X0609 4 2026-10-15 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 2026-10-15 4 M false 4100.00 284.97 A 7700.00 D Common Stock 2026-10-15 4 S false 20.00 1112.265 D 7680.00 D Common Stock 2026-10-15 4 S false 100.00 1113.5836 D 7580.00 D Common Stock 2026-10-15 4 S false 100.00 1114.8205 D 7480.00 D Common Stock 2026-10-15 4 S false 50.00 1116.024 D 7430.00 D Common Stock 2026-10-15 4 S false 60.00 1117.11 D 7370.00 D Common Stock 2026-10-15 4 S false 100.00 1119.0135 D 7270.00 D Common Stock 2026-10-15 4 S false 30.00 1120.3033 D 7240.00 D Common Stock 2026-10-15 4 S false 60.00 1121.5767 D 7180.00 D Common Stock 2026-10-15 4 S false 131.00 1123.0856 D 7049.00 D Common Stock 2026-10-15 4 S false 306.00 1124.00 D 6743.00 D Common Stock 2026-10-15 4 S false 600.00 1125.0009 D 6143.00 D Common Stock 2026-10-15 4 S false 278.00 1125.8595 D 5865.00 D Common Stock 2026-10-15 4 S false 305.00 1127.0115 D 5560.00 D Common Stock 2026-10-15 4 S false 120.00 1127.9018 D 5440.00 D Common Stock 2026-10-15 4 S false 150.00 1129.3783 D 5290.00 D Common Stock 2026-10-15 4 S false 100.00 1130.056 D 5190.00 D Common Stock 2026-10-15 4 S false 130.00 1131.3268 D 5060.00 D Common Stock 2026-10-15 4 S false 210.00 1132.2985 D 4850.00 D Common Stock 2026-10-15 4 S false 317.00 1133.8868 D 4533.00 D Common Stock 2026-10-15 4 S false 495.00 1134.9967 D 4038.00 D Common Stock 2026-10-15 4 S false 438.00 1135.9542 D 3600.00 D Stock Option 284.97 2026-10-15 4 M false 4100.00 0.00 D 2021-09-30 2027-11-08 Common Stock 4100.00 0.00 D Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,111.9600 - $1,112.5700. 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 $1,123.4400 - $1,124.4100. 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 $1,124.4600 - $1,125.4400. 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 $1,125.4800 - $1,126.3300. 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 $1,126.4800 - $1,127.4500. 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 $1,127.6400 - $1,128.5000. 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 $1,128.7700 - $1,129.7600. 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 $1,129.8000 - $1,130.7600. 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 $1,130.9100 - $1,131.7800. 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 $1,131.9200 - $1,132.8800. 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 $1,133.4400 - $1,134.4150. 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 $1,113.2100 - $1,114.0300. 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 $1,134.4700 - $1,135.4500. 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 $1,135.5100 - $1,136.2400. 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 $1,114.5200 - $1,115.1300. 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 $1,115.7000 - $1,116.6700. 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 $1,116.7500 - $1,117.6800. 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 $1,118.6700 - $1,119.2000. 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 $1,120.2200 - $1,120.3500. 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 $1,121.2600 - $1,122.0700. 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 $1,122.4300 - $1,123.3800. 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. /s/ Rachel L. Quinlan as attorney in fact for Joel Reiss 2026-10-16