X0508 4 2025-11-14 0001260221 TransDigm Group INC TDG 0001748275 Lisman Michael 1350 EUCLID AVENUE SUITE 1600 CLEVELAND OH 44115 true true false false President & CEO false Common Stock 2025-11-14 4 P false 600 1334.1300 A 600 I Michael Lisman Declaration of Trust dated January 31, 2023 Common Stock 2025-11-14 4 P false 55 1337.3825 A 655 I Michael Lisman Declaration of Trust dated January 31, 2023 Common Stock 2025-11-14 4 P false 290 1338.5578 A 945 I Michael Lisman Declaration of Trust dated January 31, 2023 Common Stock 2025-11-14 4 P false 521 1341.4904 A 1466 I Michael Lisman Declaration of Trust dated January 31, 2023 Common Stock 2025-11-14 4 P false 384 1342.9335 A 1850 I Michael Lisman Declaration of Trust dated January 31, 2023 Common Stock 2025-11-14 4 P false 104 1344.7603 A 1954 I Michael Lisman Declaration of Trust dated January 31, 2023 Common Stock 2309 D Common Stock 1954 I Michael Lisman Declaration of Trust dated January 31, 2023 These shares were inadvertently omitted from the reporting person's Form 4 filed on February 27, 2024 The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1,336.8350 to $1,337.7575. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price. The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1,338.1500 to $1,338.5650. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price. The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1,341.4900 to $1,341.7100. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price. The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1,342.7350 to $1,343.3100. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price. The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1,344.3700 to $1,344.7800. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price. /s/ Rachel L. Quinlan as attorney in fact for Michael J. Lisman 2025-11-17