TransDigm Group INC — Director's Dealing 2011

Feb 17, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TransDigm Group INC (TDG)
CIK: 0001260221
Period of Report: 2011-02-15

Reporting Person: HENNESSY SEAN P (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-02-15	Common Stock	P	5000	$81.6593	Acquired	13630	Direct

Footnotes

F1: Price reported constitutes the average weighted price of shares purchased. Shares were sold at varying prices in the range of $81.65 - $81.67. 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 purchased at each separate price.