TransDigm Group INC — Director's Dealing 2012

Sep 18, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TransDigm Group INC (TDG)
CIK: 0001260221
Period of Report: 2012-09-17

Reporting Person: Laubenthal Raymond F (President and COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-09-17	Common Stock	M	4000	$6.68	Acquired	64069	Direct
2012-09-17	Common Stock	S	3805	$143.899	Disposed	60264	Direct
2012-09-17	Common Stock	S	195	$145.066	Disposed	60069	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-09-17	Stock Option	$6.68	M	4000	Disposed	2013-08-05	Common Stock (4000)	Direct

Footnotes

F1: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $143.60 - $144.24. 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.

F2: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $145.03 - $145.10. 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.