08-17 4 M false 3900.00 284.97 A 7500.00 D Common Stock 2026-08-17 4 S false 140.00 1232.816 D 7360.00 D Common Stock 2026-08-17 4 S false 260.00 1233.8684 D 7100.00 D Common Stock 2026-08-17 4 S false 327.00 1234.9279 D 6773.00 D Common Stock 2026-08-17 4 S false 373.00 1235.8581 D 6400.00 D Common Stock 2026-08-17 4 S false 671.00 1236.799 D 5729.00 D Common Stock 2026-08-17 4 S false 499.00 1237.868 D 5230.00 D Common Stock 2026-08-17 4 S false 340.00 1238.8357 D 4890.00 D Common Stock 2026-08-17 4 S false 400.00 1239.9924 D 4490.00 D Common Stock 2026-08-17 4 S false 120.00 1240.778 D 4370.00 D Common Stock 2026-08-17 4 S false 112.00 1242.2834 D 4258.00 D Common Stock 2026-08-17 4 S false 138.00 1243.026 D 4120.00 D Common Stock 2026-08-17 4 S false 100.00 1243.91 D 4020.00 D Common Stock 2026-08-17 4 S false 145.00 1245.2852 D 3875.00 D Common Stock 2026-08-17 4 S false 37.00 1245.897 D 3838.00 D Common Stock 2026-08-17 4 S false 48.00 1247.3063 D 3790.00 D Common Stock 2026-08-17 4 S false 60.00 1248.2583 D 3730.00 D Common Stock 2026-08-17 4 S false 20.00 1250.823 D 3710.00 D Common Stock 2026-08-17 4 S false 80.00 1252.1149 D 3630.00 D Common Stock 2026-08-17 4 S false 30.00 1253.082 D 3600.00 D Stock Option 284.97 2026-08-17 4 M false 3900.00 0.00 D 2021-09-30 2027-11-08 Common Stock 3900.00 8000.00 D Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,232.2750 - $1,233.1900. 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 $1,241.6000 - $1,242.5500. 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 $1,242.6200 - $1,243.5300. 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 $1,243.6700 - $1,244.5000. 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 $1,244.7300 - $1,245.5800. 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 $1,245.7500 - $1,246.1600. 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 $1,246.8900 - $1,247.8550. 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 $1,247.9400 - $1,248.6700. 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 $1,250.6200 - $1,251.0100. 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 $1,251.6500 - $1,252.5000. 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 $1,252.7500 - $1,253.5500. 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 $1,233.3700 - $1,234.3600. 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 $1,234.3700 - $1,235.3600. 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 $1,235.4200 - $1,236.3800. 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 $1,236.4300 - $1,237.4100. 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 $1,237.4300 - $1,238.3900. 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 $1,238.4300 - $1,239.2900. 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 $1,239.4400 - $1,240.4200. 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 $1,240.6000 - $1,241.2200. 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 2026-08-18