TransDigm Group INC — Director's Dealing 2011

Aug 29, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TransDigm Group INC (TDG)
CIK: 0001260221
Period of Report: 2011-08-26

Reporting Person: Laubenthal Raymond F (President and COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-08-26	Common Stock	M	1232	$6.68	Acquired	61301	Direct
2011-08-26	Common Stock	S	1232	$88.00	Disposed	60069	Direct
2011-08-29	Common Stock	M	1768	$6.68	Acquired	61837	Direct
2011-08-29	Common Stock	S	1768	$89.0614	Disposed	60069	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-08-26	Stock Option	$6.68	M	1232	Disposed	2013-08-05	Common Stock (1232)	Direct
2011-08-29	Stock Option	$6.68	M	1768	Disposed	2013-08-05	Common Stock (1768)	Direct

Footnotes

F1: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $89.00 - $89.19. 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.