X0508 4 2026-02-17 0001260221 TransDigm Group INC TDG 0001656109 Reiss Joel 1350 EUCLID AVE SUITE 1600 CLEVELAND OH 44115 false true false false Co-Chief Operating Officer true Common Stock 2026-02-17 4 M false 3900 284.97 A 7500 D Common Stock 2026-02-17 4 S false 27 1279.6759 D 7473 D Common Stock 2026-02-17 4 S false 113 1280.7198 D 7360 D Common Stock 2026-02-17 4 S false 99 1282.4372 D 7261 D Common Stock 2026-02-17 4 S false 71 1283.2217 D 7190 D Common Stock 2026-02-17 4 S false 120 1284.7131 D 7070 D Common Stock 2026-02-17 4 S false 120 1286.0584 D 6950 D Common Stock 2026-02-17 4 S false 106 1287.1589 D 6844 D Common Stock 2026-02-17 4 S false 104 1287.9878 D 6740 D Common Stock 2026-02-17 4 S false 140 1289.1044 D 6600 D Common Stock 2026-02-17 4 S false 140 1290.2191 D 6460 D Common Stock 2026-02-17 4 S false 182 1291.1091 D 6278 D Common Stock 2026-02-17 4 S false 214 1292.3522 D 6064 D Common Stock 2026-02-17 4 S false 361 1293.2128 D 5703 D Common Stock 2026-02-17 4 S false 172 1294.3065 D 5531 D Common Stock 2026-02-17 4 S false 266 1295.5022 D 5265 D Common Stock 2026-02-17 4 S false 248 1296.6274 D 5017 D Common Stock 2026-02-17 4 S false 326 1297.4893 D 4691 D Common Stock 2026-02-17 4 S false 392 1298.7391 D 4299 D Common Stock 2026-02-17 4 S false 220 1299.5555 D 4079 D Common Stock 2026-02-17 4 S false 330 1300.9067 D 3749 D Common Stock 2026-02-17 4 S false 29 1302.4138 D 3720 D Common Stock 2026-02-17 4 S false 50 1303.9852 D 3670 D Common Stock 2026-02-17 4 S false 70 1305.2806 D 3600 D Stock Option 284.97 2026-02-17 4 M false 3900 0 D 2021-09-30 2027-11-08 Common Stock 3900 31400 D Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,279.3400 - $1,280.3100. 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 $1,280.3500 - $1,281.1200. 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 $1,281.9100 - $1,282.8900. 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 $1,283.0900 - $1,284.0000. 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 $1,284.3000 - $1,285.2300. 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 $1,285.5900 - $1,286.4800. 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 $1,286.6100 - $1,287.5600. 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 $1,287.6200 - $1,288.5500. 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 $1,288.7000 - $1,289.4200. 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 $1,289.7000 - $1,290.6300. 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 $1,290.7500 - $1,291.6500. 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 $1,291.8700 - $1,292.8600. 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 $1,292.9000 - $1,293.7800. 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 $1,293.9000 - $1,294.8300. 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 $1,294.9800 - $1,295.9400. 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 $1,296.0800 - $1,297.0700. 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 $1,297.1700 - $1,298.0500. 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 $1,298.2500 - $1,299.1700. 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 $1,299.2500 - $1,300.0800. 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 $1,300.2800 - $1,301.1900. 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 $1,302.2000 - $1,302.5200. 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 $1,303.7400 - $1,304.4100. 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 $1,305.0800 - $1,305.6200. 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 2026-02-18